[Cryptography] Terakey, An Encryption Method Whose Security Can Be Analyzed from First Principles

[Jerry Leichter]

> Terakey(tm) is a cipher that offers confidentiality properties provable from first principles. It employs a shared secret key substantially larger than the anticipated volume of message traffic. Key bytes are extracted pseudo-randomly from the large key, using a message indicator as the seed....
Gee, sounds like an old idea to use a high-resolution photo of the moon.  The way that was set up, the underlying random-looking database - in this case, the brightness values of the picture - didn't even have to be private.

                                                        -- Jerry

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