Cryptology ePrint Archive: Report 2008/343

Efficient RFID authentication protocols based on pseudorandom sequence generators

Jooyoung Lee and Yongjin Yeom

Abstract: In this paper, we introduce a new class of PRSGs, called partitioned pseudorandom sequence generators(PPRSGs), and propose an RFID authentication protocol using a PPRSG, called S-protocol. Since most existing stream ciphers can be regarded as secure PPRSGs, and stream ciphers outperform other types of symmetric key primitives such as block ciphers and hash functions in terms of power, performance and gate size, S-protocol is expected to be suitable for use in highly constrained environments such as RFID systems. We present a formal proof that guarantees resistance of S-protocol to desynchronization and tag-impersonation attacks. Speci¯cally, we reduce the availability of S-protocol to pseudorandomness of the underlying PPRSG, and the security of the protocol to the availability. Finally, we give a modi¯cation of S-protocol, called S¤-protocol, that provides mutual authentication of tag and reader.

Category / Keywords: authentication protocol, pseudorandom sequence generator, stream cipher, RFID

Publication Info: To appear in Designs, Codes and Cryptography

Date: received 5 Aug 2008, last revised 5 Dec 2008

Contact author: jlee05 at ensec re kr

Available format(s): PDF | BibTeX Citation

Version: 20081205:085947 (All versions of this report)

Short URL: ia.cr/2008/343

Discussion forum: Show discussion | Start new discussion