Last week, I was presented with a fairly interesting challenge: add DKIM (via OpenDKIM) support to our mail servers (running Postfix). Given that I’ve never actually worked on a mail server before, it sounded fun. 😄
Last week, I was presented with a fairly interesting challenge: add DKIM (via OpenDKIM) support to our mail servers (running Postfix). Given that I’ve never actually worked on a mail server before, it sounded fun. 😄
Today we’re going to be talking about cryptography, specifically Diffie-Hellman key exchange1. The basic idea isn’t necessarily to communicate in secret, but rather to establish the information that makes doing so much easier.