(C++) Create CAdES-BES .p7m for FatturaPA XML Invoice

Demonstrates how to create a CAdES BES invoice.xml.p7m for the Italian FatturaPA exchange system.

Note: This example requires Chilkat v9.5.0.75.

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

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

void ChilkatSample(void)
    {
    //  Note: Requires Chilkat v9.5.0.75 or greater.

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

    CkCrypt2 crypt;

    //  Use a digital certificate and private key from a PFX file (.pfx or .p12).
    const char *pfxPath = "qa_data/pfx/cert_test123.pfx";
    const char *pfxPassword = "test123";

    CkCert cert;
    bool success = cert.LoadPfxFile(pfxPath,pfxPassword);
    if (success != true) {
        std::cout << cert.lastErrorText() << "\r\n";
        return;
    }

    //  Provide the signing cert (with associated private key).
    success = crypt.SetSigningCert(cert);
    if (success != true) {
        std::cout << crypt.lastErrorText() << "\r\n";
        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) {
        std::cout << crypt.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Success." << "\r\n";
    }