53 lines
1.5 KiB
Dart
53 lines
1.5 KiB
Dart
import 'package:encrypt/encrypt.dart' as encrypt;
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import 'package:flutter/foundation.dart';
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import '../../env/env.dart';
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var secretKey = Env.keyOfApp
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.toString()
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.split('XrXlBl')[0]; // Must be 16 characters for AES-128
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String initializationVector = Env.initializationVector; // Must be 16 characters
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final encryptionHelper = EncryptionHelper(
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secretKey: secretKey,
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initializationVector: initializationVector,
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);
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class EncryptionHelper {
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final encrypt.Key key;
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final encrypt.IV iv;
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EncryptionHelper(
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{required String secretKey, required String initializationVector})
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: key = encrypt.Key.fromUtf8(secretKey),
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iv = encrypt.IV.fromUtf8(initializationVector);
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// Initialize the helper
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/// Encrypts the given plain text
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String encryptData(String plainText) {
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try {
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final encrypter = encrypt.Encrypter(encrypt.AES(key,
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mode: encrypt.AESMode.cbc)); // Explicitly use CBC mode
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final encrypted = encrypter.encrypt(plainText, iv: iv);
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return encrypted.base64;
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} catch (e) {
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debugPrint('Encryption Error: $e');
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return '';
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}
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}
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/// Decrypts the given encrypted text
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String decryptData(String encryptedText) {
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try {
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final encrypter = encrypt.Encrypter(encrypt.AES(key,
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mode: encrypt.AESMode.cbc)); // Explicitly use CBC mode
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final encrypted = encrypt.Encrypted.fromBase64(encryptedText);
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final decrypted = encrypter.decrypt(encrypted, iv: iv);
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return decrypted;
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} catch (e) {
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debugPrint('Decryption Error: $e');
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return '';
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}
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}
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}
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