05-03-2020, 11:45 PM
(This post was last modified: 05-03-2020, 11:56 PM by rapidrabbit.)
TLDR: I managed to get it working by manually setting loop and acceleration values with the -n and -u options like so:
hashcat.exe -b -m 16800 -n 800 -u 1024 --force
-m 16800 -> My objective is to crack PMKID hashes, so I focused my efforts there.
--force -> If you run without the --force, execution will halt with a warning suggesting to use workload profile (-w option). However, none of them worked for me so I use --force to ignore warnings.
I am not sure if 800 and 1024 values are the best for this, I am quite ignorant on what they do internally (links welcome) so I picked them by experimenting and watching if number go up.
Using the stable version did not work, I had to go use the beta version (hashcat-5.1.0+1774).
hashcat.exe -b -m 16800 -n 800 -u 1024 --force
hashcat (v5.1.0-1774-gf96594ef) starting in benchmark mode...
Benchmarking uses hand-optimized kernel code by default.
You can use it in your cracking session by setting the -O option.
Note: Using optimized kernel code limits the maximum supported password length.
To disable the optimized kernel code in benchmark mode, use the -w option.
You have enabled --force to bypass dangerous warnings and errors!
This can hide serious problems and should only be done when debugging.
Do not report hashcat issues encountered when using --force.
./OpenCL/m16800-optimized.cl: Optimized kernel requested but not needed - falling back to pure kernel
OpenCL API (OpenCL 2.1 AMD-APP (3004.8)) - Platform #1 [Advanced Micro Devices, Inc.]
=====================================================================================
* Device #1: Tahiti, 3008/3072 MB (2393 MB allocatable), 32MCU
* Device #2: Tahiti, 3008/3072 MB (2393 MB allocatable), 32MCU
Benchmark relevant options:
===========================
* --force
* --optimized-kernel-enable
* --kernel-accel=800
Hashmode: 16800 - WPA-PMKID-PBKDF2 (Iterations: 4095)
Speed.#1.........: 144.5 kH/s (2826.31ms) @ Accel:800 Loops:1024 Thr:64 Vec:1
Speed.#2.........: 145.0 kH/s (2801.45ms) @ Accel:800 Loops:1024 Thr:64 Vec:1
Speed.#*.........: 289.5 kH/s
Started: Sun May 03 18:39:56 2020
Stopped: Sun May 03 18:40:16 2020
Thanks.
hashcat.exe -b -m 16800 -n 800 -u 1024 --force
-m 16800 -> My objective is to crack PMKID hashes, so I focused my efforts there.
--force -> If you run without the --force, execution will halt with a warning suggesting to use workload profile (-w option). However, none of them worked for me so I use --force to ignore warnings.
I am not sure if 800 and 1024 values are the best for this, I am quite ignorant on what they do internally (links welcome) so I picked them by experimenting and watching if number go up.
Using the stable version did not work, I had to go use the beta version (hashcat-5.1.0+1774).
hashcat.exe -b -m 16800 -n 800 -u 1024 --force
hashcat (v5.1.0-1774-gf96594ef) starting in benchmark mode...
Benchmarking uses hand-optimized kernel code by default.
You can use it in your cracking session by setting the -O option.
Note: Using optimized kernel code limits the maximum supported password length.
To disable the optimized kernel code in benchmark mode, use the -w option.
You have enabled --force to bypass dangerous warnings and errors!
This can hide serious problems and should only be done when debugging.
Do not report hashcat issues encountered when using --force.
./OpenCL/m16800-optimized.cl: Optimized kernel requested but not needed - falling back to pure kernel
OpenCL API (OpenCL 2.1 AMD-APP (3004.8)) - Platform #1 [Advanced Micro Devices, Inc.]
=====================================================================================
* Device #1: Tahiti, 3008/3072 MB (2393 MB allocatable), 32MCU
* Device #2: Tahiti, 3008/3072 MB (2393 MB allocatable), 32MCU
Benchmark relevant options:
===========================
* --force
* --optimized-kernel-enable
* --kernel-accel=800
Hashmode: 16800 - WPA-PMKID-PBKDF2 (Iterations: 4095)
Speed.#1.........: 144.5 kH/s (2826.31ms) @ Accel:800 Loops:1024 Thr:64 Vec:1
Speed.#2.........: 145.0 kH/s (2801.45ms) @ Accel:800 Loops:1024 Thr:64 Vec:1
Speed.#*.........: 289.5 kH/s
Started: Sun May 03 18:39:56 2020
Stopped: Sun May 03 18:40:16 2020
Thanks.