Python 加密解密算法
呃,今天来看看加密和解密,本文讨论base64和hashlib库:
来看看HASHLIB,他是一种单向摘要出定长字符串的方法:
撸代码:
In [18]: import time,hashlib
In [19]: t = int(time.time())
In [20]: t
Out[20]: 1495597851
In [21]: md = hashlib.md5('test%s' %t)
In [22]: md.hexdigest()
Out[22]: '8ed81a627d94055cd34d3e7e1d2fed72'
In [23]: md = hashlib.md5('test%s' %t)
In [24]: md.hexdigest()
Out[24]: '8ed81a627d94055cd34d3e7e1d2fed72'
In [25]: md = hashlib.md5('test123%s' %t)
In [26]: md.hexdigest()
Out[26]: '554aac9fa6ba5a5821f6a80e840b6b36'
In [27]: md = hashlib.md5('test123%s' %t)
In [28]: md.hexdigest()
Out[28]: '554aac9fa6ba5a5821f6a80e840b6b36'
相同字符串md5加密后的16进制是一致的
接下来看base64
In [29]: import base64
In [30]: base64.b64encode('123456')
Out[30]: 'MTIzNDU2'
In [31]: base64.b64decode('MTIzNDU2')
Out[31]: '123456'
可以反向计算的
两者结合使用,嘻嘻嘻
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