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Cryptanalysis of mCrypton—A lightweight block cipher for security of RFID tags and sensors
Author(s) -
Mala Hamid,
Dakhilalian Mohammad,
Shakiba Mohsen
Publication year - 2012
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.1248
Subject(s) - block cipher , computer science , differential cryptanalysis , linear cryptanalysis , boomerang attack , key (lock) , computer security , higher order differential cryptanalysis , impossible differential cryptanalysis , slide attack , cryptanalysis , block (permutation group theory) , cipher , construct (python library) , cryptography , embedded system , computer network , encryption , mathematics , geometry
SUMMARY mCrypton is a 64‐bit lightweight block cipher designed for use in low‐cost and resource‐constrained applications such as RFID tags and sensors in wireless sensor networks. In this paper, we investigate the strength of this cipher against related‐key impossible differential cryptanalysis. First, we construct two 6‐round related‐key impossible differentials for mCrypton‐96 and mCrypton‐128. Then, using these distinguishers, we present 9‐round related‐key impossible differential attacks on these two versions. The attack on mCrypton‐96 requires 2 59.9 chosen plaintexts, and has a time complexity of about 2 74.9 encryptions. The data and time complexities for the attack on mCrypton‐128 are 2 59.7 chosen plaintexts and 2 66.7 encryptions, respectively. Copyright © 2011 John Wiley & Sons, Ltd.