The Institute for Defense Analyses, based in Alexandria, VA,
is a 50-year partner of NSA. It has two Centers for Communications
Research at Princeton, NJ, and La Jolla, CA, both doing cryptological
research for NSA:
http://www.idaccr.org/
http://www.ccrwest.org/
The latter's web site lists only this offering:
[Quote]
La Jolla Covering Repository
A (v,k,t)-covering design is
a collection of k-element subsets, called blocks, of {1,2,...,v}, such
that any t-element subset is contained in at least one block. This
site contains a collection of good (v,k,t)-coverings. Each of
these coverings gives an upper bound for the corresponding
C(v,k,t), the smallest possible number of blocks in such a
covering design.
The limit for coverings is v<100, k<=25, and
t<=8 just to draw the line somewhere. Only coverings with at
most 100000 blocks are given, except for some which were grandfathered
in. Some Steiner systems (coverings in which every t-set is covered
exactly once) which are too big for the database will be included in the
link below.
[Unquote]
What is "covering" and how does it related to
cryptology?
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Eyeballs of the two centers:
http://cryptome.org/2013-info/09/nsa-ccr/nsa-ccr.htm