1994-02-27 - standard for stegonography?

Header Data

From: Jef Poskanzer <jef@ee.lbl.gov>
To: cypherpunks@toad.com
Message Hash: 072c11a5bc6100d4ce172b62071b29d8d4e6592b6f6b7c685261102309b17b53
Message ID: <9402271916.AA06127@hot.ee.lbl.gov>
Reply To: N/A
UTC Datetime: 1994-02-27 19:16:12 UTC
Raw Date: Sun, 27 Feb 94 11:16:12 PST

Raw message

From: Jef Poskanzer <jef@ee.lbl.gov>
Date: Sun, 27 Feb 94 11:16:12 PST
To: cypherpunks@toad.com
Subject: standard for stegonography?
Message-ID: <9402271916.AA06127@hot.ee.lbl.gov>
MIME-Version: 1.0
Content-Type: text/plain

Is there a standard for stego yet?  I just added stego and de-stego
filters to my pbmplus image toolkit, using a simple protocol I made
up on the spot.  Now I'm wondering if I should make them compatible
with existing stego tools.