Python常见加解密脚本

import hashlib
m = hashlib.md5()
m.update('111111'.encode("utf8"))
print(m.hexdigest())

import hashlib
sha1 = hashlib.sha1()
data = 'helloword'
sha1.update(data.encode('utf-8'))
sha1_data = sha1.hexdigest()
print(sha1_data)

# pip3 install pycryptodomex
# DES是一个分组加密算法，典型的DES以64位为分组对数据加密，加密和解密用的是同一个算法。它的密钥长度是56位（因为每个第8 位都用作奇偶校验），密钥可以是任意的56位的数，而且可以任意时候改变。

from Cryptodome.Cipher import DES
key = b'88888888'
data = "hello world"
count = 8 - (len(data) % 8)
plaintext = data + count * "="
des = DES.new(key, DES.MODE_ECB)
ciphertext = des.encrypt(plaintext.encode())
print(ciphertext)

plaintext = des.decrypt(ciphertext)
plaintext = plaintext[:(len(plaintext)-count)]
print(plaintext)

# 安装模块
pip3 install rsa -i https://pypi.douban.com/simple

import rsa
# 返回 公钥加密、私钥解密
public_key, private_key = rsa.newkeys(1024)
print(public_key)
print(private_key)

# plaintext = b"hello world"
# ciphertext = rsa.encrypt(plaintext, public_key)
# print('公钥加密后：',ciphertext)
# plaintext = rsa.decrypt(ciphertext, private_key)
# print('私钥解密：',plaintext)

### 使用私钥签名
plaintext = b"hello world"
sign_message = rsa.sign(plaintext, private_key, "MD5")
print('私钥签名后：',sign_message)

## 验证私钥签名
plaintext = b"hello world"
# method = rsa.verify(b"hello world", sign_message, public_key)
method = rsa.verify(b"hello world1", sign_message, public_key) # 报错Verification failed
print(method)

import base64

# 编码
res=base64.b64encode(b'hello world')
print(res)

# 解码
res=base64.b64decode('aGVsbG8gd29ybGQ=')
print(res)

#  %E4%B8%8A%E6%B5%B7
# 中文被url编码了

from urllib import parse
print(parse.quote('上海'))  # %E4%B8%8A%E6%B5%B7
print(parse.unquote('%E4%B8%8A%E6%B5%B7'))