1997-05-22 - Re: Stealth PGP and OTPs for Plausible Deniability

Header Data

From: Adam Back <aba@dcs.ex.ac.uk>
To: tcmay@got.net
Message Hash: 21ae7c1d2bd0b255b2061392b2cf41f0455a13ca88bcc395e119376666582379
Message ID: <199705221644.RAA02012@server.test.net>
Reply To: <v03007802afa8e11a2121@[]>
UTC Datetime: 1997-05-22 17:15:50 UTC
Raw Date: Fri, 23 May 1997 01:15:50 +0800

Raw message

From: Adam Back <aba@dcs.ex.ac.uk>
Date: Fri, 23 May 1997 01:15:50 +0800
To: tcmay@got.net
Subject: Re: Stealth PGP and OTPs for Plausible Deniability
In-Reply-To: <v03007802afa8e11a2121@[]>
Message-ID: <199705221644.RAA02012@server.test.net>
MIME-Version: 1.0
Content-Type: text/plain

Tim May <tcmay@got.net> writes:
> [...]
> Probably any stealthy versions of PGP or S/MIME would best be handled
> outside of PGP or other vendors...just modify their source code and
> distribute the stealthy versions.

You use Macs, there is a version of PGP for the Mac which does have a
stealth function integrated.  Zbigniew Fiedorowicz
<zigf@mps.ohio-state.edu> has it on his web page.

Zbig produced that as a port of the pgp-stealth 2.x which I did as a
modification of Henry Hastur's pgp-stealth.

pgp-stealth 2.x, a standalone command line utility, for unix, PCs,
etc. to post and pre-process PGP messages is at:


I also have a partly finished stealth as a patch to pgp263i which I'll
finish sometime.