测试过程中需要对加密流量包进行加解密,有时候js太大调试过程中浏览器器会卡死。需要手动编写一个加解密工具对加解密信息处理。
小工具是使用python3编写的
python3 aes_tool.py encrypt "Hello, World!" key.txt --mode cfb
python3 aes_tool.py decrypt "encrypted_text" key.txt --mode ecb
可以将AESkey秘钥保存到key.txt文件中
import base64
# 导入加密库
from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
from cryptography.hazmat.backends import default_backend
# 导入命令行解析的库
import argparse
def read_key_from_file(file_path):
with open(file_path, 'rb') as file:
return file.read()
# 加密函数
def encrypt(text, key, mode):
key = read_key_from_file(key)
key = key.ljust(32)[:32]
iv = b'1234567890123456'
# 目前支持的AES解密模式,CFB模式和ECB模式
if mode == 'ecb':
cipher = Cipher(algorithms.AES(key), modes.ECB(), backend=default_backend())
elif mode == 'cfb':
cipher = Cipher(algorithms.AES(key), modes.CFB(iv), backend=default_backend())
else:
raise ValueError('Unsupported encryption mode')
encryptor = cipher.encryptor()
ciphertext = encryptor.update(text.encode()) + encryptor.finalize()
return base64.b64encode(ciphertext).decode()
# 解密函数
def decrypt(ciphertext, key, mode):
key = read_key_from_file(key)
key = key.ljust(32)[:32]
iv = b'1234567890123456'
if mode == 'ecb':
cipher = Cipher(algorithms.AES(key), modes.ECB(), backend=default_backend())
elif mode == 'cfb':
cipher = Cipher(algorithms.AES(key), modes.CFB(iv), backend=default_backend())
else:
raise ValueError('Unsupported encryption mode')
decryptor = cipher.decryptor()
plaintext = decryptor.update(base64.b64decode(ciphertext)) + decryptor.finalize()
return plaintext.decode()
def main():
# 支持的命令行
parser = argparse.ArgumentParser(description='AES加解密工具')
parser.add_argument('action', choices=['encrypt', 'decrypt'], help='加密或解密')
parser.add_argument('text', help='要加密或解密的字符串')
parser.add_argument('key', help='AES加解密的密钥文件路径')
parser.add_argument('--mode', choices=['ecb', 'cfb'], default='cfb', help='加密模式,默认为CFB模式')
args = parser.parse_args()
if args.action == 'encrypt':
result = encrypt(args.text, args.key, args.mode)
print('加密结果:', result)
elif args.action == 'decrypt':
result = decrypt(args.text, args.key, args.mode)
print('解密结果:', result)
if __name__ == '__main__':
main()