export declare function sha512(data: Uint8Array): Uint8Array;
export declare function hmac(
  digest: (d: Uint8Array) => Uint8Array,
  blockSize: number,
  key: Uint8Array,
  message: Uint8Array,
): Uint8Array;
export declare function hmacSha512(
  key: Uint8Array,
  message: Uint8Array,
): Uint8Array;
export declare function hmacSha256(
  key: Uint8Array,
  message: Uint8Array,
): Uint8Array;
export declare function kdf(
  outputLength: number,
  ikm: Uint8Array,
  salt: Uint8Array,
  info: Uint8Array,
): Uint8Array;