Doing realtime prime detection is trivial in mine as well. Either pipe the outfile or add to the lib. I didn't write the dump tool with keys as primary target; they just happened to be there.
Sorry, my comment may have come across as an unnecessary criticism of your technique rather than how I intended it - as mentioning a shortcoming of my program in not saving all data received, and that you may be able to get some interesting results from your dump by searching for other key data and in different formats.