Regular readers will know I’m responsible for the Android port of Simon Tatham’s Puzzles, and that it’s been a few years since I updated it. I’ve just discovered a dilemma that will unfortunately complicate the process further.

My Linux installation is encrypted but boots without a password. Here’s how that works.

I’m now the proud owner of a Crypto Stick, an OpenPGP smartcard implementation in USB stick form. It is apparently capable of generating and using 4096-bit keys, but GnuPG has a limit of 3072 bits (quick tests and git master show this is still the case).