export type SymmetricCryptoAlgorithm = "AES-CBC" | "AES-CTR" | "AES-GCM";
export type SymmetricCryptoKeyType = string | ArrayBuffer | DataView | Uint8Array | Uint16Array | Uint32Array | BigUint64Array;
/**
 * **\[LEGACY\]**
 *
 * Symmetric cryptor, a password based cryptor.
 *
 * **Edition:** webcrypto.1
 */
export declare class SymmetricCryptor {
    #private;
    get [Symbol.toStringTag](): string;
    /**
     * Initialize; Only able to create new instance from {@linkcode createSymmetricCryptor}.
     * @param {symbol} s CPCEP symbol.
     */
    private constructor();
    /**
     * Decrypt data.
     * @param {Uint8Array} data Data that need to decrypt.
     * @returns {Promise<Uint8Array>} A decrypted data.
     */
    decrypt(data: Uint8Array): Promise<Uint8Array>;
}
export interface SymmetricCryptorOptions {
    /**
     * Algorithm of the symmetric crypto.
     * @default {"AES-CBC"}
     */
    algorithm?: SymmetricCryptoAlgorithm;
}
/**
 * **\[LEGACY\]**
 *
 * Create new instance of the {@link SymmetricCryptor symmetric cryptor}.
 *
 * **Edition:** webcrypto.1
 * @param {SymmetricCryptoKeyType} key Key.
 * @param {SymmetricCryptorOptions} [options={}] Options.
 * @returns {Promise<SymmetricCryptor>}
 */
export declare function createSymmetricCryptor(key: SymmetricCryptoKeyType, options?: SymmetricCryptorOptions): Promise<SymmetricCryptor>;
/**
 * **\[LEGACY\]**
 *
 * Chain of the symmetric cryptors, multiple passwords based cryptor.
 *
 * **Edition:** webcrypto.1
 */
export declare class SymmetricCryptorChain {
    #private;
    get [Symbol.toStringTag](): string;
    /**
     * Initialize.
     * @param {readonly SymmetricCryptor[]} cryptors Chain of the symmetric cryptors.
     */
    constructor(cryptors: readonly SymmetricCryptor[]);
    /**
     * Decrypt data.
     * @param {Uint8Array} data Data that need to decrypt.
     * @returns {Promise<Uint8Array>} A decrypted data.
     */
    decrypt(data: Uint8Array): Promise<Uint8Array>;
}