[43096] in Cypherpunks
Re: expiration dates on cryptography
daemon@ATHENA.MIT.EDU (Perry E. Metzger)
Wed Nov 8 09:13:25 1995
To: John Curtis <jbell@capecod.net>
Cc: "'cypherpunks@toad.com'" <cypherpunks@toad.com>
In-Reply-To: Your message of "Wed, 08 Nov 1995 07:21:39 EST."
<01BAADAA.DFB5F740@hy36.capecod.net>
Reply-To: perry@piermont.com
Date: Wed, 08 Nov 1995 09:06:04 -0500
From: "Perry E. Metzger" <perry@piermont.com>
John Curtis writes:
> The discussion between Mr. May and Mr. Shields concerning
> time-release cryptograhy raised an interesting question in my
> mind.
>
> Given that trust is often of an ephemeral nature, it would be
> quite useful to set time limits on secrets. Would it be possible
> to cryptographically protect a secret such that it could not be
> decrypted after a certain time?
No.
.pm
