My interest lately has been ssh key management. If in the unlikely event I find the time to flesh something out properly, I feel I could fill 20-30 minutes working through pulling private keys out of ssh-agent processes with one of the gdb scripts floating around the place (moral of the story: use a smartcard/yubikey; and/or don’t allow your ssh-agent to keep your keys loaded forever). Also, I’ve been exploring the failure modes of things like ssh-keygen on embedded devices and virtual machines starved of entropy; but it’s early days for me on that topic.
I’m sorry folks, I’m not going to be able to run this cryptoparty anymore. I may try again in a few months, after various family related things settle down.