/// <summary>
/// Verifies if the digital signature on the AS4 Message is valid.
/// </summary>
/// <param name="config"></param>
/// <returns></returns>
public bool VerifySignature(VerifySignatureConfig config)
{
if (config == null)
{
throw new ArgumentNullException(nameof(config));
}
var verifier = new SignatureVerificationStrategy(EnvelopeDocument);
return(verifier.VerifySignature(config));
}
public async Task ThenVerifySignatureFailsWithUntrustedCertificate()
{
var as4Message = await GetAS4Message(Properties.Resources.as4_soap_untrusted_signed_message);
// Assert to make sure that our arranged AS4Message is indeed signed.
Assert.True(as4Message.IsSigned);
var verificationStrategy = new SignatureVerificationStrategy(as4Message.EnvelopeDocument);
// Act / Assert
Assert.Throws <System.Security.Cryptography.CryptographicException>(
() => verificationStrategy.VerifySignature(AllowedUnknownRootCertAuthorityConfig()));
}
public async Task ThenSignStrategyVerifiesAS4MessageCorrectly()
{
// Arrange
var as4Message = await GetAS4Message(Properties.Resources.as4_soap_signed_message);
// Assert to make sure that our arranged AS4Message is indeed signed.
Assert.True(as4Message.IsSigned);
var verificationStrategy = new SignatureVerificationStrategy(as4Message.EnvelopeDocument);
bool validSignature = verificationStrategy.VerifySignature(AllowedUnknownRootCertAuthorityConfig());
Assert.True(validSignature);
}
/// <summary>
/// Get the Signed References from the signature.
/// </summary>
/// <returns></returns>
public IEnumerable <System.Security.Cryptography.Xml.Reference> GetReferences()
{
// TODO: this must be improved.
try
{
var securityHeader = this.GetXml();
if (securityHeader == null)
{
return(new System.Security.Cryptography.Xml.Reference[] { });
}
var signature = new SignatureVerificationStrategy(securityHeader.OwnerDocument);
return(signature.SignedInfo.References.OfType <System.Security.Cryptography.Xml.Reference>());
}
catch (Exception ex)
{
LogManager.GetCurrentClassLogger().Error(ex);
return(Enumerable.Empty <System.Security.Cryptography.Xml.Reference>());
}
}
