public void BasicSignedCmsTest()
{
// Load PKCS#11 based store
using (var pkcs11Store = new Pkcs11X509Store(SoftHsm2Manager.LibraryPath, SoftHsm2Manager.PinProvider))
{
// Find signing certificate
Pkcs11X509Certificate pkcs11Cert = Helpers.GetCertificate(pkcs11Store, SoftHsm2Manager.Token1Label, SoftHsm2Manager.Token1TestUserRsaLabel);
// Get PKCS#11 based private key
AsymmetricAlgorithm pkcs11PrivKey = pkcs11Cert.GetPrivateKey();
// Create signature with SignedCms class and PKCS#11 based private key
byte[] dataToSign = Encoding.UTF8.GetBytes("Hello world!");
ContentInfo contentInfo = new ContentInfo(dataToSign);
SignedCms signedCms = new SignedCms(contentInfo);
CmsSigner cmsSigner = new CmsSigner(SubjectIdentifierType.IssuerAndSerialNumber, pkcs11Cert.Info.ParsedCertificate, pkcs11PrivKey);
signedCms.ComputeSignature(cmsSigner);
byte[] encodedCms = signedCms.Encode();
// Verify signature
signedCms = new SignedCms();
signedCms.Decode(encodedCms);
signedCms.CheckSignature(true);
}
}
