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Unicode C++

Decrypt2

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Demonstrates how to decrypt MIME using a certificate and private key where the certificate and its corresponding private key are stored in separate files -- a .cer for the certificate, and a .pem for the private key.

Chilkat Unicode C++ Downloads

Unicode C++
#include <CkMimeW.h>
#include <CkCertW.h>
#include <CkPrivateKeyW.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkMimeW mime;

    // Load the certificate from a .cer file.
    CkCertW cert;
    success = cert.LoadFromFile(L"aaworkarea/myCert.cer");
    if (success == false) {
        wprintf(L"%s\n",cert.lastErrorText());
        return;
    }

    // Load the private key from an encrypted PEM file.
    // (A private key can be loaded from other file formats also..)
    CkPrivateKeyW privKey;
    success = privKey.LoadEncryptedPemFile(L"aaworkarea/myPrivateKey.pem",L"myPassword");
    if (success == false) {
        wprintf(L"%s\n",privKey.lastErrorText());
        return;
    }

    success = mime.LoadMimeFile(L"aaworkarea/encryptedMime.txt");
    if (success == false) {
        wprintf(L"%s\n",mime.lastErrorText());
        return;
    }

    // Decrypt using the cert and associated private key
    success = mime.Decrypt2(cert,privKey);
    if (success == false) {
        wprintf(L"%s\n",mime.lastErrorText());
        return;
    }

    // Save the S/MIME to a file.
    success = mime.SaveMime(L"aaworkarea/decryptedMime.txt");
    if (success == false) {
        wprintf(L"%s\n",mime.lastErrorText());
        return;
    }

    wprintf(L"success!\n");
    }