[9232] in cryptography@c2.net mail archive
Re: Compression side channel
daemon@ATHENA.MIT.EDU (Greg Rose)
Sun Sep 9 23:01:20 2001
Message-Id: <4.3.1.2.20010910105850.03096ef0@203.30.171.11>
Date: Mon, 10 Sep 2001 11:11:43 +1000
To: Sandy Harris <sandy@storm.ca>
From: Greg Rose <ggr@qualcomm.com>
Cc: cryptography@wasabisystems.com
In-Reply-To: <3B9AF39F.6E7015D5@storm.ca>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 12:44 AM 9/9/2001 -0400, Sandy Harris wrote:
>Does using non-adaptive compression save the day?
Huffman coding using a fixed code table is not a bad way to go. You can
even peek at the characteristics of the input and choose a table based on
that... having standardised tables for English text, intel machine code,
MS-word documents, C code, other languages, etc. Fax machines do something
like this, with a huffman code table conditioned on a set of standard
documents, but I'm not sure whether it is just a single table or a set of
"choose one of these".
Greg.
Greg Rose INTERNET: ggr@qualcomm.com
Qualcomm Australia VOICE: +61-2-9817 4188 FAX: +61-2-9817 5199
Level 3, 230 Victoria Road, http://people.qualcomm.com/ggr/
Gladesville NSW 2111 232B EC8F 44C6 C853 D68F E107 E6BF CD2F 1081 A37C
---------------------------------------------------------------------
The Cryptography Mailing List
Unsubscribe by sending "unsubscribe cryptography" to majordomo@wasabisystems.com
