[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-ID: <4F905614.9080001@gmail.com>
Date: Thu, 19 Apr 2012 15:14:44 -0300
From: Claudio André <claudioandre.br@...il.com>
To: john-dev@...ts.openwall.com
Subject: Format readme?
/Hi, i was thinking about an explanation about the format. See below an
idea.
Do you guys have a place where it makes sense?
---- (formatted text)
John can crack SHA-512 on OpenCL enabled devices. To use it, try:/
* john --format=/*cryptsha512-opencl*///[other options]//
/The maximum password lenght is: 16 bytes./
/The maximum salt lenght is: 16 bytes./
/In order to change these limits, anyone can open the
opencl_cryptsha512.h, modify statements seen below and recompile the
project.//Note that some memory mis-alignment could lead to wrong
computation results./
/#define SALT_SIZE 16 /
/#define PLAINTEXT_LENGTH 16/
1. /This software was tested using, basically:/
* /Radeon HD 6770 (Juniper)/
* /AMD Phenom(tm) II X6 1075T Processor/
* /SDK 2.6 OpenCL 1.1 AMD-APP (898.1)/
* /Catalyst 12.2/
* 8.95-120214a-134397C-ATI
* /Ubuntu 11.10 x86_64/
/Not sure how it will behave under different hardware and software
conditions. See more information at /http://www.golubev.com/blog/?p=223
2. /Pay special attention to how the work is going to be
divided/organized. It means that some time should be //spent //to
select the work-group size and the threads number (LWS and KPC sizes)./
3. /The source code seems to be better suited to Southern Islands
products. See section 4.16 in Optimization Guidelines for Southern
Islands GPUs [1]./
/[1] -- //link
<http://developer.amd.com/sdks/amdappsdk/assets/AMD_Accelerated_Parallel_Processing_OpenCL_Programming_Guide.pdf>//,
visited in 04/19/2012./
Content of type "text/html" skipped
Powered by blists - more mailing lists
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
