At 05:05 3/8/2000 +0800, Arrianto Mukti Wibowo wrote:
>Hi,
>
>I want to know whether there is a crypto building block which doesn't allow
>someone to open an encrypted message before a certain date.
>
>[Damn hard. Math functions don't grok "date". The only reasonable way
>to do this without a trusted third party is to pick an encryption
>algorithm that will take at least as long to decrypt (in likely
>available computer time) as are needed. -Perry]
Perry is right. If you have a trusted third party with a secure location,
you could simply have the trusted third party release the key on the
appointed date.
_______
Michael Paul Johnson
http://ebible.org/mpj
