🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: sci.crypt
Article #1271

Re: A new encryption problem?

#1271
From: Carl Ellison
Date: Fri, 06 Nov 1992 19:46
18 lines
1426 bytes
In article <lfjmkiINNa74@exodus.Eng.Sun.COM> silber@orfeo.Eng.Sun.COM (Eric Silber) writes:
>    Require: (for-all p)( (c=E(p)) is a text which appears to be
>                                   a plaintext)


The problem here is that both c and p must carry information and be
believable both in style and as a real communication.  ("The pen of my aunt
is on the table" doesn't pass as a real communication even though it parses
correctly.)  So, the encrypted text must be hidden in the free choices of
the cover communication.  Since that cover communication needs to be
uniform in style, so as to fool the censors, you have very few choices.
This means that the bit rate is rather low...or, in other words, the
ciphertext will be much larger than the plaintext.
-- 
-- <<Disclaimer: All opinions expressed are my own, of course.>>
-- Carl Ellison						cme@sw.stratus.com
-- Stratus Computer Inc.	M3-2-BKW		TEL: (508)460-2783
-- 55 Fairbanks Boulevard ; Marlborough MA 01752-1298	FAX: (508)624-7488
Technical Details
Message-ID: <7986@transfer.stratus.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!ulowell!m2c!bu.edu!transfer!ellisun.sw.stratus.com!cme
References: <lfjmkiINNa74@exodus.Eng.Sun.COM>

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!ulowell!m2c!bu.edu!transfer!ellisun.sw.stratus.com!cme
From: cme@ellisun.sw.stratus.com (Carl Ellison)
Newsgroups: sci.crypt
Subject: Re: A new encryption problem?
Message-ID: <7986@transfer.stratus.com>
Date: 6 Nov 92 19:46:42 GMT
References: <lfjmkiINNa74@exodus.Eng.Sun.COM>
Sender: usenet@transfer.stratus.com
Organization: Stratus Computer, Software Engineering
Lines: 18