Security analysis of pure DDP-based cipher proper for multimedia and ubiquitous device

Changhoon Lee, Sangjin Lee, Jong Hyuk Park, Sajid Hussain, Jun Hwan Song

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

DDP-64, based on various controlled operations, is a 64-bit Feistel-like block cipher consisting of 10 rounds with a 128-bit key. It was designed to attempt to have a high security level and a high speed performance in hardware on ubiquitous computing systems and multimedia. In this paper, however, we show that DDP-64 doesn't have a high security level, more precisely, we show that it is vulnerable to related-key differential attack. This attack, which is much faster than the key exhaustive search, requires about 254 data and 254 time complexities. This work is the first known cryptanalytic result on DDP-64 so far.

Original languageEnglish
Pages (from-to)267-279
Number of pages13
JournalTelecommunication Systems
Volume44
Issue number3-4
DOIs
Publication statusPublished - 2010 Aug 1

Keywords

  • Block cipher
  • Data-dependent permutation
  • DDP-64
  • Differential cryptanalysis
  • Related-key attack
  • Ubiquitous

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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