Studying for Security+ | Cryptography Design & Implementation
Not going to lie, I finished this domain last week and forgot to post my notes on it.
Overall, this domain (and the next) are something I have experience in and I find myself skipping through many of the videos where I don’t really need a visual aid of how a certificate is created for example. The most difficult part of this domain is remembering the formats for certificates and the details around the specific data they want you to know around hashing, key exchange, and cryptographic algorithms. This includes how many bit-blocks Diffie-Hellman, RSA, DSA, SHA, RC4, etc, etc, etc has in it. I took a ton of notes here and will end up making flashcards with these values because I know I’m going to get stumped here.
One opinion, this is a new cert version through CompTIA (as of July 2021). You would think that would take out the details on old algorithms that shouldn’t be used and leave it at that. I understand it is good to know how they work in general, but having to memorize such detailed information about something that is no longer used… c’mon.
Here are the notes.