Nytro Posted February 11, 2016 Report Posted February 11, 2016 Viper Frank4DD, @ May 2000 Viper is a prute force UNIX-style password cracker for passwords encrypt with crypt. It has been developed from Hale's viper 1.4 Perl program. While there are other more powerful crack programs out, this one is about studying the safety of passwords while hardware speed is increasing drastically. If I remember right, I read that on a PDP-11 the password generation took 30 seconds. Now we can do more then 230.000 generations per second on a single CPU core of a single system, increasing speed by a factor of several million. Still, there is some time to go for a 8-character password on full keyspace, see keyspace.txt. Originally, the ufc-crypt implementation seemed to be the fastest crypt function around, using it made porting the program to different platforms easy. Viper runs under Linux, Solaris, HPUX and DOS/Windows. Link: https://github.com/fm4dd/viper?platform=hootsuite Quote