4 ms·
The Many Lives of Herbert O. Yardley (1981) [pdf]
- nigwil_ 9y agoYardley's book (annotated by his arch rival Friedman no less!) referenced in the NSA document is here: https://archive.org/details/AmericanBlackChamber https://archive.org/details/AmericanBlackChamber "The cryptography historian David Kahn called the book "the most famous book on cryptology ever published."