python模拟mysql password密码生成算法

我的密码保存在mysql中是经过mysqlpassword进行加密的，那么在django中如何加吗以及如何在登录验证的时候校验密码呢，

通过网站查找资料研究mysql password的加密算法，总结下下面的小脚本，python实现，一个是mysql老版的加密方式；一个是

mysql新版的加密算法。具体的测试和代码如下：

[root@Git ~]# python test.py hello
70de51425df9d787
*6B4F89A54E2D27ECD7E8DA05B4AB8FD9D1D8B119
[root@Git ~]# more test.py
#!/usr/bin/python
def mysql_hash_password(password):
nr = 1345345333
add = 7
nr2 = 0x12345671

for c in (ord(x) for x in password if x not in (' ', '\t')):
nr^= (((nr & 63)+add)*c)+ (nr << 8) & 0xFFFFFFFF
nr2= (nr2 + ((nr2 << 8) ^ nr)) & 0xFFFFFFFF
add= (add + c) & 0xFFFFFFFF

return "%08x%08x" % (nr & 0x7FFFFFFF,nr2 & 0x7FFFFFFF)

import hashlib

def mysql_password(str):
"""
Hash string twice with SHA1 and return uppercase hex digest,
prepended with an asterix.

This function is identical to the MySQL PASSWORD() function.
"""
pass1 = hashlib.sha1(str).digest()
pass2 = hashlib.sha1(pass1).hexdigest()
return "*" + pass2.upper()
if __name__ == '__main__':
import sys
if len(sys.argv) != 2:
print >> sys.stderr , 'Python Implementation of MySQL\'s old password hash'
print >> sys.stderr , 'Usage: %s password' % sys.argv[0]
sys.exit(1)
print mysql_hash_password(sys.argv[1])
print mysql_password(sys.argv[1])