hashcat Forum

As with most of the problems I run into, I'm sure there's a better way.

As soon as I saw the release announcement for hashcat 3, I tried it in my nearest VM, a 32-bit The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) machine. Lacking OpenCL drivers, I got a segmentation fault. I found that Intel doesn't offer 32-bit linux OpenCL drivers, and since my VM lacked a video card, that was about it. I asked on IRC and got pretty much the same answer; use a 64-bit VM, or a physical machine with a card.

I started looking at what was offered in the repository, and POCL (Portable Computing Language library) seemed to -almost- work. It was distributed with 64-bit libraries though. After a few days on and off of fooling with dependencies, I seem to have it working. I present to you "How to run hashcat 3 on a 32-bit VM... mostly..."

https://www.nullsec.us/hashcat-3-0-on-a-32-bit-linux-vm/

Remove clang and llvm versions versions 3.6 and 3.7. I'm not sure why, but in my experimenting, pocl seemed very picky about the versions of these libraries.

Code:
apt remove clang*  

apt remove llvm*  

apt-get autoremove -y  

Add the correct versions and path clang (which is in llvm's bin folder)

Code:
apt install clang-3.8  

apt install libclang-3.8-dev  

vim .bashrc -> Add clang to path "PATH=$PATH:/usr/lib/llvm-3.8/bin"  

   Open a new terminal and test with "clang --version", should return 3.8

Install a few more dependencies

Code:
apt install libhwloc-dev  

apt install ocl-icd-dev  

apt install ocl-icd-opencl-dev  

These dependencies that should already be there, make sure though

Code:
apt install pkg-config  

apt install autotools-dev  

apt install cmake  

apt install make  

apt install libltdl3-dev  

Git pocl, make, install

Code:
git clone https://github.com/pocl/pocl  

cd pocl  

./autogen.sh

./configure

make  

make install

Now, you'll have to use --force, or you get warnings that you are not using a native Intel OpenCL runtime

Code:
root@The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali):~/Desktop/hashcat-3.00# ./hashcat32.bin -b hashcat (v3.00-1-g67a8d97) starting in benchmark-mode...

OpenCL Platform #1: The pocl project

Device #1: WARNING: Not a native Intel OpenCL runtime, expect massive speed loss You can use --force to override this but do not post error reports if you do so

Device #1: pthread-Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz, skipped

ERROR: No devices found/left

but if you do, everything should work... mostly...

Code:
root@The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali):~/Desktop/hashcat-3.00# ./hashcat32.bin --force -b hashcat (v3.00-1-g67a8d97) starting in benchmark-mode...

OpenCL Platform #1: The pocl project

Device #1: pthread-Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz, 1513/1513 MB allocatable, 1MCU

Hashtype: MD4

Speed.Dev.#1.: 15532.5 kH/s (109.65ms)

[... SNIP ...]

Hashtype: Juniper IVE

Speed.Dev.#1.: 6841 H/s (98.83ms)

error: Explicit gep type does not match pointee type of pointer operand (Producer: 'LLVM3.8.0' Reader: 'LLVM 3.8.0')

Thanks! About that one error, you should post it to the pocl project. They are pretty good and fast in fixing their own bugs, if it is. Also possible it's a LLVM problem.

Thanks a lot .. but will the same method work on a 64-bit The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) vm?

(07-05-2016, 01:23 AM)BeanBagKing Wrote: [ -> ]As with most of the problems I run into, I'm sure there's a better way.

so i tried it my self with a VM (virtual box) The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) linux 2, 64bit

followed the guide and it failed on the "make" command

Code:
pocl_llvm_api.cc:32:41: fatal error: clang/CodeGen/CodeGenAction.h: No such file or directory

compilation terminated.

Makefile:2816: recipe for target 'libpoclllvm_la-pocl_llvm_api.lo' failed

make[5]: *** [libpoclllvm_la-pocl_llvm_api.lo] Error 1

make[5]: Leaving directory '/root/Downloads/pocl/lib/CL'

Makefile:2835: recipe for target 'all-recursive' failed

make[4]: *** [all-recursive] Error 1

make[4]: Leaving directory '/root/Downloads/pocl/lib/CL'

Makefile:916: recipe for target 'all' failed

make[3]: *** [all] Error 2

make[3]: Leaving directory '/root/Downloads/pocl/lib/CL'

Makefile:470: recipe for target 'all-recursive' failed

make[2]: *** [all-recursive] Error 1

make[2]: Leaving directory '/root/Downloads/pocl/lib'

Makefile:644: recipe for target 'all-recursive' failed

make[1]: *** [all-recursive] Error 1

make[1]: Leaving directory '/root/Downloads/pocl'

Makefile:530: recipe for target 'all' failed

make: *** [all] Error 2

Code:
clang --version

clang version 3.8.0-2 (tags/RELEASE_380/final)

Target: x86_64-pc-linux-gnu

Thread model: posix

InstalledDir: /usr/lib/llvm-3.8/bin

i am sorry it was my bad, i did not install apt install libclang-3.8-dev so i rapidly do the whole proccess all over again to make sure i did not skip anything
BUT its still not working Big Grin

Code:
/Downloads/hashcat-3.10# ./hashcat64.bin --force -b -d 1

hashcat (v3.10) starting in benchmark-mode...

OpenCL Platform #1: The pocl project

====================================

- Device #1: pthread-Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz, 2967/2967 MB allocatable, 2MCU

OpenCL Platform #2: Mesa, skipped! No OpenCL compatible devices found

Illegal instruction

i am giving 2 cpu cores to my vm [Image: a1bca006fa684250a6f5f64d4cc5a167.png]

kali20a - Regarding The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) 64, use the Intel OpenCL drivers https://software.intel.com/en-us/article...cl-drivers - down near the bottom, look for 16.1.1 for Ubuntu. When you install it, you'll likely get an error about missing dependency (can't remember which one, ignore it).

kiara - Honestly, I got this working because I'm stubborn and encountered a problem. I learned a few things, but it's flaky and kind of a pain. I suggest moving to 64bit or downgrading to HC 2. That said, if you just want to solve the problem for the sake of solving it, HC 3 is recognizing your processor. I would fiddle with the --force, -d and -D flags. I also did all my testing on 2016.1, not The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) 2 Sana. That might make a difference.

(09-04-2016, 04:52 AM)BeanBagKing Wrote: [ -> ]kali20a - Regarding The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) 64, use the Intel OpenCL drivers https://software.intel.com/en-us/article...cl-drivers - down near the bottom, look for 16.1.1 for Ubuntu. When you install it, you'll likely get an error about missing dependency (can't remember which one, ignore it).

kiara - Honestly, I got this working because I'm stubborn and encountered a problem. I learned a few things, but it's flaky and kind of a pain. I suggest moving to 64bit or downgrading to HC 2. That said, if you just want to solve the problem for the sake of solving it, HC 3 is recognizing your processor. I would fiddle with the --force, -d and -D flags. I also did all my testing on 2016.1, not The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) 2 Sana. That might make a difference.

hmm, i am on a 64 bit.. (unless u ment 32bit) , and i did try --force and -d -D
i think i will stick with the old HC 2 Smile

(09-04-2016, 04:52 AM)BeanBagKing Wrote: [ -> ]kali20a - Regarding The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) 64, use the Intel OpenCL drivers https://software.intel.com/en-us/article...cl-drivers - down near the bottom, look for 16.1.1 for Ubuntu. When you install it, you'll likely get an error about missing dependency (can't remember which one, ignore it).

Thanks a lot BeanBagKing,

Works like a charm ! I upgraded my HC to v3.10 then installed the Intel OpenCL then the pocl .. now HC works fine even without using the --force

(09-18-2016, 04:08 AM)kali20a Wrote: [ -> ]
(09-04-2016, 04:52 AM)BeanBagKing Wrote: [ -> ]kali20a - Regarding The-Distribution-Which-Does-Not-Handle-OpenCL-Well (The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali)) 64, use the Intel OpenCL drivers https://software.intel.com/en-us/article...cl-drivers - down near the bottom, look for 16.1.1 for Ubuntu. When you install it, you'll likely get an error about missing dependency (can't remember which one, ignore it).

Thanks a lot BeanBagKing,

Works like a charm ! I upgraded my HC to v3.10 then installed the Intel OpenCL then the pocl .. now HC works fine even without using the --force

Hey everyone,

This section:

"Git pocl, make, install

Code:
git clone https://github.com/pocl/pocl
cd pocl
./autogen.sh
./configure
make
make install "

I think they updated the Git repository, because none of those apply anymore.

Anyone have an idea on what to do? I have been on this for approaching 6 hours.

UPDATE: My host machine is 64 bit The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali), and my VMWare image for The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) is 32 bit lol, so. I just used it on my 64 bit The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) and it ran just fine! Still does not solve the update needed for this, but. Still got around it!

BeanBagKing

atom

kali20a

kiara

BeanBagKing

kiara

kali20a

nim