I actually ended up building my own OpenPGP stick a while ago using Gnuk: <a href="https:&#x2F;&#x2F;www.makomk.com&#x2F;2016&#x2F;01&#x2F;23&#x2F;openpgp-crypto-token-using-gnuk&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.makomk.com&#x2F;2016&#x2F;01&#x2F;23&#x2F;openpgp-crypto-token-using...</a> Should probably write it up properly sometime and maybe ask about getting support for my custom hardware merged upstream. (The official hardware&#x27;s also open, but the case it&#x27;s designed for was only available from the US and I&#x27;m not set up to solder QFN and 0402 parts. Not that fine-pitch TQFP is much fun either...)