字符串加密和解密

1、 安装教程

安装步骤教程
https://github.com/sfbahr/PyCrypto-Wheels
pip3 install wheel
pip install pycryptodome
pycrypto，pycrytodome和crypto是一个东西，crypto在python上面的名字是pycrypto它是一个第三方库，但是已经停止更新三年了，所以不建议安装这个库；
进入目录：
pip3 install pycrypto-2.6.1-cp35-none-win32.whl


安装出错，试了很多次才成功安装‘
pip2 install pycryptodome
pip3 install pycryptodome

2、加密

from Crypto.Cipher import AES
from binascii import b2a_hex,a2b_hex

# ######################### 加密  #########################
def encrpyt(message):
    key = b'dfdsdfsasdfdsdfs'  # 必须16个字节
    cipher = AES.new(key, AES.MODE_CBC, key)
    ba_data = bytearray(message, encoding='utf-8')
    v1 = len(ba_data)
    print('字符串长度：',v1)
    v2 = v1 % 16
    if v2 == 0:
        v3 = 16
    else:
        v3 = 16 - v2
    print('需要增加的字节数，保证是16字节的倍数：',v3)
    for i in range(v3):
        ba_data.append(v3)
    # final_data = ba_data.decode('utf-8')
    final_data = ba_data.decode('utf-8')
    msg = cipher.encrypt(ba_data)
    return msg

3、 解密

# ######################### 解密  #########################
from Crypto.Cipher import AES
from binascii import b2a_hex,a2b_hex
def decrypt(msg):
    from Crypto.Cipher import AES
    key = b'dfdsdfsasdfdsdfs'
    cipher = AES.new(key, AES.MODE_CBC, key)
    result = cipher.decrypt(msg)
    data = result[0:-result[-1]]
    return str(data, encoding='utf-8')

4、 测试执行代码

data = "房间爱哭了房间啊"
v1 = encrpyt(data)
print('v1',v1)
v2 = decrypt(v1)
print('v2@@@',v2)

5、 结果

C:Python3python.exe D:/字符串加密解密AES.py
字符串长度： 24
需要增加的字节数，保证是16字节的倍数： 8
加密后的字符串： b'xacxfbx0bxa6xd9.rxd0xfcxc5x8beHx82x94xe4xab7xe2tqx96dx1axadxc6xccx8exe8x08x81xa8'
解密后的字符串： 房间爱哭了房间啊

Process finished with exit code 0