React Native

Export a Traditional Private Key as Encoded Text

Demonstrates the Chilkat PrivateKey.GetPkcs1ENC method, which exports the key as the traditional/preferred unencrypted DER and encodes the DER bytes as text. The only argument names the binary encoding, such as base64 or hex.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: This is the encoded-text form of the traditional DER representation — the same bytes the traditional PEM wraps, but returned as a string in the encoding you choose. Use it when a legacy consumer needs the traditional key structure delivered as text rather than as a PEM file. The DER is unencrypted, so the result is sensitive.

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React Native

import { PrivateKey } from '@chilkat/react-native'

function chilkatExample() {
  // Load a private key to export.
  const privKey = new PrivateKey();
  try {
    privKey.loadPemFile('qa_data/private.pem');
  } catch {
    console.log(privKey.lastErrorText);
    return;
  }

  // Export as the traditional/preferred unencrypted DER, then encode the DER bytes as text.  The
  // only argument names the binary encoding, such as "base64" or "hex".
  let encoded: string;
  try {
    encoded = privKey.getPkcs1ENC('base64');
  } catch {
    console.log(privKey.lastErrorText);
    return;
  }

  console.log(encoded);
}