1996-03-14 - Re: PGP reveals the key ID of the recipient of encrypted msg

Header Data

From: cmca@alpha.c2.org (Chris McAuliffe)
To: matthew@itconsult.co.uk (Matthew Richardson)
Message Hash: 54bcfa41a0ac69a8b6645f821a6b781c79779792f94cdc104588ea2e06bcbf1c
Message ID: <199603140140.RAA06876@eternity.c2.org>
Reply To: <3146910b.90015235@itconsult.co.uk>
UTC Datetime: 1996-03-14 22:26:35 UTC
Raw Date: Thu, 14 Mar 1996 17:26:35 -0500

Raw message

From: cmca@alpha.c2.org (Chris McAuliffe)
Date: Thu, 14 Mar 1996 17:26:35 -0500
To: matthew@itconsult.co.uk (Matthew Richardson)
Subject: Re: PGP reveals the key ID of the recipient of encrypted msg
In-Reply-To: <3146910b.90015235@itconsult.co.uk>
Message-ID: <199603140140.RAA06876@eternity.c2.org>
MIME-Version: 1.0
Content-Type: text/plain


-----BEGIN PGP SIGNED MESSAGE-----

[To: matthew@itconsult.co.uk (Matthew Richardson)]
[cc: cypherpunks@toad.com]
[Subject: Re: PGP reveals the key ID of the recipient of encrypted msg ]
[In-reply-to: Your message of Wed, 13 Mar 96 09:12:10 GMT.]
             <3146910b.90015235@itconsult.co.uk> 

matthew@itconsult.co.uk (Matthew Richardson) came full circle with:
>On Wed, 13 Mar 1996 00:28:48 -0500, "Robert A. Rosenberg"
><hal9001@panix.com> wrote:

>>There is also the problem of knowing WHICH key to use (ie: Even when you
>>know the message is intended for you, you must do a test run with each of
>>your keys until one works).

>I believe that provided all your keys are in your secret keyring, PGP
>will automatically pick the correct one for you.

But PGP can only do this because the keyID is there in the encrypted
text, and the point of this discussion was to strip off the keyIDs so
that you couldn't tell who the message was being sent to any more...

Arrgh.

Chris McAuliffe <cmca@alpha.c2.org> (No, not that one.)

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