sign method
Implementation
@override
SSHRsaSignature sign(Uint8List data) {
final signer = RSASigner(SHA256Digest(), '0609608648016503040201');
signer.init(
true,
PrivateKeyParameter<RSAPrivateKey>(
RSAPrivateKey(n, d, p, q),
),
);
return SSHRsaSignature(type, signer.generateSignature(data).bytes);
}