/**
 * The `crypto` module provides cryptographic functionality that includes a set of
 * wrappers for OpenSSL's hash, HMAC, cipher, decipher, sign, and verify functions.
 *
 * ```js
 * const { createHmac } = await import('crypto');
 *
 * const secret = 'abcdefg';
 * const hash = createHmac('sha256', secret)
 *                .update('I love cupcakes')
 *                .digest('hex');
 * console.log(hash);
 * // Prints:
 * //   c0fa1bc00531bd78ef38c628449c5102aeabd49b5dc3a2a516ea6ea959d6658e
 * ```
 * @see [source](https://github.com/nodejs/node/blob/v16.9.0/lib/crypto.js)
 */
declare module 'crypto' {
    import * as stream from 'node:stream';
    import { PeerCertificate } from 'node:tls';
    interface Certificate {
        /**
         * @deprecated
         * @param spkac
         * @returns The challenge component of the `spkac` data structure,
         * which includes a public key and a challenge.
         */
        exportChallenge(spkac: BinaryLike): Buffer;
        /**
         * @deprecated
         * @param spkac
         * @param encoding The encoding of the spkac string.
         * @returns The public key component of the `spkac` data structure,
         * which includes a public key and a challenge.
         */
        exportPublicKey(spkac: BinaryLike, encoding?: string): Buffer;
        /**
         * @deprecated
         * @param spkac
         * @returns `true` if the given `spkac` data structure is valid,
         * `false` otherwise.
         */
        verifySpkac(spkac: NodeJS.ArrayBufferView): boolean;
    }
    const Certificate: Certificate & {
        /** @deprecated since v14.9.0 - Use static methods of `crypto.Certificate` instead. */
        new (): Certificate;
        /** @deprecated since v14.9.0 - Use static methods of `crypto.Certificate` instead. */
        (): Certificate;
        /**
         * @param spkac
         * @returns The challenge component of the `spkac` data structure,
         * which includes a public key and a challenge.
         */
        exportChallenge(spkac: BinaryLike): Buffer;
        /**
         * @param spkac
         * @param encoding The encoding of the spkac string.
         * @returns The public key component of the `spkac` data structure,
         * which includes a public key and a challenge.
         */
        exportPublicKey(spkac: BinaryLike, encoding?: string): Buffer;
        /**
         * @param spkac
         * @returns `true` if the given `spkac` data structure is valid,
         * `false` otherwise.
         */
        verifySpkac(spkac: NodeJS.ArrayBufferView): boolean;
    };
    namespace constants {
        // https://nodejs.org/dist/latest-v10.x/docs/api/crypto.html#crypto_crypto_constants
        const OPENSSL_VERSION_NUMBER: number;
        /** Applies multiple bug workarounds within OpenSSL. See https://www.openssl.org/docs/man1.0.2/ssl/SSL_CTX_set_options.html for detail. */
        const SSL_OP_ALL: number;
        /** Allows legacy insecure renegotiation between OpenSSL and unpatched clients or servers. See https://www.openssl.org/docs/man1.0.2/ssl/SSL_CTX_set_options.html. */
        const SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION: number;
        /** Attempts to use the server's preferences instead of the client's when selecting a cipher. See https://www.openssl.org/docs/man1.0.2/ssl/SSL_CTX_set_options.html. */
        const SSL_OP_CIPHER_SERVER_PREFERENCE: number;
        /** Instructs OpenSSL to use Cisco's "speshul" version of DTLS_BAD_VER. */
        const SSL_OP_CISCO_ANYCONNECT: number;
        /** Instructs OpenSSL to turn on cookie exchange. */
        const SSL_OP_COOKIE_EXCHANGE: number;
        /** Instructs OpenSSL to add server-hello extension from an early version of the cryptopro draft. */
        const SSL_OP_CRYPTOPRO_TLSEXT_BUG: number;
        /** Instructs OpenSSL to disable a SSL 3.0/TLS 1.0 vulnerability workaround added in OpenSSL 0.9.6d. */
        const SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS: number;
        /** Instructs OpenSSL to always use the tmp_rsa key when performing RSA operations. */
        const SSL_OP_EPHEMERAL_RSA: number;
        /** Allows initial connection to servers that do not support RI. */
        const SSL_OP_LEGACY_SERVER_CONNECT: number;
        const SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER: number;
        const SSL_OP_MICROSOFT_SESS_ID_BUG: number;
        /** Instructs OpenSSL to disable the workaround for a man-in-the-middle protocol-version vulnerability in the SSL 2.0 server implementation. */
        const SSL_OP_MSIE_SSLV2_RSA_PADDING: number;
        const SSL_OP_NETSCAPE_CA_DN_BUG: number;
        const SSL_OP_NETSCAPE_CHALLENGE_BUG: number;
        const SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG: number;
        const SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG: number;
        /** Instructs OpenSSL to disable support for SSL/TLS compression. */
        const SSL_OP_NO_COMPRESSION: number;
        const SSL_OP_NO_QUERY_MTU: number;
        /** Instructs OpenSSL to always start a new session when performing renegotiation. */
        const SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION: number;
        const SSL_OP_NO_SSLv2: number;
        const SSL_OP_NO_SSLv3: number;
        const SSL_OP_NO_TICKET: number;
        const SSL_OP_NO_TLSv1: number;
        const SSL_OP_NO_TLSv1_1: number;
        const SSL_OP_NO_TLSv1_2: number;
        const SSL_OP_PKCS1_CHECK_1: number;
        const SSL_OP_PKCS1_CHECK_2: number;
        /** Instructs OpenSSL to always create a new key when using temporary/ephemeral DH parameters. */
        const SSL_OP_SINGLE_DH_USE: number;
        /** Instructs OpenSSL to always create a new key when using temporary/ephemeral ECDH parameters. */
        const SSL_OP_SINGLE_ECDH_USE: number;
        const SSL_OP_SSLEAY_080_CLIENT_DH_BUG: number;
        const SSL_OP_SSLREF2_REUSE_CERT_TYPE_BUG: number;
        const SSL_OP_TLS_BLOCK_PADDING_BUG: number;
        const SSL_OP_TLS_D5_BUG: number;
        /** Instructs OpenSSL to disable version rollback attack detection. */
        const SSL_OP_TLS_ROLLBACK_BUG: number;
        const ENGINE_METHOD_RSA: number;
        const ENGINE_METHOD_DSA: number;
        const ENGINE_METHOD_DH: number;
        const ENGINE_METHOD_RAND: number;
        const ENGINE_METHOD_EC: number;
        const ENGINE_METHOD_CIPHERS: number;
        const ENGINE_METHOD_DIGESTS: number;
        const ENGINE_METHOD_PKEY_METHS: number;
        const ENGINE_METHOD_PKEY_ASN1_METHS: number;
        const ENGINE_METHOD_ALL: number;
        const ENGINE_METHOD_NONE: number;
        const DH_CHECK_P_NOT_SAFE_PRIME: number;
        const DH_CHECK_P_NOT_PRIME: number;
        const DH_UNABLE_TO_CHECK_GENERATOR: number;
        const DH_NOT_SUITABLE_GENERATOR: number;
        const ALPN_ENABLED: number;
        const RSA_PKCS1_PADDING: number;
        const RSA_SSLV23_PADDING: number;
        const RSA_NO_PADDING: number;
        const RSA_PKCS1_OAEP_PADDING: number;
        const RSA_X931_PADDING: number;
        const RSA_PKCS1_PSS_PADDING: number;
        /** Sets the salt length for RSA_PKCS1_PSS_PADDING to the digest size when signing or verifying. */
        const RSA_PSS_SALTLEN_DIGEST: number;
        /** Sets the salt length for RSA_PKCS1_PSS_PADDING to the maximum permissible value when signing data. */
        const RSA_PSS_SALTLEN_MAX_SIGN: number;
        /** Causes the salt length for RSA_PKCS1_PSS_PADDING to be determined automatically when verifying a signature. */
        const RSA_PSS_SALTLEN_AUTO: number;
        const POINT_CONVERSION_COMPRESSED: number;
        const POINT_CONVERSION_UNCOMPRESSED: number;
        const POINT_CONVERSION_HYBRID: number;
        /** Specifies the built-in default cipher list used by Node.js (colon-separated values). */
        const defaultCoreCipherList: string;
        /** Specifies the active default cipher list used by the current Node.js process  (colon-separated values). */
        const defaultCipherList: string;
    }
    interface HashOptions extends stream.TransformOptions {
        /**
         * For XOF hash functions such as `shake256`, the
         * outputLength option can be used to specify the desired output length in bytes.
         */
        outputLength?: number | undefined;
    }
    /** @deprecated since v10.0.0 */
    const fips: boolean;
    /**
     * Creates and returns a `Hash` object that can be used to generate hash digests
     * using the given `algorithm`. Optional `options` argument controls stream
     * behavior. For XOF hash functions such as `'shake256'`, the `outputLength` option
     * can be used to specify the desired output length in bytes.
     *
     * The `algorithm` is dependent on the available algorithms supported by the
     * version of OpenSSL on the platform. Examples are `'sha256'`, `'sha512'`, etc.
     * On recent releases of OpenSSL, `openssl list -digest-algorithms`(`openssl list-message-digest-algorithms` for older versions of OpenSSL) will
     * display the available digest algorithms.
     *
     * Example: generating the sha256 sum of a file
     *
     * ```js
     * import {
     *   createReadStream
     * } from 'fs';
     * import { argv } from 'process';
     * const {
     *   createHash
     * } = await import('crypto');
     *
     * const filename = argv[2];
     *
     * const hash = createHash('sha256');
     *
     * const input = createReadStream(filename);
     * input.on('readable', () => {
     *   // Only one element is going to be produced by the
     *   // hash stream.
     *   const data = input.read();
     *   if (data)
     *     hash.update(data);
     *   else {
     *     console.log(`${hash.digest('hex')} ${filename}`);
     *   }
     * });
     * ```
     * @since v0.1.92
     * @param options `stream.transform` options
     */
    function createHash(algorithm: string, options?: HashOptions): Hash;
    /**
     * Creates and returns an `Hmac` object that uses the given `algorithm` and `key`.
     * Optional `options` argument controls stream behavior.
     *
     * The `algorithm` is dependent on the available algorithms supported by the
     * version of OpenSSL on the platform. Examples are `'sha256'`, `'sha512'`, etc.
     * On recent releases of OpenSSL, `openssl list -digest-algorithms`(`openssl list-message-digest-algorithms` for older versions of OpenSSL) will
     * display the available digest algorithms.
     *
     * The `key` is the HMAC key used to generate the cryptographic HMAC hash. If it is
     * a `KeyObject`, its type must be `secret`.
     *
     * Example: generating the sha256 HMAC of a file
     *
     * ```js
     * import {
     *   createReadStream
     * } from 'fs';
     * import { argv } from 'process';
     * const {
     *   createHmac
     * } = await import('crypto');
     *
     * const filename = argv[2];
     *
     * const hmac = createHmac('sha256', 'a secret');
     *
     * const input = createReadStream(filename);
     * input.on('readable', () => {
     *   // Only one element is going to be produced by the
     *   // hash stream.
     *   const data = input.read();
     *   if (data)
     *     hmac.update(data);
     *   else {
     *     console.log(`${hmac.digest('hex')} ${filename}`);
     *   }
     * });
     * ```
     * @since v0.1.94
     * @param options `stream.transform` options
     */
    function createHmac(algorithm: string, key: BinaryLike | KeyObject, options?: stream.TransformOptions): Hmac;
    // https://nodejs.org/api/buffer.html#buffer_buffers_and_character_encodings
    type BinaryToTextEncoding = 'base64' | 'base64url' | 'hex';
    type CharacterEncoding = 'utf8' | 'utf-8' | 'utf16le' | 'latin1';
    type LegacyCharacterEncoding = 'ascii' | 'binary' | 'ucs2' | 'ucs-2';
    type Encoding = BinaryToTextEncoding | CharacterEncoding | LegacyCharacterEncoding;
    type ECDHKeyFormat = 'compressed' | 'uncompressed' | 'hybrid';
    /**
     * The `Hash` class is a utility for creating hash digests of data. It can be
     * used in one of two ways:
     *
     * * As a `stream` that is both readable and writable, where data is written
     * to produce a computed hash digest on the readable side, or
     * * Using the `hash.update()` and `hash.digest()` methods to produce the
     * computed hash.
     *
     * The {@link createHash} method is used to create `Hash` instances. `Hash`objects are not to be created directly using the `new` keyword.
     *
     * Example: Using `Hash` objects as streams:
     *
     * ```js
     * const {
     *   createHash
     * } = await import('crypto');
     *
     * const hash = createHash('sha256');
     *
     * hash.on('readable', () => {
     *   // Only one element is going to be produced by the
     *   // hash stream.
     *   const data = hash.read();
     *   if (data) {
     *     console.log(data.toString('hex'));
     *     // Prints:
     *     //   6a2da20943931e9834fc12cfe5bb47bbd9ae43489a30726962b576f4e3993e50
     *   }
     * });
     *
     * hash.write('some data to hash');
     * hash.end();
     * ```
     *
     * Example: Using `Hash` and piped streams:
     *
     * ```js
     * import { createReadStream } from 'fs';
     * import { stdout } from 'process';
     * const { createHash } = await import('crypto');
     *
     * const hash = createHash('sha256');
     *
     * const input = createReadStream('test.js');
     * input.pipe(hash).setEncoding('hex').pipe(stdout);
     * ```
     *
     * Example: Using the `hash.update()` and `hash.digest()` methods:
     *
     * ```js
     * const {
     *   createHash
     * } = await import('crypto');
     *
     * const hash = createHash('sha256');
     *
     * hash.update('some data to hash');
     * console.log(hash.digest('hex'));
     * // Prints:
     * //   6a2da20943931e9834fc12cfe5bb47bbd9ae43489a30726962b576f4e3993e50
     * ```
     * @since v0.1.92
     */
    class Hash extends stream.Transform {
        private constructor();
        /**
         * Creates a new `Hash` object that contains a deep copy of the internal state
         * of the current `Hash` object.
         *
         * The optional `options` argument controls stream behavior. For XOF hash
         * functions such as `'shake256'`, the `outputLength` option can be used to
         * specify the desired output length in bytes.
         *
         * An error is thrown when an attempt is made to copy the `Hash` object after
         * its `hash.digest()` method has been called.
         *
         * ```js
         * // Calculate a rolling hash.
         * const {
         *   createHash
         * } = await import('crypto');
         *
         * const hash = createHash('sha256');
         *
         * hash.update('one');
         * console.log(hash.copy().digest('hex'));
         *
         * hash.update('two');
         * console.log(hash.copy().digest('hex'));
         *
         * hash.update('three');
         * console.log(hash.copy().digest('hex'));
         *
         * // Etc.
         * ```
         * @since v13.1.0
         * @param options `stream.transform` options
         */
        copy(options?: stream.TransformOptions): Hash;
        /**
         * Updates the hash content with the given `data`, the encoding of which
         * is given in `inputEncoding`.
         * If `encoding` is not provided, and the `data` is a string, an
         * encoding of `'utf8'` is enforced. If `data` is a `Buffer`, `TypedArray`, or`DataView`, then `inputEncoding` is ignored.
         *
         * This can be called many times with new data as it is streamed.
         * @since v0.1.92
         * @param inputEncoding The `encoding` of the `data` string.
         */
        update(data: BinaryLike): Hash;
        update(data: string, inputEncoding: Encoding): Hash;
        /**
         * Calculates the digest of all of the data passed to be hashed (using the `hash.update()` method).
         * If `encoding` is provided a string will be returned; otherwise
         * a `Buffer` is returned.
         *
         * The `Hash` object can not be used again after `hash.digest()` method has been
         * called. Multiple calls will cause an error to be thrown.
         * @since v0.1.92
         * @param encoding The `encoding` of the return value.
         */
        digest(): Buffer;
        digest(encoding: BinaryToTextEncoding): string;
    }
    /**
     * The `Hmac` class is a utility for creating cryptographic HMAC digests. It can
     * be used in one of two ways:
     *
     * * As a `stream` that is both readable and writable, where data is written
     * to produce a computed HMAC digest on the readable side, or
     * * Using the `hmac.update()` and `hmac.digest()` methods to produce the
     * computed HMAC digest.
     *
     * The {@link createHmac} method is used to create `Hmac` instances. `Hmac`objects are not to be created directly using the `new` keyword.
     *
     * Example: Using `Hmac` objects as streams:
     *
     * ```js
     * const {
     *   createHmac
     * } = await import('crypto');
     *
     * const hmac = createHmac('sha256', 'a secret');
     *
     * hmac.on('readable', () => {
     *   // Only one element is going to be produced by the
     *   // hash stream.
     *   const data = hmac.read();
     *   if (data) {
     *     console.log(data.toString('hex'));
     *     // Prints:
     *     //   7fd04df92f636fd450bc841c9418e5825c17f33ad9c87c518115a45971f7f77e
     *   }
     * });
     *
     * hmac.write('some data to hash');
     * hmac.end();
     * ```
     *
     * Example: Using `Hmac` and piped streams:
     *
     * ```js
     * import { createReadStream } from 'fs';
     * import { stdout } from 'process';
     * const {
     *   createHmac
     * } = await import('crypto');
     *
     * const hmac = createHmac('sha256', 'a secret');
     *
     * const input = createReadStream('test.js');
     * input.pipe(hmac).pipe(stdout);
     * ```
     *
     * Example: Using the `hmac.update()` and `hmac.digest()` methods:
     *
     * ```js
     * const {
     *   createHmac
     * } = await import('crypto');
     *
     * const hmac = createHmac('sha256', 'a secret');
     *
     * hmac.update('some data to hash');
     * console.log(hmac.digest('hex'));
     * // Prints:
     * //   7fd04df92f636fd450bc841c9418e5825c17f33ad9c87c518115a45971f7f77e
     * ```
     * @since v0.1.94
     */
    class Hmac extends stream.Transform {
        private constructor();
        /**
         * Updates the `Hmac` content with the given `data`, the encoding of which
         * is given in `inputEncoding`.
         * If `encoding` is not provided, and the `data` is a string, an
         * encoding of `'utf8'` is enforced. If `data` is a `Buffer`, `TypedArray`, or`DataView`, then `inputEncoding` is ignored.
         *
         * This can be called many times with new data as it is streamed.
         * @since v0.1.94
         * @param inputEncoding The `encoding` of the `data` string.
         */
        update(data: BinaryLike): Hmac;
        update(data: string, inputEncoding: Encoding): Hmac;
        /**
         * Calculates the HMAC digest of all of the data passed using `hmac.update()`.
         * If `encoding` is
         * provided a string is returned; otherwise a `Buffer` is returned;
         *
         * The `Hmac` object can not be used again after `hmac.digest()` has been
         * called. Multiple calls to `hmac.digest()` will result in an error being thrown.
         * @since v0.1.94
         * @param encoding The `encoding` of the return value.
         */
        digest(): Buffer;
        digest(encoding: BinaryToTextEncoding): string;
    }
    type KeyObjectType = 'secret' | 'public' | 'private';
    interface KeyExportOptions<T extends KeyFormat> {
        type: 'pkcs1' | 'spki' | 'pkcs8' | 'sec1';
        format: T;
        cipher?: string | undefined;
        passphrase?: string | Buffer | undefined;
    }
    interface JwkKeyExportOptions {
        format: 'jwk';
    }
    interface JsonWebKey {
        crv?: string | undefined;
        d?: string | undefined;
        dp?: string | undefined;
        dq?: string | undefined;
        e?: string | undefined;
        k?: string | undefined;
        kty?: string | undefined;
        n?: string | undefined;
        p?: string | undefined;
        q?: string | undefined;
        qi?: string | undefined;
        x?: string | undefined;
        y?: string | undefined;
        [key: string]: unknown;
    }
    interface AsymmetricKeyDetails {
        /**
         * Key size in bits (RSA, DSA).
         */
        modulusLength?: number | undefined;
        /**
         * Public exponent (RSA).
         */
        publicExponent?: bigint | undefined;
        /**
         * Name of the message digest (RSA-PSS).
         */
        hashAlgorithm?: string | undefined;
        /**
         * Name of the message digest used by MGF1 (RSA-PSS).
         */
        mgf1HashAlgorithm?: string | undefined;
        /**
         * Minimal salt length in bytes (RSA-PSS).
         */
        saltLength?: number | undefined;
        /**
         * Size of q in bits (DSA).
         */
        divisorLength?: number | undefined;
        /**
         * Name of the curve (EC).
         */
        namedCurve?: string | undefined;
    }
    interface JwkKeyExportOptions {
        format: 'jwk';
    }
    /**
     * Node.js uses a `KeyObject` class to represent a symmetric or asymmetric key,
     * and each kind of key exposes different functions. The {@link createSecretKey}, {@link createPublicKey} and {@link createPrivateKey} methods are used to create `KeyObject`instances. `KeyObject`
     * objects are not to be created directly using the `new`keyword.
     *
     * Most applications should consider using the new `KeyObject` API instead of
     * passing keys as strings or `Buffer`s due to improved security features.
     *
     * `KeyObject` instances can be passed to other threads via `postMessage()`.
     * The receiver obtains a cloned `KeyObject`, and the `KeyObject` does not need to
     * be listed in the `transferList` argument.
     * @since v11.6.0
     */
    class KeyObject {
        private constructor();
        /**
         * Example: Converting a `CryptoKey` instance to a `KeyObject`:
         *
         * ```js
         * const { webcrypto, KeyObject } = await import('crypto');
         * const { subtle } = webcrypto;
         *
         * const key = await subtle.generateKey({
         *   name: 'HMAC',
         *   hash: 'SHA-256',
         *   length: 256
         * }, true, ['sign', 'verify']);
         *
         * const keyObject = KeyObject.from(key);
         * console.log(keyObject.symmetricKeySize);
         * // Prints: 32 (symmetric key size in bytes)
         * ```
         * @since v15.0.0
         */
        static from(key: webcrypto.CryptoKey): KeyObject;
        /**
         * For asymmetric keys, this property represents the type of the key. Supported key
         * types are:
         *
         * * `'rsa'` (OID 1.2.840.113549.1.1.1)
         * * `'rsa-pss'` (OID 1.2.840.113549.1.1.10)
         * * `'dsa'` (OID 1.2.840.10040.4.1)
         * * `'ec'` (OID 1.2.840.10045.2.1)
         * * `'x25519'` (OID 1.3.101.110)
         * * `'x448'` (OID 1.3.101.111)
         * * `'ed25519'` (OID 1.3.101.112)
         * * `'ed448'` (OID 1.3.101.113)
         * * `'dh'` (OID 1.2.840.113549.1.3.1)
         *
         * This property is `undefined` for unrecognized `KeyObject` types and symmetric
         * keys.
         * @since v11.6.0
         */
        asymmetricKeyType?: KeyType | undefined;
        /**
         * For asymmetric keys, this property represents the size of the embedded key in
         * bytes. This property is `undefined` for symmetric keys.
         */
        asymmetricKeySize?: number | undefined;
        /**
         * This property exists only on asymmetric keys. Depending on the type of the key,
         * this object contains information about the key. None of the information obtained
         * through this property can be used to uniquely identify a key or to compromise
         * the security of the key.
         *
         * For RSA-PSS keys, if the key material contains a `RSASSA-PSS-params` sequence,
         * the `hashAlgorithm`, `mgf1HashAlgorithm`, and `saltLength` properties will be
         * set.
         *
         * Other key details might be exposed via this API using additional attributes.
         * @since v15.7.0
         */
        asymmetricKeyDetails?: AsymmetricKeyDetails | undefined;
        /**
         * For symmetric keys, the following encoding options can be used:
         *
         * For public keys, the following encoding options can be used:
         *
         * For private keys, the following encoding options can be used:
         *
         * The result type depends on the selected encoding format, when PEM the
         * result is a string, when DER it will be a buffer containing the data
         * encoded as DER, when [JWK](https://tools.ietf.org/html/rfc7517) it will be an object.
         *
         * When [JWK](https://tools.ietf.org/html/rfc7517) encoding format was selected, all other encoding options are
         * ignored.
         *
         * PKCS#1, SEC1, and PKCS#8 type keys can be encrypted by using a combination of
         * the `cipher` and `format` options. The PKCS#8 `type` can be used with any`format` to encrypt any key algorithm (RSA, EC, or DH) by specifying a`cipher`. PKCS#1 and SEC1 can only be
         * encrypted by specifying a `cipher`when the PEM `format` is used. For maximum compatibility, use PKCS#8 for
         * encrypted private keys. Since PKCS#8 defines its own
         * encryption mechanism, PEM-level encryption is not supported when encrypting
         * a PKCS#8 key. See [RFC 5208](https://www.rfc-editor.org/rfc/rfc5208.txt) for PKCS#8 encryption and [RFC 1421](https://www.rfc-editor.org/rfc/rfc1421.txt) for
         * PKCS#1 and SEC1 encryption.
         * @since v11.6.0
         */
        export(options: KeyExportOptions<'pem'>): string | Buffer;
        export(options?: KeyExportOptions<'der'>): Buffer;
        export(options?: JwkKeyExportOptions): JsonWebKey;
        /**
         * For secret keys, this property represents the size of the key in bytes. This
         * property is `undefined` for asymmetric keys.
         * @since v11.6.0
         */
        symmetricKeySize?: number | undefined;
        /**
         * Depending on the type of this `KeyObject`, this property is either`'secret'` for secret (symmetric) keys, `'public'` for public (asymmetric) keys
         * or `'private'` for private (asymmetric) keys.
         * @since v11.6.0
         */
        type: KeyObjectType;
    }
    type CipherCCMTypes = 'aes-128-ccm' | 'aes-192-ccm' | 'aes-256-ccm' | 'chacha20-poly1305';
    type CipherGCMTypes = 'aes-128-gcm' | 'aes-192-gcm' | 'aes-256-gcm';
    type BinaryLike = string | NodeJS.ArrayBufferView;
    type CipherKey = BinaryLike | KeyObject;
    interface CipherCCMOptions extends stream.TransformOptions {
        authTagLength: number;
    }
    interface CipherGCMOptions extends stream.TransformOptions {
        authTagLength?: number | undefined;
    }
    /**
     * Creates and returns a `Cipher` object that uses the given `algorithm` and`password`.
     *
     * The `options` argument controls stream behavior and is optional except when a
     * cipher in CCM or OCB mode is used (e.g. `'aes-128-ccm'`). In that case, the`authTagLength` option is required and specifies the length of the
     * authentication tag in bytes, see `CCM mode`. In GCM mode, the `authTagLength`option is not required but can be used to set the length of the authentication
     * tag that will be returned by `getAuthTag()` and defaults to 16 bytes.
     *
     * The `algorithm` is dependent on OpenSSL, examples are `'aes192'`, etc. On
     * recent OpenSSL releases, `openssl list -cipher-algorithms`(`openssl list-cipher-algorithms` for older versions of OpenSSL) will
     * display the available cipher algorithms.
     *
     * The `password` is used to derive the cipher key and initialization vector (IV).
     * The value must be either a `'latin1'` encoded string, a `Buffer`, a`TypedArray`, or a `DataView`.
     *
     * The implementation of `crypto.createCipher()` derives keys using the OpenSSL
     * function [`EVP_BytesToKey`](https://www.openssl.org/docs/man1.1.0/crypto/EVP_BytesToKey.html) with the digest algorithm set to MD5, one
     * iteration, and no salt. The lack of salt allows dictionary attacks as the same
     * password always creates the same key. The low iteration count and
     * non-cryptographically secure hash algorithm allow passwords to be tested very
     * rapidly.
     *
     * In line with OpenSSL's recommendation to use a more modern algorithm instead of [`EVP_BytesToKey`](https://www.openssl.org/docs/man1.1.0/crypto/EVP_BytesToKey.html) it is recommended that
     * developers derive a key and IV on
     * their own using {@link scrypt} and to use {@link createCipheriv} to create the `Cipher` object. Users should not use ciphers with counter mode
     * (e.g. CTR, GCM, or CCM) in `crypto.createCipher()`. A warning is emitted when
     * they are used in order to avoid the risk of IV reuse that causes
     * vulnerabilities. For the case when IV is reused in GCM, see [Nonce-Disrespecting Adversaries](https://github.com/nonce-disrespect/nonce-disrespect) for details.
     * @since v0.1.94
     * @deprecated Since v10.0.0 - Use {@link createCipheriv} instead.
     * @param options `stream.transform` options
     */
    function createCipher(algorithm: CipherCCMTypes, password: BinaryLike, options: CipherCCMOptions): CipherCCM;
    /** @deprecated since v10.0.0 use `createCipheriv()` */
    function createCipher(algorithm: CipherGCMTypes, password: BinaryLike, options?: CipherGCMOptions): CipherGCM;
    /** @deprecated since v10.0.0 use `createCipheriv()` */
    function createCipher(algorithm: string, password: BinaryLike, options?: stream.TransformOptions): Cipher;
    /**
     * Creates and returns a `Cipher` object, with the given `algorithm`, `key` and
     * initialization vector (`iv`).
     *
     * The `options` argument controls stream behavior and is optional except when a
     * cipher in CCM or OCB mode is used (e.g. `'aes-128-ccm'`). In that case, the`authTagLength` option is required and specifies the length of the
     * authentication tag in bytes, see `CCM mode`. In GCM mode, the `authTagLength`option is not required but can be used to set the length of the authentication
     * tag that will be returned by `getAuthTag()` and defaults to 16 bytes.
     *
     * The `algorithm` is dependent on OpenSSL, examples are `'aes192'`, etc. On
     * recent OpenSSL releases, `openssl list -cipher-algorithms`(`openssl list-cipher-algorithms` for older versions of OpenSSL) will
     * display the available cipher algorithms.
     *
     * The `key` is the raw key used by the `algorithm` and `iv` is an [initialization vector](https://en.wikipedia.org/wiki/Initialization_vector). Both arguments must be `'utf8'` encoded
     * strings,`Buffers`, `TypedArray`, or `DataView`s. The `key` may optionally be
     * a `KeyObject` of type `secret`. If the cipher does not need
     * an initialization vector, `iv` may be `null`.
     *
     * When passing strings for `key` or `iv`, please consider `caveats when using strings as inputs to cryptographic APIs`.
     *
     * Initialization vectors should be unpredictable and unique; ideally, they will be
     * cryptographically random. They do not have to be secret: IVs are typically just
     * added to ciphertext messages unencrypted. It may sound contradictory that
     * something has to be unpredictable and unique, but does not have to be secret;
     * remember that an attacker must not be able to predict ahead of time what a
     * given IV will be.
     * @since v0.1.94
     * @param options `stream.transform` options
     */
    function createCipheriv(algorithm: CipherCCMTypes, key: CipherKey, iv: BinaryLike | null, options: CipherCCMOptions): CipherCCM;
    function createCipheriv(algorithm: CipherGCMTypes, key: CipherKey, iv: BinaryLike | null, options?: CipherGCMOptions): CipherGCM;
    function createCipheriv(algorithm: string, key: CipherKey, iv: BinaryLike | null, options?: stream.TransformOptions): Cipher;
    /**
     * Instances of the `Cipher` class are used to encrypt data. The class can be
     * used in one of two ways:
     *
     * * As a `stream` that is both readable and writable, where plain unencrypted
     * data is written to produce encrypted data on the readable side, or
     * * Using the `cipher.update()` and `cipher.final()` methods to produce
     * the encrypted data.
     *
     * The {@link createCipher} or {@link createCipheriv} methods are
     * used to create `Cipher` instances. `Cipher` objects are not to be created
     * directly using the `new` keyword.
     *
     * Example: Using `Cipher` objects as streams:
     *
     * ```js
     * const {
     *   scrypt,
     *   randomFill,
     *   createCipheriv
     * } = await import('crypto');
     *
     * const algorithm = 'aes-192-cbc';
     * const password = 'Password used to generate key';
     *
     * // First, we'll generate the key. The key length is dependent on the algorithm.
     * // In this case for aes192, it is 24 bytes (192 bits).
     * scrypt(password, 'salt', 24, (err, key) => {
     *   if (err) throw err;
     *   // Then, we'll generate a random initialization vector
     *   randomFill(new Uint8Array(16), (err, iv) => {
     *     if (err) throw err;
     *
     *     // Once we have the key and iv, we can create and use the cipher...
     *     const cipher = createCipheriv(algorithm, key, iv);
     *
     *     let encrypted = '';
     *     cipher.setEncoding('hex');
     *
     *     cipher.on('data', (chunk) => encrypted += chunk);
     *     cipher.on('end', () => console.log(encrypted));
     *
     *     cipher.write('some clear text data');
     *     cipher.end();
     *   });
     * });
     * ```
     *
     * Example: Using `Cipher` and piped streams:
     *
     * ```js
     * import {
     *   createReadStream,
     *   createWriteStream,
     * } from 'fs';
     *
     * import {
     *   pipeline
     * } from 'stream';
     *
     * const {
     *   scrypt,
     *   randomFill,
     *   createCipheriv
     * } = await import('crypto');
     *
     * const algorithm = 'aes-192-cbc';
     * const password = 'Password used to generate key';
     *
     * // First, we'll generate the key. The key length is dependent on the algorithm.
     * // In this case for aes192, it is 24 bytes (192 bits).
     * scrypt(password, 'salt', 24, (err, key) => {
     *   if (err) throw err;
     *   // Then, we'll generate a random initialization vector
     *   randomFill(new Uint8Array(16), (err, iv) => {
     *     if (err) throw err;
     *
     *     const cipher = createCipheriv(algorithm, key, iv);
     *
     *     const input = createReadStream('test.js');
     *     const output = createWriteStream('test.enc');
     *
     *     pipeline(input, cipher, output, (err) => {
     *       if (err) throw err;
     *     });
     *   });
     * });
     * ```
     *
     * Example: Using the `cipher.update()` and `cipher.final()` methods:
     *
     * ```js
     * const {
     *   scrypt,
     *   randomFill,
     *   createCipheriv
     * } = await import('crypto');
     *
     * const algorithm = 'aes-192-cbc';
     * const password = 'Password used to generate key';
     *
     * // First, we'll generate the key. The key length is dependent on the algorithm.
     * // In this case for aes192, it is 24 bytes (192 bits).
     * scrypt(password, 'salt', 24, (err, key) => {
     *   if (err) throw err;
     *   // Then, we'll generate a random initialization vector
     *   randomFill(new Uint8Array(16), (err, iv) => {
     *     if (err) throw err;
     *
     *     const cipher = createCipheriv(algorithm, key, iv);
     *
     *     let encrypted = cipher.update('some clear text data', 'utf8', 'hex');
     *     encrypted += cipher.final('hex');
     *     console.log(encrypted);
     *   });
     * });
     * ```
     * @since v0.1.94
     */
    class Cipher extends stream.Transform {
        private constructor();
        /**
         * Updates the cipher with `data`. If the `inputEncoding` argument is given,
         * the `data`argument is a string using the specified encoding. If the `inputEncoding`argument is not given, `data` must be a `Buffer`, `TypedArray`, or`DataView`. If `data` is a `Buffer`,
         * `TypedArray`, or `DataView`, then`inputEncoding` is ignored.
         *
         * The `outputEncoding` specifies the output format of the enciphered
         * data. If the `outputEncoding`is specified, a string using the specified encoding is returned. If no`outputEncoding` is provided, a `Buffer` is returned.
         *
         * The `cipher.update()` method can be called multiple times with new data until `cipher.final()` is called. Calling `cipher.update()` after `cipher.final()` will result in an error being
         * thrown.
         * @since v0.1.94
         * @param inputEncoding The `encoding` of the data.
         * @param outputEncoding The `encoding` of the return value.
         */
        update(data: BinaryLike): Buffer;
        update(data: string, inputEncoding: Encoding): Buffer;
        update(data: NodeJS.ArrayBufferView, inputEncoding: undefined, outputEncoding: Encoding): string;
        update(data: string, inputEncoding: Encoding | undefined, outputEncoding: Encoding): string;
        /**
         * Once the `cipher.final()` method has been called, the `Cipher` object can no
         * longer be used to encrypt data. Attempts to call `cipher.final()` more than
         * once will result in an error being thrown.
         * @since v0.1.94
         * @param outputEncoding The `encoding` of the return value.
         * @return Any remaining enciphered contents. If `outputEncoding` is specified, a string is returned. If an `outputEncoding` is not provided, a {@link Buffer} is returned.
         */
        final(): Buffer;
        final(outputEncoding: BufferEncoding): string;
        /**
         * When using block encryption algorithms, the `Cipher` class will automatically
         * add padding to the input data to the appropriate block size. To disable the
         * default padding call `cipher.setAutoPadding(false)`.
         *
         * When `autoPadding` is `false`, the length of the entire input data must be a
         * multiple of the cipher's block size or `cipher.final()` will throw an error.
         * Disabling automatic padding is useful for non-standard padding, for instance
         * using `0x0` instead of PKCS padding.
         *
         * The `cipher.setAutoPadding()` method must be called before `cipher.final()`.
         * @since v0.7.1
         * @param [autoPadding=true]
         * @return for method chaining.
         */
        setAutoPadding(autoPadding?: boolean): this;
    }
    interface CipherCCM extends Cipher {
        setAAD(
            buffer: NodeJS.ArrayBufferView,
            options: {
                plaintextLength: number;
            }
        ): this;
        getAuthTag(): Buffer;
    }
    interface CipherGCM extends Cipher {
        setAAD(
            buffer: NodeJS.ArrayBufferView,
            options?: {
                plaintextLength: number;
            }
        ): this;
        getAuthTag(): Buffer;
    }
    /**
     * Creates and returns a `Decipher` object that uses the given `algorithm` and`password` (key).
     *
     * The `options` argument controls stream behavior and is optional except when a
     * cipher in CCM or OCB mode is used (e.g. `'aes-128-ccm'`). In that case, the`authTagLength` option is required and specifies the length of the
     * authentication tag in bytes, see `CCM mode`.
     *
     * The implementation of `crypto.createDecipher()` derives keys using the OpenSSL
     * function [`EVP_BytesToKey`](https://www.openssl.org/docs/man1.1.0/crypto/EVP_BytesToKey.html) with the digest algorithm set to MD5, one
     * iteration, and no salt. The lack of salt allows dictionary attacks as the same
     * password always creates the same key. The low iteration count and
     * non-cryptographically secure hash algorithm allow passwords to be tested very
     * rapidly.
     *
     * In line with OpenSSL's recommendation to use a more modern algorithm instead of [`EVP_BytesToKey`](https://www.openssl.org/docs/man1.1.0/crypto/EVP_BytesToKey.html) it is recommended that
     * developers derive a key and IV on
     * their own using {@link scrypt} and to use {@link createDecipheriv} to create the `Decipher` object.
     * @since v0.1.94
     * @deprecated Since v10.0.0 - Use {@link createDecipheriv} instead.
     * @param options `stream.transform` options
     */
    function createDecipher(algorithm: CipherCCMTypes, password: BinaryLike, options: CipherCCMOptions): DecipherCCM;
    /** @deprecated since v10.0.0 use `createDecipheriv()` */
    function createDecipher(algorithm: CipherGCMTypes, password: BinaryLike, options?: CipherGCMOptions): DecipherGCM;
    /** @deprecated since v10.0.0 use `createDecipheriv()` */
    function createDecipher(algorithm: string, password: BinaryLike, options?: stream.TransformOptions): Decipher;
    /**
     * Creates and returns a `Decipher` object that uses the given `algorithm`, `key`and initialization vector (`iv`).
     *
     * The `options` argument controls stream behavior and is optional except when a
     * cipher in CCM or OCB mode is used (e.g. `'aes-128-ccm'`). In that case, the`authTagLength` option is required and specifies the length of the
     * authentication tag in bytes, see `CCM mode`. In GCM mode, the `authTagLength`option is not required but can be used to restrict accepted authentication tags
     * to those with the specified length.
     *
     * The `algorithm` is dependent on OpenSSL, examples are `'aes192'`, etc. On
     * recent OpenSSL releases, `openssl list -cipher-algorithms`(`openssl list-cipher-algorithms` for older versions of OpenSSL) will
     * display the available cipher algorithms.
     *
     * The `key` is the raw key used by the `algorithm` and `iv` is an [initialization vector](https://en.wikipedia.org/wiki/Initialization_vector). Both arguments must be `'utf8'` encoded
     * strings,`Buffers`, `TypedArray`, or `DataView`s. The `key` may optionally be
     * a `KeyObject` of type `secret`. If the cipher does not need
     * an initialization vector, `iv` may be `null`.
     *
     * When passing strings for `key` or `iv`, please consider `caveats when using strings as inputs to cryptographic APIs`.
     *
     * Initialization vectors should be unpredictable and unique; ideally, they will be
     * cryptographically random. They do not have to be secret: IVs are typically just
     * added to ciphertext messages unencrypted. It may sound contradictory that
     * something has to be unpredictable and unique, but does not have to be secret;
     * remember that an attacker must not be able to predict ahead of time what a given
     * IV will be.
     * @since v0.1.94
     * @param options `stream.transform` options
     */
    function createDecipheriv(algorithm: CipherCCMTypes, key: CipherKey, iv: BinaryLike | null, options: CipherCCMOptions): DecipherCCM;
    function createDecipheriv(algorithm: CipherGCMTypes, key: CipherKey, iv: BinaryLike | null, options?: CipherGCMOptions): DecipherGCM;
    function createDecipheriv(algorithm: string, key: CipherKey, iv: BinaryLike | null, options?: stream.TransformOptions): Decipher;
    /**
     * Instances of the `Decipher` class are used to decrypt data. The class can be
     * used in one of two ways:
     *
     * * As a `stream` that is both readable and writable, where plain encrypted
     * data is written to produce unencrypted data on the readable side, or
     * * Using the `decipher.update()` and `decipher.final()` methods to
     * produce the unencrypted data.
     *
     * The {@link createDecipher} or {@link createDecipheriv} methods are
     * used to create `Decipher` instances. `Decipher` objects are not to be created
     * directly using the `new` keyword.
     *
     * Example: Using `Decipher` objects as streams:
     *
     * ```js
     * import { Buffer } from 'buffer';
     * const {
     *   scryptSync,
     *   createDecipheriv
     * } = await import('crypto');
     *
     * const algorithm = 'aes-192-cbc';
     * const password = 'Password used to generate key';
     * // Key length is dependent on the algorithm. In this case for aes192, it is
     * // 24 bytes (192 bits).
     * // Use the async `crypto.scrypt()` instead.
     * const key = scryptSync(password, 'salt', 24);
     * // The IV is usually passed along with the ciphertext.
     * const iv = Buffer.alloc(16, 0); // Initialization vector.
     *
     * const decipher = createDecipheriv(algorithm, key, iv);
     *
     * let decrypted = '';
     * decipher.on('readable', () => {
     *   while (null !== (chunk = decipher.read())) {
     *     decrypted += chunk.toString('utf8');
     *   }
     * });
     * decipher.on('end', () => {
     *   console.log(decrypted);
     *   // Prints: some clear text data
     * });
     *
     * // Encrypted with same algorithm, key and iv.
     * const encrypted =
     *   'e5f79c5915c02171eec6b212d5520d44480993d7d622a7c4c2da32f6efda0ffa';
     * decipher.write(encrypted, 'hex');
     * decipher.end();
     * ```
     *
     * Example: Using `Decipher` and piped streams:
     *
     * ```js
     * import {
     *   createReadStream,
     *   createWriteStream,
     * } from 'fs';
     * import { Buffer } from 'buffer';
     * const {
     *   scryptSync,
     *   createDecipheriv
     * } = await import('crypto');
     *
     * const algorithm = 'aes-192-cbc';
     * const password = 'Password used to generate key';
     * // Use the async `crypto.scrypt()` instead.
     * const key = scryptSync(password, 'salt', 24);
     * // The IV is usually passed along with the ciphertext.
     * const iv = Buffer.alloc(16, 0); // Initialization vector.
     *
     * const decipher = createDecipheriv(algorithm, key, iv);
     *
     * const input = createReadStream('test.enc');
     * const output = createWriteStream('test.js');
     *
     * input.pipe(decipher).pipe(output);
     * ```
     *
     * Example: Using the `decipher.update()` and `decipher.final()` methods:
     *
     * ```js
     * import { Buffer } from 'buffer';
     * const {
     *   scryptSync,
     *   createDecipheriv
     * } = await import('crypto');
     *
     * const algorithm = 'aes-192-cbc';
     * const password = 'Password used to generate key';
     * // Use the async `crypto.scrypt()` instead.
     * const key = scryptSync(password, 'salt', 24);
     * // The IV is usually passed along with the ciphertext.
     * const iv = Buffer.alloc(16, 0); // Initialization vector.
     *
     * const decipher = createDecipheriv(algorithm, key, iv);
     *
     * // Encrypted using same algorithm, key and iv.
     * const encrypted =
     *   'e5f79c5915c02171eec6b212d5520d44480993d7d622a7c4c2da32f6efda0ffa';
     * let decrypted = decipher.update(encrypted, 'hex', 'utf8');
     * decrypted += decipher.final('utf8');
     * console.log(decrypted);
     * // Prints: some clear text data
     * ```
     * @since v0.1.94
     */
    class Decipher extends stream.Transform {
        private constructor();
        /**
         * Updates the decipher with `data`. If the `inputEncoding` argument is given,
         * the `data`argument is a string using the specified encoding. If the `inputEncoding`argument is not given, `data` must be a `Buffer`. If `data` is a `Buffer` then `inputEncoding` is
         * ignored.
         *
         * The `outputEncoding` specifies the output format of the enciphered
         * data. If the `outputEncoding`is specified, a string using the specified encoding is returned. If no`outputEncoding` is provided, a `Buffer` is returned.
         *
         * The `decipher.update()` method can be called multiple times with new data until `decipher.final()` is called. Calling `decipher.update()` after `decipher.final()` will result in an error
         * being thrown.
         * @since v0.1.94
         * @param inputEncoding The `encoding` of the `data` string.
         * @param outputEncoding The `encoding` of the return value.
         */
        update(data: NodeJS.ArrayBufferView): Buffer;
        update(data: string, inputEncoding: Encoding): Buffer;
        update(data: NodeJS.ArrayBufferView, inputEncoding: undefined, outputEncoding: Encoding): string;
        update(data: string, inputEncoding: Encoding | undefined, outputEncoding: Encoding): string;
        /**
         * Once the `decipher.final()` method has been called, the `Decipher` object can
         * no longer be used to decrypt data. Attempts to call `decipher.final()` more
         * than once will result in an error being thrown.
         * @since v0.1.94
         * @param outputEncoding The `encoding` of the return value.
         * @return Any remaining deciphered contents. If `outputEncoding` is specified, a string is returned. If an `outputEncoding` is not provided, a {@link Buffer} is returned.
         */
        final(): Buffer;
        final(outputEncoding: BufferEncoding): string;
        /**
         * When data has been encrypted without standard block padding, calling`decipher.setAutoPadding(false)` will disable automatic padding to prevent `decipher.final()` from checking for and
         * removing padding.
         *
         * Turning auto padding off will only work if the input data's length is a
         * multiple of the ciphers block size.
         *
         * The `decipher.setAutoPadding()` method must be called before `decipher.final()`.
         * @since v0.7.1
         * @param [autoPadding=true]
         * @return for method chaining.
         */
        setAutoPadding(auto_padding?: boolean): this;
    }
    interface DecipherCCM extends Decipher {
        setAuthTag(buffer: NodeJS.ArrayBufferView): this;
        setAAD(
            buffer: NodeJS.ArrayBufferView,
            options: {
                plaintextLength: number;
            }
        ): this;
    }
    interface DecipherGCM extends Decipher {
        setAuthTag(buffer: NodeJS.ArrayBufferView): this;
        setAAD(
            buffer: NodeJS.ArrayBufferView,
            options?: {
                plaintextLength: number;
            }
        ): this;
    }
    interface PrivateKeyInput {
        key: string | Buffer;
        format?: KeyFormat | undefined;
        type?: 'pkcs1' | 'pkcs8' | 'sec1' | undefined;
        passphrase?: string | Buffer | undefined;
    }
    interface PublicKeyInput {
        key: string | Buffer;
        format?: KeyFormat | undefined;
        type?: 'pkcs1' | 'spki' | undefined;
    }
    /**
     * Asynchronously generates a new random secret key of the given `length`. The`type` will determine which validations will be performed on the `length`.
     *
     * ```js
     * const {
     *   generateKey
     * } = await import('crypto');
     *
     * generateKey('hmac', { length: 64 }, (err, key) => {
     *   if (err) throw err;
     *   console.log(key.export().toString('hex'));  // 46e..........620
     * });
     * ```
     * @since v15.0.0
     * @param type The intended use of the generated secret key. Currently accepted values are `'hmac'` and `'aes'`.
     */
    function generateKey(
        type: 'hmac' | 'aes',
        options: {
            length: number;
        },
        callback: (err: Error | null, key: KeyObject) => void
    ): void;
    /**
     * Synchronously generates a new random secret key of the given `length`. The`type` will determine which validations will be performed on the `length`.
     *
     * ```js
     * const {
     *   generateKeySync
     * } = await import('crypto');
     *
     * const key = generateKeySync('hmac', { length: 64 });
     * console.log(key.export().toString('hex'));  // e89..........41e
     * ```
     * @since v15.0.0
     * @param type The intended use of the generated secret key. Currently accepted values are `'hmac'` and `'aes'`.
     */
    function generateKeySync(
        type: 'hmac' | 'aes',
        options: {
            length: number;
        }
    ): KeyObject;
    interface JsonWebKeyInput {
        key: JsonWebKey;
        format: 'jwk';
    }
    /**
     * Creates and returns a new key object containing a private key. If `key` is a
     * string or `Buffer`, `format` is assumed to be `'pem'`; otherwise, `key`must be an object with the properties described above.
     *
     * If the private key is encrypted, a `passphrase` must be specified. The length
     * of the passphrase is limited to 1024 bytes.
     * @since v11.6.0
     */
    function createPrivateKey(key: PrivateKeyInput | string | Buffer | JsonWebKeyInput): KeyObject;
    /**
     * Creates and returns a new key object containing a public key. If `key` is a
     * string or `Buffer`, `format` is assumed to be `'pem'`; if `key` is a `KeyObject`with type `'private'`, the public key is derived from the given private key;
     * otherwise, `key` must be an object with the properties described above.
     *
     * If the format is `'pem'`, the `'key'` may also be an X.509 certificate.
     *
     * Because public keys can be derived from private keys, a private key may be
     * passed instead of a public key. In that case, this function behaves as if {@link createPrivateKey} had been called, except that the type of the
     * returned `KeyObject` will be `'public'` and that the private key cannot be
     * extracted from the returned `KeyObject`. Similarly, if a `KeyObject` with type`'private'` is given, a new `KeyObject` with type `'public'` will be returned
     * and it will be impossible to extract the private key from the returned object.
     * @since v11.6.0
     */
    function createPublicKey(key: PublicKeyInput | string | Buffer | KeyObject | JsonWebKeyInput): KeyObject;
    /**
     * Creates and returns a new key object containing a secret key for symmetric
     * encryption or `Hmac`.
     * @since v11.6.0
     * @param encoding The string encoding when `key` is a string.
     */
    function createSecretKey(key: NodeJS.ArrayBufferView): KeyObject;
    function createSecretKey(key: string, encoding: BufferEncoding): KeyObject;
    /**
     * Creates and returns a `Sign` object that uses the given `algorithm`. Use {@link getHashes} to obtain the names of the available digest algorithms.
     * Optional `options` argument controls the `stream.Writable` behavior.
     *
     * In some cases, a `Sign` instance can be created using the name of a signature
     * algorithm, such as `'RSA-SHA256'`, instead of a digest algorithm. This will use
     * the corresponding digest algorithm. This does not work for all signature
     * algorithms, such as `'ecdsa-with-SHA256'`, so it is best to always use digest
     * algorithm names.
     * @since v0.1.92
     * @param options `stream.Writable` options
     */
    function createSign(algorithm: string, options?: stream.WritableOptions): Sign;
    type DSAEncoding = 'der' | 'ieee-p1363';
    interface SigningOptions {
        /**
         * @See crypto.constants.RSA_PKCS1_PADDING
         */
        padding?: number | undefined;
        saltLength?: number | undefined;
        dsaEncoding?: DSAEncoding | undefined;
    }
    interface SignPrivateKeyInput extends PrivateKeyInput, SigningOptions {}
    interface SignKeyObjectInput extends SigningOptions {
        key: KeyObject;
    }
    interface VerifyPublicKeyInput extends PublicKeyInput, SigningOptions {}
    interface VerifyKeyObjectInput extends SigningOptions {
        key: KeyObject;
    }
    type KeyLike = string | Buffer | KeyObject;
    /**
     * The `Sign` class is a utility for generating signatures. It can be used in one
     * of two ways:
     *
     * * As a writable `stream`, where data to be signed is written and the `sign.sign()` method is used to generate and return the signature, or
     * * Using the `sign.update()` and `sign.sign()` methods to produce the
     * signature.
     *
     * The {@link createSign} method is used to create `Sign` instances. The
     * argument is the string name of the hash function to use. `Sign` objects are not
     * to be created directly using the `new` keyword.
     *
     * Example: Using `Sign` and `Verify` objects as streams:
     *
     * ```js
     * const {
     *   generateKeyPairSync,
     *   createSign,
     *   createVerify
     * } = await import('crypto');
     *
     * const { privateKey, publicKey } = generateKeyPairSync('ec', {
     *   namedCurve: 'sect239k1'
     * });
     *
     * const sign = createSign('SHA256');
     * sign.write('some data to sign');
     * sign.end();
     * const signature = sign.sign(privateKey, 'hex');
     *
     * const verify = createVerify('SHA256');
     * verify.write('some data to sign');
     * verify.end();
     * console.log(verify.verify(publicKey, signature, 'hex'));
     * // Prints: true
     * ```
     *
     * Example: Using the `sign.update()` and `verify.update()` methods:
     *
     * ```js
     * const {
     *   generateKeyPairSync,
     *   createSign,
     *   createVerify
     * } = await import('crypto');
     *
     * const { privateKey, publicKey } = generateKeyPairSync('rsa', {
     *   modulusLength: 2048,
     * });
     *
     * const sign = createSign('SHA256');
     * sign.update('some data to sign');
     * sign.end();
     * const signature = sign.sign(privateKey);
     *
     * const verify = createVerify('SHA256');
     * verify.update('some data to sign');
     * verify.end();
     * console.log(verify.verify(publicKey, signature));
     * // Prints: true
     * ```
     * @since v0.1.92
     */
    class Sign extends stream.Writable {
        private constructor();
        /**
         * Updates the `Sign` content with the given `data`, the encoding of which
         * is given in `inputEncoding`.
         * If `encoding` is not provided, and the `data` is a string, an
         * encoding of `'utf8'` is enforced. If `data` is a `Buffer`, `TypedArray`, or`DataView`, then `inputEncoding` is ignored.
         *
         * This can be called many times with new data as it is streamed.
         * @since v0.1.92
         * @param inputEncoding The `encoding` of the `data` string.
         */
        update(data: BinaryLike): this;
        update(data: string, inputEncoding: Encoding): this;
        /**
         * Calculates the signature on all the data passed through using either `sign.update()` or `sign.write()`.
         *
         * If `privateKey` is not a `KeyObject`, this function behaves as if`privateKey` had been passed to {@link createPrivateKey}. If it is an
         * object, the following additional properties can be passed:
         *
         * If `outputEncoding` is provided a string is returned; otherwise a `Buffer` is returned.
         *
         * The `Sign` object can not be again used after `sign.sign()` method has been
         * called. Multiple calls to `sign.sign()` will result in an error being thrown.
         * @since v0.1.92
         */
        sign(privateKey: KeyLike | SignKeyObjectInput | SignPrivateKeyInput): Buffer;
        sign(privateKey: KeyLike | SignKeyObjectInput | SignPrivateKeyInput, outputFormat: BinaryToTextEncoding): string;
    }
    /**
     * Creates and returns a `Verify` object that uses the given algorithm.
     * Use {@link getHashes} to obtain an array of names of the available
     * signing algorithms. Optional `options` argument controls the`stream.Writable` behavior.
     *
     * In some cases, a `Verify` instance can be created using the name of a signature
     * algorithm, such as `'RSA-SHA256'`, instead of a digest algorithm. This will use
     * the corresponding digest algorithm. This does not work for all signature
     * algorithms, such as `'ecdsa-with-SHA256'`, so it is best to always use digest
     * algorithm names.
     * @since v0.1.92
     * @param options `stream.Writable` options
     */
    function createVerify(algorithm: string, options?: stream.WritableOptions): Verify;
    /**
     * The `Verify` class is a utility for verifying signatures. It can be used in one
     * of two ways:
     *
     * * As a writable `stream` where written data is used to validate against the
     * supplied signature, or
     * * Using the `verify.update()` and `verify.verify()` methods to verify
     * the signature.
     *
     * The {@link createVerify} method is used to create `Verify` instances.`Verify` objects are not to be created directly using the `new` keyword.
     *
     * See `Sign` for examples.
     * @since v0.1.92
     */
    class Verify extends stream.Writable {
        private constructor();
        /**
         * Updates the `Verify` content with the given `data`, the encoding of which
         * is given in `inputEncoding`.
         * If `inputEncoding` is not provided, and the `data` is a string, an
         * encoding of `'utf8'` is enforced. If `data` is a `Buffer`, `TypedArray`, or`DataView`, then `inputEncoding` is ignored.
         *
         * This can be called many times with new data as it is streamed.
         * @since v0.1.92
         * @param inputEncoding The `encoding` of the `data` string.
         */
        update(data: BinaryLike): Verify;
        update(data: string, inputEncoding: Encoding): Verify;
        /**
         * Verifies the provided data using the given `object` and `signature`.
         *
         * If `object` is not a `KeyObject`, this function behaves as if`object` had been passed to {@link createPublicKey}. If it is an
         * object, the following additional properties can be passed:
         *
         * The `signature` argument is the previously calculated signature for the data, in
         * the `signatureEncoding`.
         * If a `signatureEncoding` is specified, the `signature` is expected to be a
         * string; otherwise `signature` is expected to be a `Buffer`,`TypedArray`, or `DataView`.
         *
         * The `verify` object can not be used again after `verify.verify()` has been
         * called. Multiple calls to `verify.verify()` will result in an error being
         * thrown.
         *
         * Because public keys can be derived from private keys, a private key may
         * be passed instead of a public key.
         * @since v0.1.92
         */
        verify(object: KeyLike | VerifyKeyObjectInput | VerifyPublicKeyInput, signature: NodeJS.ArrayBufferView): boolean;
        verify(object: KeyLike | VerifyKeyObjectInput | VerifyPublicKeyInput, signature: string, signature_format?: BinaryToTextEncoding): boolean;
    }
    /**
     * Creates a `DiffieHellman` key exchange object using the supplied `prime` and an
     * optional specific `generator`.
     *
     * The `generator` argument can be a number, string, or `Buffer`. If`generator` is not specified, the value `2` is used.
     *
     * If `primeEncoding` is specified, `prime` is expected to be a string; otherwise
     * a `Buffer`, `TypedArray`, or `DataView` is expected.
     *
     * If `generatorEncoding` is specified, `generator` is expected to be a string;
     * otherwise a number, `Buffer`, `TypedArray`, or `DataView` is expected.
     * @since v0.11.12
     * @param primeEncoding The `encoding` of the `prime` string.
     * @param [generator=2]
     * @param generatorEncoding The `encoding` of the `generator` string.
     */
    function createDiffieHellman(primeLength: number, generator?: number | NodeJS.ArrayBufferView): DiffieHellman;
    function createDiffieHellman(prime: NodeJS.ArrayBufferView): DiffieHellman;
    function createDiffieHellman(prime: string, primeEncoding: BinaryToTextEncoding): DiffieHellman;
    function createDiffieHellman(prime: string, primeEncoding: BinaryToTextEncoding, generator: number | NodeJS.ArrayBufferView): DiffieHellman;
    function createDiffieHellman(prime: string, primeEncoding: BinaryToTextEncoding, generator: string, generatorEncoding: BinaryToTextEncoding): DiffieHellman;
    /**
     * The `DiffieHellman` class is a utility for creating Diffie-Hellman key
     * exchanges.
     *
     * Instances of the `DiffieHellman` class can be created using the {@link createDiffieHellman} function.
     *
     * ```js
     * import assert from 'assert';
     *
     * const {
     *   createDiffieHellman
     * } = await import('crypto');
     *
     * // Generate Alice's keys...
     * const alice = createDiffieHellman(2048);
     * const aliceKey = alice.generateKeys();
     *
     * // Generate Bob's keys...
     * const bob = createDiffieHellman(alice.getPrime(), alice.getGenerator());
     * const bobKey = bob.generateKeys();
     *
     * // Exchange and generate the secret...
     * const aliceSecret = alice.computeSecret(bobKey);
     * const bobSecret = bob.computeSecret(aliceKey);
     *
     * // OK
     * assert.strictEqual(aliceSecret.toString('hex'), bobSecret.toString('hex'));
     * ```
     * @since v0.5.0
     */
    class DiffieHellman {
        private constructor();
        /**
         * Generates private and public Diffie-Hellman key values, and returns
         * the public key in the specified `encoding`. This key should be
         * transferred to the other party.
         * If `encoding` is provided a string is returned; otherwise a `Buffer` is returned.
         * @since v0.5.0
         * @param encoding The `encoding` of the return value.
         */
        generateKeys(): Buffer;
        generateKeys(encoding: BinaryToTextEncoding): string;
        /**
         * Computes the shared secret using `otherPublicKey` as the other
         * party's public key and returns the computed shared secret. The supplied
         * key is interpreted using the specified `inputEncoding`, and secret is
         * encoded using specified `outputEncoding`.
         * If the `inputEncoding` is not
         * provided, `otherPublicKey` is expected to be a `Buffer`,`TypedArray`, or `DataView`.
         *
         * If `outputEncoding` is given a string is returned; otherwise, a `Buffer` is returned.
         * @since v0.5.0
         * @param inputEncoding The `encoding` of an `otherPublicKey` string.
         * @param outputEncoding The `encoding` of the return value.
         */
        computeSecret(otherPublicKey: NodeJS.ArrayBufferView): Buffer;
        computeSecret(otherPublicKey: string, inputEncoding: BinaryToTextEncoding): Buffer;
        computeSecret(otherPublicKey: NodeJS.ArrayBufferView, outputEncoding: BinaryToTextEncoding): string;
        computeSecret(otherPublicKey: string, inputEncoding: BinaryToTextEncoding, outputEncoding: BinaryToTextEncoding): string;
        /**
         * Returns the Diffie-Hellman prime in the specified `encoding`.
         * If `encoding` is provided a string is
         * returned; otherwise a `Buffer` is returned.
         * @since v0.5.0
         * @param encoding The `encoding` of the return value.
         */
        getPrime(): Buffer;
        getPrime(encoding: BinaryToTextEncoding): string;
        /**
         * Returns the Diffie-Hellman generator in the specified `encoding`.
         * If `encoding` is provided a string is
         * returned; otherwise a `Buffer` is returned.
         * @since v0.5.0
         * @param encoding The `encoding` of the return value.
         */
        getGenerator(): Buffer;
        getGenerator(encoding: BinaryToTextEncoding): string;
        /**
         * Returns the Diffie-Hellman public key in the specified `encoding`.
         * If `encoding` is provided a
         * string is returned; otherwise a `Buffer` is returned.
         * @since v0.5.0
         * @param encoding The `encoding` of the return value.
         */
        getPublicKey(): Buffer;
        getPublicKey(encoding: BinaryToTextEncoding): string;
        /**
         * Returns the Diffie-Hellman private key in the specified `encoding`.
         * If `encoding` is provided a
         * string is returned; otherwise a `Buffer` is returned.
         * @since v0.5.0
         * @param encoding The `encoding` of the return value.
         */
        getPrivateKey(): Buffer;
        getPrivateKey(encoding: BinaryToTextEncoding): string;
        /**
         * Sets the Diffie-Hellman public key. If the `encoding` argument is provided,`publicKey` is expected
         * to be a string. If no `encoding` is provided, `publicKey` is expected
         * to be a `Buffer`, `TypedArray`, or `DataView`.
         * @since v0.5.0
         * @param encoding The `encoding` of the `publicKey` string.
         */
        setPublicKey(publicKey: NodeJS.ArrayBufferView): void;
        setPublicKey(publicKey: string, encoding: BufferEncoding): void;
        /**
         * Sets the Diffie-Hellman private key. If the `encoding` argument is provided,`privateKey` is expected
         * to be a string. If no `encoding` is provided, `privateKey` is expected
         * to be a `Buffer`, `TypedArray`, or `DataView`.
         * @since v0.5.0
         * @param encoding The `encoding` of the `privateKey` string.
         */
        setPrivateKey(privateKey: NodeJS.ArrayBufferView): void;
        setPrivateKey(privateKey: string, encoding: BufferEncoding): void;
        /**
         * A bit field containing any warnings and/or errors resulting from a check
         * performed during initialization of the `DiffieHellman` object.
         *
         * The following values are valid for this property (as defined in `constants`module):
         *
         * * `DH_CHECK_P_NOT_SAFE_PRIME`
         * * `DH_CHECK_P_NOT_PRIME`
         * * `DH_UNABLE_TO_CHECK_GENERATOR`
         * * `DH_NOT_SUITABLE_GENERATOR`
         * @since v0.11.12
         */
        verifyError: number;
    }
    /**
     * Creates a predefined `DiffieHellmanGroup` key exchange object. The
     * supported groups are: `'modp1'`, `'modp2'`, `'modp5'` (defined in [RFC 2412](https://www.rfc-editor.org/rfc/rfc2412.txt), but see `Caveats`) and `'modp14'`, `'modp15'`,`'modp16'`, `'modp17'`,
     * `'modp18'` (defined in [RFC 3526](https://www.rfc-editor.org/rfc/rfc3526.txt)). The
     * returned object mimics the interface of objects created by {@link createDiffieHellman}, but will not allow changing
     * the keys (with `diffieHellman.setPublicKey()`, for example). The
     * advantage of using this method is that the parties do not have to
     * generate nor exchange a group modulus beforehand, saving both processor
     * and communication time.
     *
     * Example (obtaining a shared secret):
     *
     * ```js
     * const {
     *   getDiffieHellman
     * } = await import('crypto');
     * const alice = getDiffieHellman('modp14');
     * const bob = getDiffieHellman('modp14');
     *
     * alice.generateKeys();
     * bob.generateKeys();
     *
     * const aliceSecret = alice.computeSecret(bob.getPublicKey(), null, 'hex');
     * const bobSecret = bob.computeSecret(alice.getPublicKey(), null, 'hex');
     *
     * // aliceSecret and bobSecret should be the same
     * console.log(aliceSecret === bobSecret);
     * ```
     * @since v0.7.5
     */
    function getDiffieHellman(groupName: string): DiffieHellman;
    /**
     * Provides an asynchronous Password-Based Key Derivation Function 2 (PBKDF2)
     * implementation. A selected HMAC digest algorithm specified by `digest` is
     * applied to derive a key of the requested byte length (`keylen`) from the`password`, `salt` and `iterations`.
     *
     * The supplied `callback` function is called with two arguments: `err` and`derivedKey`. If an error occurs while deriving the key, `err` will be set;
     * otherwise `err` will be `null`. By default, the successfully generated`derivedKey` will be passed to the callback as a `Buffer`. An error will be
     * thrown if any of the input arguments specify invalid values or types.
     *
     * If `digest` is `null`, `'sha1'` will be used. This behavior is deprecated,
     * please specify a `digest` explicitly.
     *
     * The `iterations` argument must be a number set as high as possible. The
     * higher the number of iterations, the more secure the derived key will be,
     * but will take a longer amount of time to complete.
     *
     * The `salt` should be as unique as possible. It is recommended that a salt is
     * random and at least 16 bytes long. See [NIST SP 800-132](https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-132.pdf) for details.
     *
     * When passing strings for `password` or `salt`, please consider `caveats when using strings as inputs to cryptographic APIs`.
     *
     * ```js
     * const {
     *   pbkdf2
     * } = await import('crypto');
     *
     * pbkdf2('secret', 'salt', 100000, 64, 'sha512', (err, derivedKey) => {
     *   if (err) throw err;
     *   console.log(derivedKey.toString('hex'));  // '3745e48...08d59ae'
     * });
     * ```
     *
     * The `crypto.DEFAULT_ENCODING` property can be used to change the way the`derivedKey` is passed to the callback. This property, however, has been
     * deprecated and use should be avoided.
     *
     * ```js
     * import crypto from 'crypto';
     * crypto.DEFAULT_ENCODING = 'hex';
     * crypto.pbkdf2('secret', 'salt', 100000, 512, 'sha512', (err, derivedKey) => {
     *   if (err) throw err;
     *   console.log(derivedKey);  // '3745e48...aa39b34'
     * });
     * ```
     *
     * An array of supported digest functions can be retrieved using {@link getHashes}.
     *
     * This API uses libuv's threadpool, which can have surprising and
     * negative performance implications for some applications; see the `UV_THREADPOOL_SIZE` documentation for more information.
     * @since v0.5.5
     */
    function pbkdf2(password: BinaryLike, salt: BinaryLike, iterations: number, keylen: number, digest: string, callback: (err: Error | null, derivedKey: Buffer) => void): void;
    /**
     * Provides a synchronous Password-Based Key Derivation Function 2 (PBKDF2)
     * implementation. A selected HMAC digest algorithm specified by `digest` is
     * applied to derive a key of the requested byte length (`keylen`) from the`password`, `salt` and `iterations`.
     *
     * If an error occurs an `Error` will be thrown, otherwise the derived key will be
     * returned as a `Buffer`.
     *
     * If `digest` is `null`, `'sha1'` will be used. This behavior is deprecated,
     * please specify a `digest` explicitly.
     *
     * The `iterations` argument must be a number set as high as possible. The
     * higher the number of iterations, the more secure the derived key will be,
     * but will take a longer amount of time to complete.
     *
     * The `salt` should be as unique as possible. It is recommended that a salt is
     * random and at least 16 bytes long. See [NIST SP 800-132](https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-132.pdf) for details.
     *
     * When passing strings for `password` or `salt`, please consider `caveats when using strings as inputs to cryptographic APIs`.
     *
     * ```js
     * const {
     *   pbkdf2Sync
     * } = await import('crypto');
     *
     * const key = pbkdf2Sync('secret', 'salt', 100000, 64, 'sha512');
     * console.log(key.toString('hex'));  // '3745e48...08d59ae'
     * ```
     *
     * The `crypto.DEFAULT_ENCODING` property may be used to change the way the`derivedKey` is returned. This property, however, is deprecated and use
     * should be avoided.
     *
     * ```js
     * import crypto from 'crypto';
     * crypto.DEFAULT_ENCODING = 'hex';
     * const key = crypto.pbkdf2Sync('secret', 'salt', 100000, 512, 'sha512');
     * console.log(key);  // '3745e48...aa39b34'
     * ```
     *
     * An array of supported digest functions can be retrieved using {@link getHashes}.
     * @since v0.9.3
     */
    function pbkdf2Sync(password: BinaryLike, salt: BinaryLike, iterations: number, keylen: number, digest: string): Buffer;
    /**
     * Generates cryptographically strong pseudorandom data. The `size` argument
     * is a number indicating the number of bytes to generate.
     *
     * If a `callback` function is provided, the bytes are generated asynchronously
     * and the `callback` function is invoked with two arguments: `err` and `buf`.
     * If an error occurs, `err` will be an `Error` object; otherwise it is `null`. The`buf` argument is a `Buffer` containing the generated bytes.
     *
     * ```js
     * // Asynchronous
     * const {
     *   randomBytes
     * } = await import('crypto');
     *
     * randomBytes(256, (err, buf) => {
     *   if (err) throw err;
     *   console.log(`${buf.length} bytes of random data: ${buf.toString('hex')}`);
     * });
     * ```
     *
     * If the `callback` function is not provided, the random bytes are generated
     * synchronously and returned as a `Buffer`. An error will be thrown if
     * there is a problem generating the bytes.
     *
     * ```js
     * // Synchronous
     * const {
     *   randomBytes
     * } = await import('crypto');
     *
     * const buf = randomBytes(256);
     * console.log(
     *   `${buf.length} bytes of random data: ${buf.toString('hex')}`);
     * ```
     *
     * The `crypto.randomBytes()` method will not complete until there is
     * sufficient entropy available.
     * This should normally never take longer than a few milliseconds. The only time
     * when generating the random bytes may conceivably block for a longer period of
     * time is right after boot, when the whole system is still low on entropy.
     *
     * This API uses libuv's threadpool, which can have surprising and
     * negative performance implications for some applications; see the `UV_THREADPOOL_SIZE` documentation for more information.
     *
     * The asynchronous version of `crypto.randomBytes()` is carried out in a single
     * threadpool request. To minimize threadpool task length variation, partition
     * large `randomBytes` requests when doing so as part of fulfilling a client
     * request.
     * @since v0.5.8
     * @param size The number of bytes to generate. The `size` must not be larger than `2**31 - 1`.
     * @return if the `callback` function is not provided.
     */
    function randomBytes(size: number): Buffer;
    function randomBytes(size: number, callback: (err: Error | null, buf: Buffer) => void): void;
    function pseudoRandomBytes(size: number): Buffer;
    function pseudoRandomBytes(size: number, callback: (err: Error | null, buf: Buffer) => void): void;
    /**
     * Return a random integer `n` such that `min <= n < max`.  This
     * implementation avoids [modulo bias](https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle#Modulo_bias).
     *
     * The range (`max - min`) must be less than 248. `min` and `max` must
     * be [safe integers](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isSafeInteger).
     *
     * If the `callback` function is not provided, the random integer is
     * generated synchronously.
     *
     * ```js
     * // Asynchronous
     * const {
     *   randomInt
     * } = await import('crypto');
     *
     * randomInt(3, (err, n) => {
     *   if (err) throw err;
     *   console.log(`Random number chosen from (0, 1, 2): ${n}`);
     * });
     * ```
     *
     * ```js
     * // Synchronous
     * const {
     *   randomInt
     * } = await import('crypto');
     *
     * const n = randomInt(3);
     * console.log(`Random number chosen from (0, 1, 2): ${n}`);
     * ```
     *
     * ```js
     * // With `min` argument
     * const {
     *   randomInt
     * } = await import('crypto');
     *
     * const n = randomInt(1, 7);
     * console.log(`The dice rolled: ${n}`);
     * ```
     * @since v14.10.0, v12.19.0
     * @param [min=0] Start of random range (inclusive).
     * @param max End of random range (exclusive).
     * @param callback `function(err, n) {}`.
     */
    function randomInt(max: number): number;
    function randomInt(min: number, max: number): number;
    function randomInt(max: number, callback: (err: Error | null, value: number) => void): void;
    function randomInt(min: number, max: number, callback: (err: Error | null, value: number) => void): void;
    /**
     * Synchronous version of {@link randomFill}.
     *
     * ```js
     * import { Buffer } from 'buffer';
     * const { randomFillSync } = await import('crypto');
     *
     * const buf = Buffer.alloc(10);
     * console.log(randomFillSync(buf).toString('hex'));
     *
     * randomFillSync(buf, 5);
     * console.log(buf.toString('hex'));
     *
     * // The above is equivalent to the following:
     * randomFillSync(buf, 5, 5);
     * console.log(buf.toString('hex'));
     * ```
     *
     * Any `ArrayBuffer`, `TypedArray` or `DataView` instance may be passed as`buffer`.
     *
     * ```js
     * import { Buffer } from 'buffer';
     * const { randomFillSync } = await import('crypto');
     *
     * const a = new Uint32Array(10);
     * console.log(Buffer.from(randomFillSync(a).buffer,
     *                         a.byteOffset, a.byteLength).toString('hex'));
     *
     * const b = new DataView(new ArrayBuffer(10));
     * console.log(Buffer.from(randomFillSync(b).buffer,
     *                         b.byteOffset, b.byteLength).toString('hex'));
     *
     * const c = new ArrayBuffer(10);
     * console.log(Buffer.from(randomFillSync(c)).toString('hex'));
     * ```
     * @since v7.10.0, v6.13.0
     * @param buffer Must be supplied. The size of the provided `buffer` must not be larger than `2**31 - 1`.
     * @param [offset=0]
     * @param [size=buffer.length - offset]
     * @return The object passed as `buffer` argument.
     */
    function randomFillSync<T extends NodeJS.ArrayBufferView>(buffer: T, offset?: number, size?: number): T;
    /**
     * This function is similar to {@link randomBytes} but requires the first
     * argument to be a `Buffer` that will be filled. It also
     * requires that a callback is passed in.
     *
     * If the `callback` function is not provided, an error will be thrown.
     *
     * ```js
     * import { Buffer } from 'buffer';
     * const { randomFill } = await import('crypto');
     *
     * const buf = Buffer.alloc(10);
     * randomFill(buf, (err, buf) => {
     *   if (err) throw err;
     *   console.log(buf.toString('hex'));
     * });
     *
     * randomFill(buf, 5, (err, buf) => {
     *   if (err) throw err;
     *   console.log(buf.toString('hex'));
     * });
     *
     * // The above is equivalent to the following:
     * randomFill(buf, 5, 5, (err, buf) => {
     *   if (err) throw err;
     *   console.log(buf.toString('hex'));
     * });
     * ```
     *
     * Any `ArrayBuffer`, `TypedArray`, or `DataView` instance may be passed as`buffer`.
     *
     * While this includes instances of `Float32Array` and `Float64Array`, this
     * function should not be used to generate random floating-point numbers. The
     * result may contain `+Infinity`, `-Infinity`, and `NaN`, and even if the array
     * contains finite numbers only, they are not drawn from a uniform random
     * distribution and have no meaningful lower or upper bounds.
     *
     * ```js
     * import { Buffer } from 'buffer';
     * const { randomFill } = await import('crypto');
     *
     * const a = new Uint32Array(10);
     * randomFill(a, (err, buf) => {
     *   if (err) throw err;
     *   console.log(Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength)
     *     .toString('hex'));
     * });
     *
     * const b = new DataView(new ArrayBuffer(10));
     * randomFill(b, (err, buf) => {
     *   if (err) throw err;
     *   console.log(Buffer.from(buf.buffer, buf.byteOffset, buf.byteLength)
     *     .toString('hex'));
     * });
     *
     * const c = new ArrayBuffer(10);
     * randomFill(c, (err, buf) => {
     *   if (err) throw err;
     *   console.log(Buffer.from(buf).toString('hex'));
     * });
     * ```
     *
     * This API uses libuv's threadpool, which can have surprising and
     * negative performance implications for some applications; see the `UV_THREADPOOL_SIZE` documentation for more information.
     *
     * The asynchronous version of `crypto.randomFill()` is carried out in a single
     * threadpool request. To minimize threadpool task length variation, partition
     * large `randomFill` requests when doing so as part of fulfilling a client
     * request.
     * @since v7.10.0, v6.13.0
     * @param buffer Must be supplied. The size of the provided `buffer` must not be larger than `2**31 - 1`.
     * @param [offset=0]
     * @param [size=buffer.length - offset]
     * @param callback `function(err, buf) {}`.
     */
    function randomFill<T extends NodeJS.ArrayBufferView>(buffer: T, callback: (err: Error | null, buf: T) => void): void;
    function randomFill<T extends NodeJS.ArrayBufferView>(buffer: T, offset: number, callback: (err: Error | null, buf: T) => void): void;
    function randomFill<T extends NodeJS.ArrayBufferView>(buffer: T, offset: number, size: number, callback: (err: Error | null, buf: T) => void): void;
    interface ScryptOptions {
        cost?: number | undefined;
        blockSize?: number | undefined;
        parallelization?: number | undefined;
        N?: number | undefined;
        r?: number | undefined;
        p?: number | undefined;
        maxmem?: number | undefined;
    }
    /**
     * Provides an asynchronous [scrypt](https://en.wikipedia.org/wiki/Scrypt) implementation. Scrypt is a password-based
     * key derivation function that is designed to be expensive computationally and
     * memory-wise in order to make brute-force attacks unrewarding.
     *
     * The `salt` should be as unique as possible. It is recommended that a salt is
     * random and at least 16 bytes long. See [NIST SP 800-132](https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-132.pdf) for details.
     *
     * When passing strings for `password` or `salt`, please consider `caveats when using strings as inputs to cryptographic APIs`.
     *
     * The `callback` function is called with two arguments: `err` and `derivedKey`.`err` is an exception object when key derivation fails, otherwise `err` is`null`. `derivedKey` is passed to the
     * callback as a `Buffer`.
     *
     * An exception is thrown when any of the input arguments specify invalid values
     * or types.
     *
     * ```js
     * const {
     *   scrypt
     * } = await import('crypto');
     *
     * // Using the factory defaults.
     * scrypt('password', 'salt', 64, (err, derivedKey) => {
     *   if (err) throw err;
     *   console.log(derivedKey.toString('hex'));  // '3745e48...08d59ae'
     * });
     * // Using a custom N parameter. Must be a power of two.
     * scrypt('password', 'salt', 64, { N: 1024 }, (err, derivedKey) => {
     *   if (err) throw err;
     *   console.log(derivedKey.toString('hex'));  // '3745e48...aa39b34'
     * });
     * ```
     * @since v10.5.0
     */
    function scrypt(password: BinaryLike, salt: BinaryLike, keylen: number, callback: (err: Error | null, derivedKey: Buffer) => void): void;
    function scrypt(password: BinaryLike, salt: BinaryLike, keylen: number, options: ScryptOptions, callback: (err: Error | null, derivedKey: Buffer) => void): void;
    /**
     * Provides a synchronous [scrypt](https://en.wikipedia.org/wiki/Scrypt) implementation. Scrypt is a password-based
     * key derivation function that is designed to be expensive computationally and
     * memory-wise in order to make brute-force attacks unrewarding.
     *
     * The `salt` should be as unique as possible. It is recommended that a salt is
     * random and at least 16 bytes long. See [NIST SP 800-132](https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-132.pdf) for details.
     *
     * When passing strings for `password` or `salt`, please consider `caveats when using strings as inputs to cryptographic APIs`.
     *
     * An exception is thrown when key derivation fails, otherwise the derived key is
     * returned as a `Buffer`.
     *
     * An exception is thrown when any of the input arguments specify invalid values
     * or types.
     *
     * ```js
     * const {
     *   scryptSync
     * } = await import('crypto');
     * // Using the factory defaults.
     *
     * const key1 = scryptSync('password', 'salt', 64);
     * console.log(key1.toString('hex'));  // '3745e48...08d59ae'
     * // Using a custom N parameter. Must be a power of two.
     * const key2 = scryptSync('password', 'salt', 64, { N: 1024 });
     * console.log(key2.toString('hex'));  // '3745e48...aa39b34'
     * ```
     * @since v10.5.0
     */
    function scryptSync(password: BinaryLike, salt: BinaryLike, keylen: number, options?: ScryptOptions): Buffer;
    interface RsaPublicKey {
        key: KeyLike;
        padding?: number | undefined;
    }
    interface RsaPrivateKey {
        key: KeyLike;
        passphrase?: string | undefined;
        /**
         * @default 'sha1'
         */
        oaepHash?: string | undefined;
        oaepLabel?: NodeJS.TypedArray | undefined;
        padding?: number | undefined;
    }
    /**
     * Encrypts the content of `buffer` with `key` and returns a new `Buffer` with encrypted content. The returned data can be decrypted using
     * the corresponding private key, for example using {@link privateDecrypt}.
     *
     * If `key` is not a `KeyObject`, this function behaves as if`key` had been passed to {@link createPublicKey}. If it is an
     * object, the `padding` property can be passed. Otherwise, this function uses`RSA_PKCS1_OAEP_PADDING`.
     *
     * Because RSA public keys can be derived from private keys, a private key may
     * be passed instead of a public key.
     * @since v0.11.14
     */
    function publicEncrypt(key: RsaPublicKey | RsaPrivateKey | KeyLike, buffer: NodeJS.ArrayBufferView): Buffer;
    /**
     * Decrypts `buffer` with `key`.`buffer` was previously encrypted using
     * the corresponding private key, for example using {@link privateEncrypt}.
     *
     * If `key` is not a `KeyObject`, this function behaves as if`key` had been passed to {@link createPublicKey}. If it is an
     * object, the `padding` property can be passed. Otherwise, this function uses`RSA_PKCS1_PADDING`.
     *
     * Because RSA public keys can be derived from private keys, a private key may
     * be passed instead of a public key.
     * @since v1.1.0
     */
    function publicDecrypt(key: RsaPublicKey | RsaPrivateKey | KeyLike, buffer: NodeJS.ArrayBufferView): Buffer;
    /**
     * Decrypts `buffer` with `privateKey`. `buffer` was previously encrypted using
     * the corresponding public key, for example using {@link publicEncrypt}.
     *
     * If `privateKey` is not a `KeyObject`, this function behaves as if`privateKey` had been passed to {@link createPrivateKey}. If it is an
     * object, the `padding` property can be passed. Otherwise, this function uses`RSA_PKCS1_OAEP_PADDING`.
     * @since v0.11.14
     */
    function privateDecrypt(privateKey: RsaPrivateKey | KeyLike, buffer: NodeJS.ArrayBufferView): Buffer;
    /**
     * Encrypts `buffer` with `privateKey`. The returned data can be decrypted using
     * the corresponding public key, for example using {@link publicDecrypt}.
     *
     * If `privateKey` is not a `KeyObject`, this function behaves as if`privateKey` had been passed to {@link createPrivateKey}. If it is an
     * object, the `padding` property can be passed. Otherwise, this function uses`RSA_PKCS1_PADDING`.
     * @since v1.1.0
     */
    function privateEncrypt(privateKey: RsaPrivateKey | KeyLike, buffer: NodeJS.ArrayBufferView): Buffer;
    /**
     * ```js
     * const {
     *   getCiphers
     * } = await import('crypto');
     *
     * console.log(getCiphers()); // ['aes-128-cbc', 'aes-128-ccm', ...]
     * ```
     * @since v0.9.3
     * @return An array with the names of the supported cipher algorithms.
     */
    function getCiphers(): string[];
    /**
     * ```js
     * const {
     *   getCurves
     * } = await import('crypto');
     *
     * console.log(getCurves()); // ['Oakley-EC2N-3', 'Oakley-EC2N-4', ...]
     * ```
     * @since v2.3.0
     * @return An array with the names of the supported elliptic curves.
     */
    function getCurves(): string[];
    /**
     * @since v10.0.0
     * @return `1` if and only if a FIPS compliant crypto provider is currently in use, `0` otherwise. A future semver-major release may change the return type of this API to a {boolean}.
     */
    function getFips(): 1 | 0;
    /**
     * ```js
     * const {
     *   getHashes
     * } = await import('crypto');
     *
     * console.log(getHashes()); // ['DSA', 'DSA-SHA', 'DSA-SHA1', ...]
     * ```
     * @since v0.9.3
     * @return An array of the names of the supported hash algorithms, such as `'RSA-SHA256'`. Hash algorithms are also called "digest" algorithms.
     */
    function getHashes(): string[];
    /**
     * The `ECDH` class is a utility for creating Elliptic Curve Diffie-Hellman (ECDH)
     * key exchanges.
     *
     * Instances of the `ECDH` class can be created using the {@link createECDH} function.
     *
     * ```js
     * import assert from 'assert';
     *
     * const {
     *   createECDH
     * } = await import('crypto');
     *
     * // Generate Alice's keys...
     * const alice = createECDH('secp521r1');
     * const aliceKey = alice.generateKeys();
     *
     * // Generate Bob's keys...
     * const bob = createECDH('secp521r1');
     * const bobKey = bob.generateKeys();
     *
     * // Exchange and generate the secret...
     * const aliceSecret = alice.computeSecret(bobKey);
     * const bobSecret = bob.computeSecret(aliceKey);
     *
     * assert.strictEqual(aliceSecret.toString('hex'), bobSecret.toString('hex'));
     * // OK
     * ```
     * @since v0.11.14
     */
    class ECDH {
        private constructor();
        /**
         * Converts the EC Diffie-Hellman public key specified by `key` and `curve` to the
         * format specified by `format`. The `format` argument specifies point encoding
         * and can be `'compressed'`, `'uncompressed'` or `'hybrid'`. The supplied key is
         * interpreted using the specified `inputEncoding`, and the returned key is encoded
         * using the specified `outputEncoding`.
         *
         * Use {@link getCurves} to obtain a list of available curve names.
         * On recent OpenSSL releases, `openssl ecparam -list_curves` will also display
         * the name and description of each available elliptic curve.
         *
         * If `format` is not specified the point will be returned in `'uncompressed'`format.
         *
         * If the `inputEncoding` is not provided, `key` is expected to be a `Buffer`,`TypedArray`, or `DataView`.
         *
         * Example (uncompressing a key):
         *
         * ```js
         * const {
         *   createECDH,
         *   ECDH
         * } = await import('crypto');
         *
         * const ecdh = createECDH('secp256k1');
         * ecdh.generateKeys();
         *
         * const compressedKey = ecdh.getPublicKey('hex', 'compressed');
         *
         * const uncompressedKey = ECDH.convertKey(compressedKey,
         *                                         'secp256k1',
         *                                         'hex',
         *                                         'hex',
         *                                         'uncompressed');
         *
         * // The converted key and the uncompressed public key should be the same
         * console.log(uncompressedKey === ecdh.getPublicKey('hex'));
         * ```
         * @since v10.0.0
         * @param inputEncoding The `encoding` of the `key` string.
         * @param outputEncoding The `encoding` of the return value.
         * @param [format='uncompressed']
         */
        static convertKey(
            key: BinaryLike,
            curve: string,
            inputEncoding?: BinaryToTextEncoding,
            outputEncoding?: 'latin1' | 'hex' | 'base64' | 'base64url',
            format?: 'uncompressed' | 'compressed' | 'hybrid'
        ): Buffer | string;
        /**
         * Generates private and public EC Diffie-Hellman key values, and returns
         * the public key in the specified `format` and `encoding`. This key should be
         * transferred to the other party.
         *
         * The `format` argument specifies point encoding and can be `'compressed'` or`'uncompressed'`. If `format` is not specified, the point will be returned in`'uncompressed'` format.
         *
         * If `encoding` is provided a string is returned; otherwise a `Buffer` is returned.
         * @since v0.11.14
         * @param encoding The `encoding` of the return value.
         * @param [format='uncompressed']
         */
        generateKeys(): Buffer;
        generateKeys(encoding: BinaryToTextEncoding, format?: ECDHKeyFormat): string;
        /**
         * Computes the shared secret using `otherPublicKey` as the other
         * party's public key and returns the computed shared secret. The supplied
         * key is interpreted using specified `inputEncoding`, and the returned secret
         * is encoded using the specified `outputEncoding`.
         * If the `inputEncoding` is not
         * provided, `otherPublicKey` is expected to be a `Buffer`, `TypedArray`, or`DataView`.
         *
         * If `outputEncoding` is given a string will be returned; otherwise a `Buffer` is returned.
         *
         * `ecdh.computeSecret` will throw an`ERR_CRYPTO_ECDH_INVALID_PUBLIC_KEY` error when `otherPublicKey`lies outside of the elliptic curve. Since `otherPublicKey` is
         * usually supplied from a remote user over an insecure network,
         * be sure to handle this exception accordingly.
         * @since v0.11.14
         * @param inputEncoding The `encoding` of the `otherPublicKey` string.
         * @param outputEncoding The `encoding` of the return value.
         */
        computeSecret(otherPublicKey: NodeJS.ArrayBufferView): Buffer;
        computeSecret(otherPublicKey: string, inputEncoding: BinaryToTextEncoding): Buffer;
        computeSecret(otherPublicKey: NodeJS.ArrayBufferView, outputEncoding: BinaryToTextEncoding): string;
        computeSecret(otherPublicKey: string, inputEncoding: BinaryToTextEncoding, outputEncoding: BinaryToTextEncoding): string;
        /**
         * If `encoding` is specified, a string is returned; otherwise a `Buffer` is
         * returned.
         * @since v0.11.14
         * @param encoding The `encoding` of the return value.
         * @return The EC Diffie-Hellman in the specified `encoding`.
         */
        getPrivateKey(): Buffer;
        getPrivateKey(encoding: BinaryToTextEncoding): string;
        /**
         * The `format` argument specifies point encoding and can be `'compressed'` or`'uncompressed'`. If `format` is not specified the point will be returned in`'uncompressed'` format.
         *
         * If `encoding` is specified, a string is returned; otherwise a `Buffer` is
         * returned.
         * @since v0.11.14
         * @param encoding The `encoding` of the return value.
         * @param [format='uncompressed']
         * @return The EC Diffie-Hellman public key in the specified `encoding` and `format`.
         */
        getPublicKey(): Buffer;
        getPublicKey(encoding: BinaryToTextEncoding, format?: ECDHKeyFormat): string;
        /**
         * Sets the EC Diffie-Hellman private key.
         * If `encoding` is provided, `privateKey` is expected
         * to be a string; otherwise `privateKey` is expected to be a `Buffer`,`TypedArray`, or `DataView`.
         *
         * If `privateKey` is not valid for the curve specified when the `ECDH` object was
         * created, an error is thrown. Upon setting the private key, the associated
         * public point (key) is also generated and set in the `ECDH` object.
         * @since v0.11.14
         * @param encoding The `encoding` of the `privateKey` string.
         */
        setPrivateKey(privateKey: NodeJS.ArrayBufferView): void;
        setPrivateKey(privateKey: string, encoding: BinaryToTextEncoding): void;
    }
    /**
     * Creates an Elliptic Curve Diffie-Hellman (`ECDH`) key exchange object using a
     * predefined curve specified by the `curveName` string. Use {@link getCurves} to obtain a list of available curve names. On recent
     * OpenSSL releases, `openssl ecparam -list_curves` will also display the name
     * and description of each available elliptic curve.
     * @since v0.11.14
     */
    function createECDH(curveName: string): ECDH;
    /**
     * This function is based on a constant-time algorithm.
     * Returns true if `a` is equal to `b`, without leaking timing information that
     * would allow an attacker to guess one of the values. This is suitable for
     * comparing HMAC digests or secret values like authentication cookies or [capability urls](https://www.w3.org/TR/capability-urls/).
     *
     * `a` and `b` must both be `Buffer`s, `TypedArray`s, or `DataView`s, and they
     * must have the same byte length.
     *
     * If at least one of `a` and `b` is a `TypedArray` with more than one byte per
     * entry, such as `Uint16Array`, the result will be computed using the platform
     * byte order.
     *
     * Use of `crypto.timingSafeEqual` does not guarantee that the _surrounding_ code
     * is timing-safe. Care should be taken to ensure that the surrounding code does
     * not introduce timing vulnerabilities.
     * @since v6.6.0
     */
    function timingSafeEqual(a: NodeJS.ArrayBufferView, b: NodeJS.ArrayBufferView): boolean;
    /** @deprecated since v10.0.0 */
    const DEFAULT_ENCODING: BufferEncoding;
    type KeyType = 'rsa' | 'rsa-pss' | 'dsa' | 'ec' | 'ed25519' | 'ed448' | 'x25519' | 'x448';
    type KeyFormat = 'pem' | 'der';
    interface BasePrivateKeyEncodingOptions<T extends KeyFormat> {
        format: T;
        cipher?: string | undefined;
        passphrase?: string | undefined;
    }
    interface KeyPairKeyObjectResult {
        publicKey: KeyObject;
        privateKey: KeyObject;
    }
    interface ED25519KeyPairKeyObjectOptions {}
    interface ED448KeyPairKeyObjectOptions {}
    interface X25519KeyPairKeyObjectOptions {}
    interface X448KeyPairKeyObjectOptions {}
    interface ECKeyPairKeyObjectOptions {
        /**
         * Name of the curve to use
         */
        namedCurve: string;
    }
    interface RSAKeyPairKeyObjectOptions {
        /**
         * Key size in bits
         */
        modulusLength: number;
        /**
         * Public exponent
         * @default 0x10001
         */
        publicExponent?: number | undefined;
    }
    interface RSAPSSKeyPairKeyObjectOptions {
        /**
         * Key size in bits
         */
        modulusLength: number;
        /**
         * Public exponent
         * @default 0x10001
         */
        publicExponent?: number | undefined;
        /**
         * Name of the message digest
         */
        hashAlgorithm?: string;
        /**
         * Name of the message digest used by MGF1
         */
        mgf1HashAlgorithm?: string;
        /**
         * Minimal salt length in bytes
         */
        saltLength?: string;
    }
    interface DSAKeyPairKeyObjectOptions {
        /**
         * Key size in bits
         */
        modulusLength: number;
        /**
         * Size of q in bits
         */
        divisorLength: number;
    }
    interface RSAKeyPairOptions<PubF extends KeyFormat, PrivF extends KeyFormat> {
        /**
         * Key size in bits
         */
        modulusLength: number;
        /**
         * Public exponent
         * @default 0x10001
         */
        publicExponent?: number | undefined;
        publicKeyEncoding: {
            type: 'pkcs1' | 'spki';
            format: PubF;
        };
        privateKeyEncoding: BasePrivateKeyEncodingOptions<PrivF> & {
            type: 'pkcs1' | 'pkcs8';
        };
    }
    interface RSAPSSKeyPairOptions<PubF extends KeyFormat, PrivF extends KeyFormat> {
        /**
         * Key size in bits
         */
        modulusLength: number;
        /**
         * Public exponent
         * @default 0x10001
         */
        publicExponent?: number | undefined;
        /**
         * Name of the message digest
         */
        hashAlgorithm?: string;
        /**
         * Name of the message digest used by MGF1
         */
        mgf1HashAlgorithm?: string;
        /**
         * Minimal salt length in bytes
         */
        saltLength?: string;
        publicKeyEncoding: {
            type: 'spki';
            format: PubF;
        };
        privateKeyEncoding: BasePrivateKeyEncodingOptions<PrivF> & {
            type: 'pkcs8';
        };
    }
    interface DSAKeyPairOptions<PubF extends KeyFormat, PrivF extends KeyFormat> {
        /**
         * Key size in bits
         */
        modulusLength: number;
        /**
         * Size of q in bits
         */
        divisorLength: number;
        publicKeyEncoding: {
            type: 'spki';
            format: PubF;
        };
        privateKeyEncoding: BasePrivateKeyEncodingOptions<PrivF> & {
            type: 'pkcs8';
        };
    }
    interface ECKeyPairOptions<PubF extends KeyFormat, PrivF extends KeyFormat> {
        /**
         * Name of the curve to use.
         */
        namedCurve: string;
        publicKeyEncoding: {
            type: 'pkcs1' | 'spki';
            format: PubF;
        };
        privateKeyEncoding: BasePrivateKeyEncodingOptions<PrivF> & {
            type: 'sec1' | 'pkcs8';
        };
    }
    interface ED25519KeyPairOptions<PubF extends KeyFormat, PrivF extends KeyFormat> {
        publicKeyEncoding: {
            type: 'spki';
            format: PubF;
        };
        privateKeyEncoding: BasePrivateKeyEncodingOptions<PrivF> & {
            type: 'pkcs8';
        };
    }
    interface ED448KeyPairOptions<PubF extends KeyFormat, PrivF extends KeyFormat> {
        publicKeyEncoding: {
            type: 'spki';
            format: PubF;
        };
        privateKeyEncoding: BasePrivateKeyEncodingOptions<PrivF> & {
            type: 'pkcs8';
        };
    }
    interface X25519KeyPairOptions<PubF extends KeyFormat, PrivF extends KeyFormat> {
        publicKeyEncoding: {
            type: 'spki';
            format: PubF;
        };
        privateKeyEncoding: BasePrivateKeyEncodingOptions<PrivF> & {
            type: 'pkcs8';
        };
    }
    interface X448KeyPairOptions<PubF extends KeyFormat, PrivF extends KeyFormat> {
        publicKeyEncoding: {
            type: 'spki';
            format: PubF;
        };
        privateKeyEncoding: BasePrivateKeyEncodingOptions<PrivF> & {
            type: 'pkcs8';
        };
    }
    interface KeyPairSyncResult<T1 extends string | Buffer, T2 extends string | Buffer> {
        publicKey: T1;
        privateKey: T2;
    }
    /**
     * Generates a new asymmetric key pair of the given `type`. RSA, RSA-PSS, DSA, EC,
     * Ed25519, Ed448, X25519, X448, and DH are currently supported.
     *
     * If a `publicKeyEncoding` or `privateKeyEncoding` was specified, this function
     * behaves as if `keyObject.export()` had been called on its result. Otherwise,
     * the respective part of the key is returned as a `KeyObject`.
     *
     * When encoding public keys, it is recommended to use `'spki'`. When encoding
     * private keys, it is recommended to use `'pkcs8'` with a strong passphrase,
     * and to keep the passphrase confidential.
     *
     * ```js
     * const {
     *   generateKeyPairSync
     * } = await import('crypto');
     *
     * const {
     *   publicKey,
     *   privateKey,
     * } = generateKeyPairSync('rsa', {
     *   modulusLength: 4096,
     *   publicKeyEncoding: {
     *     type: 'spki',
     *     format: 'pem'
     *   },
     *   privateKeyEncoding: {
     *     type: 'pkcs8',
     *     format: 'pem',
     *     cipher: 'aes-256-cbc',
     *     passphrase: 'top secret'
     *   }
     * });
     * ```
     *
     * The return value `{ publicKey, privateKey }` represents the generated key pair.
     * When PEM encoding was selected, the respective key will be a string, otherwise
     * it will be a buffer containing the data encoded as DER.
     * @since v10.12.0
     * @param type Must be `'rsa'`, `'rsa-pss'`, `'dsa'`, `'ec'`, `'ed25519'`, `'ed448'`, `'x25519'`, `'x448'`, or `'dh'`.
     */
    function generateKeyPairSync(type: 'rsa', options: RSAKeyPairOptions<'pem', 'pem'>): KeyPairSyncResult<string, string>;
    function generateKeyPairSync(type: 'rsa', options: RSAKeyPairOptions<'pem', 'der'>): KeyPairSyncResult<string, Buffer>;
    function generateKeyPairSync(type: 'rsa', options: RSAKeyPairOptions<'der', 'pem'>): KeyPairSyncResult<Buffer, string>;
    function generateKeyPairSync(type: 'rsa', options: RSAKeyPairOptions<'der', 'der'>): KeyPairSyncResult<Buffer, Buffer>;
    function generateKeyPairSync(type: 'rsa', options: RSAKeyPairKeyObjectOptions): KeyPairKeyObjectResult;
    function generateKeyPairSync(type: 'rsa-pss', options: RSAPSSKeyPairOptions<'pem', 'pem'>): KeyPairSyncResult<string, string>;
    function generateKeyPairSync(type: 'rsa-pss', options: RSAPSSKeyPairOptions<'pem', 'der'>): KeyPairSyncResult<string, Buffer>;
    function generateKeyPairSync(type: 'rsa-pss', options: RSAPSSKeyPairOptions<'der', 'pem'>): KeyPairSyncResult<Buffer, string>;
    function generateKeyPairSync(type: 'rsa-pss', options: RSAPSSKeyPairOptions<'der', 'der'>): KeyPairSyncResult<Buffer, Buffer>;
    function generateKeyPairSync(type: 'rsa-pss', options: RSAPSSKeyPairKeyObjectOptions): KeyPairKeyObjectResult;
    function generateKeyPairSync(type: 'dsa', options: DSAKeyPairOptions<'pem', 'pem'>): KeyPairSyncResult<string, string>;
    function generateKeyPairSync(type: 'dsa', options: DSAKeyPairOptions<'pem', 'der'>): KeyPairSyncResult<string, Buffer>;
    function generateKeyPairSync(type: 'dsa', options: DSAKeyPairOptions<'der', 'pem'>): KeyPairSyncResult<Buffer, string>;
    function generateKeyPairSync(type: 'dsa', options: DSAKeyPairOptions<'der', 'der'>): KeyPairSyncResult<Buffer, Buffer>;
    function generateKeyPairSync(type: 'dsa', options: DSAKeyPairKeyObjectOptions): KeyPairKeyObjectResult;
    function generateKeyPairSync(type: 'ec', options: ECKeyPairOptions<'pem', 'pem'>): KeyPairSyncResult<string, string>;
    function generateKeyPairSync(type: 'ec', options: ECKeyPairOptions<'pem', 'der'>): KeyPairSyncResult<string, Buffer>;
    function generateKeyPairSync(type: 'ec', options: ECKeyPairOptions<'der', 'pem'>): KeyPairSyncResult<Buffer, string>;
    function generateKeyPairSync(type: 'ec', options: ECKeyPairOptions<'der', 'der'>): KeyPairSyncResult<Buffer, Buffer>;
    function generateKeyPairSync(type: 'ec', options: ECKeyPairKeyObjectOptions): KeyPairKeyObjectResult;
    function generateKeyPairSync(type: 'ed25519', options: ED25519KeyPairOptions<'pem', 'pem'>): KeyPairSyncResult<string, string>;
    function generateKeyPairSync(type: 'ed25519', options: ED25519KeyPairOptions<'pem', 'der'>): KeyPairSyncResult<string, Buffer>;
    function generateKeyPairSync(type: 'ed25519', options: ED25519KeyPairOptions<'der', 'pem'>): KeyPairSyncResult<Buffer, string>;
    function generateKeyPairSync(type: 'ed25519', options: ED25519KeyPairOptions<'der', 'der'>): KeyPairSyncResult<Buffer, Buffer>;
    function generateKeyPairSync(type: 'ed25519', options?: ED25519KeyPairKeyObjectOptions): KeyPairKeyObjectResult;
    function generateKeyPairSync(type: 'ed448', options: ED448KeyPairOptions<'pem', 'pem'>): KeyPairSyncResult<string, string>;
    function generateKeyPairSync(type: 'ed448', options: ED448KeyPairOptions<'pem', 'der'>): KeyPairSyncResult<string, Buffer>;
    function generateKeyPairSync(type: 'ed448', options: ED448KeyPairOptions<'der', 'pem'>): KeyPairSyncResult<Buffer, string>;
    function generateKeyPairSync(type: 'ed448', options: ED448KeyPairOptions<'der', 'der'>): KeyPairSyncResult<Buffer, Buffer>;
    function generateKeyPairSync(type: 'ed448', options?: ED448KeyPairKeyObjectOptions): KeyPairKeyObjectResult;
    function generateKeyPairSync(type: 'x25519', options: X25519KeyPairOptions<'pem', 'pem'>): KeyPairSyncResult<string, string>;
    function generateKeyPairSync(type: 'x25519', options: X25519KeyPairOptions<'pem', 'der'>): KeyPairSyncResult<string, Buffer>;
    function generateKeyPairSync(type: 'x25519', options: X25519KeyPairOptions<'der', 'pem'>): KeyPairSyncResult<Buffer, string>;
    function generateKeyPairSync(type: 'x25519', options: X25519KeyPairOptions<'der', 'der'>): KeyPairSyncResult<Buffer, Buffer>;
    function generateKeyPairSync(type: 'x25519', options?: X25519KeyPairKeyObjectOptions): KeyPairKeyObjectResult;
    function generateKeyPairSync(type: 'x448', options: X448KeyPairOptions<'pem', 'pem'>): KeyPairSyncResult<string, string>;
    function generateKeyPairSync(type: 'x448', options: X448KeyPairOptions<'pem', 'der'>): KeyPairSyncResult<string, Buffer>;
    function generateKeyPairSync(type: 'x448', options: X448KeyPairOptions<'der', 'pem'>): KeyPairSyncResult<Buffer, string>;
    function generateKeyPairSync(type: 'x448', options: X448KeyPairOptions<'der', 'der'>): KeyPairSyncResult<Buffer, Buffer>;
    function generateKeyPairSync(type: 'x448', options?: X448KeyPairKeyObjectOptions): KeyPairKeyObjectResult;
    /**
     * Generates a new asymmetric key pair of the given `type`. RSA, RSA-PSS, DSA, EC,
     * Ed25519, Ed448, X25519, X448, and DH are currently supported.
     *
     * If a `publicKeyEncoding` or `privateKeyEncoding` was specified, this function
     * behaves as if `keyObject.export()` had been called on its result. Otherwise,
     * the respective part of the key is returned as a `KeyObject`.
     *
     * It is recommended to encode public keys as `'spki'` and private keys as`'pkcs8'` with encryption for long-term storage:
     *
     * ```js
     * const {
     *   generateKeyPair
     * } = await import('crypto');
     *
     * generateKeyPair('rsa', {
     *   modulusLength: 4096,
     *   publicKeyEncoding: {
     *     type: 'spki',
     *     format: 'pem'
     *   },
     *   privateKeyEncoding: {
     *     type: 'pkcs8',
     *     format: 'pem',
     *     cipher: 'aes-256-cbc',
     *     passphrase: 'top secret'
     *   }
     * }, (err, publicKey, privateKey) => {
     *   // Handle errors and use the generated key pair.
     * });
     * ```
     *
     * On completion, `callback` will be called with `err` set to `undefined` and`publicKey` / `privateKey` representing the generated key pair.
     *
     * If this method is invoked as its `util.promisify()` ed version, it returns
     * a `Promise` for an `Object` with `publicKey` and `privateKey` properties.
     * @since v10.12.0
     * @param type Must be `'rsa'`, `'rsa-pss'`, `'dsa'`, `'ec'`, `'ed25519'`, `'ed448'`, `'x25519'`, `'x448'`, or `'dh'`.
     */
    function generateKeyPair(type: 'rsa', options: RSAKeyPairOptions<'pem', 'pem'>, callback: (err: Error | null, publicKey: string, privateKey: string) => void): void;
    function generateKeyPair(type: 'rsa', options: RSAKeyPairOptions<'pem', 'der'>, callback: (err: Error | null, publicKey: string, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'rsa', options: RSAKeyPairOptions<'der', 'pem'>, callback: (err: Error | null, publicKey: Buffer, privateKey: string) => void): void;
    function generateKeyPair(type: 'rsa', options: RSAKeyPairOptions<'der', 'der'>, callback: (err: Error | null, publicKey: Buffer, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'rsa', options: RSAKeyPairKeyObjectOptions, callback: (err: Error | null, publicKey: KeyObject, privateKey: KeyObject) => void): void;
    function generateKeyPair(type: 'rsa-pss', options: RSAPSSKeyPairOptions<'pem', 'pem'>, callback: (err: Error | null, publicKey: string, privateKey: string) => void): void;
    function generateKeyPair(type: 'rsa-pss', options: RSAPSSKeyPairOptions<'pem', 'der'>, callback: (err: Error | null, publicKey: string, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'rsa-pss', options: RSAPSSKeyPairOptions<'der', 'pem'>, callback: (err: Error | null, publicKey: Buffer, privateKey: string) => void): void;
    function generateKeyPair(type: 'rsa-pss', options: RSAPSSKeyPairOptions<'der', 'der'>, callback: (err: Error | null, publicKey: Buffer, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'rsa-pss', options: RSAPSSKeyPairKeyObjectOptions, callback: (err: Error | null, publicKey: KeyObject, privateKey: KeyObject) => void): void;
    function generateKeyPair(type: 'dsa', options: DSAKeyPairOptions<'pem', 'pem'>, callback: (err: Error | null, publicKey: string, privateKey: string) => void): void;
    function generateKeyPair(type: 'dsa', options: DSAKeyPairOptions<'pem', 'der'>, callback: (err: Error | null, publicKey: string, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'dsa', options: DSAKeyPairOptions<'der', 'pem'>, callback: (err: Error | null, publicKey: Buffer, privateKey: string) => void): void;
    function generateKeyPair(type: 'dsa', options: DSAKeyPairOptions<'der', 'der'>, callback: (err: Error | null, publicKey: Buffer, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'dsa', options: DSAKeyPairKeyObjectOptions, callback: (err: Error | null, publicKey: KeyObject, privateKey: KeyObject) => void): void;
    function generateKeyPair(type: 'ec', options: ECKeyPairOptions<'pem', 'pem'>, callback: (err: Error | null, publicKey: string, privateKey: string) => void): void;
    function generateKeyPair(type: 'ec', options: ECKeyPairOptions<'pem', 'der'>, callback: (err: Error | null, publicKey: string, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'ec', options: ECKeyPairOptions<'der', 'pem'>, callback: (err: Error | null, publicKey: Buffer, privateKey: string) => void): void;
    function generateKeyPair(type: 'ec', options: ECKeyPairOptions<'der', 'der'>, callback: (err: Error | null, publicKey: Buffer, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'ec', options: ECKeyPairKeyObjectOptions, callback: (err: Error | null, publicKey: KeyObject, privateKey: KeyObject) => void): void;
    function generateKeyPair(type: 'ed25519', options: ED25519KeyPairOptions<'pem', 'pem'>, callback: (err: Error | null, publicKey: string, privateKey: string) => void): void;
    function generateKeyPair(type: 'ed25519', options: ED25519KeyPairOptions<'pem', 'der'>, callback: (err: Error | null, publicKey: string, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'ed25519', options: ED25519KeyPairOptions<'der', 'pem'>, callback: (err: Error | null, publicKey: Buffer, privateKey: string) => void): void;
    function generateKeyPair(type: 'ed25519', options: ED25519KeyPairOptions<'der', 'der'>, callback: (err: Error | null, publicKey: Buffer, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'ed25519', options: ED25519KeyPairKeyObjectOptions | undefined, callback: (err: Error | null, publicKey: KeyObject, privateKey: KeyObject) => void): void;
    function generateKeyPair(type: 'ed448', options: ED448KeyPairOptions<'pem', 'pem'>, callback: (err: Error | null, publicKey: string, privateKey: string) => void): void;
    function generateKeyPair(type: 'ed448', options: ED448KeyPairOptions<'pem', 'der'>, callback: (err: Error | null, publicKey: string, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'ed448', options: ED448KeyPairOptions<'der', 'pem'>, callback: (err: Error | null, publicKey: Buffer, privateKey: string) => void): void;
    function generateKeyPair(type: 'ed448', options: ED448KeyPairOptions<'der', 'der'>, callback: (err: Error | null, publicKey: Buffer, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'ed448', options: ED448KeyPairKeyObjectOptions | undefined, callback: (err: Error | null, publicKey: KeyObject, privateKey: KeyObject) => void): void;
    function generateKeyPair(type: 'x25519', options: X25519KeyPairOptions<'pem', 'pem'>, callback: (err: Error | null, publicKey: string, privateKey: string) => void): void;
    function generateKeyPair(type: 'x25519', options: X25519KeyPairOptions<'pem', 'der'>, callback: (err: Error | null, publicKey: string, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'x25519', options: X25519KeyPairOptions<'der', 'pem'>, callback: (err: Error | null, publicKey: Buffer, privateKey: string) => void): void;
    function generateKeyPair(type: 'x25519', options: X25519KeyPairOptions<'der', 'der'>, callback: (err: Error | null, publicKey: Buffer, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'x25519', options: X25519KeyPairKeyObjectOptions | undefined, callback: (err: Error | null, publicKey: KeyObject, privateKey: KeyObject) => void): void;
    function generateKeyPair(type: 'x448', options: X448KeyPairOptions<'pem', 'pem'>, callback: (err: Error | null, publicKey: string, privateKey: string) => void): void;
    function generateKeyPair(type: 'x448', options: X448KeyPairOptions<'pem', 'der'>, callback: (err: Error | null, publicKey: string, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'x448', options: X448KeyPairOptions<'der', 'pem'>, callback: (err: Error | null, publicKey: Buffer, privateKey: string) => void): void;
    function generateKeyPair(type: 'x448', options: X448KeyPairOptions<'der', 'der'>, callback: (err: Error | null, publicKey: Buffer, privateKey: Buffer) => void): void;
    function generateKeyPair(type: 'x448', options: X448KeyPairKeyObjectOptions | undefined, callback: (err: Error | null, publicKey: KeyObject, privateKey: KeyObject) => void): void;
    namespace generateKeyPair {
        function __promisify__(
            type: 'rsa',
            options: RSAKeyPairOptions<'pem', 'pem'>
        ): Promise<{
            publicKey: string;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'rsa',
            options: RSAKeyPairOptions<'pem', 'der'>
        ): Promise<{
            publicKey: string;
            privateKey: Buffer;
        }>;
        function __promisify__(
            type: 'rsa',
            options: RSAKeyPairOptions<'der', 'pem'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'rsa',
            options: RSAKeyPairOptions<'der', 'der'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: Buffer;
        }>;
        function __promisify__(type: 'rsa', options: RSAKeyPairKeyObjectOptions): Promise<KeyPairKeyObjectResult>;
        function __promisify__(
            type: 'rsa-pss',
            options: RSAPSSKeyPairOptions<'pem', 'pem'>
        ): Promise<{
            publicKey: string;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'rsa-pss',
            options: RSAPSSKeyPairOptions<'pem', 'der'>
        ): Promise<{
            publicKey: string;
            privateKey: Buffer;
        }>;
        function __promisify__(
            type: 'rsa-pss',
            options: RSAPSSKeyPairOptions<'der', 'pem'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'rsa-pss',
            options: RSAPSSKeyPairOptions<'der', 'der'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: Buffer;
        }>;
        function __promisify__(type: 'rsa-pss', options: RSAPSSKeyPairKeyObjectOptions): Promise<KeyPairKeyObjectResult>;
        function __promisify__(
            type: 'dsa',
            options: DSAKeyPairOptions<'pem', 'pem'>
        ): Promise<{
            publicKey: string;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'dsa',
            options: DSAKeyPairOptions<'pem', 'der'>
        ): Promise<{
            publicKey: string;
            privateKey: Buffer;
        }>;
        function __promisify__(
            type: 'dsa',
            options: DSAKeyPairOptions<'der', 'pem'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'dsa',
            options: DSAKeyPairOptions<'der', 'der'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: Buffer;
        }>;
        function __promisify__(type: 'dsa', options: DSAKeyPairKeyObjectOptions): Promise<KeyPairKeyObjectResult>;
        function __promisify__(
            type: 'ec',
            options: ECKeyPairOptions<'pem', 'pem'>
        ): Promise<{
            publicKey: string;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'ec',
            options: ECKeyPairOptions<'pem', 'der'>
        ): Promise<{
            publicKey: string;
            privateKey: Buffer;
        }>;
        function __promisify__(
            type: 'ec',
            options: ECKeyPairOptions<'der', 'pem'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'ec',
            options: ECKeyPairOptions<'der', 'der'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: Buffer;
        }>;
        function __promisify__(type: 'ec', options: ECKeyPairKeyObjectOptions): Promise<KeyPairKeyObjectResult>;
        function __promisify__(
            type: 'ed25519',
            options: ED25519KeyPairOptions<'pem', 'pem'>
        ): Promise<{
            publicKey: string;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'ed25519',
            options: ED25519KeyPairOptions<'pem', 'der'>
        ): Promise<{
            publicKey: string;
            privateKey: Buffer;
        }>;
        function __promisify__(
            type: 'ed25519',
            options: ED25519KeyPairOptions<'der', 'pem'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'ed25519',
            options: ED25519KeyPairOptions<'der', 'der'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: Buffer;
        }>;
        function __promisify__(type: 'ed25519', options?: ED25519KeyPairKeyObjectOptions): Promise<KeyPairKeyObjectResult>;
        function __promisify__(
            type: 'ed448',
            options: ED448KeyPairOptions<'pem', 'pem'>
        ): Promise<{
            publicKey: string;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'ed448',
            options: ED448KeyPairOptions<'pem', 'der'>
        ): Promise<{
            publicKey: string;
            privateKey: Buffer;
        }>;
        function __promisify__(
            type: 'ed448',
            options: ED448KeyPairOptions<'der', 'pem'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'ed448',
            options: ED448KeyPairOptions<'der', 'der'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: Buffer;
        }>;
        function __promisify__(type: 'ed448', options?: ED448KeyPairKeyObjectOptions): Promise<KeyPairKeyObjectResult>;
        function __promisify__(
            type: 'x25519',
            options: X25519KeyPairOptions<'pem', 'pem'>
        ): Promise<{
            publicKey: string;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'x25519',
            options: X25519KeyPairOptions<'pem', 'der'>
        ): Promise<{
            publicKey: string;
            privateKey: Buffer;
        }>;
        function __promisify__(
            type: 'x25519',
            options: X25519KeyPairOptions<'der', 'pem'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'x25519',
            options: X25519KeyPairOptions<'der', 'der'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: Buffer;
        }>;
        function __promisify__(type: 'x25519', options?: X25519KeyPairKeyObjectOptions): Promise<KeyPairKeyObjectResult>;
        function __promisify__(
            type: 'x448',
            options: X448KeyPairOptions<'pem', 'pem'>
        ): Promise<{
            publicKey: string;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'x448',
            options: X448KeyPairOptions<'pem', 'der'>
        ): Promise<{
            publicKey: string;
            privateKey: Buffer;
        }>;
        function __promisify__(
            type: 'x448',
            options: X448KeyPairOptions<'der', 'pem'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: string;
        }>;
        function __promisify__(
            type: 'x448',
            options: X448KeyPairOptions<'der', 'der'>
        ): Promise<{
            publicKey: Buffer;
            privateKey: Buffer;
        }>;
        function __promisify__(type: 'x448', options?: X448KeyPairKeyObjectOptions): Promise<KeyPairKeyObjectResult>;
    }
    /**
     * Calculates and returns the signature for `data` using the given private key and
     * algorithm. If `algorithm` is `null` or `undefined`, then the algorithm is
     * dependent upon the key type (especially Ed25519 and Ed448).
     *
     * If `key` is not a `KeyObject`, this function behaves as if `key` had been
     * passed to {@link createPrivateKey}. If it is an object, the following
     * additional properties can be passed:
     *
     * If the `callback` function is provided this function uses libuv's threadpool.
     * @since v12.0.0
     */
    function sign(algorithm: string | null | undefined, data: NodeJS.ArrayBufferView, key: KeyLike | SignKeyObjectInput | SignPrivateKeyInput): Buffer;
    function sign(
        algorithm: string | null | undefined,
        data: NodeJS.ArrayBufferView,
        key: KeyLike | SignKeyObjectInput | SignPrivateKeyInput,
        callback: (error: Error | null, data: Buffer) => void
    ): void;
    /**
     * Verifies the given signature for `data` using the given key and algorithm. If`algorithm` is `null` or `undefined`, then the algorithm is dependent upon the
     * key type (especially Ed25519 and Ed448).
     *
     * If `key` is not a `KeyObject`, this function behaves as if `key` had been
     * passed to {@link createPublicKey}. If it is an object, the following
     * additional properties can be passed:
     *
     * The `signature` argument is the previously calculated signature for the `data`.
     *
     * Because public keys can be derived from private keys, a private key or a public
     * key may be passed for `key`.
     *
     * If the `callback` function is provided this function uses libuv's threadpool.
     * @since v12.0.0
     */
    function verify(algorithm: string | null | undefined, data: NodeJS.ArrayBufferView, key: KeyLike | VerifyKeyObjectInput | VerifyPublicKeyInput, signature: NodeJS.ArrayBufferView): boolean;
    function verify(
        algorithm: string | null | undefined,
        data: NodeJS.ArrayBufferView,
        key: KeyLike | VerifyKeyObjectInput | VerifyPublicKeyInput,
        signature: NodeJS.ArrayBufferView,
        callback: (error: Error | null, result: boolean) => void
    ): void;
    /**
     * Computes the Diffie-Hellman secret based on a `privateKey` and a `publicKey`.
     * Both keys must have the same `asymmetricKeyType`, which must be one of `'dh'`(for Diffie-Hellman), `'ec'` (for ECDH), `'x448'`, or `'x25519'` (for ECDH-ES).
     * @since v13.9.0, v12.17.0
     */
    function diffieHellman(options: { privateKey: KeyObject; publicKey: KeyObject }): Buffer;
    type CipherMode = 'cbc' | 'ccm' | 'cfb' | 'ctr' | 'ecb' | 'gcm' | 'ocb' | 'ofb' | 'stream' | 'wrap' | 'xts';
    interface CipherInfoOptions {
        /**
         * A test key length.
         */
        keyLength?: number | undefined;
        /**
         * A test IV length.
         */
        ivLength?: number | undefined;
    }
    interface CipherInfo {
        /**
         * The name of the cipher.
         */
        name: string;
        /**
         * The nid of the cipher.
         */
        nid: number;
        /**
         * The block size of the cipher in bytes.
         * This property is omitted when mode is 'stream'.
         */
        blockSize?: number | undefined;
        /**
         * The expected or default initialization vector length in bytes.
         * This property is omitted if the cipher does not use an initialization vector.
         */
        ivLength?: number | undefined;
        /**
         * The expected or default key length in bytes.
         */
        keyLength: number;
        /**
         * The cipher mode.
         */
        mode: CipherMode;
    }
    /**
     * Returns information about a given cipher.
     *
     * Some ciphers accept variable length keys and initialization vectors. By default,
     * the `crypto.getCipherInfo()` method will return the default values for these
     * ciphers. To test if a given key length or iv length is acceptable for given
     * cipher, use the `keyLength` and `ivLength` options. If the given values are
     * unacceptable, `undefined` will be returned.
     * @since v15.0.0
     * @param nameOrNid The name or nid of the cipher to query.
     */
    function getCipherInfo(nameOrNid: string | number, options?: CipherInfoOptions): CipherInfo | undefined;
    /**
     * HKDF is a simple key derivation function defined in RFC 5869\. The given `ikm`,`salt` and `info` are used with the `digest` to derive a key of `keylen` bytes.
     *
     * The supplied `callback` function is called with two arguments: `err` and`derivedKey`. If an errors occurs while deriving the key, `err` will be set;
     * otherwise `err` will be `null`. The successfully generated `derivedKey` will
     * be passed to the callback as an [ArrayBuffer](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer). An error will be thrown if any
     * of the input arguments specify invalid values or types.
     *
     * ```js
     * import { Buffer } from 'buffer';
     * const {
     *   hkdf
     * } = await import('crypto');
     *
     * hkdf('sha512', 'key', 'salt', 'info', 64, (err, derivedKey) => {
     *   if (err) throw err;
     *   console.log(Buffer.from(derivedKey).toString('hex'));  // '24156e2...5391653'
     * });
     * ```
     * @since v15.0.0
     * @param digest The digest algorithm to use.
     * @param ikm The input keying material. It must be at least one byte in length.
     * @param salt The salt value. Must be provided but can be zero-length.
     * @param info Additional info value. Must be provided but can be zero-length, and cannot be more than 1024 bytes.
     * @param keylen The length of the key to generate. Must be greater than 0. The maximum allowable value is `255` times the number of bytes produced by the selected digest function (e.g. `sha512`
     * generates 64-byte hashes, making the maximum HKDF output 16320 bytes).
     */
    function hkdf(digest: string, irm: BinaryLike | KeyObject, salt: BinaryLike, info: BinaryLike, keylen: number, callback: (err: Error | null, derivedKey: ArrayBuffer) => void): void;
    /**
     * Provides a synchronous HKDF key derivation function as defined in RFC 5869\. The
     * given `ikm`, `salt` and `info` are used with the `digest` to derive a key of`keylen` bytes.
     *
     * The successfully generated `derivedKey` will be returned as an [ArrayBuffer](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer).
     *
     * An error will be thrown if any of the input arguments specify invalid values or
     * types, or if the derived key cannot be generated.
     *
     * ```js
     * import { Buffer } from 'buffer';
     * const {
     *   hkdfSync
     * } = await import('crypto');
     *
     * const derivedKey = hkdfSync('sha512', 'key', 'salt', 'info', 64);
     * console.log(Buffer.from(derivedKey).toString('hex'));  // '24156e2...5391653'
     * ```
     * @since v15.0.0
     * @param digest The digest algorithm to use.
     * @param ikm The input keying material. It must be at least one byte in length.
     * @param salt The salt value. Must be provided but can be zero-length.
     * @param info Additional info value. Must be provided but can be zero-length, and cannot be more than 1024 bytes.
     * @param keylen The length of the key to generate. Must be greater than 0. The maximum allowable value is `255` times the number of bytes produced by the selected digest function (e.g. `sha512`
     * generates 64-byte hashes, making the maximum HKDF output 16320 bytes).
     */
    function hkdfSync(digest: string, ikm: BinaryLike | KeyObject, salt: BinaryLike, info: BinaryLike, keylen: number): ArrayBuffer;
    interface SecureHeapUsage {
        /**
         * The total allocated secure heap size as specified using the `--secure-heap=n` command-line flag.
         */
        total: number;
        /**
         * The minimum allocation from the secure heap as specified using the `--secure-heap-min` command-line flag.
         */
        min: number;
        /**
         * The total number of bytes currently allocated from the secure heap.
         */
        used: number;
        /**
         * The calculated ratio of `used` to `total` allocated bytes.
         */
        utilization: number;
    }
    /**
     * @since v15.6.0
     */
    function secureHeapUsed(): SecureHeapUsage;
    interface RandomUUIDOptions {
        /**
         * By default, to improve performance,
         * Node.js will pre-emptively generate and persistently cache enough
         * random data to generate up to 128 random UUIDs. To generate a UUID
         * without using the cache, set `disableEntropyCache` to `true`.
         *
         * @default `false`
         */
        disableEntropyCache?: boolean | undefined;
    }
    /**
     * Generates a random [RFC 4122](https://www.rfc-editor.org/rfc/rfc4122.txt) version 4 UUID. The UUID is generated using a
     * cryptographic pseudorandom number generator.
     * @since v15.6.0
     */
    function randomUUID(options?: RandomUUIDOptions): string;
    interface X509CheckOptions {
        /**
         * @default 'always'
         */
        subject: 'always' | 'never';
        /**
         * @default true
         */
        wildcards: boolean;
        /**
         * @default true
         */
        partialWildcards: boolean;
        /**
         * @default false
         */
        multiLabelWildcards: boolean;
        /**
         * @default false
         */
        singleLabelSubdomains: boolean;
    }
    /**
     * Encapsulates an X509 certificate and provides read-only access to
     * its information.
     *
     * ```js
     * const { X509Certificate } = await import('crypto');
     *
     * const x509 = new X509Certificate('{... pem encoded cert ...}');
     *
     * console.log(x509.subject);
     * ```
     * @since v15.6.0
     */
    class X509Certificate {
        /**
         * Will be \`true\` if this is a Certificate Authority (ca) certificate.
         * @since v15.6.0
         */
        readonly ca: boolean;
        /**
         * The SHA-1 fingerprint of this certificate.
         * @since v15.6.0
         */
        readonly fingerprint: string;
        /**
         * The SHA-256 fingerprint of this certificate.
         * @since v15.6.0
         */
        readonly fingerprint256: string;
        /**
         * The complete subject of this certificate.
         * @since v15.6.0
         */
        readonly subject: string;
        /**
         * The subject alternative name specified for this certificate.
         * @since v15.6.0
         */
        readonly subjectAltName: string;
        /**
         * The information access content of this certificate.
         * @since v15.6.0
         */
        readonly infoAccess: string;
        /**
         * An array detailing the key usages for this certificate.
         * @since v15.6.0
         */
        readonly keyUsage: string[];
        /**
         * The issuer identification included in this certificate.
         * @since v15.6.0
         */
        readonly issuer: string;
        /**
         * The issuer certificate or `undefined` if the issuer certificate is not
         * available.
         * @since v15.9.0
         */
        readonly issuerCertificate?: X509Certificate | undefined;
        /**
         * The public key `KeyObject` for this certificate.
         * @since v15.6.0
         */
        readonly publicKey: KeyObject;
        /**
         * A `Buffer` containing the DER encoding of this certificate.
         * @since v15.6.0
         */
        readonly raw: Buffer;
        /**
         * The serial number of this certificate.
         * @since v15.6.0
         */
        readonly serialNumber: string;
        /**
         * The date/time from which this certificate is considered valid.
         * @since v15.6.0
         */
        readonly validFrom: string;
        /**
         * The date/time until which this certificate is considered valid.
         * @since v15.6.0
         */
        readonly validTo: string;
        constructor(buffer: BinaryLike);
        /**
         * Checks whether the certificate matches the given email address.
         * @since v15.6.0
         * @return Returns `email` if the certificate matches, `undefined` if it does not.
         */
        checkEmail(email: string, options?: X509CheckOptions): string | undefined;
        /**
         * Checks whether the certificate matches the given host name.
         * @since v15.6.0
         * @return Returns `name` if the certificate matches, `undefined` if it does not.
         */
        checkHost(name: string, options?: X509CheckOptions): string | undefined;
        /**
         * Checks whether the certificate matches the given IP address (IPv4 or IPv6).
         * @since v15.6.0
         * @return Returns `ip` if the certificate matches, `undefined` if it does not.
         */
        checkIP(ip: string, options?: X509CheckOptions): string | undefined;
        /**
         * Checks whether this certificate was issued by the given `otherCert`.
         * @since v15.6.0
         */
        checkIssued(otherCert: X509Certificate): boolean;
        /**
         * Checks whether the public key for this certificate is consistent with
         * the given private key.
         * @since v15.6.0
         * @param privateKey A private key.
         */
        checkPrivateKey(privateKey: KeyObject): boolean;
        /**
         * There is no standard JSON encoding for X509 certificates. The`toJSON()` method returns a string containing the PEM encoded
         * certificate.
         * @since v15.6.0
         */
        toJSON(): string;
        /**
         * Returns information about this certificate using the legacy `certificate object` encoding.
         * @since v15.6.0
         */
        toLegacyObject(): PeerCertificate;
        /**
         * Returns the PEM-encoded certificate.
         * @since v15.6.0
         */
        toString(): string;
        /**
         * Verifies that this certificate was signed by the given public key.
         * Does not perform any other validation checks on the certificate.
         * @since v15.6.0
         * @param publicKey A public key.
         */
        verify(publicKey: KeyObject): boolean;
    }
    type LargeNumberLike = NodeJS.ArrayBufferView | SharedArrayBuffer | ArrayBuffer | bigint;
    interface GeneratePrimeOptions {
        add?: LargeNumberLike | undefined;
        rem?: LargeNumberLike | undefined;
        /**
         * @default false
         */
        safe?: boolean | undefined;
        bigint?: boolean | undefined;
    }
    interface GeneratePrimeOptionsBigInt extends GeneratePrimeOptions {
        bigint: true;
    }
    interface GeneratePrimeOptionsArrayBuffer extends GeneratePrimeOptions {
        bigint?: false | undefined;
    }
    /**
     * Generates a pseudorandom prime of `size` bits.
     *
     * If `options.safe` is `true`, the prime will be a safe prime -- that is,`(prime - 1) / 2` will also be a prime.
     *
     * The `options.add` and `options.rem` parameters can be used to enforce additional
     * requirements, e.g., for Diffie-Hellman:
     *
     * * If `options.add` and `options.rem` are both set, the prime will satisfy the
     * condition that `prime % add = rem`.
     * * If only `options.add` is set and `options.safe` is not `true`, the prime will
     * satisfy the condition that `prime % add = 1`.
     * * If only `options.add` is set and `options.safe` is set to `true`, the prime
     * will instead satisfy the condition that `prime % add = 3`. This is necessary
     * because `prime % add = 1` for `options.add > 2` would contradict the condition
     * enforced by `options.safe`.
     * * `options.rem` is ignored if `options.add` is not given.
     *
     * Both `options.add` and `options.rem` must be encoded as big-endian sequences
     * if given as an `ArrayBuffer`, `SharedArrayBuffer`, `TypedArray`, `Buffer`, or`DataView`.
     *
     * By default, the prime is encoded as a big-endian sequence of octets
     * in an [ArrayBuffer](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer). If the `bigint` option is `true`, then a
     * [bigint](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt) is provided.
     * @since v15.8.0
     * @param size The size (in bits) of the prime to generate.
     */
    function generatePrime(size: number, callback: (err: Error | null, prime: ArrayBuffer) => void): void;
    function generatePrime(size: number, options: GeneratePrimeOptionsBigInt, callback: (err: Error | null, prime: bigint) => void): void;
    function generatePrime(size: number, options: GeneratePrimeOptionsArrayBuffer, callback: (err: Error | null, prime: ArrayBuffer) => void): void;
    function generatePrime(size: number, options: GeneratePrimeOptions, callback: (err: Error | null, prime: ArrayBuffer | bigint) => void): void;
    /**
     * Generates a pseudorandom prime of `size` bits.
     *
     * If `options.safe` is `true`, the prime will be a safe prime -- that is,`(prime - 1) / 2` will also be a prime.
     *
     * The `options.add` and `options.rem` parameters can be used to enforce additional
     * requirements, e.g., for Diffie-Hellman:
     *
     * * If `options.add` and `options.rem` are both set, the prime will satisfy the
     * condition that `prime % add = rem`.
     * * If only `options.add` is set and `options.safe` is not `true`, the prime will
     * satisfy the condition that `prime % add = 1`.
     * * If only `options.add` is set and `options.safe` is set to `true`, the prime
     * will instead satisfy the condition that `prime % add = 3`. This is necessary
     * because `prime % add = 1` for `options.add > 2` would contradict the condition
     * enforced by `options.safe`.
     * * `options.rem` is ignored if `options.add` is not given.
     *
     * Both `options.add` and `options.rem` must be encoded as big-endian sequences
     * if given as an `ArrayBuffer`, `SharedArrayBuffer`, `TypedArray`, `Buffer`, or`DataView`.
     *
     * By default, the prime is encoded as a big-endian sequence of octets
     * in an [ArrayBuffer](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/ArrayBuffer). If the `bigint` option is `true`, then a
     * [bigint](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt) is provided.
     * @since v15.8.0
     * @param size The size (in bits) of the prime to generate.
     */
    function generatePrimeSync(size: number): ArrayBuffer;
    function generatePrimeSync(size: number, options: GeneratePrimeOptionsBigInt): bigint;
    function generatePrimeSync(size: number, options: GeneratePrimeOptionsArrayBuffer): ArrayBuffer;
    function generatePrimeSync(size: number, options: GeneratePrimeOptions): ArrayBuffer | bigint;
    interface CheckPrimeOptions {
        /**
         * The number of Miller-Rabin probabilistic primality iterations to perform.
         * When the value is 0 (zero), a number of checks is used that yields a false positive rate of at most 2-64 for random input.
         * Care must be used when selecting a number of checks.
         * Refer to the OpenSSL documentation for the BN_is_prime_ex function nchecks options for more details.
         *
         * @default 0
         */
        checks?: number | undefined;
    }
    /**
     * Checks the primality of the `candidate`.
     * @since v15.8.0
     * @param candidate A possible prime encoded as a sequence of big endian octets of arbitrary length.
     */
    function checkPrime(value: LargeNumberLike, callback: (err: Error | null, result: boolean) => void): void;
    function checkPrime(value: LargeNumberLike, options: CheckPrimeOptions, callback: (err: Error | null, result: boolean) => void): void;
    /**
     * Checks the primality of the `candidate`.
     * @since v15.8.0
     * @param candidate A possible prime encoded as a sequence of big endian octets of arbitrary length.
     * @return `true` if the candidate is a prime with an error probability less than `0.25 ** options.checks`.
     */
    function checkPrimeSync(candidate: LargeNumberLike, options?: CheckPrimeOptions): boolean;
    namespace webcrypto {
        class CryptoKey {} // placeholder
    }
}
declare module 'node:crypto' {
    export * from 'crypto';
}