Zero-correlation linear cryptanalysis of reduced-round LBlock
نویسندگان
چکیده
منابع مشابه
Zero-correlation linear cryptanalysis of reduced-round LBlock
Zero-correlation linear attack is a new method for cryptanalysis of block ciphers developed by Bogdanov et al. in 2012. In this paper we adapt the matrix method to find zerocorrelation linear approximations. Then we present several zero-correlation linear approximations for 14 rounds of LBlock and describe a cryptanalysis for 22 rounds of the reduced LBlock. After biclique attacks on LBlock rev...
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The MISTY1 algorithm, proposed by Matsui in FSE 1997, is a block cipher with a 64-bit block size and a 128-bit key size. It was recommended by the European NESSIE project and the CRYPTREC project, and became an RFC in 2002 and an ISO standard in 2005, respectively. Up to now, MISTY1 has attracted extensive attention and interests, and its security has been analysed against a wide range of crypt...
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In this paper, we improve the impossible differential attack on 20-round LBlock given in the design paper of the LBlock cipher. Using relations between the round keys we attack on 21-round and 22-round LBlock with a complexity of 2 and 2 encryptions respectively. We use the same 14-round impossible differential characteristic observed by the designers to attack on 21 rounds and another 14-round...
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Camellia is one of the widely used block ciphers, which has been included in the NESSIE block cipher portfolio and selected as a standard by ISO/IEC. In this study, the authors observe that there exist some interesting properties of the FL/FL functions in Camellia. With this observation they derive some weak keys for the cipher, based on which they present the first known 8-round zero-correlati...
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ژورنال
عنوان ژورنال: Designs, Codes and Cryptography
سال: 2014
ISSN: 0925-1022,1573-7586
DOI: 10.1007/s10623-014-9976-y