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Date: Mon, 16 Jan 2012 14:52:39 +0100
From: Samuele Giovanni Tonon <>
Subject: Re: using john-1.7.9-jumbo-5 for sha1 passwords

On 01/16/12 10:38, Ramprasad Prasad wrote:
> I want to use john for cracking sha1 passwords is that possible ?
> I am using   perl function  Digest::SHA::sha1_base64  for generating
> passwords
> $ perl -MDigest::SHA -le 'print "user:".Digest::SHA::sha1_base64($ARGV[0])'
> password > pass1
> But decrypting does not work
> $ ./john  --format=sha1-gen pass1
> No password hashes loaded (see FAQ)
> $ ./john  --format=raw-sha1 pass1
> No password hashes loaded (see FAQ)

raw-sha1 works on hexadecimal string not on base64.

perl -MDigest::SHA -le 'print "user:".Digest::SHA::sha1_hex($ARGV[0])'

will work with raw-sha1.

sha1-gen will work for password like



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