public void ComputeAndSignHash_VerifiesComputedSignature_Pass()
{
Random rdm = new Random();
byte[] message = new byte[256];
byte[] signedMessage;
string nativeXmlString;
bool isMessageNotTamperedWith = true;
rdm.NextBytes(message);
using (var rsacsp = new RSACipher<RSACryptoServiceProvider>())
{
signedMessage = rsacsp.ComputeAndSignHash<SHA384Cng>(message);
nativeXmlString = rsacsp.ToXmlString(true);
}
using (var cipher = new RSACipher<RSACryptoServiceProvider>(nativeXmlString))
{
isMessageNotTamperedWith = cipher.ComputeAndVerifyHash<SHA384Cng>(message, signedMessage);
}
Assert.IsTrue(isMessageNotTamperedWith);
}
public void SignHash_CompareSignaturesOfRSACSPAndRSACipher_Pass()
{
int wantedKeySize = 4096;
Random rdm = new Random();
byte[] message = new byte[256];
byte[] signedMessage;
byte[] signedMessageNative;
string nativeXmlString;
rdm.NextBytes(message);
using (var rsacsp = new RSACryptoServiceProvider(wantedKeySize))
{
byte[] native = new SHA1Cng().ComputeHash(message);
signedMessageNative = rsacsp.SignHash(native, "SHA1");
nativeXmlString = rsacsp.ToXmlString(true);
}
using (var cipher = new RSACipher<RSACryptoServiceProvider>(nativeXmlString))
{
//byte[] hash = new SHA1Managed().ComputeHash(message);
signedMessage = cipher.ComputeAndSignHash<SHA1Cng>(message);
}
CollectionAssert.AreEqual(signedMessage, signedMessageNative);
}
