(Unicode C++) Decrypt a .p7m File (using a PFX)

Unicode C++ sample code showing how to decrypt a .p7m using a .p12 / .pfx certificate w/ private key.

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#include <CkCrypt2W.h>

void ChilkatSample(void)
    {
    // This example 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"myCertAndKey.pfx";
    const wchar_t *pfxPassword = L"test123";

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

    // Set the  outPath to whatever is appropriate.
    // If you are decrypting a PDF, your output might be "out.pdf"...
    const wchar_t *inPath = L"smime.p7m";
    const wchar_t *outPath = L"original.txt";

    // Indicate that we're doing public key decryption (i.e. PKCS7)
    crypt.put_CryptAlgorithm(L"pki");

    success = crypt.CkDecryptFile(inPath,outPath);
    if (success == false) {
        wprintf(L"%s\n",crypt.lastErrorText());
        return;
    }

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