17 Dec
2003
17 Dec
'03
11:17 p.m.
Paul Schauble <pls@crl.com> writes: Can I do this with crypto technology? Can I send someone a message, and possible a program, such that the message can only be decrypted after a predetermined date?
I think you would need a trusted time server that sends out signed timestamps... you can't trust other time sources, including WWV (just broadcast a signal locally to swamp the signal).
Use the GPS systems. They are synced to the NITS (or whatever they call it now) and have time stamps coded in them. As to swamping out a sat or two, yeah could be done but they would have to be mighty high above you in a airplane or blimp or something...