sign method Null safety

Uint8List sign(
  1. RsaPrivateKey key,
  2. Uint8List message
)

Implementation

static Uint8List sign(RsaPrivateKey key, Uint8List message) {
  RSASigner signer = RSASigner(SHA256Digest(), '0609608648016503040201');
  signer.init(true, PrivateKeyParameter<RSAPrivateKey>(key));
  RSASignature signature = signer.generateSignature(message);
  return signature.bytes;
}