Dart

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). Dart

import 'package:chilkat/chilkat.dart';

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

  final mime = CkMime();

  // Load the MIME
  try {
    mime.loadMimeFile('encrypted.mim');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final fac = CkFileAccess();
  final pfxData = fac.readEntireFile('pfxStore/myPkcs12.p12');
  if (!fac.lastMethodSuccess) {
    print(fac.lastErrorText);
    return;
  }

  final pfxPassword = 'myPassword';
  try {
    mime.decryptUsingPfxData(pfxData, pfxPassword);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Display the decrypted MIME:
  print(mime.getMime());

  // 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=
}