Date: Tue, 16 Sep 2008 06:56:56 +0400 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: jumbo patch for 22.214.171.124 Hi, I've released revision 3 and revision 4 of the jumbo patch for 126.96.36.199 yesterday. Revision 3 went under historical/ right away - the reason why I released it at all was for "revision control" purposes, as well as to have some better-tested / fallback code to recommend to those who might report serious problems introduced with revision 4, if any. Compared to revision 2, released back in August, revision 3 corrects two problems reported via this mailing list: The "duplicate guesses" bug introduced with john-188.8.131.52-all-2 and reported by Adam Turk (the fix is exactly the same as john-184.108.40.206-all-2-lpsfix1.diff, which I posted before). The issue with non-guaranteed alignment for "static" variables under Cygwin, reported/confirmed by Random Intentions and SmarTeam Support. Revision 4 adds: Support for HTTP Digest Access Authentication by Romain Raboin: http://www.openwall.com/lists/john-users/2008/08/27/2 Support for OpenLDAP SSHA password hashes, extracted out of myjohn.tgz by bartavelle. "Markov" cracking mode, also extracted out of myjohn.tgz by bartavelle, which he nicely documented at: http://openwall.info/wiki/john/markov All three of these additions include minor changes / bug fixes by me. However, this time the patch was only tested on a few Linux systems, so it is fairly likely that other issues with these three additions will pop up when people start using it on non-Linux. On Mon, Aug 25, 2008 at 10:10:08AM +0200, Simon Marechal wrote: > The reason why i keep "my" tree public is that it's too tedious to > produce clean patches, due to all the specific tweaks only I use. > However, if you only want specific parts I could produce a proper patch. Thank you! As you have figured out from the above, I decided to pull whatever I reasonably could out of your myjohn.tgz myself. > Currently, here are the differences between my stuff and the jumbo patch > I know of: > * probably less stable Yes, I've fixed plenty of issues with your code that would result in misbehavior in various cases (mostly on non-x86). > * less ciphers supported, only tested with x86, x64 linux Yet you had OPENLDAPS_fmt.c, which was not in the jumbo patch until now. With that corrected, you still have these extras: domino4_fmt.c, domino5_fmt.c, domino_md.*, and the corresponding code in x86.S - I'm not sure how this compares to lotus5_fmt.c and DOMINOSEC_fmt.c, which are in the jumbo patch. Do these implement support for the exact same two things or not? How does said support differ - in terms of both functionality and performance? tightvnc_fmt.c - unused, and it looks unfinished - is that the case? Is this something to consider for inclusion (after it is made to work)? > * markov-chains based password generator, and associated utilities Right. This is now imported into 220.127.116.11-all-4. I dislike the way the Makefile is hacked to build the extra utilities, though. > * usage of the SSE functions when they are available Can you possibly identify those cases where you have optimized assembly code and the latest jumbo patch does not - and post a list in here, or maybe submit a patch (to be applied on top of the jumbo patch) right away? > * a shortcut for the netlm cipher (part of the original LM hash could be > bruteforced. It could be possible to crack it almost as fast as the > original LM hash) Where is this hack found in your code, exactly? Is there any info on it that would enable people to use it? > * an optimized "old lotus" implementation for x86 Yes. I will probably want to have this in the jumbo patch if it really is faster. > * some tweaks which i find useful, such as printing the lines that have > not been found when doing -show This specific one is not acceptable as-is because it is a significant change of program behavior and there's no option to turn it on or off. IIRC, someone included a cleaner implementation in a patch announced in here, but I was not merging stuff into the jumbo patch myself at the time, so it was not included... I would probably be OK with merging a patch that would enhance the --show option with some parameters, leaving the default behavior intact. The same goes about the long-standing request for selecting a wordlist ruleset to use from the command-line. While the official JtR might implement these things in a different and incompatible fashion eventually, I am fine with having a "temporary" implementation in the jumbo patches. I can't comment on other "tweaks" in myjohn.tgz because I don't know what they are (and I am too lazy to review and make sense of all the changes now, especially given that some changes are unintentional). > I believe that the most useful thing that I have and that is not part of > the jumbo patch is the markov generator, which is more effective than > -inc (for my usage, and especially for slow ciphers) and let you > manually but easily distribute work. OK, this one has been merged. :-) Thanks, Alexander -- To unsubscribe, e-mail john-users-unsubscribe@...ts.openwall.com and reply to the automated confirmation request that will be sent to you.
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