安装
pip install Werkzeug使用示例
# -*- coding: utf-8 -*-
from werkzeug.security import generate_password_hash, check_password_hash# 加密,每次执行都生成不一样的结果
print(generate_password_hash('123456'))
# pbkdf2:sha256:150000$MNuGXsZ5$70327cb9dcbb591c80d5c953c683745422e7a124c6207c4fd0a5db89c94fd24a
# pbkdf2:sha256:150000$mrcVlodY$94d50e91227ebd05e136f933e85978c5906e6584163b562dc7e8639ac2dce06e
...
Security and Cryptography in Python - Key Exchange(3)
Diffie–Hellman key exchange:
https://en.wikipedia.org/wiki/Diffie–Hellman_key_exchange
Primitive root modulo n
https://en.wikipedia.org/wiki/Primitive_root_modulo_n
Implementation is Python Code:
import math
import randomdef is_prime(p):for i in range(2, math.isqrt(p)):if p % i == 0:return Falsereturn Truedef get_prime(size):while True:p = ra...
Security and Cryptography in Python - Block Cipher(1)
DES
https://en.wikipedia.org/wiki/Data_Encryption_Standard
GOST
https://en.wikipedia.org/wiki/GOST_(block_cipher)
pyDes
https://github.com/twhiteman/pyDes/blob/master/pyDes.py
DES
ECB mode
from pyDes import *message = "0123456701234567"
key = "DESCRYPT"
iv = bytes([0]*8)
k = des(key, ECB, iv, pad=None, padmode=PAD_PKCS5)cipher = k.encrypt(messa...
Security and Cryptography in Python - Stream Ciphers(4)
Low entropy - Brute force of our Stream Cipher
import randomclass KeyStream:def __init__(self, key=1):self.next = keydef rand(self):self.next = (1103515245*self.next + 12345) % 2**31return self.nextdef get_key_byte(self):return (self.rand()//2**23) % 256def encrypt(key, message):return bytes([message[i]^ key.get_key_byte() for i in range(le...
Security and Cryptography in Python - One Time Pad
XOR Example
def xor(x, s):print(x, 'xor', s, '=', x^s)def xorb(x, s):print(bin(x), 'xor', bin(s), '=', bin(x^s))xor(4, 8)
xorb(4, 8)
xor(4, 4)
xorb(4, 4)
xor(255, 1)
xorb(255, 1)
xor(255, 128)
xorb(255, 128)Running Result:What is One Time Pad?
Encryption: message^key(random) = cipher
Decryption: cipher^key(random) = message
import randomdef genera...
Security and Cryptography in Python - Substitution Cipher
A Substitution Cipher has
\[26! = 403291461126605635584000000
\]possible permutations / possible keys.
\[26! = 403291461126605635584000000
\]\[2^88 = 309485009821345068724781056
\]Hence a 88 bit security.
Encryption
import randomdef generate_key():letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"cletters = list(letters)key = {}for c in letters:key[c] ...
我不确定是什么导致了这个错误./lhapdf_wrap.cc: In function ‘void SWIG_Python_AddErrorMsg(const char*)’:
./lhapdf_wrap.cc:877:62: warning: too many arguments for format [-Wformat-extra-args]PyErr_Format(type, "%s", PyString_AsString(old_str), mesg);^
./lhapdf_wrap.cc:881:42: warning: format not a string literal and no format arguments [-Wformat-security]PyErr_Format(PyExc_RuntimeError, mesg);^代码...
我正在使用Flask建立一个网站,我现在正在尝试使用Flask_Security进行基于令牌的身份验证.我现在想从用户那里获得一个auth_token,我使用了get_auth_token() method.不幸的是我在这条消息下面得到了栈跟踪.
有人知道什么是错的吗?欢迎所有提示!Traceback (most recent call last):File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1836, in __call__return self.wsgi_app(environ, start_response)File "/usr/lo...
尝试使用flask-security启用登录烧瓶.以下代码工作正常(我在__init__.py中导入)from flask import Blueprint, render_template, request, redirect, url_for
from coursly import app
from coursly.models import *
from flask.ext.security import Security, LoginForm, SQLAlchemyUserDatastoreuser_datastore = SQLAlchemyUserDatastore(db, user.User, user.Role)
Security(app, user_datastore)user = Blueprint('user', __na...
我正在使用flask安全性来验证用户身份.我已经确保使用http_auth_required装饰器正确地进行身份验证 – 用户正在针对用户身份验证(在我的情况下是一个SQLAlchemyUserDatastore),一切都很顺利.
我现在想要使用我自己的身份验证方法(我将使用自定义LDAP验证系统),同时仍然利用Flask-Security给我的东西(像current_user这样的东西).我写了一个自定义装饰器,看起来像这样:def authenticate_with_ldap(func):@wraps(func)def wrapper(*a...
我正在一个用户通过OAuth登录的网站,而不是基于密码的系统.
因此,Flask-Security的默认登录页面实际上不适用于我的用例,因为我需要OAuth设置的/ login端点.我能够通过更改SECURITY_LOGIN_URL设置选项来使我的/登录路由没有被Flask-Security覆盖.
这一切都运行正常,OAuth登录页面显示并返回所需的所有信息.
这个问题开始了,因为我也在尝试使用@login_required装饰器.
如果用户未登录,则@login_required装饰器将重定向到Flask-Securi...
在我的应用程序中,我使用flask-security添加了身份验证和授权主题. SQLAlchemy也用作数据提供者(MySQL作为后端).该应用程序运行正常.
然后,我做了一些MySQL跟踪,日志显示我在应用程序上请求的每个URL上,flask-security库发送两个数据库查询:
> select user from user userid =’用户标识符’> select from from role,roles_users …
我认为这是一个性能问题,我想尽量减少这些查询.我不知道是否有我缺少的配置功能.解决方法:无需进...