public void GetHashAlgorithmForSignatureFine()
{
X509AsymmetricSecurityKey k = new X509AsymmetricSecurityKey(cert);
k.GetHashAlgorithmForSignature(SignedXml.XmlDsigRSASHA1Url);
k.GetHashAlgorithmForSignature(SecurityAlgorithms.RsaSha256Signature);
}
public byte[] Sign(byte[] input)
{
X509Certificate2 x509Certificate2 = new X509Certificate2(
Convert.FromBase64String(Keys.DefaultX509Data_2048),
Keys.CertPassword,
X509KeyStorageFlags.MachineKeySet);
X509AsymmetricSecurityKey signSecurityKey = new X509AsymmetricSecurityKey(x509Certificate2);
var algorithm = SecurityAlgorithms.RsaSha256Signature;
var hash = signSecurityKey.GetHashAlgorithmForSignature(algorithm);
var formatter = signSecurityKey.GetSignatureFormatter(algorithm);
formatter.SetHashAlgorithm(hash.GetType().ToString());
var sig = formatter.CreateSignature(hash.ComputeHash(input));
return(sig);
}
public bool Verify(byte[] input, byte[] sig)
{
X509Certificate2 x509Certificate2 = new X509Certificate2(
Convert.FromBase64String(Keys.DefaultX509Data_2048),
Keys.CertPassword,
X509KeyStorageFlags.MachineKeySet);
var publicKey = x509Certificate2.Export(X509ContentType.Cert);
X509Certificate2 cert = new X509Certificate2(publicKey);
X509AsymmetricSecurityKey securityKey = new X509AsymmetricSecurityKey(cert);
var algorithm = SecurityAlgorithms.RsaSha256Signature;
var hash = securityKey.GetHashAlgorithmForSignature(algorithm);
var deformatter = securityKey.GetSignatureDeformatter(algorithm);
deformatter.SetHashAlgorithm(hash.GetType().ToString());
return(deformatter.VerifySignature(hash.ComputeHash(input), sig));
}