Try your hand at DEFCON 2012 decryption challenge

At the recently concluded DEFCON 20 conference in Las Vegas, attendees were presented with this decryption challenge by KoreLogic Security. Take their collection of encrypted password hashes and a bundle of encrypted files and see how many you can crack. File types are from various systems, including UNIX servers, Windows AD, LDAP servers, webapps, etc. […]

When FPGAs attack hashes

What could you do with an array of 15 FPGAs? Why not attack hashes! NSA@home is a fast FPGA-based SHA-1 and MD5 bruteforce cracker. It is capable of searching the full 8-character keyspace (from a 64-character set) in about a day in the current configuration for 800 hashes concurrently, using about 240W of power. The […]