python实现加密
1、md5加密
hashlib 库中包括如SHA1、SHA224、SHA256、SHA384、SHA512和MD5算法等
>>> import hashlib
>>> hashlib.md5('123'.encode('utf-8')).hexdigest() '202cb962ac59075b964b07152d234b70'
2、base64
import base64 str = 'hello world'.encode(encoding='utf-8') #加密 encodestr = base64.b64encode(str) print(encodestr) #b'aGVsbG8gd29ybGQ=' print(encodestr.decode()) #aGVsbG8gd29ybGQ= #解密 decodestr = base64.b64decode(encodestr) print(decodestr) #b'hello world' print(decodestr.decode()) #hello world
3、AES
#AES-demo import base64 from Crypto.Cipher import AES ''' 采用AES对称加密算法 ''' # str不是16的倍数那就补足为16的倍数 def add_to_16(value): while len(value) % 16 != 0: value += '\0' return str.encode(value) # 返回bytes #加密方法 def encrypt_oracle(): # 秘钥 key = '123456' # 待加密文本 text = 'abc123def456' # 初始化加密器 aes = AES.new(add_to_16(key), AES.MODE_ECB) #先进行aes加密 encrypt_aes = aes.encrypt(add_to_16(text)) #用base64转成字符串形式 encrypted_text = str(base64.encodebytes(encrypt_aes), encoding='utf-8') # 执行加密并转码返回bytes print(encrypted_text) #解密方法 def decrypt_oralce(): # 秘钥 key = '123456' # 密文 text = 'qR/TQk4INsWeXdMSbCDDdA==' # 初始化加密器 aes = AES.new(add_to_16(key), AES.MODE_ECB) #优先逆向解密base64成bytes base64_decrypted = base64.decodebytes(text.encode(encoding='utf-8')) # decrypted_text = str(aes.decrypt(base64_decrypted),encoding='utf-8') # 执行解密密并转码返回str print(decrypted_text) if __name__ == '__main__': # encrypt_oracle() decrypt_oralce()
4、RSA
pip install rsa //安装rsa模块
1 import rsa 2 key = rsa.newkeys(3000)#生成随机秘钥 3 privateKey = key[1]#私钥 4 publicKey = key[0]#公钥 5 message ='sanxi Now is better than never.' 6 print('Before encrypted:',message) 7 message = message.encode() 8 cryptedMessage = rsa.encrypt(message, publicKey) 9 print('After encrypted:\n',cryptedMessage) 10 message = rsa.decrypt(cryptedMessage, privateKey) 11 message = message.decode() 12 print('After decrypted:',message)
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