Phil Sp. writes "Government Attic, those fine investigative pack rats, have outdone themselves this time. Just posted: a declassified NSA testimony entitled A History of Communications Security, Volumes I and II: The David G. Boak Lectures [PDF] from 1973 and 1981. This is an certainly fascinating look into how the NSA viewed (views?) communications police and touches on all sorts of topics, including public key crypto, economics, DES, tamper-resistance, etc. It was seemingly from a assortment of lectures to new employees. The first 85 pages are heavily redacted but the remaining 80 or so are largely intact. It even concludes with a cryptogram puzzle for the reader!"
Read more of this story at Slashdot.
More: - Read the rest here