Cbenson's data encryption technique (plea for help)

[Peter King]

Unicity distance and many other cryptographic terms and concepts
are defined and discussed in the following books

Denning, D.E. "Cryptography and Data Security" Addison-Wesley 1982
Konheim, A.G. "Cryptography: A Primer" Wiley 1981
Meyer, C.H. and Matyas, S.M.
	"Cryptography: a New Dimension in Computer Data Security" Wiley 1982

They are a starting point for any attempt to measure the 'strength' of
any encryption technique.

P.S. In the UK even the hardback version of David Kahn's "The Codebreakers"
is an abridged version!