相当于 PyCrypto 的 CryptoJS

Question

我正在尝试使用节点下的 CryptoJS 来解密消息。我已经有了用于解密消息的工作 Python 代码，但我需要在 nodejs 下运行这个并且不想为每条消息调用 python。

from Crypto.Cipher import AES
from Crypto import Random
import base64

encrypted='tBIFLLdvl/Bp8XAwXBYatbJSYkNTl9/dXkHZd4OjbZ0I9Jg6xrAx/bxuQHuZrNSzYZOBEKbyMlTTT8nQEDza8wQ22mrRaZlQqT3aWpdZe6aiWAEIvTHoQPglgVbz1HnYOHfZtGmu3a3cwfpFMK+ouczTWM545nWvG/I4zV4uFgna1rW9sznxumN/3RKSbC1USZ2TM9PrG967M5Mu+riQfh9i/yt6ubwj3kln2+C0WsRRr44ELyDKGdS69YExa535z42bfXTORjvaiMvizvkz55c343s0G4ziT6tLfDCGELsrAu/2NViKxJZZRg8Dmm0FnchB9OQ4ujVCBoDUXvfx3iHjzquC+OftbOovQUecoXb7UfuwIxMekgSJnonLC45S'
key = '22<\09\8e.==\4#{{+!%i=]%Y/upi8!Z'
iv = '{+!%i=]%Y/upi8!Z'

cipher = AES.new(key, AES.MODE_CBC, iv)
print cipher.decrypt(base64.b64decode(encrypted))

这会打印出我从 python 解密的字符串。我确定此时我的 CryptoJS 版本完全错误。

var node_cryptojs = require('node-cryptojs-aes');
var CryptoJS = node_cryptojs.CryptoJS;
var key = CryptoJS.enc.Latin1.parse('22<\09\8e.==\4#{{+!%i=]%Y/upi8!Z');
var iv  = CryptoJS.enc.Latin1.parse('{+!%i=]%Y/upi8!Z');
var encrypted = 'tBIFLLdvl/Bp8XAwXBYatbJSYkNTl9/dXkHZd4OjbZ0I9Jg6xrAx/bxuQHuZrNSzYZOBEKbyMlTTT8nQEDza8wQ22mrRaZlQqT3aWpdZe6aiWAEIvTHoQPglgVbz1HnYOHfZtGmu3a3cwfpFMK+ouczTWM545nWvG/I4zV4uFgna1rW9sznxumN/3RKSbC1USZ2TM9PrG967M5Mu+riQfh9i/yt6ubwj3kln2+C0WsRRr44ELyDKGdS69YExa535z42bfXTORjvaiMvizvkz55c343s0G4ziT6tLfDCGELsrAu/2NViKxJZZRg8Dmm0FnchB9OQ4ujVCBoDUXvfx3iHjzquC+OftbOovQUecoXb7UfuwIxMekgSJnonLC45S';
var plaintextArray = CryptoJS.AES.decrypt({ ciphertext: encrypted }, key, { iv: iv } );
console.log(CryptoJS.enc.Latin1.stringify(plaintextArray));

这个版本出来的都是一堆乱码，比如

{)¬L¶u[?®º[ «)þd0³(Á¨ÕßgÙä  Þ¨Þêâí99dáb*¦ÿßqf pr£Æ(> þ?C×$ÀM#<o¬_±À¥s=ê,)u<¯XÚîDÊP¢q|fÌ½^IiaJÂ__NîjbÉâïðp8å.º}ÜucósLÈqÁè&ô£LYLüâÙháë

Answer 1

原来我的编码还差一个编码。 Latin1 解析是正确的。只是缺少输入的 base64 解码。一定是之前错过了那个组合。

var node_cryptojs = require('node-cryptojs-aes');
var CryptoJS = node_cryptojs.CryptoJS;
var key = CryptoJS.enc.Latin1.parse('22<\09\8e.==\4#{{+!%i=]%Y/upi8!Z');
var iv  = CryptoJS.enc.Latin1.parse('{+!%i=]%Y/upi8!Z');
var encrypted = 'tBIFLLdvl/Bp8XAwXBYatbJSYkNTl9/dXkHZd4OjbZ0I9Jg6xrAx/bxuQHuZrNSzYZOBEKbyMlTTT8nQEDza8wQ22mrRaZlQqT3aWpdZe6aiWAEIvTHoQPglgVbz1HnYOHfZtGmu3a3cwfpFMK+ouczTWM545nWvG/I4zV4uFgna1rW9sznxumN/3RKSbC1USZ2TM9PrG967M5Mu+riQfh9i/yt6ubwj3kln2+C0WsRRr44ELyDKGdS69YExa535z42bfXTORjvaiMvizvkz55c343s0G4ziT6tLfDCGELsrAu/2NViKxJZZRg8Dmm0FnchB9OQ4ujVCBoDUXvfx3iHjzquC+OftbOovQUecoXb7UfuwIxMekgSJnonLC45S';
var plaintextArray = CryptoJS.AES.decrypt({ ciphertext: CryptoJS.enc.Base64.parse(encrypted) }, key, { iv: iv } );
console.log(CryptoJS.enc.Latin1.stringify(plaintextArray));

相当于 PyCrypto 的 CryptoJS

CryptoJS equivalent of PyCrypto

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cryptojs