expiration dates on cryptography
Perry E. Metzger
perry at piermont.com
Wed Nov 8 06:17:03 PST 1995
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
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