static bool RunRSAExceptionTest(Session session)
{
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(session);
rsa.ImportParameters(RsaSignatureTestData.GetKeyParameters());
byte[] r = new byte[16]; r[0] = 9; // Fake MD5 hash value
try
{
if (rsa.VerifyHash(r, MechanismType.MD5, RsaSignatureTestData.GetSignatureValue()))
{
Log.Comment("Should fail for a faked hash");
return(false);
}
}
catch (CryptographicException)
{ }
try
{
rsa.VerifyHash(RsaSignatureTestData.GetHashValue(), (MechanismType)(0xffffffff), RsaSignatureTestData.GetSignatureValue());
Log.Comment("Shoul throw");
return(false);
}
catch (CryptographicException)
{
}
try
{
rsa.VerifyHash(null, MechanismType.SHA_1, null);
Log.Comment("Shoul throw");
return(false);
}
catch (ArgumentNullException)
{
}
byte[] hash = RsaSignatureTestData.GetHashValue();
byte[] sig = RsaSignatureTestData.GetSignatureValue();
hash[0] = 9;
if (rsa.VerifyHash(hash, MechanismType.SHA_1, sig))
{
Log.Comment("VerifyHash should return false, because I changed one byte.");
return(false);
}
return(true);
}
static bool RunBasicScenario(Session session)
{
try
{
using (RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(session))
{
Log.Comment("Importing RSA public key");
rsa.ImportParameters(RsaSignatureTestData.GetKeyParameters());
Log.Comment("RSA key size: " + rsa.KeySize);
Log.Comment("Verifying SHA-1 signature");
bool verified = rsa.VerifyHash(RsaSignatureTestData.GetHashValue(), MechanismType.SHA_1, RsaSignatureTestData.GetSignatureValue());
Log.Comment("Complete verifying SHA-1 signature");
if (!verified)
{
Log.Comment("Signature failed to verify - fail.");
return(false);
}
#if DEFINED_BASE64TRANSFORM
byte[] signature = RsaSignatureTestData.GetSignatureValue();
string before = Convert.ToBase64String(signature);
byte[] after = ConvertToByteArray(before);
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, new FromBase64Transform(), CryptoStreamMode.Write);
cs.Write(after, 0, after.Length);
cs.Close();
if (!Compare(ms.ToArray(), signature))
{
Log.Comment("Base64 Transform failed.");
return(false);
}
#endif
}
}
catch (Exception e)
{
Log.Comment("Fail - got an exception");
Log.Exception("", e);
return(false);
}
return(true);
}