[6740] in cryptography@c2.net mail archive
time dependant
daemon@ATHENA.MIT.EDU (Arrianto Mukti Wibowo)
Tue Mar 7 16:54:44 2000
Message-ID: <010601bf8879$2f4c1980$82d08489@muki>
Reply-To: "Arrianto Mukti Wibowo" <iscp9063@nus.edu.sg>
From: "Arrianto Mukti Wibowo" <iscp9063@nus.edu.sg>
To: "Cryptography" <cryptography@c2.net>
Date: Wed, 8 Mar 2000 05:05:24 +0800
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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]
In another word, I need to know several "date/time-related" crypto papers
around. Can somebody give me pointers?
Thanxalot,
-mukti
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