Abstract
Camellia, a 128–bit block cipher which has been accepted by ISO/IEC as an international standard, is increasingly being used in many cryptographic applications. In this paper, using the redundancy in the key schedule and accelerating the filtration of wrong pairs, we present a new impossible differential attack to reduced–round Camellia. By this attack 12–round Camellia–128 without FL/FL − 1 functions and whitening is breakable with a total complexity of about 2116.6 encryptions and 2116.3 chosen plaintexts. In terms of the numbers of the attacked rounds, our attack is better than any previously known attack on Camellia–128.
Chapter PDF
References
Aoki, K., Ichikawa, T., Kanda, M., Matsui, M., Moriai, S., Nakajima, J., Tokita, T.: Camellia: a 128-bit Block Cipher Suitable for Multiple Platforms-Design and Analysis. In: Stinson, D.R., Tavares, S. (eds.) SAC 2000. LNCS, vol. 2012, pp. 39–56. Springer, Heidelberg (2001)
Aoki, K., Ichikawa, T., Kanda, M., Matsui, M., Moriai, S., Nakajima, J., Tokita, T.: Specification of Camellia – a 128-bit Block Cipher. version 2.0 (2001), http://info.isl.ntt.co.jp/crypt/eng/camellia/specifications.html
Biham, E., Biryukov, A., Shamir, A.: Cryptanalysis of Skipjack Reduced to 31 Rounds Using Impossible Differentials. In: Stern, J. (ed.) EUROCRYPT 1999. LNCS, vol. 1592, pp. 12–23. Springer, Heidelberg (1999)
Biham, E., Shamir, A.: Differential Cryptanalysis of the Data Encryption Standard. Springer, Heidelberg (1993)
CRYPTREC – Cryptography Research and Evaluation Committees, report, Archive (2002), http://www.ipa.go.jp/security/enc/CRYPTREC/index-e.html
Duo, L., Li, C., Feng, K.: Square Like Attack on Camellia. In: Qing, S., Imai, H., Wang, G. (eds.) ICICS 2007. LNCS, vol. 4861, pp. 269–283. Springer, Heidelberg (2007)
Hatano, Y., Sekine, H., Kaneko, T.: Higher Order Differential Attack of Camellia (II). In: Nyberg, K., Heys, H.M. (eds.) SAC 2002. LNCS, vol. 2595, pp. 129–146. Springer, Heidelberg (2003)
He, Y., Qing, S.: Square Attack on Reduced Camellia Cipher. In: Qing, S., Okamoto, T., Zhou, J. (eds.) ICICS 2001. LNCS, vol. 2229, pp. 238–245. Springer, Heidelberg (2001)
International Standardization of Organization (ISO), International Standard - ISO/IEC 18033-3, Information technology - Security techniques - Encryption algorithms - Part 3: Block ciphers (July 2005)
Kanda, M., Matsumoto, T.: Security of Camellia against Truncated Differential Cryptanalysis. In: Matsui, M. (ed.) FSE 2001. LNCS, vol. 2355, pp. 119–137. Springer, Heidelberg (2002)
Kawabata, T., Kaneko, T.: A Study on Higher Order Differential Attack of Camellia. In: The 2nd open NESSIE workshop (2001)
Knudsen, L.R.: DEAL – a 128-bit Block Cipher. Technical report, Department of Informatics, University of Bergen, Norway (1998)
Lee, S., Hong, S., Lee, S., Lim, J., Yoon, S.: Truncated Differential Cryptanalysis of Camellia. In: Kim, K.-c. (ed.) ICISC 2001. LNCS, vol. 2288, pp. 32–38. Springer, Heidelberg (2002)
Lei, D., Chao, L., Feng, K.: New Observation on Camellia. In: Preneel, B., Tavares, S. (eds.) SAC 2005. LNCS, vol. 3897, pp. 51–64. Springer, Heidelberg (2006)
Lu, J.: Cryptanalysis of Block Ciphers. PhD Thesis, Department of Mathematics, Royal Holloway, University of London, England (2008)
Lu, J., Kim, J., Keller, N., Dunkelman, O.: Improving the Efficiency of Impossible Differential Cryptanalysis of Reduced Camellia and MISTY1. In: Malkin, T.G. (ed.) CT-RSA 2008. LNCS, vol. 4964, pp. 370–386. Springer, Heidelberg (2008)
NESSIE – New European Schemes for Signatures, Integrity, and Encryption, final report of European project IST-1999-12324. Archive (1999), https://www.cosic.esat.kuleuven.be/nessie/Bookv015.pdf
NTT Information Sharing Platform Laboratories: Internationally Standardized Encryption Algorithm from Japan“Camellia”, http://info.isl.ntt.co.jp/crypt/camellia/dl/Camellia20061108v4_eng.pdf
Shirai, T.: Differential, Linear, Boomerang and Rectangle Cryptanalysis of Reduced-Round Camellia. In: Proceedings of 3rd NESSIE workshop (November 2002)
Sugita, M., Kobara, K., Imai, H.: Security of Reduced Version of the Block Cipher Camellia against Truncated and Impossible Differential Cryptanalysis. In: Boyd, C. (ed.) ASIACRYPT 2001. LNCS, vol. 2248, pp. 193–207. Springer, Heidelberg (2001)
Wu, W., Feng, D., Chen, H.: Collision Attack and Pseudorandomness of Reduced-Round Camellia. In: Handschuh, H., Hasan, M.A. (eds.) SAC 2004. LNCS, vol. 3357, pp. 252–266. Springer, Heidelberg (2004)
Wu, W., Zhang, L., Zhang, W.: Improved Impossible Differential Cryptanalysis of Reduced-Round Camellia. In: Avanzi, R., Keliher, L., Sica, F. (eds.) SAC 2008. LNCS, vol. 5381, pp. 442–456. Springer, Heidelberg (2009)
Wu, W., Zhang, W., Feng, D.: Impossible Differential Cryptanalysis of Reduced-Round ARIA and Camellia. Journal of Computer Science and Technology 22(3), 449–456 (2007)
Yeom, Y., Park, S., Kim, I.: On the security of Camellia against the Square attack. In: Daemen, J., Rijmen, V. (eds.) FSE 2002. LNCS, vol. 2365, pp. 89–99. Springer, Heidelberg (2002)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Mala, H., Shakiba, M., Dakhilalian, M., Bagherikaram, G. (2009). New Results on Impossible Differential Cryptanalysis of Reduced–Round Camellia–128. In: Jacobson, M.J., Rijmen, V., Safavi-Naini, R. (eds) Selected Areas in Cryptography. SAC 2009. Lecture Notes in Computer Science, vol 5867. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-05445-7_18
Download citation
DOI: https://doi.org/10.1007/978-3-642-05445-7_18
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-05443-3
Online ISBN: 978-3-642-05445-7
eBook Packages: Computer ScienceComputer Science (R0)