bcrypt | 易学教程

Bycript/Blowfish and Salts with existing auth system

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问题 I'm trying to transition to Blowfish for an authentication system. Bear with me, I'm not a cryptographer and my understanding of Blowfish is not quite there yet. The current setup uses sha1 and salts. The salts are generated for each user and stored in the database. It boils down to this: $salt = $this->getSalt($username); $hash = sha1($password . $salt); if ($hash == $hashInDB) { // user is authenticated, set session id etc ... } The getSalt() method gets the salt stored in the database for

MongoDb + Mongoose | How to hash array of passwords instead of a single password

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问题 I have a json array containing data of almost 300 users. I am using (Mongoose)Model.InsertMany() for saving user data array to Mongodb. To hash a single user password i am using this guide: https://www.mongodb.com/blog/post/password-authentication-with-mongoose-part-1 but i want to hash passwords of all users at once. This guide uses 'save' function to hash but as i am using 'InsertMany()' to dump to Mongodb so how can i achieve hashing by using InsertMany() 回答1: You can use pre save hook in

MongoDb + Mongoose | How to hash array of passwords instead of a single password

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Using 512-hash before Bcrypt?

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问题 I want to use Bcrypt for the password encryption in my systems. But all the examples are something like this: $password = $_POST['password']; $salt = substr(str_replace('+', '.', base64_encode(sha1(microtime(true), true))), 0, 22); $hash = crypt($password, '$2a$12$'.$salt); This looks pretty safe to me, but I was wondering, in each example, nobody hashes the password before using Bcrypt. Due to the unique salt, Rainbow tables shouldn't be able to crack all the passwords at once. But in case

block in replace_gem can't activate bcrypt-ruby (~> 3.0.0), already activated bcrypt-ruby-3.1.1

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问题 I've looked at several answers regarding this problem and none seem to do the trick. This is on windows and I am lost for ideas. Thanks for the help! C:/Ruby200/lib/ruby/gems/2.0.0/gems/bcrypt-ruby-3.0.1-x86-mingw32/lib/bcrypt_ext.rb:2:in require': cannot load such fil e -- 2.0/bcrypt_ext (LoadError) from C:/Ruby200/lib/ruby/gems/2.0.0/gems/bcrypt-ruby-3.0.1-x86-mingw32/lib/bcrypt_ext.rb:2:in ' from C:/Ruby200/lib/ruby/gems/2.0.0/gems/bcrypt-ruby-3.0.1-x86-mingw32/lib/bcrypt.rb:12:in `require

What is an alternative for bcrypt to use with node?

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问题 I have tried for days to get bcrypt installed on my windows machine with no luck. One of the dependencies (Windows 7 SDK) does not want to be installed even though I have tried numerous suggestions from around the net it just refuses to cooperate. I need a good alternative to bcrypt which does not have any dependencies. 回答1: Check out https://npmjs.org/package/bcryptjs, it's fully compatible with bcrypt just without the dependencies. Or https://npmjs.org/package/simplecrypt if you don't want

Web登录其实没你想的那么简单

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【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 1. 一个简单的HTML例子看看用户信息安全标准的HTML语法中，支持在form表单中使用<input></input>标签来创建一个HTTP提交的属性，现代的WEB登录中，常见的是下面这样的表单： <form action = "http://localhost:8080/Application/login" method = "POST"> 用户名：<input id="username" name="username" type="text" /> 密码：<input id="password" name="password" type="password" /> <button type="submit">登陆</button></form> form表单会在提交请求时,会获取form中input标签存在name的属性，作为HTTP请求的body中的参数传递给后台，进行登录校验。例如我的账号是user1，密码是123456，那么我在提交登录的时候会给后台发送的HTTP请求如下（Chrome或者FireFox开发者工具捕获，需开启Preserve log）：可以发现即便password字段是黑点，但是本机仍以明文的形式截获请求。 2. HTTP协议传输直接暴露用户密码字段在网络传输过程中

What column type/length should I use for storing a Bcrypt hashed password in a Database?

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问题 I want to store a hashed password (using BCrypt) in a database. What would be a good type for this, and which would be the correct length? Are passwords hashed with BCrypt always of same length? EDIT Example hash: $2a$10$KssILxWNR6k62B7yiX0GAe2Q7wwHlrzhF3LqtVvpyvHZf0MwvNfVu After hashing some passwords, it seems that BCrypt always generates 60 character hashes. EDIT 2 Sorry for not mentioning the implementation. I am using jBCrypt. 回答1: The modular crypt format for bcrypt consists of $2$ ,

What column type/length should I use for storing a Bcrypt hashed password in a Database?

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How reimplement BCryptPasswordHasher of django with postgres 9.1

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问题 I have a postgres 9.1 database that is used by both a django website and a application server. Currently, I use the old SHA1 authentication in both system, but will upgrade to bcrypt. I have this: CREATE OR REPLACE FUNCTION random_string(length INTEGER, OUT RETURNS TEXT) AS $$ BEGIN IF length < 0 THEN raise exception 'Given length cannot be less than 0'; END IF; RETURNS = libs.gen_salt('bf', length); END; $$ LANGUAGE plpgsql; CREATE OR REPLACE FUNCTION encryp_TEXT(_TEXT TEXT, OUT RETURNS TEXT