Date: Wed, 6 Feb 2013 18:03:28 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: NTLMv1 and MSCHAPv2 On Tue, Feb 05, 2013 at 08:24:40PM +0100, magnum wrote: > Sure thing, somehow I misread what you wrote. This is now fixed, threshold is 100 c/r pairs and this is printed: > > > netntlm: Note: slow loading. For short runs, try netntlm-naive instead (using > --format=netntlm-naive). That version loads faster but runs slower. > > > MSCHAPv2 got the same fixes too. Great. Now should we adjust the format_name or algorithm_name for the naive formats to indicate that they're naive (and different from the newly sped up ones)? I think we should. Any specific suggestions? Also, there's a problem on archs requiring alignment (and maybe a slowdown on others). On 32-bit SPARC: Benchmarking: MSCHAPv2 C/R MD4 DES [32/32]... Bus error Benchmarking: NTLMv1 C/R MD4 DES (ESS MD5) [32/32]... Bus error The fix is to change 21 to 22 on this line: static uchar (*crypt_key); // NT hash in both formats. 21 guarantees misalignment for 16-bit accesses to every other crypt_key element. 22 guarantees 16-bit alignment, as long as the first element is aligned (and this is guaranteed by other means). Benchmarks in qemu-system-sparc on bull, with JtR unstable-jumbo patched as above and built with: gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21) New: Benchmarking: MSCHAPv2 C/R MD4 DES [32/32]... DONE Many salts: 28033K c/s real, 28033K c/s virtual Only one salt: 128760 c/s real, 128760 c/s virtual Naive: Benchmarking: MSCHAPv2 C/R MD4 DES [32/32]... DONE Many salts: 102400 c/s real, 102400 c/s virtual Only one salt: 46384 c/s real, 46384 c/s virtual New: Benchmarking: NTLMv1 C/R MD4 DES (ESS MD5) [32/32]... DONE Many salts: 27577K c/s real, 27577K c/s virtual Only one salt: 124704 c/s real, 124704 c/s virtual Naive: Benchmarking: NTLMv1 C/R MD4 DES (ESS MD5) [32/32]... DONE Many salts: 106455 c/s real, 106455 c/s virtual Only one salt: 48665 c/s real, 48665 c/s virtual Alexander
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.