C

PKCS7 Decrypt Using .pfx or .p12 Data

See more MIME Examples

Demonstrates how to decrypt MIME using a specifc PFX file (.pfx or .p12) for the source of certificate(s) and private key(s). C

#include <C_CkMime.h>
#include <C_CkByteData.h>
#include <C_CkFileAccess.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkMime mime;
    HCkByteData pfxData;
    HCkFileAccess fac;
    const char *pfxPassword;

    success = FALSE;

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

    mime = CkMime_Create();

    //  Load the MIME
    success = CkMime_LoadMimeFile(mime,"encrypted.mim");
    if (success == FALSE) {
        printf("%s\n",CkMime_lastErrorText(mime));
        CkMime_Dispose(mime);
        return;
    }

    pfxData = CkByteData_Create();
    fac = CkFileAccess_Create();
    success = CkFileAccess_ReadEntireFile(fac,"pfxStore/myPkcs12.p12",pfxData);
    if (CkFileAccess_getLastMethodSuccess(fac) != TRUE) {
        printf("%s\n",CkFileAccess_lastErrorText(fac));
        CkMime_Dispose(mime);
        CkByteData_Dispose(pfxData);
        CkFileAccess_Dispose(fac);
        return;
    }

    pfxPassword = "myPassword";
    success = CkMime_DecryptUsingPfxData(mime,pfxData,pfxPassword);
    if (success == FALSE) {
        printf("%s\n",CkMime_lastErrorText(mime));
        CkMime_Dispose(mime);
        CkByteData_Dispose(pfxData);
        CkFileAccess_Dispose(fac);
        return;
    }

    //  Display the decrypted MIME:
    printf("%s\n",CkMime_getMime(mime));

    //  Note: The MIME to be decrypted should look something like this
    //  when viewed in a text editor:
    //  (Note that the Content-Type is application/x-pkcs7-mime)

    //  Content-Disposition: attachment; filename="smime.p7m";
    //  Content-Transfer-Encoding: base64
    //  Content-Type: application/x-pkcs7-mime;
    //   name="smime.p7m";
    //  
    //  MIICRAYJKoZIhvcNAQcDoIICNTCCAjECAQAxggHIMIIBxAIBADCBqzCBlTELMAkGA1UEBhMCVVMx
    //  CzAJBgNVBAgTAlVUMRcwFQYDVQQHEw5TYWx0IExha2UgQ2l0eTEeMBwGA1UEChMVVGhlIFVTRVJU
    //  UlVTVCBOZXR3b3JrMSEwHwYDVQQLExhodHRwOi8vd3d3LnVzZXJ0cnVzdC5jb20xHTAbBgNVBAMT
    //  FFVUTi1VU0VSRmlyc3QtT2JqZWN0AhEA5vxolKNrYgp1Z7ABICdK+zANBgkqhkiG9w0BAQEFAASC
    //  AQAJ68jTh3u3ovsOuz1aHXTV90GBB6DMfCdx0bZ85trSvDXBevMOtQdctz653de8EB2xU4RlaPQa
    //  oBpF8G01PMaKezd+FGLbhm7gmKl7boej3BboUzM4wrwjc8qHTGc/haT1ZA3jUU3DR4emVXNmRgWc
    //  FDU5Dnkf+Z2YXQop9wPCf1Ng+8LLjBX9yxgXP1ZyFDe9vUnSkk2fmZatEY2Y6eWHNbrj6q4F40qN
    //  PAyZW1rJSFmKTSPSzv7S0VWBMh+FgUKtqk4I6/+zhneLYeJBZFskmMIGFpgKdgrN7vbbr1a2gv/M
    //  PbHUxwKMD4KZ2auyuGKMVLBOm+n8v5f8EegloL/UMGAGCSqGSIb3DQEHATAZBggqhkiG9w0DAjAN
    //  AgE6BAgcohHNLdl9FoA4q22x8vXs05wuScRgLhwMOzvdGQkBJx+6iQDBuoCVxF8sQ35g+0PPxN3M
    //  6Zw6nI1gSIIKBS3ZjtI=


    CkMime_Dispose(mime);
    CkByteData_Dispose(pfxData);
    CkFileAccess_Dispose(fac);

    }