(Unicode C) Create CAdES (p7m) Signature using ARSS (Aruba Remote Signing Service)

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Demonstrates creating a CAdES (p7m) signature using the Aruba Remote Signing Service.

Note: This example requires Chilkat v9.5.0.96 or later.

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

void ChilkatSample(void)
    {
    HCkCertW cert;
    BOOL success;
    HCkJsonObjectW jsonArss;
    HCkCrypt2W crypt;
    HCkJsonObjectW signedAttrs;
    const wchar_t *inputXmlPath;
    const wchar_t *outputP7mPath;

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

    // Load the certificate used for signing.  The certificate's private key is stored on 
    // the Aruba.it server and the signing will happen remotely using the
    // ARSS (Aruba Remote Signing Service).
    // However, we still need the certificate locally (without private key).
    cert = CkCertW_Create();
    success = CkCertW_LoadFromFile(cert,L"qa_data/certs/myCert.cer");
    if (success == FALSE) {
        wprintf(L"%s\n",CkCertW_lastErrorText(cert));
        CkCertW_Dispose(cert);
        return;
    }

    // To sign using the Aruba Remote Signing Service, 
    // add the following lines of code to specify your authentication credentials,
    // and the ID of the certificate w/ private key on the server to be used.
    jsonArss = CkJsonObjectW_Create();

    // Set the "service" equal to "ARSS" to tell Chilkat to use ARSS for signing.
    CkJsonObjectW_UpdateString(jsonArss,L"service",L"ARSS");
    // Specify the certificate ID, such as "AS0"
    // This certificate should match the certificate loaded in the above code.
    CkJsonObjectW_UpdateString(jsonArss,L"certID",L"YOUR_ARSS_CERT_ID");
    CkJsonObjectW_UpdateString(jsonArss,L"otpPwd",L"YOUR_OTP_PWD");
    CkJsonObjectW_UpdateString(jsonArss,L"typeOtpAuth",L"demoprod");
    CkJsonObjectW_UpdateString(jsonArss,L"user",L"YOUR_ARSS_USERNAME");
    CkJsonObjectW_UpdateString(jsonArss,L"userPWD",L"YOUR_ARSS_PASSWORD");
    success = CkCertW_SetCloudSigner(cert,jsonArss);

    crypt = CkCrypt2W_Create();

    success = CkCrypt2W_SetSigningCert(crypt,cert);
    if (success == FALSE) {
        wprintf(L"%s\n",CkCrypt2W_lastErrorText(crypt));
        CkCertW_Dispose(cert);
        CkJsonObjectW_Dispose(jsonArss);
        CkCrypt2W_Dispose(crypt);
        return;
    }

    // The CadesEnabled property applies to all methods that create PKCS7 signatures. 
    // To create a CAdES-BES signature, set this property equal to true.
    CkCrypt2W_putCadesEnabled(crypt,TRUE);

    CkCrypt2W_putHashAlgorithm(crypt,L"sha256");

    signedAttrs = CkJsonObjectW_Create();
    CkJsonObjectW_UpdateInt(signedAttrs,L"contentType",1);
    CkJsonObjectW_UpdateInt(signedAttrs,L"signingTime",1);
    CkJsonObjectW_UpdateInt(signedAttrs,L"messageDigest",1);
    CkJsonObjectW_UpdateInt(signedAttrs,L"signingCertificateV2",1);
    CkCrypt2W_putSigningAttributes(crypt,CkJsonObjectW_emit(signedAttrs));

    // You can sign any type of file..
    inputXmlPath = L"qa_data/e-Invoice.xml";
    outputP7mPath = L"qa_output/signed.p7m";

    // Create the CAdES-BES attached signature, which contains the original data.
    // Chilkat will build the .p7m locally, but will (internally) use ARSS
    // to do the RSA signing remotely.
    success = CkCrypt2W_CreateP7M(crypt,inputXmlPath,outputP7mPath);
    if (success == FALSE) {
        wprintf(L"%s\n",CkCrypt2W_lastErrorText(crypt));
        CkCertW_Dispose(cert);
        CkJsonObjectW_Dispose(jsonArss);
        CkCrypt2W_Dispose(crypt);
        CkJsonObjectW_Dispose(signedAttrs);
        return;
    }

    wprintf(L"Success.\n");


    CkCertW_Dispose(cert);
    CkJsonObjectW_Dispose(jsonArss);
    CkCrypt2W_Dispose(crypt);
    CkJsonObjectW_Dispose(signedAttrs);

    }