Date: Thu, 4 May 2017 18:25:04 +0200 From: magnum <john.magnum@...hmail.com> To: john-users@...ts.openwall.com Subject: Re: How long to recover RAR3 SHA-1 AES [32/64] hash pwd On 2017-05-02 01:02, Nick Wilsdon wrote: > I'm trying to recover a password to an old .rar file - RAR3 SHA-1 AES > [32/64] > > It's possibly up to 10 characters, lower-case alpha-numeric. I've been > trying incremental mode, as my wordlists and guesses haven't worked (7 days > so far) > > Looking at tools like - http://calc.opensecurityresearch.com/ - that seems > to indicate this approach can potentially take 2.4m years. Can anyone > confirm, before I build Deep Thought and pass on instructions to future > generations?* That would be correct if you run it on a single, slow, CPU core (about 50 c/s). Newer high-end ones should do twice of that or more. Using a GPU or better yet several of them would speed it up substantially but even a 1000x boost wont help from 2.4 million years of course. > *or perhaps, go back to learning more about masks If it's a truly random password, you're simply out of luck. If it's not, with a good GPU you'll get a 1000x boost so you can try larger wordlists or more permutations. magnum
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