A new meet-in-the-middle attack on the IDEA block cipher

Demirci H., Selcuk A., Ture E.

SELECTED AREAS IN CRYPTOGRAPHY, cilt.3006, ss.117-129, 2004 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 3006
  • Basım Tarihi: 2004
  • Dergi Adı: SELECTED AREAS IN CRYPTOGRAPHY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.117-129
  • Marmara Üniversitesi Adresli: Hayır

Özet

In this paper we introduce a novel meet-in-the-middle attack on the IDEA block cipher. The attack consists of a precomputation and an elimination phase. The attack reduces the number of required plaintexts significantly for 4 and 4.5 rounds, and, to the best of our knowledge, it is the first attack on the 5-round IDEA.