Sample code for 30+ languages & platforms
Dart

Add a Private Key and Certificate Chain to a PFX

See more PFX/P12 Examples

Demonstrates Pfx.AddPrivateKey, which adds a private key together with its certificate chain to the PFX object.

The file path is relative to the application's current working directory. An absolute path may also be used. Supply the path appropriate to your own environment.

Background. The chain must contain at least one certificate; the certificate at index 0 is treated as the leaf. The chain is built here with Cert.BuildCertChain.

Chilkat Dart Downloads

Dart
import 'package:chilkat/chilkat.dart';

void main() {
  final pfx = CkPfx();

  // The file path is relative to the application's current working directory.  An absolute path
  // may also be used.  Supply the path appropriate to your own environment.
  // Load the private key.
  final privKey = CkPrivateKey();
  try {
    privKey.loadPemFile('qa_data/private_key.pem');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Load the certificate and build its chain of authority.  The chain must contain at least one
  // certificate; the certificate at index 0 is treated as the leaf.
  final cert = CkCert();
  try {
    cert.loadFromFile('qa_data/cert.pem');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final chain = CkCertChain();
  try {
    cert.buildCertChain(chain);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Add the private key and its certificate chain to the PFX.
  try {
    pfx.addPrivateKey(privKey, chain);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Private key and certificate chain added to the PFX.');
}