password-hash

问题 Just now I'm working in a financial project. Here, the team is thinking to use MD5 for password hashing . But, today is easy copy a SHA1 or MD5 password to decrypt, inclusive if they are complex password like: My$uper$ecur3PAS$word+448 , you might use a online page to decrypt it and there is it. Small and mid-range developers (including me) uses those hashing methods , but I think is not enough to provide security over the database. (Excluding firewalls , network security , iptables , etc.).

问题 I want to make an login system with password verify. I have encrypted my password with password default. I also stored the hash in the database. Now I want to use password verify to make an login system, but the function always reteruns a value of true. can someone explains why? And can someone explain me how I can use password verify with $_POST? code for the hash <?php /** * Created by PhpStorm. * User: jbosma * Date: 24/07/2018 * Time: 23:21 */ include_once "dbconnection.php"; if (isset($

问题 I am a noob in algorithms and not really so smart. But I have a question in my mind. There are a lot of hashing algorithms available and those might be 10 times more complex than what I wrote, but almost all of them are predictable these days. Recently, I read that writing my own hashing function is not a good idea. But why? I was wondering how a program/programmer can break my logic that (for example) creates a unique hash for each string in 5+ steps. Suppose someone successfully injected a

问题 How do I check if a user entered password matches a password that has been hashed and stored into a database by somebody else. Normally you would use this right?: bool value = BCryptHelper.CheckPassword("Tom123", passwordHash); So what if you don't have the passwordHash variable which contains the hashed password? I don't have a great understanding of how BCrypt works so I think I am missing something very simple. 回答1: Here is a hint to the answer. You can follow the link for further detailed

问题 On crackstation.net it is stated: To Validate a Password Retrieve the user's salt and hash from the database. Prepend the salt to the given password and hash it using the same hash function. Compare the hash of the given password with the hash from the database. If they match, the password is correct. Otherwise, the password is incorrect. However in the source code listed at the bottom of the page, I can't figure out how the validate_password function takes into account the salt. I mean where

问题 I have setup my password hashing using PHP password_* functions 1) password_hash($password, PASSWORD_BCRYPT, array("cost" => 11); 2) return password_verify($password, $hashedPassword)? true : false; Everything work fine. I found also password_needs_rehash() function, which tak 2 params, $hashedPassword and algorithm, example: password_needs_rehash($hashedPassword, PASSWORD_BCRYPT); I understand to use this when it's changed algorithm or cost, something like: if (!password_verify($password,

问题 I have a Spring Boot application (code here) with a security configuration that utilizes a BCryptPasswordEncoder: @Bean public PasswordEncoder passwordEncoder() { return new BCryptPasswordEncoder(); } I'd like to pre-generate a couple of passwords to initialize my database, for testing or for logging in on a developer machine. (Not for production.) My database is PostgreSQL and the schema is based on the Spring Security default schema, with a users table and an authorities table. My SQL

问题 This code always returns wrong username and password though its right and same function works for my admin login system. It worked some time ago, and now it won't. function login($user,$pass,$accountType){ require('connection.php'); $result=mysqli_query($con,"select * From $accountType"); $regex="/^([a-zA-Z0-9])+([a-zA-Z0-9\._-])*@([a-zA-Z0-9_-])+([a-zA-Z0-9\._-]+)+$/"; if(preg_match($regex, $user)){ if(mysqli_num_rows($result)>0){ while($row=mysqli_fetch_assoc($result)){ $username=$row[

问题 About passwords encryption in liferay I found out that liferay is using PBKDF2WithHmacSHA1/160/128000 algorithm by default which generates 160 bit hashes using 128,000 rounds. And I can use the following types by applying them in my portal-ext.properties file #passwords.encryption.algorithm=BCRYPT/10 #passwords.encryption.algorithm=MD2 #passwords.encryption.algorithm=MD5 #passwords.encryption.algorithm=NONE #passwords.encryption.algorithm=PBKDF2WithHmacSHA1/160/128000 #passwords.encryption

问题 i have the following function that hashes a password and stores it in a database. i am trying to use the password_hash function in php 5.5 but its giving me weird results. function hashpass($password) { include("includes/config.php"); $password = password_hash($password, PASSWORD_DEFAULT); return $password; } I then output the result for the same static password which i am just testing as "testpassword" and it keeps giving me different hashes. Why is that? if it keeps doing that i will never