password-hash | 易学教程

How to use password_hash Register And Login

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问题 I'm trying to figure out how to use password_hash on register and login systems. Currently I'm using password_hash like this to register my users. $pass = $_POST['Pass']; $hashed_password = password_hash($pass, PASSWORD_DEFAULT); $stmt = $conn->prepare("INSERT INTO `usuario`(`Nick`, `Nombre_u`, `Apellidos`, `e-mail`, `Password`, `Domicilio`, `Colonia`, `Codigo_Postal`, `Cuidad`, `Estado`, `Telefono`) VALUES (?, ?, ?, ?, ?, ? , ?, ?, ?, ?, ?)"); $stmt->bind_param( "sssssssisss", $nick, $nombre

Decrypt method from encryption function

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问题 I have a method that is used to encrypt the password and store it to database as below : public static string Md5Encrypted(string password) { byte[] pass = Encoding.UTF8.GetBytes(password); MD5 md5 = new MD5CryptoServiceProvider(); string strPassword = Encoding.UTF8.GetString(md5.ComputeHash(pass)); return strPassword; } Now I want the method that decrypt the password that I get from database which was encrypted by above method while storing it. I don't know how to make it. Anybody can help

Password hashing not working in php mysql

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问题 I am trying to use password hashing using phpmysql. The issue is password_verify does not seem to work for me so far. Say, my password during registration is '123456789'. I stored it in database using password_hash('123456789', PASSWORD_BCRYPT, array('cost' => 12)); And then when I enter '123456789' in the login field, it does nothing, fails. Here is my code: <?php session_start(); include('db.php'); ?> <!DOCTYPE html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

PasswordHash not working with CodeIgniter

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问题 I have put the files I downloaded from http://www.openwall.com/phpass/ to application/libraries In my controller, I am using this code - $params = array( 'phpass_hash_strength' => 8, 'phpass_hash_portable' => FALSE ); $this->load->library('PasswordHash', $params); $password = $this->passwordhash->HashPassword($pwd); I am getting these errors - A PHP Error was encountered Severity: Notice Message: Uninitialized string offset: 3 Filename: libraries/PasswordHash.php Line Number: 116 A PHP Error

Why is php's password_hash so slow?

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问题 I am using password_hash for password encryption. However there is a strange question, password_hash cost very long time. Here is a sample code. this code will cost more than 1 second. Is that normal? <?php $startTime = microtime(TRUE); $password='123456'; $cost=13; $hash=password_hash($password, PASSWORD_DEFAULT, ['cost' => $cost]); password_verify($password,$hash); $endTime = microtime(TRUE); $time = $endTime - $startTime; echo $time; ?> the result is :1.0858609676361 回答1: After running on

How does PHP's password_hash generate the salt?

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问题 Hello as you may know PHP recently introduced password_hash built-in in latest versions. The documentation says: If omitted, a random salt will be created and the default cost will be used. The question is what kind of method does it use to add the salt? I'm interested because I'd like to know if the salt is created randomly so that when I store my hashed passwords they are always unique . 回答1: The salt is created randomly. They should be statistically unique. To see how, check out the C

What is currently the most secure one-way encryption algorithm?

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问题 As many will know, one-way encryption is a handy way to encrypt user passwords in databases. That way, even the administrator of the database cannot know a user's password, but will have to take a password guess, encrypt that with the same algorithm and then compare the result with the encrypted password in the database. This means that the process of figuring out the password requires massive amounts of guesses and a lot of processing power. Seeing that computers just keep getting faster and

Mysql password hashing method old vs new

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问题 I'm trying to connect to a mysql server at dreamhost from a php scrip located in a server at slicehost (two different hosting companies). I need to do this so I can transfer new data at slicehost to dreamhost. Using a dump is not an option because the table structures are different and i only need to transfer a small subset of data (100-200 daily records) The problem is that I'm using the new MySQL Password Hashing method at slicehost, and dreamhost uses the old one, So i get $link = mysql

Best Practices: Salting & peppering passwords?

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问题 I came across a discussion in which I learned that what I'd been doing wasn't in fact salting passwords but peppering them, and I've since begun doing both with a function like: hash_function($salt.hash_function($pepper.$password)) [multiple iterations] Ignoring the chosen hash algorithm (I want this to be a discussion of salts & peppers and not specific algorithms but I'm using a secure one), is this a secure option or should I be doing something different? For those unfamiliar with the

PHP: Does password_hash() check if the hash generated is unique? (Understanding!)

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问题 Simple question because i did not find a really helping answer on google: Does the password_hash() function also check if there is already such a hash generated for instance in the userdata file? I basically get what the function is doing, but i am fairly new to php, so i was not really able to see if the password is checked for uniqueness. Please be gentle on this noob question right here. I simply want to understand what i am using right there, and not only do it because my exercise sheet