An online password generator/decoder for the Mega Man games, Castlevania 2, Metroid, Solar Jetman, the Guardian Legend, Faxanadu, and Battle of Olympus. Pick the options you want and it'll build you a password. Type in a password and it'll show you what it means.
A Windows password cracker that uses rainbow tables. A LiveCD is also available.
Password hashes that may be freely downloaded to stage memory/time tradeoff attacks.
A database of manufacturers of home office routers and their default login credentials.
A next-generation brute-force login cracker for many different applications and operating systems. Runs as a multi-threaded application for efficiency. Uses a modular system to implement new authentication protocols and application connectors.
A massive online database of default passwords for networking hardware, embedded devices, and operating systems.
A utility used to extract user credentials and other secrets from the Windows registry hives offline.
A free utility for Windows that extracts your wireless keys in case you forget them.
An offline method of generating passwords using a randomized matrix of characters. You pick out your password by remembering a symbol, a color, and a direction. Much easier to use than it sounds.
An open source brute-force passphrase cracker for attacking Truecrypt volumes. Can attack volumes that use the RIPEMD160 and AES-XTS cryptosystems by either throwing a dictionary at it or by generating pseudorandom passphrases from a user-defined set of characters. CUDA-aware, so nVidia graphics cards can be used to accelerate the process.
How to configure password complexity on Redhat Linux machines (and its derivatives). After playing with it for a while, I'd call this a best practice because it requires all of the different character classes but doesn't give you bonus points for using any one (i.e., you have to use them all, but they could the same insofar as character scoring is concerned).
The 60 passwords used by all of the IoT devices that comprise the Mirai botnet.
An implementation of Scrypt as a pure python module. No external dependencies. Tunable. Ideal for storing passwords and suchlike. I wouldn't use this for an enterprise app but for a relatively simple app that won't have a thousand people per second logging in (maybe ten?) it'd be useful.
A utility that cracks BIOS passwords.
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