(MFC) Create CAdES Signature (.p7s) Compliant with ICP-Brazil Digital Signature Standard PA AD RB v2.2

See more CAdES Examples

Demonstrates how to create a CMS signature w/ policy ID that is compliant with the ICP-Brazil Digital Signature Standard PA AD RB v2.2

For more information, see https://verificador.iti.gov.br/verifier-2.6.2/

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;

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

    // ------------------------------------------------------------------------------------------------------
    // Note: This example creates a CMS signature (.p7s) that contains the PDF.
    // It is different than signing a PDF.  To sign a PDF where the resulting PDF contains the CMS signature,
    // see this example:  Sign PDF for ICP-Brasil
    // ------------------------------------------------------------------------------------------------------

    CkCrypt2 crypt;

    CkCert cert;
    bool success = cert.LoadPfxFile("mySigningCert.pfx","pfxPassword");
    if (success != true) {
        strOut.append(cert.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    crypt.SetSigningCert(cert);
    crypt.put_HashAlgorithm("sha256");

    // Create JSON to indicate which signing attributes to include.
    CkJsonObject attrs;
    attrs.UpdateBool("contentType",true);
    attrs.UpdateBool("signingTime",true);
    attrs.UpdateBool("messageDigest",true);
    attrs.UpdateString("contentHint.text","Content-Type: application/octet-stream\r\nContent-Disposition: attachment;filename=\"documento.pdf\"");
    attrs.UpdateString("contentHint.oid","1.2.840.113549.1.7.1");
    attrs.UpdateString("policyId.id","2.16.76.1.7.1.1.2.2");
    attrs.UpdateString("policyId.hash","D2+ixigZgXFslceYmQOYRFI7HGHCyWIonNrHgR/u4p4=");
    attrs.UpdateString("policyId.hashAlg","SHA256");
    attrs.UpdateBool("signingCertificateV2",true);

    crypt.put_SigningAttributes(attrs.emit());

    // The input file can be any type of file.
    const char *inFile = "toBeSigned.pdf";
    const char *outFile = "signed.pdf.p7s";

    success = crypt.CreateP7M(inFile,outFile);
    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());

    }