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Testing jtr-1.6.37-mpiwlcmf2's wordlist attack

After making the mods to jtr-1.6.37 to allow for wordlist attacks (john-1.6.37-mpiwlcmf2 .. see here) i had to test that it was in-fact working.

The initial tests were performed on a sindle node (with 2 processors) - comp-pvfs-0-3 of the obsidian cluster. This was performed by:

mpirun -np 2 -nolocal -machinefile ~/machines2 ./john --wordlist=password.lst --rules shadow

Where machines2 had a single entry:
comp-pvfs-0-3:2

Unfortunately, because no passwords were actually being cracked (due to the password.lst wordfile being insufficient, and the shadow file not containing simple enough passwords) - the test was re-run, this time the code had been compiled with the -D__CMF_DBG__ flag, which enabled extra output to be generated by john into the log files for each process.

Once again, the command was run - but after running for a few minutes was manually cancelled. Analysing the log files generated by each process, john_log.0 and john_log.1, showed that each node was in fact cracking alternate words from the password.lst wordfile.