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Date: Sun, 20 May 2018 17:15:37 +0200
From: Solar Designer <>
Subject: Re: Unable to crack the password of a test rar file.

On Sun, May 20, 2018 at 03:56:07PM +0100, Eric Watson wrote:
> That edit sorted it!


> pi@...pberrypi:/var/share/temp/JohnTheRipper-bleeding-jumbo/run $ ./john 
> test_pswd.txt
> Using default input encoding: UTF-8
> Loaded 1 password hash (rar, RAR3 [SHA1 AES 32/32])
> Warning: OpenMP is disabled; a non-OpenMP build may be faster
> Press 'q' or Ctrl-C to abort, almost any other key for status
> 0g 0:00:00:21 0.18% 1/3 (ETA: 19:03:53) 0g/s 2.630p/s 2.630c/s 2.630C/s 
> Ttest_file.txt.rar..File

That's really awful speed.

You might want to see if there's any mention of emulated unaligned
accesses in the output of "dmesg".

> Would it be possible to build a non-OpenMP build?

Yes.  You do that with "./configure --disable-openmp".  But it will make
very little difference.

Is your Pi single-core?

> I have 3 allways on Pi's for various tasks and my next learning curve 
> will be having them all crack together.

This is easiest to do with the "--node" option.

> I think I have chosen the correct reply method in Linux Thunderbird.

It appears so.


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