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- Title
Security analysis of pure DDP-based cipher proper for multimedia and ubiquitous device.
- Authors
Changhoon Lee; Sangjin Lee; Jong Hyuk Park; Hussain, Sajid; Jun Hwan Song
- 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.
- Subjects
COMPUTER input-output equipment -- Security measures; UBIQUITOUS computing; MULTIMEDIA systems; CRYPTOGRAPHY; COMPUTER security; CIPHERS; COMPUTER network security
- Publication
Telecommunication Systems, 2010, Vol 44, Issue 3/4, p267
- ISSN
1018-4864
- Publication type
Article
- DOI
10.1007/s11235-009-9264-8