I have a dual-boot machine, which I can wake up over the network. Here’s how I added the ability to select which OS GRUB should boot over the network.

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).