crypt | 易学教程

java - make string unreadable [closed]

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问题 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. Closed 6 years ago . I need an as short and fast as possible code to change a String to something unreadable (for humans that is), and also to make it readable again. It all needs to happen in java. Something like this: encrypt("test

golang equivalent of PHP crypt()

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问题 This line of code in PHP evaluates to true echo '$2a$09$f5561d2634fb28a969f2dO8QeQ70f4bjCnF/.GvPpjj.8jgmtzZP2' == crypt("enter-new-password",'$2a$09$f5561d2634fb28a969f2dO8QeQ70f4bjCnF/.GvPpjj.8jgmtzZP2'); What I need is a crypt function in Golang that will also evaluate to true. ATTEMPT 1 I tried this but it evaluated to false: import "github.com/nyarla/go-crypt" log.Println("$2a$09$f5561d2634fb28a969f2dO8QeQ70f4bjCnF/.GvPpjj.8jgmtzZP2" == crypt.Crypt("enter-new-password","$2a$09

golang equivalent of PHP crypt()

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Where 2x prefix are used in BCrypt?

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问题 The question is the same title, Where $2x$ is used in BCrypt? The following scenario is right? We have a set of passwords that hashed with $2a$ prefix already, when the Server PHP version was earlier 5.3.7 . Now we upgraded the PHP to 5.3.7+ , now we must firstly verify previous passwords with $2x$ algorithm then rehash the password with $2y$ prefix. That's right? 回答1: Note to wikipedia editors : Content in this answer is in the public domain; i know because i wrote it. I wrote it first for

openssl passwd

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openssl系列文章： http://www.cnblogs.com/f-ck-need-u/p/7048359.html 该伪命令用于生成加密的密码。 [root@xuexi tmp]# whatis passwd passwd (1) - update user's authentication tokens passwd (5) - password file passwd [sslpasswd] (1ssl) - compute password hashes 直接man passwd会得到修改用户密码的passwd命令帮助，而不是openssl passwd的帮助，所以man sslpasswd。 [root@xuexi tmp]# man sslpasswd NAME passwd - compute password hashes SYNOPSIS openssl passwd [-crypt] [-1] [-apr1] [-salt string] [-in file] [-stdin] [-quiet] {password} 使用openssl passwd支持3种加密算法方式：不指定算法时，默认使用-crypt。选项说明： -crypt：UNIX标准加密算法，此为默认算法。如果加盐(-salt)算密码，只取盐的前2位，2位后面的所有字符都忽略。 -1(数字)

Using the crypt module in Windows?

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问题 In IDLE and Python version 3.3.2, I try and call the python module like so: hash2 = crypt(word, salt) I import it at the top of my program like so: from crypt import * The result I get is the following: Traceback (most recent call last): File "C:\none\of\your\business\adams.py", line 10, in <module> from crypt import * File "C:\Python33\lib\crypt.py", line 3, in <module> import _crypt ImportError: No module named '_crypt' However, when I execute the same file adams.py in Ubuntu, with Python 2

crypt函数的linux实现，可以用于windows调用

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【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 参考源码 glibc-1.09-crypt.tar.gz #include<string.h> /* * UFC-crypt: ultra fast crypt(3) implementation * * Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of *

Why does a call to the crypt() function from unistd.h set the errno to ENOENT?

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问题 I have written and run the following code: #define _XOPEN_SOURCE #include <iostream> #include <unistd.h> int main() { std::cout << "errno = " << errno << std::endl; std::cout << crypt("sometext", "ab") << std::endl; std::cout << "errno = " << errno <<std:: endl; return 0; } The initial value of errno was 0 , but after a call to the crypt() function it was set to 2 ( ENOENT ). Here is the output: errno = 0 abtAunjzvWWRQ errno = 2 回答1: Here's what the C standard says about errno (§7.5, para 3,

php 安全基础附录C. 加密

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附录C. 加密作为一本相关安全方面的书，通常加密是需要提及的话题。我之所以在本书的主体部分忽略了加密问题，是因为它的用途是狭窄的，而开发者应从大处着眼来考虑安全问题。过分依赖于加密常常会混淆问题的根源。尽管加密本身是有效的，但是进行加密并不会神奇地提高一个应用的安全性。一个PHP开发人员应主要熟悉以下的加密方式： l 对称加密 l 非对称加密（公钥） l Hash函数（信息摘要） l 信息验证码本附录主要关注于使用mcrypt扩展的对称加密算法。你需要参考的资料如下：实用加密技术（Applied Cryptography）, by Bruce Schneier (Wiley) http://www.schneier.com/blog/ http://wikipedia.org/wiki/Cryptography http://phpsec.org/articles/2005/password-hashing.html http://pear.php.net/package/Crypt_HMAC http://pear.php.net/package/Crypt_RSA C.1. 密码的存储当你在数据库内存储的密码时，永远不要以明码方式存入，而是应该存储密码的hash值并同时使用附加字串： <?php /* $password contains the password.

Porting hashs from php's crypt() to python

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问题 I was wondering if there is a python cognate to PHP's crypt() function that performs in a similar way, generating a random salt and embedding it within the saved string. I have a table of hashed passwords that were created using the $5$ string key to setup a SHA256 based salted cryptogram. These hashes had some additional recorded entropy attached to both ends at a fixed interval, but splitting these characters off the string and getting the core hash is trivial and not a problem at all. I've