A hidden mutual authentication protocol for low-cost RFID tags

Jung Shian Li, Kun Hsuan Liu

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


Radio-frequency identification (RFID) technology enables the identification and tracking of objects by means of the wireless signals emitted by a tag attached to the objects of interest. Without adequate protection, however, malicious attackers can easily eavesdrop, scan or forge the information within the tag, thereby threatening the integrity of the system. Previous research has shown that the basic security requirements of RFID systems, i.e. identity authentication, information privacy and location privacy, can be satisfied using conventional cryptographic components. However, such components are expensive, and therefore conflict with the general requirement for low-cost tag designs. Accordingly, this paper presents a low-cost challenge-response security protocol designated as the hidden mutual authentication protocol (HMAP) to accomplish both a mutual authentication capability between the tag and the reader and information privacy. The results show that HMAP provides an efficient means of concealing the authentication messages exchanged between the tag and the reader and is robust toward replay attacks. In addition, it is shown that HMAP is easily extended to provide complete location privacy by utilizing a hash function to generate different tag identifiers in each authentication session.

Original languageEnglish
Pages (from-to)1196-1211
Number of pages16
JournalInternational Journal of Communication Systems
Issue number9
Publication statusPublished - 2011 Sep

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


Dive into the research topics of 'A hidden mutual authentication protocol for low-cost RFID tags'. Together they form a unique fingerprint.

Cite this