The Design of Rijndael
Differential Cryptanalysis of DES-like Cryptosystems
CRYPTO '90 Proceedings of the 10th Annual International Cryptology Conference on Advances in Cryptology
Impossible differential cryptanalysis of reduced-round ARIA and Camellia
Journal of Computer Science and Technology
PRESENT: An Ultra-Lightweight Block Cipher
CHES '07 Proceedings of the 9th international workshop on Cryptographic Hardware and Embedded Systems
Impossible Differential Cryptanalysis of CLEFIA
Fast Software Encryption
New Impossible Differential Attacks on AES
INDOCRYPT '08 Proceedings of the 9th International Conference on Cryptology in India: Progress in Cryptology
An Improved Impossible Differential Attack on MISTY1
ASIACRYPT '08 Proceedings of the 14th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
KATAN and KTANTAN -- A Family of Small and Efficient Hardware-Oriented Block Ciphers
CHES '09 Proceedings of the 11th International Workshop on Cryptographic Hardware and Embedded Systems
New Results on Impossible Differential Cryptanalysis of Reduced---Round Camellia---128
Selected Areas in Cryptography
Cryptanalysis of Skipjack reduced to 31 rounds using impossible differentials
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Improving the efficiency of impossible differential cryptanalysis of reduced Camellia and MISTY1
CT-RSA'08 Proceedings of the 2008 The Cryptopgraphers' Track at the RSA conference on Topics in cryptology
PRINTcipher: a block cipher for IC-printing
CHES'10 Proceedings of the 12th international conference on Cryptographic hardware and embedded systems
LBlock: a lightweight block cipher
ACNS'11 Proceedings of the 9th international conference on Applied cryptography and network security
New impossible differential attacks of reduced-round Camellia-192 and Camellia-256
ACISP'11 Proceedings of the 16th Australasian conference on Information security and privacy
Cube cryptanalysis of LBlock with noisy leakage
ICISC'12 Proceedings of the 15th international conference on Information Security and Cryptology
Comprehensive study of integral analysis on 22-round LBlock
ICISC'12 Proceedings of the 15th international conference on Information Security and Cryptology
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LBlock is a lightweight block cipher with 32 rounds, which can be implemented efficiently not only in hardware environment but also in software platforms. In this paper, by exploiting the structure of LBlock and the redundancy in its key schedule, we propose an impossible differential attack on 21-round LBlock based on a 14-round impossible differential. The data and time complexities are about 262.5 chosen plaintexts and 273.7 21-round encryptions, respectively. As far as we know, these results are the currently best results on LBlock in the single key scenario.