hsubgen - A program for generating and testing hsub's (Hashed Subjects) Usage:- hsubgen <key> Generate a valid hsub using the provided key hsubgen [-l int] <key> Generate a valid hsub with a length of 32 to 80 characters. The default setting is 48 characters. hsubgen <key> <subject> Validate the subject using key. A valid hsub will cause the program to terminate successfully with exit status 0.