public void SignatureProviders_SignAndVerify()
{
// asymmetric
try
{
Random r = new Random();
AsymmetricSignatureProvider provider = new AsymmetricSignatureProvider(KeyingMaterial.DefaultAsymmetricKey_2048, SecurityAlgorithms.RsaSha256Signature);
byte[] bytesin = new byte[1024];
r.NextBytes(bytesin);
byte[] signature = provider.Sign(bytesin);
}
catch (Exception ex)
{
Assert.AreEqual(ex.GetType(), typeof(InvalidOperationException));
}
// asymmetric
try
{
Random r = new Random();
AsymmetricSignatureProvider provider = new AsymmetricSignatureProvider(KeyingMaterial.DefaultAsymmetricKey_2048, SecurityAlgorithms.RsaSha256Signature, true);
byte[] bytesin = new byte[1024];
r.NextBytes(bytesin);
byte[] signature = provider.Sign(bytesin);
Assert.IsTrue(provider.Verify(bytesin, signature));
}
catch (Exception)
{
Assert.Fail("Should have thrown, it is possible that crypto config mapped this.");
}
// unknown algorithm
try
{
Random r = new Random();
AsymmetricSignatureProvider provider = new AsymmetricSignatureProvider(KeyingMaterial.DefaultAsymmetricKey_2048, "SecurityAlgorithms.RsaSha256Signature");
Assert.Fail(string.Format("Should have thrown, it is possible that crypto config mapped this."));
}
catch (Exception ex)
{
Assert.IsFalse(ex.GetType() != typeof(InvalidOperationException), "ex.GetType() != typeof( InvalidOperationException )");
}
// symmetric
try
{
Random r = new Random();
SymmetricSignatureProvider provider = new SymmetricSignatureProvider(KeyingMaterial.DefaultSymmetricSecurityKey_256, SecurityAlgorithms.HmacSha256Signature);
byte[] bytesin = new byte[1024];
r.NextBytes(bytesin);
byte[] signature = provider.Sign(bytesin);
Assert.IsTrue(provider.Verify(bytesin, signature), string.Format("Signature did not verify"));
}
catch (Exception ex)
{
Assert.Fail(string.Format("Unexpected exception received: '{0}'", ex));
}
// symmetric different byte[] sizes
try
{
SymmetricSignatureProvider provider = new SymmetricSignatureProvider(KeyingMaterial.DefaultSymmetricSecurityKey_256, SecurityAlgorithms.HmacSha256Signature);
byte[] bytesin = new byte[1024];
byte[] signature = new byte[1024];
Assert.IsFalse(provider.Verify(bytesin, signature), string.Format("Signature did not verify"));
}
catch (Exception ex)
{
Assert.Fail(string.Format("Unexpected exception received: '{0}'", ex));
}
// unknown algorithm
try
{
Random r = new Random();
SymmetricSignatureProvider provider = new SymmetricSignatureProvider(KeyingMaterial.DefaultSymmetricSecurityKey_256, "SecurityAlgorithms.HmacSha256Signature");
Assert.Fail(string.Format("Should have thrown, it is possible that crypto config mapped this."));
}
catch (Exception ex)
{
Assert.IsFalse(ex.GetType() != typeof(InvalidOperationException), "ex.GetType() != typeof( InvalidOperationException )");
}
}
public void AsymmetricSignatureProvider_Dispose()
{
AsymmetricSignatureProvider provider = new AsymmetricSignatureProvider(KeyingMaterial.DefaultAsymmetricKey_Public_2048, SecurityAlgorithms.RsaSha256Signature);
provider.Dispose();
ExpectedException expectedException = ExpectedException.ObjectDisposedException;
try
{
provider.Sign(new byte[256]);
}
catch (Exception ex)
{
expectedException.ProcessException(ex);
}
try
{
provider.Verify(new byte[256], new byte[256]);
}
catch (Exception ex)
{
expectedException.ProcessException(ex);
}
try
{
provider.Dispose();
}
catch (Exception ex)
{
Assert.Fail(string.Format("AsymmetricSignatureProvider.Dispose called twice, caught exception: '{0}'", ex));
}
}