rsa_cipher 1.2.1

rsa_cipher is a powerful and easy-to-use package for RSA encryption and decryption in Dart.

example/rsa_cipher.dart

import 'package:pointycastle/export.dart';
import 'package:rsa_cipher/rsa_cipher.dart';

void main() async {
  // generate key
  final keyPair = RsaCipher().generateKeyPair();

  // encode key to pem
  final publicKeyPem = RsaCipher().keyToPem<RSAPublicKey>(keyPair.publicKey);
  final privateKeyPem = RsaCipher().keyToPem<RSAPrivateKey>(keyPair.privateKey);

  // decode pem to key
  final publicKey = RsaCipher().keyFromPem<RSAPublicKey>(publicKeyPem);
  final privateKey = RsaCipher().keyFromPem<RSAPrivateKey>(privateKeyPem);

  // save pem to file
  RsaCipher().storeKeyToFile(filePath: '.../public_key.pem', key: publicKey);
  RsaCipher().storeKeyToFile(filePath: '.../private_key.pem', key: privateKey);

  // get key from file
  final publicKeyFromFile = RsaCipher().retrieveKeyFromFile<RSAPublicKey>(
    '.../public_key.pem',
  );
  final privateKeyFromFile = RsaCipher().retrieveKeyFromFile<RSAPrivateKey>(
    '.../private_key.pem',
  );

  // encrypt text
  final cipherText = RsaCipher().encrypt(
    plaintext: "hello",
    publicKey: publicKey,
  );

  // decrypt text
  final plainText = RsaCipher().decrypt(
    ciphertext: cipherText,
    privateKey: privateKey,
  );
}