Python中crypto模塊進行AES加密和解密
原文地址:https://www.cnblogs.com/youleng/p/9047477.html
#coding: utf8 import sys from Crypto.Cipher import AES from binascii import b2a_hex, a2b_hex class prpcrypt(): def __init__(self, key): self.key = key self.mode = AES.MODE_CBC #加密函數,如果text不是16的倍數【加密文本text必須為16的倍數!】,那就補足為16的倍數 def encrypt(self, text): cryptor = AES.new(self.key, self.mode, self.key) #這里密鑰key 長度必須為16(AES-128)、24(AES-192)、或32(AES-256)Bytes 長度.目前AES-128足夠用 length = 16 count = len(text) if(count % length != 0) : add = length - (count % length) else: add = 0 text = text + ('\0' * add) self.ciphertext = cryptor.encrypt(text) #因為AES加密時候得到的字符串不一定是ascii字符集的,輸出到終端或者保存時候可能存在問題 #所以這里統一把加密后的字符串轉化為16進制字符串 return b2a_hex(self.ciphertext) #解密后,去掉補足的空格用strip() 去掉 def decrypt(self, text): cryptor = AES.new(self.key, self.mode, self.key) plain_text = cryptor.decrypt(a2b_hex(text)) return plain_text.rstrip('\0') if __name__ == '__main__': pc = prpcrypt('keyskeyskeyskeys') #初始化密鑰 e = pc.encrypt("0123456789ABCDEF") d = pc.decrypt(e) print e, d e = pc.encrypt("00000000000000000000000000") d = pc.decrypt(e) print e, d