React Native Requires Chilkat v11.0.0+

Generate an RSA Key and Save to Encrypted PEM

See more RSA Examples

Demonstrates how to generate an RSA key and save to an encrypted PEM file. React Native

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

function chilkatExample() {
  const rsa = new Rsa();

  // Generate a 2048-bit key.
  const privKey = new PrivateKey();
  try {
    rsa.genKey(2048, privKey);
  } catch {
    console.log(rsa.lastErrorText);
    return;
  }

  const password = 'secret';
  // Saving to a relative path (from the current working directory of the process).
  let path = 'rsaKeys/myTestRsaPrivate.pem';
  // Encrypt the PEM using 256-bit AES encryption.
  privKey.pkcs8EncryptAlg = 'aes256';
  try {
    privKey.savePkcs8EncryptedPemFile(password, path);
  } catch {
    console.log(privKey.lastErrorText);
    return;
  }

  // 

  // We can also save the public key.
  // There is no need to encrypt public keys.
  const pubKey = new PublicKey();
  privKey.toPublicKey(pubKey);

  path = 'rsaKeys/myTestRsaPublic.pem';
  // Choose PKCS1 or PKCS8
  // We'll choose PKCS8.
  const preferPkcs1 = false;
  try {
    pubKey.savePemFile(preferPkcs1, path);
  } catch {
    console.log(pubKey.lastErrorText);
    return;
  }

  // 

  console.log('Success.');
}