/// <reference types="node" />
export declare enum CryptoUtilsError {
    invalid_parameters = "invalid_parameters",
}
/**
 * Custom class for CryptoJS encryption serialization.
 */
export declare class CryptoJSAesJson {
    constructor();
    stringify(cipherParams: any): string;
    parse(jsonStr: any): {
        ciphertext: any;
        iv: string;
        salt: string;
    };
}
export declare class CryptoUtils {
    /**
     * Encrypts message with given private-pubic key pair
     *
     * @param {string} message          Message to encrypt.
     * @param {string} privateKey       Private of one side of communication, to encrypt message with.
     * @param {string} publicKey        Public key of other side of communication, used in encryption.
     * @param {string} [nonce]          Random number user in encryption process. Default ''.
     * @return {string}                 String in HEX format with encrypted message.
     */
    static encryptWithChecksum(message: string, privateKey: string, publicKey: string, nonce?: string): string;
    /**
     * Decrypts message encrypted by CryptoUtils.encryptWithChecksum or memo from DCore network objects.
     *
     * @param {string} message          Encrypted message.
     * @param {KeyPrivate} privateKey   Private key of one of communicating sides. Used to decrypt message.
     * @param {KeyPublic} publicKey     Public key of other communicating side. Used to decrypt message.
     * @param {string} nonce            Random number used in decryption. Default ''.
     * @returns {Buffer}                Buffer with decrypted text.
     */
    static decryptWithChecksum(message: string, privateKey: string, publicKey: string, nonce?: string): string;
    /**
     * Calculate RIPEMD160 hash from input.
     * Used as 'hash' parameter when submitting content.
     *
     * @param {string} fromBuffer   Input to calculate buffer from.
     * @returns {string}            RIPEMD160 hashed text.
     */
    static ripemdHash(fromBuffer: string): string;
    /**
     * Calculates MD5 hash out of input.
     *
     * @param {string} message  Input message.
     * @returns {string}        Hashed input.
     */
    static md5(message: string): string;
    /**
     * Calculates SHA512 hash of input.
     *
     * @param message       Input message.
     * @returns {string}    Hashed input.
     */
    static sha512(message: string): string;
    /**
     * Calculates SHA256 hash of input.
     *
     * @param message       Input message.
     * @returns {string}    Hashed input.
     */
    static sha256(message: string): string;
    /**
     * Encrypt message using AES256-CBC.
     * Encrypted text is in string representation of following type
     * {
     *  ct: string,
     *  iv: string,
     *  s: string
     * }
     * @param {string} message      Message to be encrypted.
     * @param {string} password     Password for encryption.
     * @returns {string}            Encrypted serialized message.
     */
    static encrypt(message: string, password: string): string;
    /**
     * Decrypt AES256-CBC encrypted message in form of string representation of following type
     * {
     *  ct: string,
     *  iv: string,
     *  s: string
     * }
     * @param {string} message      Serialized encrypted message to be decrypted.
     * @param {string} password     Password for decryption.
     * @returns {string | null}     Decrypted message.
     */
    static decrypt(message: string, password: string): string | null;
    /**
     * Encrypt message with AES256-CBC. Result is encrypted hex string.
     * This encryption is compatible with wallet-cli wallet file export key encryption format.
     *
     * @param {string | Buffer} message     Message to be encrypted.
     * @param {string} password             Password for encryption.
     * @returns {string}                    Encrypted message.
     */
    static encryptToHexString(message: string | Buffer, password: string): string;
    /**
     * Decrypts AES256-CBC encrypted hex string message. Result is decrypted string.
     * This decryption is compatible with wallet-cli wallet file export key encryption format.
     *
     * @param {string} message          Message to be decrypted.
     * @param {string} password         Password for decryption.
     * @returns {string}                Decrypted message.
     */
    static decryptHexString(message: string, password: string): string;
}