Tag Archives: encryption

An email signature to encourage encryption use

A great way to encourage more ubiquitous email encryption is to let people you’re emailing know that you’re equipped to use it, and that they can be too. Some people use PGP signatures for that purpose, but inline signatures┬ácan be off-putting to people who don’t know what they are, and attachments can be similarly confusing. […]

HOWTO: Graph your GPG keyring

We had a keysigning party at work today, and after it finished a few of us were looking for a way to visualize the newly increased signature density. It turns out the best tool for the job is called sig2dot, which is available in the Debian repositories (and as a Perl script on its homepage). […]

Stanford Cryptography and #CryptoParty

I recently finished the free online Stanford cryptography course offered through Coursera and taught by Dan Boneh. It’s a challenging class, with at least four hours of lectures a week, and it actually took me two attempts to get all the way through it. I’m really glad I did though: cryptography is a tremendously empowering […]

The crypto triple threat club

My written one-to-one communication patterns can be grouped into three major categories: longform, synchronous shortform, and asynchronous shortform. For the most part I use email, IMs, and SMS, respectively, for those purposes. Each of those technologies has its own end-to-end encryption protocol.1 Email has the venerable OpenPGP protocol and the GnuPG suite of programs; IM […]

A modest defense of QR codes

I’m sort of a QR code anti-hipster: I was into them before they were uncool. I actually think they’re a really nifty encoding that’s easy to read and write with the right tools, and useful for a handful of situations. But they’re so widely misused in marketing that most people never get to see one […]