Verifying the integrity/lineage of a file

[Malcolm Greene]

Thanks for the replies! I'm going to investigate the use of python-gnupg  [1] which is a Python wrapper for the GPG command line utility. This library is based on gpg.py written by Andrew Kuchling.  I'm all ears if f anyone has any alternative recommendations or python-gnupg tips to share. BTW: Target clients are running under Windows and Linux.

[1] https://pythonhosted.org/python-gnupg/