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Date: Mon, 23 Jul 2012 20:41:48 +0530
From: Dhiru Kholia <>
Subject: OpenCL implementation of ZIP AES file format


I have written OpenCL implementation of ZIP AES file format. Patch
(against magnum-jumbo) attached. Thanks to Lukas for PBKDF2 kernel.

$ ../run/john -fo:zip-opencl -t # ATI 6970
OpenCL platform 0: AMD Accelerated Parallel Processing, 2 device(s).
Using device 0: Cayman
Benchmarking: ZIP-AES PBKDF2-HMAC-SHA-1 [OpenCL]... DONE
Raw:	124540 c/s real, 2764K c/s virtual

$ ../run/john -fo:zip -t # AMD X3 720 CPU (1 core).
Benchmarking: WinZip PBKDF2-HMAC-SHA-1 [32/64]... DONE
Raw:	642 c/s real, 642 c/s virtual

Speedup obtained (over single core): ~194x


Download attachment "0001-OpenCL-implementation-of-ZIP-AES-format-v2.patch" of type "application/octet-stream" (24682 bytes)

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