Security analysis of the keyschedule of ARIA-128

Hyungchul Kang, Yuseop Lee, Kitae Jeong, Jaechul Sung, Seokhie Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A Korean standard block cipher ARIA is a 128-bit block cipher supporting 128-, 192- and 256-bit secret keys. It is well known that an attacker should obtain at least four consecutive round keys or particular two round keys in order to recover the secret key of ARIA-128. In this paper, we propose the method to recover the secret key by using only the last round key. The proposed method is based on a guess-and-determine attack, which requires the computational complexity of . To our knowledge, this result did not introduced so far.

Original languageEnglish
Title of host publicationComputer Science and Its Applications, CSA 2012
Pages243-251
Number of pages9
DOIs
Publication statusPublished - 2012
Event4th FTRA International Conference on Computer Science and Its Applications, CSA 2012 - Jeju Island, Korea, Republic of
Duration: 2012 Nov 222012 Nov 25

Publication series

NameLecture Notes in Electrical Engineering
Volume203 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Other

Other4th FTRA International Conference on Computer Science and Its Applications, CSA 2012
CountryKorea, Republic of
CityJeju Island
Period12/11/2212/11/25

Keywords

  • ARIA-128
  • Block cipher
  • Guess-and-determine attack
  • Keyschedule

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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  • Cite this

    Kang, H., Lee, Y., Jeong, K., Sung, J., & Hong, S. (2012). Security analysis of the keyschedule of ARIA-128. In Computer Science and Its Applications, CSA 2012 (pp. 243-251). (Lecture Notes in Electrical Engineering; Vol. 203 LNEE). https://doi.org/10.1007/978-94-007-5699-1_25