Re: Pre-cursor to Non-Secret Encryption

[Francois Grieu]

John Young <[EMAIL PROTECTED]> wrote:
 James Ellis, GCHQ, in his account of the development of non-secret
 encryption credits a Bell Laboratories 1944 report  on "Project
 C-43" for stimulating his conception:
 http://www.cesg.gov.uk/publications/media/nsecret/possnse.pdf
The URL above does not work. The new one is:

http://www.cesg.gov.uk/site/publications/media/nsecret/possnse.pdf

Fredrik Henbjork <[EMAIL PROTECTED]>
The following seems like the right URL:
The Possibility of Non-Secret Encryption by J H Ellis (1970)
<http://www.cesg.gov.uk/site/publications/media/possnse.pdf>
Fed with "Non-Secret Encryption" the search engine on the site gave 4 
other (later) papers. Unfortunately, all are retyped, with added 
typos.
In particular X to the power N appears as X N.

A Note on Non-Secret Encryption by C Cocks (1973)
<http://www.cesg.gov.uk/site/publications/media/notense.pdf>
Thoughts On Cheaper Non-Secret Encryption by M Williamson (1976)
<http://www.cesg.gov.uk/site/publications/media/cheapnse.pdf>
Non-Secret Encryption Using a Finite Field by M Williamson (1974)
<http://www.cesg.gov.uk/site/publications/media/secenc.pdf>
The Story of Non-Secret Encryption by J H Ellis (1987)
<http://www.cesg.gov.uk/site/publications/media/ellis.pdf>
 François Grieu

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