FSE '97 Proceedings of the 4th International Workshop on Fast Software Encryption
Improved Cryptanalysis of Rijndael
FSE '00 Proceedings of the 7th International Workshop on Fast Software Encryption
FSE '02 Revised Papers from the 9th International Workshop on Fast Software Encryption
PRESENT: An Ultra-Lightweight Block Cipher
CHES '07 Proceedings of the 9th international workshop 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
CHES'11 Proceedings of the 13th international conference on Cryptographic hardware and embedded systems
Piccolo: an ultra-lightweight blockcipher
CHES'11 Proceedings of the 13th international conference on Cryptographic hardware and embedded systems
HIGHT: a new block cipher suitable for low-resource device
CHES'06 Proceedings of the 8th international conference on Cryptographic Hardware and Embedded Systems
Impossible differential attacks on reduced-round LBlock
ISPEC'12 Proceedings of the 8th international conference on Information Security Practice and Experience
Information Processing Letters
The 128-bit blockcipher CLEFIA
FSE'07 Proceedings of the 14th international conference on Fast Software Encryption
Improved related-key differential attacks on reduced-round LBlock
ICICS'12 Proceedings of the 14th international conference on Information and Communications Security
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The current paper presents an integral cryptanalysis in the single-key setting against light-weight block-cipher LBlock reduced to 22 rounds. Our attack uses the same 15-round integral distinguisher as the previous attacks, but many techniques are taken into consideration in order to achieve comprehensive understanding of the attack; choosing the best balanced-byte position, meet-in-the-middle technique to identify right key candidates, partial-sum technique, relations among subkeys, and combination of the exhaustive search with the integral analysis.