Bit-pattern based integral attack


Autoria(s): Dawson, Ed; Henricksen, Matthew; Raddum, Havard; Z'aba, Muhammad Reza
Contribuinte(s)

Nyberg, Kaisa

Data(s)

2008

Resumo

Integral attacks are well-known to be effective against byte-based block ciphers. In this document, we outline how to launch integral attacks against bit-based block ciphers. This new type of integral attack traces the propagation of the plaintext structure at bit-level by incorporating bit-pattern based notations. The new notation gives the attacker more details about the properties of a structure of cipher blocks. The main difference from ordinary integral attacks is that we look at the pattern the bits in a specific position in the cipher block has through the structure. The bit-pattern based integral attack is applied to Noekeon, Serpent and present reduced up to 5, 6 and 7 rounds, respectively. This includes the first attacks on Noekeon and present using integral cryptanalysis. All attacks manage to recover the full subkey of the final round.

Identificador

http://eprints.qut.edu.au/30561/

Publicador

Springer Berlin / Heidelberg

Relação

DOI:10.1007/978-3-540-71039-4_23

Dawson, Ed, Henricksen, Matthew, Raddum, Havard, & Z'aba, Muhammad Reza (2008) Bit-pattern based integral attack. Fast Software Encryption (LNCS), 5086, pp. 363-381.

Fonte

Faculty of Science and Technology; Information Security Institute

Palavras-Chave #080402 Data Encryption #block ciphers, integral cryptanalysis, Serpent, Noekeon, PRESENT
Tipo

Journal Article