AES(高级加密)

AES(高级加密)

#3.6安装  pip3 install pycryptodome
#mac     pip3 install pycrypto

a. 事例:

############################### 加密 ##############################

	from Crypto.Cipher import AES
	def encrypt(message):
	    key = b'dfdsdfsasdfdsdfs'						#key必须是16的整数倍
	    cipher = AES.new(key, AES.MODE_CBC, key)		#创建对象
	    ----------------------------------------------
	    #先转成字节,把数据拼够16字节的整数倍
	    ba_data = bytearray(message,encoding='utf-8')	#把数据转成bytearray(byte的数组),bytearray只能追加数字,默认把数字转成字节
	    v1 = len(ba_data)
	    v2 = v1 % 16
	    if v2 == 0:
	        v3 = 16
	    else:
	        v3 = 16 - v2								#v3是追加的长度
	    for i in range(v3):
	        ba_data.append(v3)							#bytearray只能追加数字,默认把数字转成字节
	    final_data = ba_data.decode('utf-8')
		----------------------------------------------
	    msg = cipher.encrypt(final_data) 				#要加密的字符串，必须是16个字节或16个字节的倍数,加密后是byte格式
	    return msg

############################### 解密 ##############################
	def decrypt(msg):
	    key = b'dfdsdfsasdfdsdfs'
	    cipher = AES.new(key, AES.MODE_CBC, key)
	    result = cipher.decrypt(msg)					#把加密后的字节解密成不加密的字节
	    data = result[0:-result[-1]]
	    return str(data,encoding='utf-8')

　　

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