Hashcat RTX 3080 Performance issues (Windows)
#1
Hello Everyone,


I'm experimenting with hashcat (v6.2.5) on Windows cracking “bcrypt $2*$, Blowfish (Unix)” hashes, but I feel like my hashrate is really slow on RTX 3080.

Is this hashrate correct for this GPU?

Code:
hashcat-6.2.5>hashcat.exe -m 3200 hash.txt rockyou.txt -w 3 -a 0 -O hashcat (v6.2.5) starting CUDA API (CUDA 11.6) ==================== * Device #1: NVIDIA GeForce RTX 3080, 9106/10239 MB, 68MCU OpenCL API (OpenCL 3.0 CUDA 11.6.110) - Platform #1 [NVIDIA Corporation] ======================================================================== * Device #2: NVIDIA GeForce RTX 3080, skipped Kernel ./OpenCL/m03200-optimized.cl: Optimized kernel requested, but not available or not required Falling back to pure kernel Minimum password length supported by kernel: 0 Maximum password length supported by kernel: 72 Hashes: 1 digests; 1 unique digests, 1 unique salts Bitmaps: 16 bits, 65536 entries, 0x0000ffff mask, 262144 bytes, 5/13 rotates Rules: 1 Optimizers applied: * Zero-Byte * Single-Hash * Single-Salt Watchdog: Temperature abort trigger set to 90c Host memory required for this attack: 6 MB Dictionary cache hit: * Filename..: rockyou.txt * Passwords.: 14344385 * Bytes.....: 139921507 * Keyspace..: 14344385 [s]tatus [p]ause [b]ypass [c]heckpoint [f]inish [q]uit => Session..........: hashcat Status...........: Running Hash.Mode........: 3200 (bcrypt $2*$, Blowfish (Unix)) Hash.Target......: $2y$13$XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Time.Started.....: Fri Mar 18 16:57:41 2022 (23 secs) Time.Estimated...: Sat Mar 19 04:19:59 2022 (11 hours, 21 mins) Kernel.Feature...: Pure Kernel Guess.Base.......: File (rockyou.txt) Guess.Queue......: 1/1 (100.00%) Speed.#1.........:      350 H/s (67.98ms) @ Accel:64 Loops:128 Thr:24 Vec:1 Recovered........: 0/1 (0.00%) Digests Progress.........: 7680/14344385 (0.05%) Rejected.........: 0/7680 (0.00%) Restore.Point....: 7680/14344385 (0.05%) Restore.Sub.#1...: Salt:0 Amplifier:0-1 Iteration:2944-3072 Candidate.Engine.: Device Generator Candidates.#1....: somebody -> sassy123 Hardware.Mon.#1..: Temp: 57c Fan: 30% Util:100% Core:1964MHz Mem:9242MHz Bus:16 [s]tatus [p]ause [b]ypass [c]heckpoint [f]inish [q]uit =>
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#2
That is correct. In fact, that's a little faster than i would have expected. Bcrypt is built to be extremely difficult to crack and it does a really god job of it. There's nothing you can do to make it go any faster on that hardware.
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#3
(03-18-2022, 08:25 PM)Chick3nman Wrote: That is correct. In fact, that's a little faster than i would have expected. Bcrypt is built to be extremely difficult to crack and it does a really god job of it. There's nothing you can do to make it go any faster on that hardware.

Thank you for your response, thats good to hear. The GPU seems quiter than it usually is under load, but I guess thats due to the low memory usage of this type of attack.
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