Camellia: A 128-Bit Block Cipher Suitable for Multiple Platforms - Design and Analysis
SAC '00 Proceedings of the 7th Annual International Workshop on Selected Areas in Cryptography
Higher Order Differential Attack of Camellia (II)
SAC '02 Revised Papers from the 9th Annual International Workshop on Selected Areas in Cryptography
ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Security of Camellia against Truncated Differential Cryptanalysis
FSE '01 Revised Papers from the 8th International Workshop on Fast Software Encryption
Improved Cryptanalysis of MISTY1
FSE '02 Revised Papers from the 9th International Workshop on Fast Software Encryption
Truncated Differential Cryptanalysis of Camellia
ICISC '01 Proceedings of the 4th International Conference Seoul on Information Security and Cryptology
Square Attack on Reduced Camellia Cipher
ICICS '01 Proceedings of the Third International Conference on Information and Communications Security
On the Security of CAMELLIA against the Square Attack
FSE '02 Revised Papers from the 9th International Workshop on Fast Software Encryption
Impossible differential cryptanalysis of reduced-round ARIA and Camellia
Journal of Computer Science and Technology
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
Square like attack on camellia
ICICS'07 Proceedings of the 9th international conference on Information and communications security
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
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
Collision attack and pseudorandomness of reduced-round camellia
SAC'04 Proceedings of the 11th international conference on Selected Areas in Cryptography
SAC'05 Proceedings of the 12th international conference on Selected Areas in Cryptography
New impossible differential cryptanalysis of reduced-round camellia
CANS'11 Proceedings of the 10th international conference on Cryptology and Network Security
Improved known-key distinguishers on Feistel-SP ciphers and application to camellia
ACISP'12 Proceedings of the 17th Australasian conference on Information Security and Privacy
On computational complexity of impossible differential cryptanalysis
Information Processing Letters
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Camellia is one of the most worldwide used block ciphers, which has been selected as a standard by ISO/IEC. In this paper, we propose several new 7-round impossible differentials of Camellia with 2 FL/FL−1 layers, which turn out to be the first 7-round impossible differentials with 2 FL/FL−1 layers. Combined with some basic techniques including the early abort approach and the key schedule consideration, we achieve the impossible differential attacks on 11-round Camellia-128, 11-round Camellia-192, 12-round Camellia-192, and 14-round Camellia-256, and the time complexity are 2123.8, 2121.7, 2171.4 and 2238.3 respectively. As far as we know, these are the best results against the reduced-round variants of Camellia. Especially, we give the first attack on 11-round Camellia-128 reduced version with FL/FL−1 layers.