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fix aes decryption

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nyne
2024-11-04 17:47:58 +08:00
parent 0fbe9677b9
commit 07f8f2a4af
1 changed files with 51 additions and 12 deletions
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63
lib/foundation/js_engine.dart
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@@ -1,7 +1,6 @@
import 'dart:convert';
import 'dart:io';
import 'dart:math' as math;
import 'package:crypto/crypto.dart';
import 'package:flutter/services.dart';
import 'package:html/parser.dart' as html;
@@ -238,7 +237,7 @@ mixin class _JSEngineApi {
Log.warning(
"JS Engine",
"Too many documents, deleting the oldest: $shouldDelete\n"
"Current documents: ${_documents.keys}",
"Current documents: ${_documents.keys}",
);
_documents.remove(shouldDelete);
}
@@ -350,9 +349,6 @@ mixin class _JSEngineApi {
case "utf8":
return isEncode ? utf8.encode(value) : utf8.decode(value);
case "base64":
if (value is String) {
value = utf8.encode(value);
}
return isEncode ? base64Encode(value) : base64Decode(value);
case "md5":
return Uint8List.fromList(md5.convert(value).bytes);
@@ -383,8 +379,21 @@ mixin class _JSEngineApi {
if (!isEncode) {
var key = data["key"];
var cipher = ECBBlockCipher(AESEngine());
cipher.init(false, KeyParameter(key));
return cipher.process(value);
cipher.init(
false,
KeyParameter(key),
);
var offset = 0;
var result = Uint8List(value.length);
while (offset < value.length) {
offset += cipher.processBlock(
value,
offset,
result,
offset,
);
}
return result;
}
return null;
case "aes-cbc":
@@ -393,7 +402,17 @@ mixin class _JSEngineApi {
var iv = data["iv"];
var cipher = CBCBlockCipher(AESEngine());
cipher.init(false, ParametersWithIV(KeyParameter(key), iv));
return cipher.process(value);
var offset = 0;
var result = Uint8List(value.length);
while (offset < value.length) {
offset += cipher.processBlock(
value,
offset,
result,
offset,
);
}
return result;
}
return null;
case "aes-cfb":
@@ -402,7 +421,17 @@ mixin class _JSEngineApi {
var blockSize = data["blockSize"];
var cipher = CFBBlockCipher(AESEngine(), blockSize);
cipher.init(false, KeyParameter(key));
return cipher.process(value);
var offset = 0;
var result = Uint8List(value.length);
while (offset < value.length) {
offset += cipher.processBlock(
value,
offset,
result,
offset,
);
}
return result;
}
return null;
case "aes-ofb":
@@ -411,7 +440,17 @@ mixin class _JSEngineApi {
var blockSize = data["blockSize"];
var cipher = OFBBlockCipher(AESEngine(), blockSize);
cipher.init(false, KeyParameter(key));
return cipher.process(value);
var offset = 0;
var result = Uint8List(value.length);
while (offset < value.length) {
offset += cipher.processBlock(
value,
offset,
result,
offset,
);
}
return result;
}
return null;
case "rsa":
@@ -426,8 +465,8 @@ mixin class _JSEngineApi {
default:
return value;
}
} catch (e) {
Log.error("JS Engine", "Failed to convert $type: $e");
} catch (e, s) {
Log.error("JS Engine", "Failed to convert $type: $e", s);
return null;
}
}