Hi;

I am using NCryptoki for sigining Soap Message Header. I prepare SOAP header on BeforeSendRequest.

I try to sign message with smartCard with same way and succesfully send to message to recipent. But change sign implamentation to hsm then I got "Signature or decryption is invalid" error. 

Hsm sign implementation:

byte[] hash = cryptoServiceProvider.ComputeHash(System.Text.Encoding.UTF8.GetBytes(signatureElement.OuterXml));
                Org.BouncyCastle.Asn1.X509.DigestInfo di = new Org.BouncyCastle.Asn1.X509.DigestInfo(new Org.BouncyCastle.Asn1.X509.AlgorithmIdentifier("2.16.840.1.101.3.4.2.1"), hash);  //SHA256 algorithm key
                byte[] digest = di.GetEncoded();
                signedXml.Signature.SignatureValue = nCipherSign.sign(digest);

signature calculated succesfully but recipent gives error.

What is wrong in this implementation?

Best Regards