(C#) Create .p7s using Smart Card or USB Token

Demonstrates how to create a .p7s using a certificate stored on a smart card or USB token.

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// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Chilkat.Crypt2 crypt = new Chilkat.Crypt2();

// Use a certificate on a smartcard or USB token.
Chilkat.Cert cert = new Chilkat.Cert();

// Provide the smartcard PIN.
cert.SmartCardPin = "000000";

// Load the certificate on the smartcard currently in the reader (or on the USB token).
bool success = cert.LoadFromSmartcard("");
if (success != true) {
    Debug.WriteLine(cert.LastErrorText);
    return;
}

// Provide the certificate for signing.
success = crypt.SetSigningCert(cert);
if (success != true) {
    Debug.WriteLine(crypt.LastErrorText);
    return;
}

// Indicate that SHA-256 should be used.
crypt.HashAlgorithm = "sha256";

// Specify the signed attributes to be included.
Chilkat.JsonObject jsonSignedAttrs = new Chilkat.JsonObject();
jsonSignedAttrs.UpdateInt("contentType",1);
jsonSignedAttrs.UpdateInt("signingTime",1);
jsonSignedAttrs.UpdateInt("messageDigest",1);
jsonSignedAttrs.UpdateInt("signingCertificateV2",1);
crypt.SigningAttributes = jsonSignedAttrs.Emit();

string inFile = "qa_data/xml/IT01234567890_11002.xml";
string sigFile = "qa_output/IT01234567890_11002.xml.p7s";

// Create the .p7s, which is a signature file that does not embed the original data.
// (To create a signature file that also embeds the original data, call CreateP7M instead)
success = crypt.CreateP7S(inFile,sigFile);
if (success == false) {
    Debug.WriteLine(crypt.LastErrorText);
    return;
}

Debug.WriteLine("Success.");