Very interesting, I think it deserves more attention. The title might not be the catchiest though. Very very interesting. Well written too.
Maybe a title like “Publishing expired DKIM private keys would increase user security”
I’d considered that, but I don’t want to steal the limelight from Ryan who already wrote a post that makes that point.
First, thanks for this article, it was very instructive. I had never read about deniability before and I find the issues really interesting.
Second, thanks for your blog, I keep reading article that pops on Lobsters and I’ve never been disappointed.