Noncryptographic Security Issues - Codes: The Guide to Secrecy from Ancient to Modern Times - page 418

Figure 10.7: The NSA's CryptologicMemorial.
The black granite wall was erected outside the NSA headquar-
ters in Ft. Meade, Maryland, to honour 153 cryptologists who
sacrificed their lives for their country; courtesy of the NSA (see
http://www.nsa.gov/gallery/photo/photo00054.jpg ).
sometimes called Equities , to designate that both tasks are of equal importance.
Since the NSA is necessarily committed to being on the cutting edge of cryp-
tologicadvanes, they have a National CryptologicShool. William Friedman
was, in fact, the chief cryptologist at the forerunner of the NSA (see page 85),
and his influence was probably a precursor to the development of the school.
The above being said, we are interested herein with the controversy sur-
rounding the NSA's involvement in attempting to suppress public access to
cryptographic mechanisms. They were involved early on with Feistel's work
(see pages 97 and 120), and later with DES (see page 98), as well as the doomed
attempt to suppress public-key cryptography (see [169]). However, it is a single
chip in which we are interested, since it embodies a whole wealth of stealth that
is worth the telling.