/** @arg {string|Buffer} data
    @arg {string} [digest = null] - 'hex', 'binary' or 'base64'
    @return {string|Buffer} - Buffer when digest is null, or string
*/
export declare function sha1(data: string | Buffer, encoding?: BufferEncoding): string | Buffer;
/** @arg {string|Buffer} data
    @arg {string} [digest = null] - 'hex', 'binary' or 'base64'
    @return {string|Buffer} - Buffer when digest is null, or string
*/
export declare function sha256(data: string | Buffer): Buffer;
export declare function sha256(data: string | Buffer, encoding: BufferEncoding): string;
/** @arg {string|Buffer} data
    @arg {string} [digest = null] - 'hex', 'binary' or 'base64'
    @return {string|Buffer} - Buffer when digest is null, or string
*/
export declare function sha512(data: string | Buffer): Buffer;
export declare function sha512(data: string | Buffer, encoding: BufferEncoding): string;
export declare function HmacSHA256(buffer: Buffer, secret: Buffer): Buffer;
export declare function ripemd160(data: string | Buffer): Buffer;
declare const _default: {
    sha1: typeof sha1;
    sha256: typeof sha256;
    sha512: typeof sha512;
    HmacSHA256: typeof HmacSHA256;
    ripemd160: typeof ripemd160;
};
export default _default;