Question

我正在尝试在NodeJS中实现以下Python代码：

from Cryptodome.Cipher import AES
from functools import reduce
from Cryptodome.Hash import SHA256
from Cryptodome import Random
from binascii import b2a_hex

def encrypt(text, *params):
    key = createKey(*params)
    iv = Random.new().read(16)
    to_encrypt = _pad(text.encode('utf-8'))

    aes = AES.new(key, AES.MODE_CBC,iv)
    result = aes.encrypt(to_encrypt)
    padded = result + iv
    hexed = b2a_hex(padded)
    return hexed.decode('utf-8')


def decrypt(encrypted, *params):
    try:
        hex_data = bytes.fromhex(encrypted)
    except Exception as e:
        print('fromhex failed: {}'.format(e))
        return encrypted
    iv = hex_data[-16:]
    to_decrypt = hex_data[:-16]

    aes = AES.new(createKey(*params), AES.MODE_CBC, iv)
    result = aes.decrypt(to_decrypt)
    encrypt('Fname Snamne', '5b18f13dacef4a051745c895', '5b265df1acef4a4a1e9562fc', 'integrityCare')
    return _unpad(result).decode('utf-8')


def _unpad(s):
    return s[:-ord(s[len(s)-1:])]


def createKey(*params):
    acc = reduce((lambda x, y: x + y), params)
    return SHA256.new((acc).encode('utf-8')).digest()


def _pad(s):
    pad = 16 - len(s) % 16
    newlen = len(s) + pad
    return s.ljust(newlen, bytes([pad]))

换句话说，我需要两个功能的NodeJS实现：encrypt和decrypt。

这里有两个测试来检查实现是否正确（Python代码通过了）：

测试1：

decrypt('5b34bf12052364771da80b30bce3c986c610d26d3d9d1c8c41f755b45064fe48', '5b18f13dacef4a051745c895', '5b265df1acef4a4a1e9562fc', 'integrityCare')
Result: 'Fname Snamne'

测试2：

decrypt(encrypt('Fname Snamne', '5b18f13dacef4a051745c895', '5b265df1acef4a4a1e9562fc', 'integrityCare'), '5b18f13dacef4a051745c895', '5b265df1acef4a4a1e9562fc', 'integrityCare')
Result: 'Fname Snamne'

有一个非常流行的用于AES aes-js的NodeJS程序包，我只是无法在NodeJS上正确实现上述功能。

Node JS中Python AES加密/解密代码的实现

0 个答案: