115 lines
2.8 KiB
Python
115 lines
2.8 KiB
Python
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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LabVIEW AES解密脚本
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用于解密MES接口返回的加密数据
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密钥：YaviiMESpassword
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算法：AES-128/ECB/PKCS5Padding
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依赖安装：
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pip install pycryptodome
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使用方法：
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python 2025-10-18_硬件融合接口解密脚本.py <encrypted_data>
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示例：
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python 2025-10-18_硬件融合接口解密脚本.py "U2FsdGVkX1+..."
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返回：
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{"Object":"root","Class":"password123"}
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"""
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from Crypto.Cipher import AES
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from Crypto.Util.Padding import unpad
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import base64
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import sys
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import json
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# AES密钥（必须与Java后端一致，16字节）
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AES_KEY = b"YaviiMESpassword"
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def aes_decrypt(encrypted_data):
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"""
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AES解密函数
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参数：
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encrypted_data: Base64编码的密文字符串
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返回：
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解密后的明文字符串
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异常：
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如果解密失败，抛出Exception
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"""
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try:
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# 创建AES解密器（ECB模式）
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cipher = AES.new(AES_KEY, AES.MODE_ECB)
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# Base64解码
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encrypted_bytes = base64.b64decode(encrypted_data)
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# AES解密
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decrypted_bytes = cipher.decrypt(encrypted_bytes)
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# 去除填充（PKCS5/PKCS7）
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decrypted_bytes = unpad(decrypted_bytes, AES.block_size)
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# 转换为字符串
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return decrypted_bytes.decode('utf-8')
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except Exception as e:
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raise Exception(f"AES解密失败: {str(e)}")
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def main():
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"""
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主函数
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命令行用法：python 2025-10-18_硬件融合接口解密脚本.py <encrypted_data>
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"""
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if len(sys.argv) < 2:
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print("=" * 60)
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print("LabVIEW AES解密工具")
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print("=" * 60)
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print()
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print("用法：")
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print(" python 2025-10-18_硬件融合接口解密脚本.py <encrypted_data>")
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print()
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print("示例：")
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print(" python 2025-10-18_硬件融合接口解密脚本.py \"U2FsdGVkX1+...\"")
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print()
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print("参数说明：")
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print(" encrypted_data: Base64编码的AES密文")
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print()
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print("密钥信息：")
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print(" 算法: AES-128")
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print(" 模式: ECB")
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print(" 密钥: YaviiMESpassword")
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print()
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print("=" * 60)
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sys.exit(1)
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encrypted_data = sys.argv[1]
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try:
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# 解密
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decrypted = aes_decrypt(encrypted_data)
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# 尝试格式化JSON输出（美化）
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try:
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json_obj = json.loads(decrypted)
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print(json.dumps(json_obj, ensure_ascii=False, indent=2))
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except:
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# 如果不是JSON，直接输出
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print(decrypted)
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except Exception as e:
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print(f"错误: {str(e)}", file=sys.stderr)
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sys.exit(1)
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if __name__ == "__main__":
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main()
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