[Resource Topic] 2002/062: ABC - A Block Cipher

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ABC - A Block Cipher

Authors: Dieter Schmidt


The author proposes a block cipher wich is easy to implement in
software on modern 32 bit microprocessorsThe building blocks of the
cipher are from the block ciphers MMB and SAFER. The cipher may be
expanded for use with future 64 bit processors. Also a new diffusion
layer, developed from the SAFER diffusion layer is proposed. It has
complextity \mathcal{O}(n \enspace log \enspace n) and the author
conjectures that it is MDS. Diffusion layers currently known to be MDS
are based on matrices and thus have complexity \mathcal{O}(n^2).

ePrint: https://eprint.iacr.org/2002/062

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