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Descrypt 8 Char PW

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Descrypt 8 Char PW
512bytes Offline
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#1
11-29-2017, 07:09 PM (This post was last modified: 11-29-2017, 07:10 PM by 512bytes.)
How long would it take to crack an 8 char DESCrypt password composed of ?a?a?a?a?a?a?a?a using a GTX 1060 ?
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royce Offline
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#2
11-29-2017, 09:08 PM
I couldn't immediately find any public benchmarks on 4.x hashcat for a 1060.

If you happen to have one, run that actual attack and check the time estimate; that will be the most accurate way to get your answer.
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512bytes Offline
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#3
11-29-2017, 09:16 PM
OK, the card doesn't arrive for a week or so. Its was either a GTX 970 or 1060, and the 1060 seemed a lot faster.
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undeath Offline
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#4
11-30-2017, 01:01 AM (This post was last modified: 11-30-2017, 01:40 AM by undeath.)
Code:
OpenCL Platform #2: NVIDIA Corporation ====================================== * Device #2: GeForce GTX 1060 6GB, 1518/6072 MB allocatable, 10MCU Hash.Type........: descrypt, DES (Unix), Traditional DES Time.Started.....: Wed Nov 29 23:59:46 2017 (16 secs) Time.Estimated...: Fri May 25 19:15:08 2018 (176 days, 18 hours) Guess.Mask.......: ?a?a?a?a?a?a?a?a [8] Speed.Dev.#2.....: 434.4 MH/s (5.76ms)

edit: w2, w3 gets you up to ~450 MH/s
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royce Offline
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#5
11-30-2017, 01:23 AM (This post was last modified: 11-30-2017, 01:23 AM by royce.)
undeath, cool - yours? Was that under -w 4?

Here's one for 6x 1080s, -w 4:

Code:
Hash.Type........: descrypt, DES (Unix), Traditional DES Time.Started.....: Wed Nov 29 14:20:19 2017 (1 min, 47 secs) Time.Estimated...: Thu Dec 14 06:46:13 2017 (14 days, 16 hours) Guess.Mask.......: ?a?a?a?a?a?a?a?a [8] Speed.Dev.#1.....:   875.9 MH/s (382.31ms) Speed.Dev.#2.....:   861.9 MH/s (388.58ms) Speed.Dev.#3.....:   872.8 MH/s (383.87ms) Speed.Dev.#4.....:   871.5 MH/s (384.03ms) Speed.Dev.#5.....:   872.2 MH/s (384.02ms) Speed.Dev.#6.....:   874.4 MH/s (382.60ms) Speed.Dev.#*.....:  5228.9 MH/s
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512bytes Offline
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#6
11-30-2017, 04:15 PM
Thanks for the benchs.

I saw a benchmark on the GTX 970:

Hashtype: descrypt, DES(Unix), Traditional DES
Workload: 128 loops, 256 accel

Speed.GPU.#1.: 89998.0 kH/s

Why's it so much slower than the 1060 ?
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royce Offline
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#7
11-30-2017, 05:21 PM
Faster base clock (1708 MHz vs1050 MHz) ?

https://www.nvidia.com/en-us/geforce/pro...-gtx-1060/
https://www.geforce.com/hardware/desktop...ifications
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512bytes Offline
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#8
11-30-2017, 07:09 PM
Ah, good that means I can OC and get more speed.
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royce Offline
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#9
11-30-2017, 07:22 PM
For a single 1060, it will still take four months, I would think.
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512bytes Offline
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#10
12-01-2017, 03:30 AM (This post was last modified: 12-01-2017, 03:32 AM by 512bytes.)
(11-30-2017, 07:22 PM)royce Wrote: For a single 1060, it will still take four months, I would think.

Yeah, Im thinking of getting x2 1060s and a 1070.

Once done I can put them in to a secondary PC (which has an old GTX 260 at the moment).
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