verify method Null safety

bool verify(
  1. CryptoRSAPublicKey key,
  2. Uint8List message,
  3. Uint8List signature
)

Implementation

static bool verify(
    CryptoRSAPublicKey key, Uint8List message, Uint8List signature) {
  RSASignature rsaSignature = RSASignature(signature);
  final verifier = RSASigner(SHA256Digest(), '0609608648016503040201');
  verifier.init(false, PublicKeyParameter<RSAPublicKey>(key));
  try {
    return verifier.verifySignature(message, rsaSignature);
  } on ArgumentError {
    return false;
  }
}