96 lines
3 KiB
Dart
96 lines
3 KiB
Dart
import 'dart:typed_data';
|
|
|
|
import 'package:aes_crypt/aes_crypt.dart';
|
|
import 'package:computer/computer.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<String> encryptFileToFile(
|
|
String sourcePath, String destinationPath, String key) async {
|
|
final args = Map<String, String>();
|
|
args["key"] = key;
|
|
args["source"] = sourcePath;
|
|
args["destination"] = destinationPath;
|
|
return Computer().compute(runEncryptFileToFile, param: args);
|
|
}
|
|
|
|
static Future<String> encryptDataToFile(
|
|
Uint8List source, String destinationPath, String key) async {
|
|
final args = Map<String, dynamic>();
|
|
args["key"] = key;
|
|
args["source"] = source;
|
|
args["destination"] = destinationPath;
|
|
return Computer().compute(runEncryptDataToFile, param: args);
|
|
}
|
|
|
|
static Future<void> decryptFileToFile(
|
|
String sourcePath, String destinationPath, String key) async {
|
|
final args = Map<String, String>();
|
|
args["key"] = key;
|
|
args["source"] = sourcePath;
|
|
args["destination"] = destinationPath;
|
|
return Computer().compute(runDecryptFileToFile, param: args);
|
|
}
|
|
|
|
static Future<Uint8List> decryptFileToData(String sourcePath, String key) {
|
|
final args = Map<String, String>();
|
|
args["key"] = key;
|
|
args["source"] = sourcePath;
|
|
return Computer().compute(runDecryptFileToData, param: args);
|
|
}
|
|
}
|
|
|
|
Future<String> runEncryptFileToFile(Map<String, String> args) {
|
|
final encrypter = getEncrypter(args["key"]);
|
|
return encrypter.encryptFile(args["source"], args["destination"]);
|
|
}
|
|
|
|
Future<String> runEncryptDataToFile(Map<String, dynamic> args) {
|
|
final encrypter = getEncrypter(args["key"]);
|
|
return encrypter.encryptDataToFile(args["source"], args["destination"]);
|
|
}
|
|
|
|
Future<String> runDecryptFileToFile(Map<String, dynamic> args) async {
|
|
final encrypter = getEncrypter(args["key"]);
|
|
return encrypter.decryptFile(args["source"], args["destination"]);
|
|
}
|
|
|
|
Future<Uint8List> runDecryptFileToData(Map<String, dynamic> args) async {
|
|
final encrypter = getEncrypter(args["key"]);
|
|
return encrypter.decryptDataFromFile(args["source"]);
|
|
}
|
|
|
|
AesCrypt getEncrypter(String key) {
|
|
final encrypter = AesCrypt(key);
|
|
encrypter.aesSetMode(AesMode.cbc);
|
|
encrypter.setOverwriteMode(AesCryptOwMode.on);
|
|
return encrypter;
|
|
}
|