65 lines
1.9 KiB
Dart
65 lines
1.9 KiB
Dart
import 'dart:developer';
|
|
import 'dart:typed_data';
|
|
|
|
import 'package:aes_crypt/aes_crypt.dart';
|
|
import 'package:encrypt/encrypt.dart';
|
|
import 'dart:convert';
|
|
|
|
class CryptoUtil {
|
|
static String getBase64EncodedSecureRandomString({int length = 32}) {
|
|
return SecureRandom(length).base64;
|
|
}
|
|
|
|
static String encryptToBase64(
|
|
String plainText, String base64Key, String base64IV) {
|
|
final encrypter = AES(Key.fromBase64(base64Key));
|
|
return encrypter
|
|
.encrypt(
|
|
Uint8List.fromList(utf8.encode(plainText)),
|
|
iv: IV.fromBase64(base64IV),
|
|
)
|
|
.base64;
|
|
}
|
|
|
|
static String decryptFromBase64(
|
|
String base64CipherText, String base64Key, String base64IV) {
|
|
final encrypter = AES(Key.fromBase64(base64Key));
|
|
return utf8.decode(encrypter
|
|
.decrypt(
|
|
Encrypted.fromBase64(base64CipherText),
|
|
iv: IV.fromBase64(base64IV),
|
|
)
|
|
.toList());
|
|
}
|
|
|
|
static Future<void> encryptFileToFile(
|
|
String sourcePath, String destinationPath, String key) async {
|
|
final encrypter = getEncrypter(key);
|
|
await encrypter.encryptFile(sourcePath, destinationPath);
|
|
}
|
|
|
|
static Future<void> encryptDataToFile(
|
|
Uint8List source, String destinationPath, String key) async {
|
|
final encrypter = getEncrypter(key);
|
|
await encrypter.encryptDataToFile(source, destinationPath);
|
|
}
|
|
|
|
static Future<void> decryptFileToFile(
|
|
String sourcePath, String destinationPath, String key) async {
|
|
final encrypter = getEncrypter(key);
|
|
await encrypter.decryptFile(sourcePath, destinationPath);
|
|
}
|
|
|
|
static Future<Uint8List> decryptFileToData(String sourcePath, String key) {
|
|
final encrypter = getEncrypter(key);
|
|
return encrypter.decryptDataFromFile(sourcePath);
|
|
}
|
|
|
|
static AesCrypt getEncrypter(String key) {
|
|
final encrypter = AesCrypt(key);
|
|
encrypter.aesSetMode(AesMode.cbc);
|
|
encrypter.setOverwriteMode(AesCryptOwMode.on);
|
|
return encrypter;
|
|
}
|
|
}
|