[英]TypeError: must be string or buffer, not int
i am trying to solve the Rainbow Tables
issue with password encryption and have come only this far. 我正在尝试使用密码加密来解决
Rainbow Tables
问题,仅此而已。
import sys
import random
import hashlib
def mt_rand (low = 0, high = sys.maxint):
"""Generate a better random value
"""
return random.randint (low, high)
def substr (s, start, length = None):
"""Returns the portion of string specified by the start and length
parameters.
"""
if len(s) >= start:
return False
if not length:
return s[start:]
elif length > 0:
return s[start:start + length]
else:
return s[start:length]
def unique_salt():
return substr(hashlib.sha1(mt_rand()),0,22)
password = "12345"
salt = unique_salt()
hash = hashlib.sha1(salt + password).hexdigest()
print(hash)
I am getting this error: 我收到此错误:
Traceback (most recent call last):
File "C:/Users/Ajay/PycharmProjects/itertools/test.py", line 27, in <module>
salt = unique_salt()
File "C:/Users/Ajay/PycharmProjects/itertools/test.py", line 24, in unique_salt
return substr(hashlib.sha1(mt_rand()),0,22)
TypeError: must be string or buffer, not int
I know i am missing something very trivial but cant get where i am missing. 我知道我想念一些非常琐碎的东西,但无法找到我想念的地方。 Please Help.
请帮忙。
hashlib.sha1
accepts a string as a parameter. hashlib.sha1
接受字符串作为参数。
>>> import hashlib
>>> hashlib.sha1('asdf')
<sha1 HASH object @ 0000000002B97DF0>
But you're passing a int object. 但是,您正在传递一个int对象。 (The return value of the
random.randint
is int
object as the name suggest) (顾名思义,
random.randint
的返回值是int
对象)
>>> hashlib.sha1(1234)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: must be string or buffer, not int
You can use os.urandom
to generate random string: 您可以使用
os.urandom
生成随机字符串:
>>> import os
>>> hashlib.sha1(os.urandom(10)) # `os.urandom(10)` generate 10-bytes random string.
<sha1 HASH object @ 0000000002B97F30>
>>> hashlib.sha1(os.urandom(10)).digest()
'\x0c.y\x08\x13\xf0\x16.\xea\x05\x03\x07{6H\xa0U\xfe\xdfT'
>>> hashlib.sha1(os.urandom(10)).hexdigest()
'6e33d9cfdbd7ffcf062ee502eaa25893f618fcff'
You can use python's built-in function type
to inspect objects. 您可以使用python的内置函数
type
检查对象。
>>>type(mt_rand())
int
>>>hashlib.sha1(mt_rand())
TypeError: must be string or buffer, not int
This is to be expected. 这是预料之中的。 Pass hashlib.sha1 a string instead.
而是传递hashlib.sha1一个字符串。
>>>hashlib.sha1("password")
<sha1 HASH object @ 0x1c89cb0>
hashlib.sha1
needs a string to be hashed, but you put an integer. hashlib.sha1
需要对字符串进行哈希处理,但是您要输入一个整数。
Convert it to string first: 首先将其转换为字符串:
def unique_salt():
return substr(hashlib.sha1(str(mt_rand())),0,22)
Here's a bit of demo: 这里有一些演示:
>>> import hashlib
>>> import random
>>> s = random.randint(1, 1000)
>>> hashlib.sha1(str(s)).digest()
'\xd1\x84\x01\xb1\xbb7\xc5\xd9)|\xf1o\xc48X\xb4\xfd\xb3x%'
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.