Back in 2005, I wrote a perl script to calculate multiple cryptographic hashes for me. We had md5sum and sha1sum, but I wanted a single script that could calculate whichever one I wanted or all of them at the same time. Well, the weekend before last, I rewrote it in Python and added SHA3 support. I've added it to my githup scripts repo. I also added the -r switch to the Python version, so that it can be used to recursively hash all the files in a directory a la Jesse Kornblum's hashdeep suite. Also, for consistency with Jesse's recent release of his beta of sha3deep, I chose to use SHA3-384 for my SHA3 hash choice (in preliminary testing I had been using SHA3-256, but that could have been confused with SHA2-256 aka SHA256 as currently used by VirusTotal, etc.). By default, it will calculate all 5 hashes, or you can specify which ones you want with command-line switches. For example, sigs.py -m will give you output that should be identical to md5sum. Also, without the -f switch, it will show relative paths, with it, it will show full path. Enjoy.
Mar 13th 2017
5 months ago