verifySync method

bool verifySync(
  1. Uint8List message,
  2. Uint8List signature,
  3. 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;
}