public void SignVerify(SignatureProviderTheoryData theoryData)
{
var context = TestUtilities.WriteHeader($"{this}.SignVerify", theoryData);
var bytes = Guid.NewGuid().ToByteArray();
try
{
var providerForSigningDirect = new AsymmetricSignatureProvider(theoryData.SigningKey, theoryData.SigningAlgorithm, true);
providerForSigningDirect.ValidKeySize();
var providerForVerifyingDirect = new AsymmetricSignatureProvider(theoryData.VerifyKey, theoryData.VerifyAlgorithm, false);
providerForVerifyingDirect.ValidKeySize();
var providerForSigningFromFactory = theoryData.SigningKey.CryptoProviderFactory.CreateForSigning(theoryData.SigningKey, theoryData.SigningAlgorithm);
var providerForVerifyingFromFactory = theoryData.VerifyKey.CryptoProviderFactory.CreateForVerifying(theoryData.VerifyKey, theoryData.VerifyAlgorithm);
byte[] signatureDirect = providerForSigningDirect.Sign(bytes);
byte[] signatureFromFactory = providerForSigningFromFactory.Sign(bytes);
if (!providerForVerifyingDirect.Verify(bytes, signatureDirect))
{
context.AddDiff($"providerForVerifyingDirect.Verify (signatureDirect) - FAILED. signingKey : signingAlgorithm '{theoryData.SigningKey}' : '{theoryData.SigningAlgorithm}. verifyKey : verifyAlgorithm '{theoryData.VerifyKey}' : '{theoryData.VerifyAlgorithm}");
}
if (!providerForVerifyingDirect.Verify(bytes, signatureFromFactory))
{
context.AddDiff($"providerForVerifyingDirect.Verify (signatureFromFactory) - FAILED. signingKey : signingAlgorithm '{theoryData.SigningKey}' : '{theoryData.SigningAlgorithm}. verifyKey : verifyAlgorithm '{theoryData.VerifyKey}' : '{theoryData.VerifyAlgorithm}");
}
if (!providerForVerifyingFromFactory.Verify(bytes, signatureDirect))
{
context.AddDiff($"providerForVerifyingFromFactory.Verify (signatureDirect) - FAILED. signingKey : signingAlgorithm '{theoryData.SigningKey}' : '{theoryData.SigningAlgorithm}. verifyKey : verifyAlgorithm '{theoryData.VerifyKey}' : '{theoryData.VerifyAlgorithm}");
}
if (!providerForVerifyingFromFactory.Verify(bytes, signatureFromFactory))
{
context.AddDiff($"providerForVerifyingFromFactory.Verify (signatureFromFactory) - FAILED. signingKey : signingAlgorithm '{theoryData.SigningKey}' : '{theoryData.SigningAlgorithm}. verifyKey : verifyAlgorithm '{theoryData.VerifyKey}' : '{theoryData.VerifyAlgorithm}");
}
theoryData.ExpectedException.ProcessNoException(context);
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
TestUtilities.AssertFailIfErrors(context);
}
public void AsymmetricSignatureProvider_Dispose()
{
AsymmetricSignatureProvider provider = new AsymmetricSignatureProvider(KeyingMaterial.AsymmetricKey_Public_2048, SecurityAlgorithms.RsaSha256Signature);
provider.Dispose();
try
{
provider.Sign(new byte[256]);
}
catch (Exception ex)
{
ExpectedException.ProcessException(ExpectedException.ObjDisp, ex);
}
try
{
provider.Verify(new byte[256], new byte[256]);
}
catch (Exception ex)
{
ExpectedException.ProcessException(ExpectedException.ObjDisp, ex);
}
try
{
provider.Dispose();
}
catch (Exception ex)
{
Assert.Fail(string.Format("AsymmetricSignatureProvider.Dispose called twice, caught exception: '{0}'", ex));
}
}
private bool Verify(byte[] payload, byte[] signature, byte[] publicKey)
{
var key = new ECDsaSecurityKey(LoadPublicKey(publicKey));
var provider = new AsymmetricSignatureProvider(key, SecurityAlgorithms.EcdsaSha256Signature);
return(provider.Verify(payload, signature));
}
private async Task ValidateSignatureAsync(AcmeRawPostRequest request, AcmeHeader header, CancellationToken cancellationToken)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (header is null)
{
throw new ArgumentNullException(nameof(header));
}
_logger.LogDebug("Attempting to validate signature ...");
var jwk = header.Jwk;
if (jwk == null)
{
try
{
var accountId = header.GetAccountId();
var account = await _accountService.LoadAcountAsync(accountId, cancellationToken);
jwk = account?.Jwk;
}
catch (InvalidOperationException)
{
throw new MalformedRequestException("KID could not be found.");
}
}
if (jwk == null)
{
throw new MalformedRequestException("Could not load JWK.");
}
var securityKey = jwk.SecurityKey;
using var signatureProvider = new AsymmetricSignatureProvider(securityKey, header.Alg);
var plainText = System.Text.Encoding.UTF8.GetBytes($"{request.Header}.{request.Payload ?? ""}");
var signature = Base64UrlEncoder.DecodeBytes(request.Signature);
if (!signatureProvider.Verify(plainText, signature))
{
throw new MalformedRequestException("The signature could not be verified");
}
_logger.LogDebug("successfully validated signature.");
}
private void AsymmetricSignatureProviders_Verify_Variation(SecurityKey key, string algorithm, byte[] rawBytes, byte[] signature, ExpectedException ee, List <string> errors, bool shouldSignatureSucceed)
{
try
{
AsymmetricSignatureProvider provider = new AsymmetricSignatureProvider(key, algorithm);
if (provider.Verify(rawBytes, signature) != shouldSignatureSucceed)
{
errors.Add("SignatureProvider.Verify did not return expected: " + shouldSignatureSucceed + " , algorithm: " + algorithm);
}
ee.ProcessNoException(errors);
}
catch (Exception ex)
{
ee.ProcessException(ex, errors);
}
}
public void SignatureProviders_SignAndVerify()
{
// asymmetric
try
{
Random r = new Random();
AsymmetricSignatureProvider provider = new AsymmetricSignatureProvider(KeyingMaterial.AsymmetricKey_2048, SecurityAlgorithms.RsaSha256Signature);
byte[] bytesin = new byte[1024];
r.NextBytes(bytesin);
byte[] signature = provider.Sign(bytesin);
}
catch (Exception ex)
{
Assert.IsFalse(ex.GetType() != typeof(InvalidOperationException), "ex.GetType() != typeof( InvalidOperationException )");
}
// asymmetric
try
{
Random r = new Random();
AsymmetricSignatureProvider provider = new AsymmetricSignatureProvider(KeyingMaterial.AsymmetricKey_2048, SecurityAlgorithms.RsaSha256Signature, true);
byte[] bytesin = new byte[1024];
r.NextBytes(bytesin);
byte[] signature = provider.Sign(bytesin);
Assert.IsFalse(!provider.Verify(bytesin, signature), string.Format("AsymmetricSignatureProvider did not verify"));
}
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.AsymmetricKey_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.SymmetricSecurityKey_256, SecurityAlgorithms.HmacSha256Signature);
byte[] bytesin = new byte[1024];
r.NextBytes(bytesin);
byte[] signature = provider.Sign(bytesin);
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.SymmetricSecurityKey_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 RsaCngAdapterTest(RsaCngAdapterTheoryData theoryData)
{
var context = TestUtilities.WriteHeader($"{this}.RsaCngAdapterTest", theoryData);
var cert = KeyingMaterial.CertSelfSigned2048_SHA256;
var rsaCapiPrivateKey = new RsaSecurityKey(cert.PrivateKey as RSA);
var rsaCapiPublicKey = new RsaSecurityKey(cert.PublicKey.Key as RSA);
var clearBytes = Encoding.UTF8.GetBytes("blue star");
byte[] capiSignatureBytes = null;
AsymmetricSignatureProvider providerCapiPrivate = null;
AsymmetricSignatureProvider providerCapiPublic = null;
// create CAPI providers
try
{
providerCapiPrivate = new AsymmetricSignatureProvider(rsaCapiPrivateKey, theoryData.Algorithm, true);
capiSignatureBytes = providerCapiPrivate.Sign(clearBytes);
providerCapiPublic = new AsymmetricSignatureProvider(rsaCapiPublicKey, theoryData.Algorithm, false);
if (!providerCapiPublic.Verify(clearBytes, capiSignatureBytes))
{
context.AddDiff("providerCapiPublic.Verify(clearBytes, capiSignatureBytes)");
}
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
var rsaCngPrivateKey = new RsaSecurityKey(cert.GetRSAPrivateKey());
var rsaCngPublicKey = new RsaSecurityKey(cert.GetRSAPublicKey());
byte[] cngSignatureBytes = null;
byte[] cngSignatureBytesByFactory = null;
// create private signing
AsymmetricSignatureProvider providerCngPrivate = null;
try
{
providerCngPrivate = new AsymmetricSignatureProvider(rsaCngPrivateKey, theoryData.Algorithm, true);
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
// create private signing with CryptoProviderFactory.Default
SignatureProvider providerCngPrivateByFactory = null;
try
{
providerCngPrivateByFactory = CryptoProviderFactory.Default.CreateForSigning(rsaCngPrivateKey, theoryData.Algorithm);
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
// create public verifying
AsymmetricSignatureProvider providerCngPublic = null;
try
{
providerCngPublic = new AsymmetricSignatureProvider(rsaCngPublicKey, theoryData.Algorithm, false);
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
// create public verifying with CryptoProviderFactory.Default
SignatureProvider providerCngPublicByFactory = null;
try
{
providerCngPublicByFactory = CryptoProviderFactory.Default.CreateForVerifying(rsaCngPublicKey, theoryData.Algorithm);
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
try
{
cngSignatureBytes = providerCngPrivate.Sign(clearBytes);
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
// cngByFactory Sign
try
{
cngSignatureBytesByFactory = providerCngPrivateByFactory.Sign(clearBytes);
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
// CngPublic -> CngPrivate validates
try
{
var cngVerify = providerCngPublic.Verify(clearBytes, cngSignatureBytes);
if (!cngVerify)
{
context.AddDiff($"cngVerify = providerCngPublic.Verify(clearBytes, cngSignatureBytes) == false.");
}
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
// CngPublicByFactory -> CngPrivate validates
try
{
var cngVerify = providerCngPublicByFactory.Verify(clearBytes, cngSignatureBytes);
if (!cngVerify)
{
context.AddDiff($"cngVerify = providerCngPublicByFactory.Verify(clearBytes, cngSignatureBytes) == false.");
}
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
// CngPublic -> CAPI validates
try
{
var cngVerify = providerCngPublic.Verify(clearBytes, capiSignatureBytes);
if (!cngVerify)
{
context.AddDiff($"cngVerify = providerCngPublic.Verify(clearBytes, capiSignatureBytes) == false.");
}
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
// CngPublicByFactory -> CAPI validates
try
{
var verify = providerCngPublicByFactory.Verify(clearBytes, capiSignatureBytes);
if (!verify)
{
context.AddDiff($"verify = providerCngPublicByFactory.Verify(clearBytes, capiSignatureBytes) == false.");
}
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
// CAPIPublic -> Cng validates
try
{
var verify = providerCapiPublic.Verify(clearBytes, cngSignatureBytes);
if (!verify)
{
context.AddDiff($"verify = providerCapiPublic.Verify(clearBytes, cngSignatureBytes) == false.");
}
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
// CAPIPublic -> CngByFactory validates
try
{
var verify = providerCapiPublic.Verify(clearBytes, cngSignatureBytesByFactory);
if (!verify)
{
context.AddDiff($"verify = providerCapiPublic.Verify(clearBytes, cngSignatureBytesByFactory) == false.");
}
}
catch (Exception ex)
{
theoryData.ExpectedException.ProcessException(ex, context);
}
TestUtilities.AssertFailIfErrors(context);
}