RE:
Cipher-Chain-Cipher Mode of Operation for Improving the Security of Block Ciphers
by Thomas C. Jones
Sorry! but Ross Anderson <Ross.Anderson@cl.cam.ac.uk> writes :
This doesn't stop differential cryptanalysis. In fact, Biham has developed a whole theory on modes of operation which will come out at Crypto 94. The nub of the theory is that fancy chaining modes don't buy you anything; you're better to use your algorithm n times to replace DES in standard CBC or CFB.
I have an Adobe.ps file of Bihams paper from Ross Regards, __o __o Ed \<, \<, _________________________________________()/ ()_____()/ ()_____________ Ed Switalski email: eswitals@bnr.co.uk Dept GM21, BNR Europe Ltd, Oakleigh Rd South, tel: +44 (0)81 945-2924 New Southgate, fax: +44 (0)81 945-3116 London, N11 1HB LON40, internal ESN (730) 2924 _______________________________________________________________________