Compression side channel
Greg Rose
ggr at qualcomm.com
Sun Sep 9 21:11:43 EDT 2001
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 at qualcomm.com
Qualcomm Australia VOICE: +61-2-9817 4188 FAX: +61-2-9817 5199
Level 3, 230 Victoria Road, http://people.qualcomm.com/ggr/
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