NSA

SCI//HCS-P/SI/TK at Mar-a-Lago

This is a brief explanation of the weird acronyms on the cover sheets that appeared in…
Self-teaching a little security thinking

There’s a particular mindset we call security thinking. I’ve also seen it called ‘reasoned paranoia.’ The…
Election Crypto Conspiracy Theory

I’m not often a fan of conspiracy theories, except for entertainment value. This one is interesting…
NSA re-releases Boak’s Lectures

I’m a fan of Boak’s Lectures – they cover the fundamentals of military cryptography just before…
Standardized Back Door

Matthew Green published an entertaining rundown on the cryptographic back door in ANSI and NIST standards.…
Boak’s Puzzle: Disposing of Classified Trash

Recently I was skimming through the NSA’s “classified history of COMSEC” (Volume 1 and Volume 2). This…
One-Time Pads

The one-time pad is the only encryption technique that has been mathematically proven to be uncrackable.…