Dart

PBES2 Password-Based Encryption

See more Encryption Examples

Demonstrates PBES2 encryption Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // This example assumes the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  final crypt = CkCrypt2();

  // Set properties for PBES2 encryption:

  // When the encryption algorithm is set to "pbes2",
  // Chilkat will automatically derive the actual secret key using PBKDF2 and
  // the specified paramters: password, salt, iteration count, hash function, and desired key length.

  crypt.cryptAlgorithm = 'pbes2';
  crypt.pbesPassword = 'mySecretPassword';

  // Set the underlying PBE algorithm (and key length):
  crypt.pbesAlgorithm = 'aes';
  crypt.keyLength = 256;

  crypt.setEncodedIV('000102030405060708090A0B0C0D0E0F', 'hex');

  // Give it some salt:
  crypt.setEncodedSalt('0102030405060708', 'hex');

  // A higher iteration count makes the algorithm more
  // computationally expensive and therefore exhaustive
  // searches (for breaking the encryption) is more difficult:
  crypt.iterationCount = 1024;

  // A hash algorithm needs to be set for PBES2:
  crypt.hashAlgorithm = 'sha256';

  // Indicate that the encrypted bytes should be returned
  // as a hex string:
  crypt.encodingMode = 'hex';

  final plainText = 'To be encrypted.';

  final encryptedText = crypt.encryptStringENC(plainText);

  print(encryptedText);

  // Now decrypt:
  final decryptedText = crypt.decryptStringENC(encryptedText);

  print(decryptedText);
}