Dart

Provide a Certificate Vault to an Email

Demonstrates the Chilkat Email.UseCertVault method, which adds an XML certificate vault to the email's internal certificate and private-key lookup sources for encryption, decryption, signing, and verification. This example builds a vault from a PFX and attaches it to the email.

Background: A certificate vault is a portable, in-memory store of certificates and private keys. Instead of wiring up each certificate individually for every operation, you load your credentials into one XmlCertVault and hand it to the email; Chilkat then draws on it automatically whenever it needs a key — to decrypt an incoming message, sign an outgoing one, or verify a signature. This is especially convenient on platforms without an OS certificate store.

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Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // Demonstrates the UseCertVault method, which adds an XML certificate vault to the email's
  // internal certificate and private-key lookup sources for encryption, decryption, signing,
  // and verification.

  final email = CkEmail();

  // Build a certificate vault from a PFX (certificate + private key).
  final vault = CkXmlCertVault();
  try {
    vault.addPfxFile('qa_data/certs/certs.pfx', 'pfx_password');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Make the vault available to the email object for crypto operations.
  try {
    email.useCertVault(vault);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Certificate vault attached to the email.');

  // Note: The path "qa_data/certs/certs.pfx" is a relative local filesystem path,
  // relative to the current working directory of the running application.
}