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PP-2 Block Cipher

Authors:
Krzysztof Bucholc
Krzysztof Chmiel
Anna Grocholewska-Czurylo
Janusz Stoklosa

Keywords: block ciphers; S-boxes; differential cryptanalysis; diffusion

Abstract:
The paper describes the rationale behind PP-2 block cipher and gives the details of the original design of this cipher. PP-2 block cipher is the result of continued development of the PP-1 block cipher, improving on performance, resistance against differential cryptanalysis and the speed of diffusion. Cipher structure is different for encryption and for decryption. Diffusion layer is based on multiple rotations. This paper shows that for block length n = 64 bits a global diffusion is reached after two rounds. Number of rounds is dependent on key size.

Pages: 162 to 168

Copyright: Copyright (c) IARIA, 2013

Publication date: August 25, 2013

Published in: conference

ISSN: 2162-2116

ISBN: 978-1-61208-298-1

Location: Barcelona, Spain

Dates: from August 25, 2013 to August 31, 2013