Date: Sat, 07 Mar 2015 21:32:17 +0300 From: Alexander Cherepanov <ch3root@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: Any advice on how to fuzz john jumbo by AFL On 2015-03-07 19:22, Kai Zhao wrote: >> How much exec/sec do you get with unmodified/modified john in afl? How >> much total paths discovered? > > Both total execs and total paths are 41. AFL shows "total execs : 41" in the "stage progress" part of its status screen after 6 hours of work? That's definitely wrong. "total paths : 41" is possible if you took one simple hash as input. In case of john, afl cannot jump from a hash for one format to a hash for another format because most formats have specific tags in their hashes. You have to either take hashes for all formats or prepare a dictionary of all tags (afl-fuzz -x). > I modified john by comment the function john_run() in "src/john.c" in order > to just fuzz the john_init() function which involves format valid. That's nice. > On Sun, Mar 8, 2015 at 12:12 AM, Alexander Cherepanov <ch3root@...nwall.com> > wrote: > >> On 2015-03-07 16:22, Kai Zhao wrote: >> >>> Hi, I fuzzed john jumbo two days but without find any crashes. The fuzz >>> result indicates that john jumbo is robust or my fuzz test go somewhere >>> wrong place. Please don't include a full copy of the email you are replying to unless it's necessary for some reason. -- Alexander Cherepanov
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