Advertisement

Improved DST Cryptanalysis of IDEA

  • Eyüp Serdar Ayaz
  • Ali Aydın Selçuk
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4356)

Abstract

In this paper, we show how the Demirci-Selcuk-Ture attack, which is currently the deepest penetrating attack on the IDEA block cipher, can be improved significantly in performance. The improvements presented reduce the attack’s plaintext, memory, precomputation time, and key search time complexities. These improvements also make a practical implementation of the attack on reduced versions of IDEA possible, enabling the first experimental verifications of the DST attack.

Keywords

Block Cipher Variable Part Outer Addition Partial Decryption Extra Elimination 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    Biham, E., Biryukov, A., Shamir, A.: Miss in the Middle Attacks on IDEA and Khufu. In: Knudsen, L.R. (ed.) FSE 1999. LNCS, vol. 1636, pp. 124–138. Springer, Heidelberg (1999)CrossRefGoogle Scholar
  2. 2.
    Biryukov, A., Nakahara Jr., J., Preneel, B., Vandewalle, J.: New Weak-Key Classes of IDEA. In: Deng, R.H., Qing, S., Bao, F., Zhou, J. (eds.) ICICS 2002. LNCS, vol. 2513, pp. 315–326. Springer, Heidelberg (2002)CrossRefGoogle Scholar
  3. 3.
    Borst, J., Knudsen, L.R., Rijmen, V.: Two Attacks on Reduced IDEA (extended abstract). In: Fumy, W. (ed.) EUROCRYPT 1997. LNCS, vol. 1233, pp. 1–13. Springer, Heidelberg (1997)Google Scholar
  4. 4.
    Daemen, J., Govaerts, R., Vandewalle, J.: Cryptanalysis of 2.5 round of IDEA (extended abstract), Technical Report ESAC-COSIC Technical Report 93/1, Department Of Electrical Engineering, Katholieke Universiteit Leuven (March 1993)Google Scholar
  5. 5.
    Daemen, J., Govaerts, R., Vandewalle, J.: Weak Keys of IDEA. In: Stinson, D.R. (ed.) CRYPTO 1993. LNCS, vol. 773, pp. 224–231. Springer, Heidelberg (1994)Google Scholar
  6. 6.
    Demirci, H.: Square-like Attacks on Reduced Rounds of IDEA. In: Nyberg, K., Heys, H.M. (eds.) SAC 2002. LNCS, vol. 2595, pp. 147–159. Springer, Heidelberg (2003)CrossRefGoogle Scholar
  7. 7.
    Demirci, H., Selçuk, A.A., Türe, E.: A New Meet-in-the-Middle Attack on the IDEA Block Cipher. In: Matsui, M., Zuccherato, R.J. (eds.) SAC 2003. LNCS, vol. 3006, pp. 117–129. Springer, Heidelberg (2004)Google Scholar
  8. 8.
    Hawkes, P.: Differential-Linear Weak Key Classes of IDEA. In: Nyberg, K. (ed.) EUROCRYPT 1998. LNCS, vol. 1403, pp. 112–126. Springer, Heidelberg (1998)CrossRefGoogle Scholar
  9. 9.
    Hawkes, P., O’Connor, L.: On Applying Linear Cryptanalysis to IDEA. In: Kim, K.-c., Matsumoto, T. (eds.) ASIACRYPT 1996. LNCS, vol. 1163, pp. 105–115. Springer, Heidelberg (1996)CrossRefGoogle Scholar
  10. 10.
    Junod, P.: New attacks against reduced-round versions of IDEA. In: Gilbert, H., Handschuh, H. (eds.) FSE 2005. LNCS, vol. 3557, pp. 384–397. Springer, Heidelberg (2005)Google Scholar
  11. 11.
    Lai, X., Massey, J.L.: A Proposal for a New Block Encryption Standard. In: Damgård, I.B. (ed.) EUROCRYPT 1990. LNCS, vol. 473, pp. 389–404. Springer, Heidelberg (1991)Google Scholar
  12. 12.
    Lai, X., Massey, J.L., Murphy, S.: Markov Ciphers and Differential Cryptanalysis. In: Davies, D.W. (ed.) EUROCRYPT 1991. LNCS, vol. 547, pp. 17–38. Springer, Heidelberg (1991)Google Scholar
  13. 13.
    Meier, W.: On the Security of the IDEA Block Cipher. In: Helleseth, T. (ed.) EUROCRYPT 1993. LNCS, vol. 765, pp. 371–385. Springer, Heidelberg (1994)Google Scholar
  14. 14.
    Nakahara Jr., J., Barreto, P.S.L.M., Preneel, B., Vandewalle, J., Kim, H.Y.: Square Attacks Against Reduced-Round PES and IDEA Block Ciphers. In: 23rd Symposium on Information Theory in the Benelux. Louvain-la-Neuve, pp. 187–195 (2002)Google Scholar
  15. 15.
    Nakahara, J., Preneel, B., Vandewalle, J.: The Biryukov-Demirci attack on reduced-round versions of IDEA and MESH block ciphers. In: Wang, H., Pieprzyk, J., Varadharajan, V. (eds.) ACISP 2004. LNCS, vol. 3108, pp. 98–109. Springer, Heidelberg (2004)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2007

Authors and Affiliations

  • Eyüp Serdar Ayaz
    • 1
  • Ali Aydın Selçuk
    • 1
  1. 1.Department of Computer Engineering, Bilkent University, Ankara, 06800Turkey

Personalised recommendations