Date: Wed, 6 Jan 2021 00:11:49 +0100 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: Cracking rar password with rar-opencl On Tue, Jan 05, 2021 at 11:15:12PM +0100, Anton Berggren wrote: > Attaching screenshot from GPU-Z for some better GPU information/data Screenshots are discouraged here, but yours does show that your GPU utilization is changing from none to full and back. Two sessions (running different attacks) or one session with "--fork=2" might help. Once again, most importantly you need to focus the search on candidate passwords that are actually likely given what you recall about the RAR archive password. That said, if you haven't done so yet, I suggest that you start with the RockYou list, which will complete (given the speeds you posted) perhaps in 2 hours: https://wiki.skullsecurity.org/Passwords (Given that RAR password cracking is so sensitive to password lengths, sorting/grouping the wordlist by length would likely improve speeds, but I guess is tricky for you to do. This may be more of a reminder for us to add this as a built-in feature for more JtR formats that need it.) Alexander
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