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Re; Time Expiry Algorithm
From: Jacqueline Singh <jacqueline.singh () gmail com>
Date: Sun, 21 Nov 2004 11:14:30 +0300

/me shakes her head at Andrew Farmer.

Okay, now it's just ridiculous to suggest that you wouldn't be able to
implement a time limitation on something encrypted simply because
"clocks can be changed".

What 'clocks' are talking about -- which are you basing it off of?

What if you decided to code into the encryption the use of atomic
clocks, and include more than one or two as a redundancy/security
check?

Someone's really going create a huge conspiracy to change a few of the
world's atomic clocks drastically to be able to crack someone's
encrypted data? :P

-jax


To: "Gautam R. Singh" <gautam.singh () gmail com>
Cc: Full-Disclosure Full-Disclosure <full-disclosure () lists netsys com>
From: Andrew Farmer <andfarm () teknovis com>
Subject: Re: [Full-disclosure] Time Expiry Alogorithm??
Date: Fri, 19 Nov 2004 10:28:20 -0800

Gautam R. Singh <gautam.singh () gmail com> wrote:
I was just wondering is there any encrytpion alogortim which expires
with time.
For example an email message maybe decrypted withing 48 hours of its
delivery otherwise it become usless or cant be decrypted with the
orignal key

No. Think about it for a moment.

(Clocks can be changed.)

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