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(Unicode C) Create ICP-Brasil Compliant CMS Signature

Demonstrates how to create a .p7s signature that contains a data file, which in this case is a PDF. The .p7s will be compliant with the ICP-Brazil Digital Signature Standard.

The .p7s file created by this example can be verified at ICP-Brasil Online Verifier

Note: Requires Chilkat v9.5.0.92 or greater.

For more information, see http://www.iti.gov.br/images/repositorio/consulta-publica/encerradas/DOC-ICP-15_-_Versao_2.2_VISAO_GERAL_SOBRE_ASSIN_DIG_NA_ICP-BRASIL_xx-xx-2015.pdf

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#include <C_CkCrypt2W.h>
#include <C_CkBinDataW.h>
#include <C_CkCertW.h>
#include <C_CkJsonObjectW.h>

void ChilkatSample(void)
    {
    HCkCrypt2W crypt;
    const wchar_t *inFile;
    HCkBinDataW bd;
    BOOL success;
    HCkCertW cert;
    HCkJsonObjectW jsonSigningAttrs;

    // 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
    // ------------------------------------------------------------------------------------------------------
    crypt = CkCrypt2W_Create();

    // Any type of file can be signed.  It doesn't have to be a PDF.
    inFile = L"qa_data/pdf/helloWorld.pdf";

    bd = CkBinDataW_Create();
    success = CkBinDataW_LoadFile(bd,inFile);
    if (success == FALSE) {
        wprintf(L"Failed to load %s\n",inFile);
        CkCrypt2W_Dispose(crypt);
        CkBinDataW_Dispose(bd);
        return;
    }

    // We'll be using a certificate w/ private key stored on a smartcard for signing.
    cert = CkCertW_Create();

    // If the smartcard or token requires a PIN, we can set it here to avoid the dialog...
    CkCertW_putSmartCardPin(cert,L"000000");

    success = CkCertW_LoadFromSmartcard(cert,L"");
    if (success != TRUE) {
        wprintf(L"%s\n",CkCertW_lastErrorText(cert));
        CkCrypt2W_Dispose(crypt);
        CkBinDataW_Dispose(bd);
        CkCertW_Dispose(cert);
        return;
    }

    // Tell the crypt component to use this cert.
    success = CkCrypt2W_SetSigningCert(crypt,cert);
    if (success != TRUE) {
        wprintf(L"%s\n",CkCrypt2W_lastErrorText(crypt));
        CkCrypt2W_Dispose(crypt);
        CkBinDataW_Dispose(bd);
        CkCertW_Dispose(cert);
        return;
    }

    // Set properties for signing...
    CkCrypt2W_putHashAlgorithm(crypt,L"sha256");

    jsonSigningAttrs = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateInt(jsonSigningAttrs,L"contentType",1);
    CkJsonObjectW_UpdateInt(jsonSigningAttrs,L"signingTime",1);
    CkJsonObjectW_UpdateInt(jsonSigningAttrs,L"messageDigest",1);
    CkJsonObjectW_UpdateBool(jsonSigningAttrs,L"signingCertificateV2",TRUE);

    // Listed here are the currently existing profiles. (Chilkat will add additional ICP Brasil policy profiles in future versions as new ones are created.)
    // See https://www.gov.br/iti/pt-br/assuntos/repositorio/artefatos-de-assinatura-digital for more information.
    // 
    // PA_AD_RA --> 2.16.76.1.7.1.5.1
    // PA_AD_RA_v1_1 --> 2.16.76.1.7.1.5.1.1
    // PA_AD_RA_v1_2 --> 2.16.76.1.7.1.5.1.2
    // PA_AD_RA_v2_0 --> 2.16.76.1.7.1.5.2
    // PA_AD_RA_v2_1 --> 2.16.76.1.7.1.5.2.1
    // PA_AD_RA_v2_2 --> 2.16.76.1.7.1.5.2.2
    // PA_AD_RA_v2_3 --> 2.16.76.1.7.1.5.2.3
    // PA_AD_RA_v2_4 --> 2.16.76.1.7.1.5.2.4
    // PA_AD_RB --> 2.16.76.1.7.1.1.1
    // PA_AD_RB_v1_1 --> 2.16.76.1.7.1.1.1.1
    // PA_AD_RB_v2_0 --> 2.16.76.1.7.1.1.2
    // PA_AD_RB_v2_1 --> 2.16.76.1.7.1.1.2.1
    // PA_AD_RB_v2_2 --> 2.16.76.1.7.1.1.2.2
    // PA_AD_RB_v2_3 --> 2.16.76.1.7.1.1.2.3
    // PA_AD_RC --> 2.16.76.1.7.1.4.1
    // PA_AD_RC_v1_1 --> 2.16.76.1.7.1.4.1.1
    // PA_AD_RC_v2_0 --> 2.16.76.1.7.1.4.2
    // PA_AD_RC_v2_1 --> 2.16.76.1.7.1.4.2.1
    // PA_AD_RC_v2_2 --> 2.16.76.1.7.1.4.2.2
    // PA_AD_RC_v2_3 --> 2.16.76.1.7.1.4.2.3
    // PA_AD_RT --> 2.16.76.1.7.1.2.1
    // PA_AD_RT_v1_1 --> 2.16.76.1.7.1.2.1.1
    // PA_AD_RT_v2_0 --> 2.16.76.1.7.1.2.2
    // PA_AD_RT_v2_1 --> 2.16.76.1.7.1.2.2.1
    // PA_AD_RT_v2_2 --> 2.16.76.1.7.1.2.2.2
    // PA_AD_RT_v2_3 --> 2.16.76.1.7.1.2.2.3
    // PA_AD_RV --> 2.16.76.1.7.1.3.1
    // PA_AD_RV_v1_1 --> 2.16.76.1.7.1.3.1.1
    // PA_AD_RV_v2_0 --> 2.16.76.1.7.1.3.2
    // PA_AD_RV_v2_1 --> 2.16.76.1.7.1.3.2.1
    // PA_AD_RV_v2_2 --> 2.16.76.1.7.1.3.2.2
    // PA_AD_RV_v2_3 --> 2.16.76.1.7.1.3.2.3

    // Set the policy OID and the profile name
    CkJsonObjectW_UpdateString(jsonSigningAttrs,L"policyId.id",L"2.16.76.1.7.1.1.2.3");
    CkJsonObjectW_UpdateString(jsonSigningAttrs,L"policyId.profile",L"PA_AD_RB_v2_3");

    CkCrypt2W_putSigningAttributes(crypt,CkJsonObjectW_emit(jsonSigningAttrs));

    // The Brazil government validator requires the ASN.1 data to be in "constructed octets" form..
    CkCrypt2W_putUncommonOptions(crypt,L"UseConstructedOctets,OmitAlgorithmIdNull");
    CkCrypt2W_putIncludeCertChain(crypt,FALSE);

    // Sign. 
    success = CkCrypt2W_OpaqueSignBd(crypt,bd);
    if (success == FALSE) {
        wprintf(L"%s\n",CkCrypt2W_lastErrorText(crypt));
        CkCrypt2W_Dispose(crypt);
        CkBinDataW_Dispose(bd);
        CkCertW_Dispose(cert);
        CkJsonObjectW_Dispose(jsonSigningAttrs);
        return;
    }

    // Save to a .p7s
    success = CkBinDataW_WriteFile(bd,L"qa_output/helloWorld.pdf.p7s");

    wprintf(L"Success\n");


    CkCrypt2W_Dispose(crypt);
    CkBinDataW_Dispose(bd);
    CkCertW_Dispose(cert);
    CkJsonObjectW_Dispose(jsonSigningAttrs);

    }

 

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