salt

After reading here a bit about salting passwords, it seems that it's best to use a unique salt for each user. I'm working on implementing Flask-Security atm, and from the documentation it appears you can only set a global salt: ie SECURITY_PASSWORD_SALT = 'thesalt' Question: How would one go about making a unique salt for each password? Thanks! edit: from the docs on Flask-Security, I found this, which seems to again suggest that this module only uses a single salt for all passwords out of the box. flask_security.utils.get_hmac(password) Returns a Base64 encoded HMAC+SHA512 of the password

I was here yesterday and got some really great answers. I took what I got and put together, what I think will be a fairly secure algorithm. I'm having a problem using blowfish with a for loop that generates the salt. I'm using base64 characters and a for loop to get a random string. I want to take this generated string and insert it into the crypt function as the salt. Because the documentation about blowfish is so sparse and the PHP docs don't really even mention it, I'm sort of stabbing in the dark here. The really strange thing is if you run this code the way it is now, it will not fail.

I just learned the concept of hashing ("Hey! don't forget the salt!") and using salt to make the password secured. Hashing it is a one way encryption (actually not encryption but hashing) so it cannot be reversed engineered. Salting is prefixing or appending randomly created values to the password before hashing 'coz the problem in hashing (just hashing) is, some genius has provided a hash table of words from the dictionary so that they'll just compare the hash from that dictionary to the user's table from the database to login - W-wait? did I say table from the database? So it means somebody

From what I understand from salting to make an encrypted password more secure, I would generate a random number (the salt) and store it along side the hashed password, in the user record (for example.) I would concatenate the salt with the plaintext password and then encrypt it (hash). The resulting hash would be much more difficult to crack. This process would be repeated to verify the password. Looking at has_secure_password and bcrypt_ruby (disclosure: I am not a security expert) I don't see how that is done, as the only thing stored in the user record is the hashed password. Where's the

I stored salt and hash values of password during user registration... But during their login i then salt and hash the password given by the user, what happens is a new salt and a new hash is generated.... string password = collection["Password"]; reg.PasswordSalt = CreateSalt(6); reg.PasswordHash = CreatePasswordHash(password, reg.PasswordSalt); These statements are in both registration and login.... salt and hash during registration was eVSJE84W and 18DE22FED8C378DB7716B0E4B6C0BA54167315A2 During login it was 4YDIeARH and 12E3C1F4F4CFE04EA973D7C65A09A78E2D80AAC7 ..... Any suggestion....

I'm creating a custom "add user" page in ASP.Net web forms and have hit a problem. I can insert all the data into the membership table but the passwords are stored in plain text and the password salt has been hardcoded. How do i go about hashing the passwords so that users can log in (as the membership framework checks for a password hash and not a clear text password). Also, is the salt completely random or is it linked to the password hash somehow? Any help would be greatly appreciated, Marc <membership defaultProvider="SqlProvider" userIsOnlineTimeWindow="15"> <providers> <clear /> <add

I want to store secure user passwords in a MySQL database with PHP. How can I make it better? My Class: private static $algo = '$2a'; private static $cost = '$10'; private static $pepper = 'eMI8MHpEByw/M4c9o7sN3d'; public static function generateSalt($length) { $randomBinaryString = mcrypt_create_iv($length, MCRYPT_DEV_URANDOM); $randomEncodedString = str_replace('+', '.', base64_encode($randomBinaryString)); return substr($randomEncodedString, 0, $length); } public static function generateHash($password) { if (!defined('CRYPT_BLOWFISH')) die('The CRYPT_BLOWFISH algorithm is required (PHP 5.3)

I want to use PasswordDeriveBytes(RSA PBKDF1) of .NET 2.0 within iPhone. How could i achieve the same exact implementation? Are there any methods or libraries for it? I especially want it for using a salt. Thanks Since MS implementation is not totally following the PKCS#5 specification the easiest way would be to convert Mono (C#) source code into Objective C. That will get you very close to MS implementation (everything except a very bad bug :-). In any case I suggest you stick to the specification (don't get more bytes that what it's designed to provide). https://raw.github.com/mono/mono