Block Cipher Circuit and Protocol for RFID in UHF Band

UHF 대역 RFID 시스템을 위한 블록 암호 회로와 프로토콜

  • 이상진 (충북대학교 정보통신공학과) ;
  • 박경창 (충북대학교 정보통신공학과) ;
  • 김한벼리 (충북대학교 정보통신공학과) ;
  • 김승열 (충북대학교 정보통신공학과) ;
  • 유영갑 (충북대학교 정보통신공학과)
  • Published : 2009.11.28


This paper proposes a hardware structure and associated finite state machine designs sharing key scheduling circuitry to enhance the performance of the block cypher algorithm, HIGHT. It also introduces an efficient protocol applicable to RFID systems comprising the HIGHT block cipher algorithm. The new HIGHT structure occupies an area size small enough to accommodate tag applications. The structure yields twice higher performance them conventional HIGHT algorithms. The proposed protocol overcomes the security vulnerability of RFID tags and thereby strengthens the security of personal information.


RFID;UHF Band;Ultra-weight Block Cipher;HIGHT;Protocol


  1. 임영일, 유영갑, 조경록, "수동형 RFID 태그에 적합한 암호회로 설계", 전자공학회논문지, 제41권 제1호, 2004.
  2. D. Hong et al. "HIGHT : A new block cipher suitable for low-resource device," CHES 2006, LNCS 4249, pp.46-59, 2006.
  3. D. Hong et al., "HIGHT: A new block cipher suitable for low-resource device," Lecture Notes in Computer Science, Vol.4249, pp.46-59, Oct. 2006.
  4. M. Feldhofer, J. Wolkerstorfer, and V. Rijmen, "AES implementation on grain of sand," IEE Proceedings on Information Security, Vol.152, No.1, pp.13-20, June 2005.
  5. A. Satoh, "A compact rijndael hardware architecture with S-Box optimization," Lecture Notes in Computer Science, Vol. 2248, No.1, pp.46-59, Jan. 2001.
  6. M. Feldhofer, S. Dominikus, and J. Wolkerstorfer, "Strong authentication for RFID systems using the AES algorithm," In Proc, Workshop on Cryptographic Hardware and Embedded Systems(CHES2004), pp.357-370, 2004.
  7. EPCglobal IncTM, "EPCTM Radio -Frequency Identity Protocols Class-1 Generation-2 UHF RFID Protocol for Communications at 800MHz-960MHz," Version 1.0.9 , Jan. 2005.