Python 生成随机密码

更新：2022-05-23 08:40:57编辑：Story归类：技术分享人气：325

生成随机密码这件事情用python来干确实相当的方便，优美的string方法加上choice简直是绝配

make_password.py

###简单几行代码执行即可生成记不住的字符串###

$ python make_passwd.py
 DLrw9EiT
 Qs4Wm84q
 RQwl4L2L
 u9g0LgwW
 jHPtYdyU
 ...

$ python make_passwd . py

DLrw9EiT

Qs4Wm84q

RQwl4L2L

u9g0LgwW

jHPtYdyU

. . .

代码如下——注释比代码长

#!/usr/bin/python
 #--coding:utf-8--#
 #-------------------------------------------------------------------------------
 # Name: make_passwd
 #
 # Author: LiuSha
 #
 # Created: 28/12/2014
 # Copyright: (c) WDZJ-SA 2014
 #-------------------------------------------------------------------------------
 from random import choice
 import string
def Makepass(length=8, chars=string.letters+string.digits):
 return ''.join([choice(chars) for i in range(length)])
if __name__ == '__main__':
 for i in range(10):
 print Makepass()
##下例基本上就是这个小脚本的所有工作核心了，使用random模块的choice方法取string模块生成的字符串##
 >>> string.letters
 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
 >>> string.digits
 '0123456789'
>>> choice(string.digits)
 '4'
 >>> choice(string.letters)
 'T'
##有关生成器可参考:http://www.ipython.me/python/python-generator.html##

#!/usr/bin/python

#--coding:utf-8--#

#-------------------------------------------------------------------------------

# Name: make_passwd

# Author: LiuSha

# Created: 28/12/2014

# Copyright: (c) WDZJ-SA 2014

#-------------------------------------------------------------------------------

from random import choice

import string

def Makepass ( length = 8 , chars = string . letters + string . digits ) :

return '' . join ( [ choice ( chars ) for i in range ( length ) ] )

if __name__ == '__main__' :

for i in range ( 10 ) :

print Makepass ( )

##下例基本上就是这个小脚本的所有工作核心了，使用random模块的choice方法取string模块生成的字符串##

>>> string . letters

'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'

>>> string . digits

'0123456789'

>>> choice ( string . digits )

'4'

>>> choice ( string . letters )

'T'

##有关生成器可参考:http://www.ipython.me/python/python-generator.html##

生成一些人似乎能好记一些的密码(Qs4Wm84q这种密码似乎除了复制粘贴没有别的选择，话说前年我使用shell生成的类似的密码给ldap做默认密码，我当时公司就真有员工把这样的密码背下来了，现在想想真心是厉害~~~)。

##这样看起来是比上面的好记一点了吧，但需要提供一个字典文件##

$ python make_dictpass.py 1 8 1
 ipythosd
$ python make_dictpass.py
 nahontchen
 chenyibfeo
 ipythoniue
 coreostche
 ...

$ python make_dictpass . py 1 8 1

ipythosd

$ python make_dictpass . py

nahontchen

chenyibfeo

ipythoniue

coreostche

. . .

代码如下

#!/usr/bin/python
 #--coding:utf-8--#
 #-------------------------------------------------------------------------------
 # Name: make_dictpass
 #
 # Author: LiuSha
 #
 # Created: 28/12/2014
 # Copyright: (c) WDZJ-SA 2014
 #-------------------------------------------------------------------------------
 import random
 import string
class passwd():
 data = open('./word.txt').read().lower()
 def renew(self, n, maxmem=3):
 self.chars = []
 for i in range(n):
 randspot = random.randrange(len(self.data))
 self.data = self.data[randspot:] + self.data[:randspot]
 where = -1
 locate = ''.join(self.chars[-maxmem:])
 while where < 0 and locate: where = self.data.find(locate) locate = locate[1:] c = self.data[where+len(locate)+1] if not c.islower(): c = random.choice(string.lowercase) self.chars.append(c) def __str__(self): return ''.join(self.chars) if __name__ == '__main__': import sys ##如果带参数的话可以定义生成密码的次数，长度，追溯记录## if len(sys.argv) > 1:
 dopass = int(sys.argv[1])
 else:
 dopass = 8
 if len(sys.argv) > 2:
 length = int(sys.argv[2])
 else:
 length = 10
 if len(sys.argv) > 3:
 memory = int(sys.argv[3])
 else:
 memory = 3
 onepass = passwd()
 for i in range(dopass):
 onepass.renew(length,memory)
 print onepass
##字典文件(可以是各种单词的组合)##
 $ cat word.txt
 chenyi
 itchenyi
 python
 ipython
 coreos
 coreos.me
 ipython.me

#!/usr/bin/python

#--coding:utf-8--#

#-------------------------------------------------------------------------------

# Name: make_dictpass

# Author: LiuSha

# Created: 28/12/2014

# Copyright: (c) WDZJ-SA 2014

#-------------------------------------------------------------------------------

import random

import string

class passwd ( ) :

data = open ( './word.txt' ) . read ( ) . lower ( )

def renew ( self , n , maxmem = 3 ) :

self . chars = [ ]

for i in range ( n ) :

randspot = random . randrange ( len ( self . data ) )

self . data = self . data [ randspot : ] + self . data [ : randspot ]

where = - 1

locate = '' . join ( self . chars [ - maxmem : ] )

while where < 0 and locate : where = self . data . find ( locate ) locate = locate [ 1 : ] c = self . data [ where + len ( locate ) + 1 ] if not c . islower ( ) : c = random . choice ( string . lowercase ) self . chars . append ( c ) def __str__ ( self ) : return '' . join ( self . chars ) if __name__ == '__main__' : import sys ##如果带参数的话可以定义生成密码的次数，长度，追溯记录## if len(sys.argv) > 1: