[taaeango] Satellite decryption challenge

The famous cipher challenges, e.g., http://elonka.com/UnsolvedCodes.html , are somewhat boring because they avoid Chosen Plaintext Attacks and Chosen Ciphertext Attacks (decrypting everything but the challenge ciphertext) which are often very powerful.  In order to create a challenge permitting such attacks, we need an active server to respond to chosen queries, but the server needs to be sufficiently inaccessible to thwart physical attacks.

Tor might be one place to hide.  Or an orbiting satellite.

We face the "Long Now" style problem of how to keep a server running for a length of time comparable to the age or the Voynich manuscript, or even Linear A. Public keys easily permit chosen plaintext queries, so are kind of a mathematical description of an encryption machine that anyone can later rebuild or repair.