(Unicode 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.

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#include <CkCrypt2W.h>
#include <CkCertW.h>
#include <CkJsonObjectW.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.

    CkCrypt2W crypt;

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

    CkCertW cert;
    bool success = cert.LoadPfxFile(pfxPath,pfxPassword);
    if (success != true) {
        wprintf(L"%s\n",cert.lastErrorText());
        return;
    }

    //  Provide the signing cert (with associated private key).
    success = crypt.SetSigningCert(cert);
    if (success != true) {
        wprintf(L"%s\n",crypt.lastErrorText());
        return;
    }

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

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

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

    //  Create the CAdES-BES signature, which contains the original data.
    success = crypt.CreateP7M(inFile,sigFile);
    if (success == false) {
        wprintf(L"%s\n",crypt.lastErrorText());
        return;
    }

    wprintf(L"Success.\n");
    }