Jump to content

Talk:Common Scrambling Algorithm

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia
This is an old revision of this page, as edited by 85.152.200.43 (talk) at 18:36, 9 July 2009. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Does anyone actually know how brute-force can be improved on, or if it can be improved on? topynate 23:39, 20 Sep 2004 (UTC)

I haven't heard of anything, but it wouldn't be surprising — it certainly wouldn't be the first time that a reverse-engineered proprietary encryption algorithm had been found to be weak! — Matt 12:02, 21 Sep 2004 (UTC)

Can anybody reference where to find the information about bytes 3 and 7 being checksums or if you could explain how to calculate them. - Aldebarn42

Byte form AA BB CC xx DD EE FF yy -- xx and yy are checksums, xx=AA+BB+CC, yy=DD+EE+FF. I suspect this is in the BISS specification somewhere. So that's bytes 3 and 7 when starting count at 0. —Preceding unsigned comment added by 87.194.114.122 (talk) 00:36, 23 March 2008 (UTC)[reply]


The entry says:

This fact allows practical space-time tradeoff attack where 32 bits are brute-forced, 16 bits are calculated with memory tables built from ciphertext, and 16 bits calculated as checksum with a running time of O(216)+O(232), which can be less than a second if implemented in FPGA hardware or on scalable architecture like cell processor.

Is there any reference to this affirmations?

Retrieved from "https://en.wikipedia.org/w/index.php?title=Talk:Common_Scrambling_Algorithm&oldid=301233731"