public virtual void DoTest5()
{
RsaKeyParameters pubParameters = new RsaKeyParameters(false, mod3, pub3);
RsaKeyParameters privParameters = new RsaKeyParameters(true, mod3, pri3);
RsaEngine rsa = new RsaEngine();
byte[] data;
//
// ISO 9796-2 - Signing
//
Iso9796d2Signer eng = new Iso9796d2Signer(rsa, new RipeMD160Digest(), true);
eng.Init(true, privParameters);
eng.Update(msg5[0]);
eng.BlockUpdate(msg5, 1, msg5.Length - 1);
data = eng.GenerateSignature();
eng.Init(false, pubParameters);
if (!IsSameAs(sig5, 0, data))
{
Fail("failed ISO9796-2 generation Test 5");
}
eng.Update(msg5[0]);
eng.BlockUpdate(msg5, 1, msg5.Length - 1);
if (!eng.VerifySignature(data))
{
Fail("failed ISO9796-2 verify Test 5");
}
if (eng.HasFullMessage())
{
Fail("fullMessage true - Test 5");
}
if (!StartsWith(msg5, eng.GetRecoveredMessage()))
{
Fail("failed ISO9796-2 partial recovered message Test 5");
}
int length = eng.GetRecoveredMessage().Length;
if (length >= msg5.Length)
{
Fail("Test 5 recovered message too long");
}
eng = new Iso9796d2Signer(rsa, new RipeMD160Digest(), true);
eng.Init(false, pubParameters);
eng.UpdateWithRecoveredMessage(sig5);
if (!StartsWith(msg5, eng.GetRecoveredMessage()))
{
Fail("failed ISO9796-2 updateWithRecovered partial recovered message Test 5");
}
if (eng.HasFullMessage())
{
Fail("fullMessage updateWithRecovered true - Test 5");
}
for (int i = length; i != msg5.Length; i++)
{
eng.Update(msg5[i]);
}
if (!eng.VerifySignature(sig5))
{
Fail("failed ISO9796-2 verify Test 5");
}
if (eng.HasFullMessage())
{
Fail("fullMessage updateWithRecovered true - Test 5");
}
// should fail
eng.UpdateWithRecoveredMessage(sig5);
eng.BlockUpdate(msg5, 0, msg5.Length);
if (eng.VerifySignature(sig5))
{
Fail("failed ISO9796-2 updateWithRecovered verify fail Test 5");
}
}
public virtual void DoTest4()
{
RsaKeyParameters pubParameters = new RsaKeyParameters(false, mod3, pub3);
RsaKeyParameters privParameters = new RsaKeyParameters(true, mod3, pri3);
RsaEngine rsa = new RsaEngine();
byte[] data;
//
// ISO 9796-2 - Signing
//
Iso9796d2Signer eng = new Iso9796d2Signer(rsa, new RipeMD128Digest());
eng.Init(true, privParameters);
eng.Update(msg4[0]);
eng.BlockUpdate(msg4, 1, msg4.Length - 1);
data = eng.GenerateSignature();
eng.Init(false, pubParameters);
if (!IsSameAs(sig4, 0, data))
{
Fail("failed ISO9796-2 generation Test 4");
}
eng.Update(msg4[0]);
eng.BlockUpdate(msg4, 1, msg4.Length - 1);
if (!eng.VerifySignature(data))
{
Fail("failed ISO9796-2 verify Test 4");
}
if (eng.HasFullMessage())
{
eng = new Iso9796d2Signer(rsa, new RipeMD128Digest());
eng.Init(false, pubParameters);
if (!eng.VerifySignature(sig4))
{
Fail("failed ISO9796-2 verify and recover Test 4");
}
if (!IsSameAs(eng.GetRecoveredMessage(), 0, msg4))
{
Fail("failed ISO9796-2 recovered message Test 4");
}
// try update with recovered
eng.UpdateWithRecoveredMessage(sig4);
if (!IsSameAs(eng.GetRecoveredMessage(), 0, msg4))
{
Fail("failed ISO9796-2 updateWithRecovered recovered message Test 4");
}
if (!eng.VerifySignature(sig4))
{
Fail("failed ISO9796-2 updateWithRecovered verify and recover Test 4");
}
if (!IsSameAs(eng.GetRecoveredMessage(), 0, msg4))
{
Fail("failed ISO9796-2 updateWithRecovered recovered verify message Test 4");
}
// should fail
eng.UpdateWithRecoveredMessage(sig4);
eng.BlockUpdate(msg4, 0, msg4.Length);
if (eng.VerifySignature(sig4))
{
Fail("failed ISO9796-2 updateWithRecovered verify and recover Test 4");
}
}
else
{
Fail("full message flag false - Test 4");
}
}