hkdf static method

String hkdf({
  1. required String secret,
  2. String salt = "",
  3. String info = "",
  4. int length = 32,
  5. bool asHex = false,
})

Derives a key from a strong secret with HKDF-SHA256. hkdf(secret: sharedSecret, info: "chat")

Implementation

static String hkdf({required String secret, String salt = "", String info = "", int length = 32, bool asHex = false}) {
  final Uint8List dk = _hkdf(_sha256, _u8(secret), _u8(salt), _u8(info), length);
  return asHex ? _toHex(dk) : base64.encode(dk);
}