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Password cracking. In cryptanalysis and computer security, password cracking is the process of guessing passwords [ 1] protecting a computer system. A common approach ( brute-force attack) is to repeatedly try guesses for the password and to check them against an available cryptographic hash of the password. [ 2]
Argon2. Argon2 is a key derivation function that was selected as the winner of the 2015 Password Hashing Competition. [ 1][ 2] It was designed by Alex Biryukov, Daniel Dinu, and Dmitry Khovratovich from the University of Luxembourg. [ 3]
Rainbow table. A rainbow table is a precomputed table for caching the outputs of a cryptographic hash function, usually for cracking password hashes. Passwords are typically stored not in plain text form, but as hash values. If such a database of hashed passwords falls into the hands of attackers, they can use a precomputed rainbow table to ...
Facebook stored hundreds of millions of users' passwords in a format easily readable by its employees for years, in the latest security scandal to hit the beleaguered Silicon Valley tech giant.
Systems that use passwords for authentication must have some way to check any password entered to gain access. If the valid passwords are simply stored in a system file or database, an attacker who gains sufficient access to the system will obtain all user passwords, giving the attacker access to all accounts on the attacked system and possibly other systems where users employ the same or ...
With all of the concern swirling around Facebook and privacy, many users don't take one of the most crucial steps for social networking safely and responsibly -- using a strong password. Facebook ...
4. Click the Passwords tab. 5. Select 'Offer to save passwords I enter on the web'. 6. Exit out of the Settings window. To disable the Password Manager, follow the same steps as above but de-select the box next to 'Offer to save passwords I enter on the web'. Search your saved passwords 1. Log in to AOL Desktop Gold. 2. Click the Settings icon. 3.
Key stretching. In cryptography, key stretching techniques are used to make a possibly weak key, typically a password or passphrase, more secure against a brute-force attack by increasing the resources (time and possibly space) it takes to test each possible key. Passwords or passphrases created by humans are often short or predictable enough ...