ftable.py arguments

[yulianaalich]

Hi
I was wondering what the arguments[ -s num ] and [ -p num ] mean in the command
$ python ftable.py [ -v ] [ -s num ] [ -p num ] [ infile [ outfile ] ]

Thanks!

[nytr0gen]

• -s num is skip. so it skips the first num characters. e.g. you have the string abcdefg and use -s 2 it will use only cdefg
• -p num is period. it's useful if you think the encrypted text uses something like vigenere (encryption system with a fixed-length key). default period is 1. e.g. on input ababab and -p 2 it will use aaa. on -s 1 -p 2 it will use bbb

you can read more about this here - https://github.com/sdsunjay/kasiski/blob/master/asgn1.pdf