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Dart

Convert to DER encoded X.509 Certificate (.cer, .crt)

See more Certificates Examples

Loads a digital certificate from any format and saves to a binary DER encoded X.509 Certificate (.cer, .crt).

Chilkat Dart Downloads

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

void main() {
  final cert = CkCert();

  // LoadFromFile will load virtually any certificate format file.
  // It will auto-recognize the format and load appropiately.
  // In this case, load a PEM format certificate and convert to DER.
  try {
    cert.loadFromFile('/Users/chilkat/testData/pem/chilkat.pem');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  try {
    cert.exportCertDerFile('chilkat.der');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Converted certificate from PEM to DER format.');
}