Date: Fri, 1 Feb 2013 17:58:44 +0100 From: magnum <john.magnum@...hmail.com> To: john-dev@...ts.openwall.com Subject: Re: NTLMv1 and MSCHAPv2 (was: NetNTLMv1) On 1 Feb, 2013, at 11:51 , Solar Designer <solar@...nwall.com> wrote: > On Fri, Feb 01, 2013 at 07:24:22AM +0400, Solar Designer wrote: >> Anyhow, I've attached a patch that tries to speedup cmp_all() by use of >> a bitmap. > > There's a bug in that patch: the mem_alloc_tiny() call for bitmap > allocation should be changed to mem_calloc_tiny(). > > I initially had a memset() in crypt_all(), but later #if 0'ed it out in > favor of another approach - but forgot that the bitmap was not zeroized > in init(). This needs to be corrected (as above). Fixed. I have also merged the same exploit and SIMD code to MSCHAPv2. That format is very similar - in JtR all main functions are identical except get_salt() so this was very wasy. Actually we should wrap them in the same source file so we don't need to incorporate the same optimizations to both formats in the future. Jumbo-7 vs. current code: Benchmarking: MSCHAPv2 C/R MD4 DES [32/64]... DONE Many salts: 3902K c/s real, 3902K c/s virtual Only one salt: 2727K c/s real, 2727K c/s virtual Benchmarking: MSCHAPv2 C/R MD4 DES [128/128 SSE2 intrinsics 12x]... DONE Many salts: 1068M c/s real, 1068M c/s virtual Only one salt: 39541K c/s real, 39541K c/s virtual Benchmarking: NTLMv1 C/R MD4 DES (ESS MD5) [32/64]... DONE Many salts: 3895K c/s real, 3895K c/s virtual Only one salt: 2722K c/s real, 2722K c/s virtual Benchmarking: NTLMv1 C/R MD4 DES (ESS MD5) [128/128 SSE2 intrinsics 12x]... DONE Many salts: 1129M c/s real, 1129M c/s virtual Only one salt: 37917K c/s real, 37917K c/s virtual BTW these figures are without AVX because apparently the OSX assembler doesn't have a clue about such things, so using a real gcc does not help. That is just ridiculous. magnum
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