Simple cli tool to operate digital signatures.
pip3 install pycryptodome
python3 simple-dsa.py sign file private_key_file signature_file # sign file
python3 simple-dsa.py keygen private_key_file public_key_file # generate keys
python3 simple-dsa.py check file signature_file public_key_file # check signature
python3 simple-dsa.py --help # show help