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(MFC) Create CAdES-BES .p7m using Smart Card or USB Token

Demonstrates how to create a CAdES BES invoice.xml.p7m using a certificate stored on a smart card or USB token.

Note: This example requires Chilkat v9.5.0.77 and at the time of this writing is restricted to the Windows operating system.

Chilkat C/C++ Library Downloads

MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkCrypt2.h>
#include <CkCert.h>
#include <CkJsonObject.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // Note: Requires Chilkat v9.5.0.77 or greater.

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

    CkCrypt2 crypt;

    // Use a certificate on a smartcard or USB token.
    CkCert cert;
    // Load the certificate on the smartcard currently in the reader (or on the USB token).
    // Pass an empty string to allow Chilkat to automatically choose the CSP (Cryptographi Service Provider).
    // See Load Certificate on Smartcard for information about explicitly selecting a particular CSP.
    bool success = cert.LoadFromSmartcard("");
    if (success != true) {
        strOut.append(cert.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Provide the smartcard PIN.
    // If the PIN is not explicitly provided here, the Windows OS should
    // display a dialog for the PIN.
    cert.put_SmartCardPin("000000");

    // Provide the certificate for signing.
    success = crypt.SetSigningCert(cert);
    if (success != true) {
        strOut.append(crypt.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Indicate that SHA-256 should be used.
    crypt.put_HashAlgorithm("sha256");

    // Specify the signed attributes to be included.
    // (This is what makes it CAdES-BES compliant.)
    CkJsonObject jsonSignedAttrs;
    jsonSignedAttrs.UpdateInt("contentType",1);
    jsonSignedAttrs.UpdateInt("signingTime",1);
    jsonSignedAttrs.UpdateInt("messageDigest",1);
    jsonSignedAttrs.UpdateInt("signingCertificateV2",1);
    crypt.put_SigningAttributes(jsonSignedAttrs.emit());

    const char *inFile = "qa_data/xml/IT01234567890_11002.xml";
    const char *sigFile = "qa_output/IT01234567890_11002.xml.p7m";

    // Create the CAdES-BES signature, which contains the original data.
    success = crypt.CreateP7M(inFile,sigFile);
    if (success == false) {
        strOut.append(crypt.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    strOut.append("Success.");
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }

 

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