Date: Mon, 21 Mar 2022 13:35:41 -0400 From: Piyono Piyono <piyono@...il.com> To: john-users@...ts.openwall.com Subject: Trouble With Quadro M1000M On ThinkPad Hi, first-time listener; first-time caller. I recently stumbled into this hash-cracking rabbit hole when I locked myself out of an Excel spreadsheet. I don't work in InfoSec or any related fields. This is all quite new to me. So far I've: • determined the password length (4 characters) using commercial tease-ware. • downloaded the latest Windows binaries of JtR jumbo • used office2john.py to retrieve the file hash • run JtR on CPU using a default attack and a poorly-implemented incremental attack (290 H/s) but terminated early. • run HashCat in OpenCL ~800 H/s to no avail (wrong implementation or wrong charset, perhaps) • Installed and uninstalled nVidia CUDA Toolkit (latest) • Installed nVidia CUDA Toolkit (older version with PTX revision supported by HashCat) I'm having no luck running JtR on my Quadro GPU with either OpenCL or nVidia drivers. If I use this command: ./john -incremental=alnum --format=office-opencl hash.txt I get this output: > Device 1: Quadro M1000M > Using default input encoding: UTF-8 > Loaded 1 password hash (office-opencl, MS Office [SHA1/SHA512 AES OpenCL]) > Cost 1 (MS Office version) is 2013 for all loaded hashes > Cost 2 (iteration count) is 100000 for all loaded hashes > Could not open file: C:\Users\Me\AppData\Local\Temp\dep-c162d1.d > Options used: -I /run/kernels -cl-mad-enable -DSM_MAJOR=5 -DSM_MINOR=0 -D__GPU__ -DDEVICE_INFO=262162 -D__SIZEOF_HOST_SIZE_T__=8 -DDEV_VER_MAJOR=472 -DDEV_VER_MINOR=42 -D_OPENCL_COMPILER -DHASH_LOOPS0710=500 -DHASH_LOOPS13=100 -DUNICODE_LENGTH=96 /run/kernels/> office_kernel.cl > Build log: <kernel>:12:10: fatal error: 'opencl_device_info.h' file not found > #include "opencl_device_info.h" > ^ > > Error building kernel /run/kernels/office_kernel.cl. DEVICE_INFO=262162 > 0: OpenCL CL_BUILD_PROGRAM_FAILURE (-11) error in opencl_common.c:1386 - clBuildProgram I'm hoping someone can help me decipher this and get JtR going at a more sensible hash rate. ThinkPad P50 20EN Quadro M1000M 2GB Windows 10 21H2 [Version 10.0.19044.1586]
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