verifySync method

bool verifySync(Uint8List message, Uint8List signature, Uint8List pubkey)

Returns true if the signature was derived by signing the message using pubkey's secret key.

Implementation

bool verifySync(
  final Uint8List message,
  final Uint8List signature,
  final Uint8List pubkey,
) {
  check(signature.length == signatureLength, 'Invalid signature length.');
  final Uint8List signedMessage = Uint8List.fromList(signature + message);
  final Uint8List buffer = Uint8List(signedMessage.length);
  final int result = TweetNaCl.crypto_sign_open(
    buffer,
    -1,
    signedMessage,
    0,
    signedMessage.length,
    pubkey,
  );
  return result == 0;
}