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Date: Wed, 4 Dec 2013 07:02:25 -0500
From: Rich Rumble <richrumble@...il.com>
To: john-users@...ts.openwall.com
Subject: Re: jtr newbie: getting no hashes loaded message
On Tue, Dec 3, 2013 at 11:56 PM, Donald Raikes <evhadu@...look.com> wrote:
> Hello,
> I am working on a class assignment in which we were given a password file containing the following:
> username:base64_encoded sha256 hashed salted password:salt
What version of John are you using? You'll need a Jumbo version for
this to work, and you'll have to decode the Sha256 to HEX rather than
base-64
http://www.openwall.com/lists/john-users/2012/06/24/6
#!/usr/bin/env python
import base64, sys, os
while True:
line = sys.stdin.readline()
if line == "":
break
line = line.rstrip(os.linesep)
print "$SHA256$" + base64.b64decode(line + "=" * (4 -
(len(line)&3))).encode("hex")
Call that script above (named p.py)like so:
cat my-old-hashes.txt | python ./p.py > my-new-hashes.txt
john --format=raw-sha256 my-new-hashes.txt
That should get it cracking!
> I get garbage displayed on the screen as though it had "cracked" some passwords but the passwords contained non-printable characters.
>
Can you post any of that output?
> Is there a sample sha256 password file I could use to test my installation of john?
http://openwall.info/wiki/john/Generating-test-hashes
http://pentestmonkey.net/cheat-sheet/john-the-ripper-hash-formats
username:5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8
I'm not sure about salts, not sure those are Raw-sha256... I'm no expert.
user:5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8
password
user:LcV6aBcc/53FoCJjXQMd7rBUDEpeevrK8V5jQVoJEhU
password
user:ef797c8118f02dfb649607dd5d3f8c7623048c9c063d532cc95c5ed7a898a64f
12345678
user:E3B0C44298FC1C149AFBF4C8996FB92427AE41E4649B934CA495991B7852B855
user:OsOmQzwozC4ROs/CzpczJoShdCeW9lp7k/tGrPS5Kog
1
-rich
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