1996-08-30 - Re: Encryption
Header Data
From: Derek Bell <dbell@maths.tcd.ie>
To: Dale Thorn <cypherpunks@toad.com>
Message Hash: 577962beb27cb9374f0500de3caa2bcf3a65cd3c886f59de8884ae10d629d688
Message ID: <9608302207.aa06439@salmon.maths.tcd.ie>
Reply To: <3226ADC6.6C87@gte.net>
UTC Datetime: 1996-08-30 23:33:40 UTC
Raw Date: Sat, 31 Aug 1996 07:33:40 +0800
Raw message
From: Derek Bell <dbell@maths.tcd.ie>
Date: Sat, 31 Aug 1996 07:33:40 +0800
To: Dale Thorn <cypherpunks@toad.com>
Subject: Re: Encryption
In-Reply-To: <3226ADC6.6C87@gte.net>
Message-ID: <9608302207.aa06439@salmon.maths.tcd.ie>
MIME-Version: 1.0
Content-Type: text/plain
In message <3226ADC6.6C87@gte.net>, Dale Thorn writes:
>It appears to me that PGP encryption et al is really 1940's technology,
>albeit fancied up by 1990's computers.
1940s cyphers all had a secret key. Said key had to be forwarded to
the recipient, usually via a courier. PGP doesn't need this. It is a hybrid
system using IDEA to encrypt the message with a random session key and RSA to
encrypt the session key. It also offers digital signatures, something 1940s
cyphers didn't.
Your proposal, however, looks as if it is impossible for the recipient
to decrypt the message!
Derek Bell
Thread
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- 1996-08-30 (Fri, 30 Aug 1996 20:10:51 +0800) - Encryption - Dale Thorn <dthorn@gte.net>
- 1996-08-30 (Sat, 31 Aug 1996 02:02:15 +0800) - Re: Encryption - ichudov@algebra.com (Igor Chudov @ home)
- 1996-08-30 (Sat, 31 Aug 1996 02:46:13 +0800) - Re: Encryption - Germano Caronni <caronni@tik.ee.ethz.ch>
- 1996-08-30 (Sat, 31 Aug 1996 07:33:40 +0800) - Re: Encryption - Derek Bell <dbell@maths.tcd.ie>