Unicode C++

PKCS7 Encrypt MIME

See more MIME Examples

Encrypt MIME using a digital certificate to create PKCS7 encrypted S/MIME. Unicode C++

#include <CkMimeW.h>
#include <CkCertW.h>

void ChilkatSample(void)
    {
    bool success = false;

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

    CkMimeW mime;

    //  Build a simple MIME message to be encrypted:
    success = mime.AddHeaderField(L"Content-Type",L"text/plain");
    success = mime.AddHeaderField(L"abc",L"123");
    mime.SetBody(L"This is a test");

    //  A digital certificate is required to create PKCS7 encrypted MIME.
    //  It can come from a variety of sources: .cer file, .pfx file, PEM files,
    //  an in-memory representation, or directly from a Windows
    //  registry-based certificate store.

    //  This example will load a certificate object from a .cer file.
    //  Note: Only the public-key is required to encrypt.  (Decryption
    //  requires a private key.)

    CkCertW cert;
    success = cert.LoadFromFile(L"myCert.cer");
    if (success == false) {
        wprintf(L"%s\n",cert.lastErrorText());
        return;
    }

    //  Encrypt the MIME:
    success = mime.Encrypt(cert);
    if (success == false) {
        wprintf(L"%s\n",mime.lastErrorText());
        return;
    }

    //  Display the MIME:
    wprintf(L"%s\n",mime.getMime());

    //  The resulting S/MIME looks something like this:

    //  abc: 123
    //  Content-Disposition: attachment; filename="smime.p7m";
    //  Content-Transfer-Encoding: base64
    //  Content-Type: application/x-pkcs7-mime;
    //   name="smime.p7m";
    //  
    //  MIICAQYJKoZIhvcNAQcDoIIB8jCCAe4CAQAxggGFMIIBgQIBADBpMFUxCzAJBgNVBAYTAlpBMSUw
    //  IwYDVQQKExxUaGF3dGUgQ29uc3VsdGluZyAoUHR5KSBMdGQuMR8wHQYDVQQDExZUaGF3dGUgQ29k
    //  ZSBTaWduaW5nIENBAhB4ouTcAmLszrGi170k1deSMA0GCSqGSIb3DQEBAQUABIIBABz59iwVufLZ
    //  QIPs0whUYMtBjIQxg5IOCxpoKJeJmLVzu9Q5Q1poxG9uYOveybS9c4wbl5A0DFfKTW5O4HhHcOHW
    //  TgcH4iqdwhiFWm/q9d5rjceJWBFQsGOcgoXSU/U2Xp+N47/+Pqyc5XJbxKnOc4YhPzO320JZsNB6
    //  p1NGk5SNnWqgbUDmEnfH8ZPHSV7dNi2aiFALYTyLjyp0lqJCsdZ524OPTZFfusrl/9ibPAW7jKuI
    //  FgDCcBtRJvolVF8iIHxaTw4rhk0qb1KWzxvB5j9HSLdyIKIPhZbxeS10bx18YkSsBlKfdKRalQag
    //  3oWSRdsK9/N75YHG8Pm+x9BOHUAwYAYJKoZIhvcNAQcBMBkGCCqGSIb3DQMCMA0CAToECAb+toBW
    //  txZigDhGZKSpUpuTiWvvSMemX/c79sSnMpuefVwGKFTDgXVLE2SoD5a9Yh5vcG7Mhl2IkilVwOMc
    //  fi23+g==
    }