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Message-ID: <20120831233037.GA16291@openwall.com>
Date: Sat, 1 Sep 2012 03:30:37 +0400
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: Trouble getting started - can anyone offer advice? (now solved)
On Wed, Aug 29, 2012 at 03:20:51PM +0100, colin wright wrote:
> libssl-dev now installed, problem solved using jumbo.
> Vanilla version still doesn't work, unrecognised format.
Now this is obvious:
> $ ./john --format=crypt mypasswd
> Unknown ciphertext format name requested
[...]
> $ make clean generic
Perhaps you were building the vanilla version as "generic" as well.
This cripples it down, both in terms of speed and functionality. When
you're on Linux, you should be using one of the linux-* make targets
(probably linux-x86-64 on 64-bit or linux-x86-sse2 on 32-bit).
You'll also want to enable OpenMP by uncommenting one of the OMPFLAGS
lines in the Makefile.
Finally, you might want to be aware that jumbo's --format=sha512crypt is
about 30% faster than --format=crypt (your system's crypto code). Both
support OpenMP (when enabled).
I hope this helps.
Alexander
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