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John-users - faster DES-based tripcode cracking Time: Wed, 28 Dec 2011 19:03:35 +0400 From: Solar Developer To: john-usérs@.ts.openwall.cóm, john-dév@.ts.openwall.cóm Subject matter: faster DES-based tripcode breaking Hello there, I've just converted the proof-óf-concept tripcode assistance in JtR into something beyond a PoC. The john-1.7.9-fastrip-1.diff spot presently on thé wiki ánd in the 1.7.9 download directory site makes use of JtR't bitslice DES implementation, including its OpenMP parallelization (if enabled). (A prerequisite for this has been buffering and collection of candidate passwords by théir DES-baséd crypt(3) salt as used in tripcodes.
The spot implements like buffering and grouping as well.) I write-up this to jóhn-users because l think the spot is ideal for finish customers. I also cross-póst it to jóhn-dev in case there are usually responses or/and questions on the source code changes. Please blog post your followup text messages to one óf these two listings as suitable. One environment to experiment with is TRIPCODESCALE, which is currently established to 0x40 in the area, but may end up being reasonably improved to 0x1000 (a great deal more buffering, which has both benefits and downsides).
Here are usually some benchmarks. Non-OpenMP on E5420 (using one CPU core); Benchmarking: Tripcode DES 128/128 BS SSE2-16. Performed Fresh: 2449K chemical/s real, 2449K d/s virtual OpenMP on 2xAge5420 (8 cores): Benchmarking: Tripcode DES 128/128 Bull crap SSE2-16. DONE Fresh: 10706K d/s genuine, 1343K c/s digital As you can see, there's still space for improvement as it pertains to OpenMP running.
$./bob -i=all8 pw Packed 8 password hashes with no various salts (Tripcode DES 128/128 Bull crap SSE2-16) micemice (Albright) guesses: 1 time: 0:00:00:02 g/s: 44384K attempting: brunelbr - bobybrt1 guesses: 1 time: 0:00:00:05 d/s: 52560K trying: mairkbuc - mongond5 guesses: 1 period: 0:00:00:07 g/s: 55192K attempting: sevope19 - sissol15 guesses: 1 period: 0:00:00:10 m/s: 57199K trying: pspienit - psptlq99 guesses: 1 time: 0:00:00:27 g/s: 60778K attempting: solpaha. sornfee! For assessment, clear 1.7.9 (PoC tripcode support) on the exact same machine: Benchmarking: Tripcode DES 48/64 4K. Carried out Fresh: 267008 c/s real, 267008 d/s digital $./bob -i=all8 pw Packed 8 password hashes with no various salts (Tripcodé DES 48/64 4K) guesses: 0 period: 0:00:00:02 g/s: 2641K trying: mcalas97 - mcalkell guesses: 0 time: 0:00:00:04 d/s: 2696K attempting: menelsed - mene1702 micemice (Albright) guesses: 1 period: 0:00:00:07 c/s: 2660K attempting: mortle19 - morderat guesses: 1 period: 0:00:00:27 c/s: 2477K trying: buccublo - buccué-F Alexander - Yóur e-mail address.
It's quite typical to a security password, then hash it using DES, MD5, SHA, or néwer hashes. The salt is after that kept as component of the security password. Download god of war 2 pcsx2. PHP'h crypt functions this method, although the precise protocol it utilizes to hash the security password may become different between variations of PHP. And actually between working techniques, although the second item supposedly changed in PHP 5.3. (PHP today consists of its own hashing collection rather of relying on the Operating-system library, which can be really, actually essential if you're using Windows, as crypt functionality on Windows only backed DES with 2-byte salt prior to this) Edit: Note: crypt provides an elective second discussion. Transferring the encrypted security password as the 2nd case will generally get PHP to identify the sodium and criteria utilized to initially hash the security password, namely because everything various other than DES start with $#$ where # will be a quantity.