The HPC Password Cracker project is a password cracker that supports OpenMPI, Open MP technologies. Passwords values provided at the command line are expected to be hashed values using sha256sum encryption.

echo -n 'test' | sha256sum

1. Be certain to install the libssl-dev package prior to compilation. On Ubuntu: sudo apt-get install libssl-dev

2. Run make clean between implementations to ensure the appropriate binaries are available for each individual implementation.

Run make: make serial

Pass in the full path of the dictionary file.

./bin/serial-cracker --dictionary dictionary_files/100_pass.txt --password $(echo -n '123456' | sha256sum) --verbose

or using short option names:

./bin/serial-cracker -d dictionary_files/100_pass.txt -p $(echo -n '123456' | sha256sum) -v

./bin/serial-cracker --bruteforce --lowercase --uppercase --numbers --symbols -p $(echo -n 'test' | sha256sum) --verbose

or using short option names:

./bin/serial-cracker -bluns -p $(echo -n 'test' | sha256sum) -v

Provide the number of lines per file. (E.g., With four processes and 100 passwords, we need four files. Divide the 100 passwords evenly into 25 per file.)

mkdir -p temp && split -d -l 25 dictionary_files/100_pass.txt temp/file_

Note: A current limitation here is the need to have the number of passwords even divisible by the number of processes.

Run make: make mpi

Pass in the "temp" directory for the location of the split files to be processed across processes.

mpirun -np 4 ./bin/mpi-cracker -d temp -p $(echo -n '123456' | sha256sum) -v

mpirun -np 4 ./bin/mpi-cracker -bluns -p $(echo -n 'test' | sha256sum) -v

Run make: make omp

Pass in the full path of the dictionary file.

OMP_NUM_THREADS=4 ./bin/omp-cracker -d dictionary_files/100_pass.txt -p $(echo -n '123456' | sha256sum) -v

OMP_NUM_THREADS=4 ./bin/omp-cracker -bluns -p $(echo -n 'test' | sha256sum) -v

Experemental: Only available for Brute Force attack. Also, in its current state, this solution is unoptimized and is not much faster than the serial version.

Run make: make cuda

./bin/cuda-cracker -bluns -p $(echo -n 'test' | sha256sum) -v

Run from command line: sudo apt install libopenmpi-dev

• Donna Harris
• Ma Luo
• Will Anderson