Tool/software: TI C/C++ Compiler
I have been working with both secure_fw_tool.py as well as tools\blestack\oad\keys\key_generate.py. The latter has support for python 3, the former does not.
I modified the key generate code to read from a text file for loading the private(signing) key and noticed that for the exact same key I get different signer signatures when running the test code under python2&3.
For my purposes, I will be loading the python2 generated sign to my main.c , but perhaps someone from ti should update the secure_fw_tool.py to handle both flavors as keygen does.
Best,
Konstantin