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from binascii import b2a_hex, a2b_hex
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from Crypto.Cipher import AES
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from Crypto import Random
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import time # 引入time模块
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iv = Random.new().read(AES.block_size)
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class aestest():
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# ***********Begin**************
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def __init__(self, key):
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self.key = key.encode('utf-8')
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def encrypt(self, text):
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text = text.encode('utf-8')
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aes = AES.new(self.key, AES.MODE_CFB,iv) # 这里是直接调用函数AES.new，参数是密钥和ECB模式设置。初始化加密器
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ctext = aes.encrypt(text) # 加密
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return ctext
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def decrypt(self, text):
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text = text.encode('utf-8')
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aes = AES.new(self.key, AES.MODE_CFB,iv)
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plain = aes.decrypt(a2b_hex(text))
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return plain
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# ************End***************
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def Evidence(text, key):
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aes = aestest(key)
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text = text.encode('utf-8')
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T1 = time.time()
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for i in range(100000):
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enc = aes.encrypt(text)
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T2 = time.time()
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# print(T2-T1)
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T_e = T2-T1
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enc = b2a_hex(enc) # 字符串转换
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T3 = time.time()
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for i in range(100000):
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detext = aes.decrypt(enc)
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T4 = time.time()
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# print(T4-T3)
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T_d = T4 - T3
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return T_e,T_d
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# if __name__ == "__main__":
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# # str1, str2 = input().split()
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# # Evidence(str1, str2)
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# test = {16:'1234567812345678',24:'123456781234567812345678',32:'12345678123456781234567812345678'}
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# for b,str2 in test.items():
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# T_e = Evidence('xyqshiyigedasgya', str2)[0]
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# T_d = Evidence('xyqshiyigedasgya', str2)[1]
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# print(str(b)+'位的加密时间是'+str(T_e)+" 它加密的数据是"+str2)
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# print('它的加密效率是'+str(12.8/T_e)+' Mbps')
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# print(str(b) + '位的解密时间是' + str(T_d))
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# print('它的解密效率是' + str(12.8 / T_d) + ' Mbps')
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