password-hash

问题 I\'ve updated the code and the script is still returning the \"Fail.\" message. I must be missing something, I\'ve taken everyone\'s advice. That or I\'m just plain stupid LOL! Here\'s the updated code: require(\'../connect.php\'); $username = $_POST[\'username-sign-in\']; $password = $_POST[\'password-sign-in\']; if true then exit() for { empty($username); empty($password); } if (isset($username, $password)) { $getuser = $connection->prepare(\'SELECT `username`, `password` FROM `users` WHERE

问题 When the user register on the site , and I look in the database joomla_users in the password table, there are password stored in the following formats: $P$Do8QrURFT1r0NlWf0X/grdF/aMqwqK/ $P$DH38Lch9z508gJiop3A6u0whTity390 ........ But not in the form as described in the documentation (MD5 + \":\" + SALT): 1802ebc64051d5b4f4d1b408babb5020:0PHJDbnsyX05YpKbAuLYnw2VCzFMW2VK I need to have this clarified for me, because I\'m using outside script that checks for user credentials to check for

问题 Why does password_verify return false? This question is intended to be canonical and has been created simply based on the amount of questions that have been asked on this topic. 回答1: There are a variety of reasons why password_verify could be returning false, it can range from the setup of your table to the actual comparing of the password, below are the common causes of it failing. Column Setup The length of the password column in your table is too short: If you are using PASSWORD_DEFAULT

问题 Possible Duplicate: About password hashing system on client side I have to secure the passwords of my web site users. What I did was use MD5 encryption hashing in server side. But the problem is the passwords remain in plain text until it arrives at the server, which means that the password can be captured using traffic monitoring. So what I want is to use a client side password encryption/hashing mechanism and send the encrypted/hashed password. Can anybody tell what is the way to do this?

问题 My code is actually working but it\'s not at all secure, I don\'t want to use MD5 as it\'s not all that secure. I\'ve been looking up password hashing but I\'m not sure how I would incorporate it into my code. Login: require_once __DIR__.\'/config.php\'; session_start(); $dbh = new PDO(\'mysql:host=\' . DB_HOST . \';dbname=\' . DB_USERNAME, DB_USERNAME, DB_PASSWORD); $sql = \"SELECT * FROM users WHERE username = :u AND password = :p\"; $query = $dbh->prepare($sql); // prepare $params = array(

问题 Recently I have been trying to implement my own security on a log in script I stumbled upon on the internet. After struggling of trying to learn how to make my own script to generate a salt for each user, I stumbled upon password_hash. From what I understand (based off of the reading on this page: http://php.net/manual/en/faq.passwords.php), salt is already generated in the row when you use password_hash. Is this true? Another question I had was, wouldn\'t it be smart to have 2 salts? One

问题 Is hashing a password twice before storage any more or less secure than just hashing it once? What I\'m talking about is doing this: $hashed_password = hash(hash($plaintext_password)); instead of just this: $hashed_password = hash($plaintext_password); If it is less secure, can you provide a good explanation (or a link to one)? Also, does the hash function used make a difference? Does it make any difference if you mix md5 and sha1 (for example) instead of repeating the same hash function?

问题 How much more safe is this than plain MD5? I\'ve just started looking into password security. I\'m pretty new to PHP. $salt = \'csdnfgksdgojnmfnb\'; $password = md5($salt.$_POST[\'password\']); $result = mysql_query(\"SELECT id FROM users WHERE username = \'\".mysql_real_escape_string($_POST[\'username\']).\"\' AND password = \'$password\'\"); if (mysql_num_rows($result) < 1) { /* Access denied */ echo \"The username or password you entered is incorrect.\"; } else { $_SESSION[\'id\'] = mysql