RBS: Redundant Bit Security Algorithm for RFID Systems

Abstract

In this paper, we propose a symmetric encryption algorithm for RFID systems called RBS (Redundant Bit Security). RBS is based on inserting redundant bits into the original data bits. The location of redundant bits inside the transmitted data represents the secret key. The redundant bits are generated by Light Weight Mac algorithm in order to provide integrity and authentication as well. The implemented hardware architecture meets the resource constraints of RFID systems, and encryption and decryption time is shorter compared to existing algorithms. I.

SCARS: Simplified cryptographic algorithm for RFID systems

“…RBS uses MAC [5]). Our approach provides confidentiality with integrity to the message independently, without support from any other algorithms.…”

“…Jeddi et al [5] proposed a symmetric key encryption algorithm called RBS (Redundant Bit Security) to offer confidentiality with integrity for RFID systems. They use the MAC algorithm to generate redundant bits, which helps offer integrity to the message.…”

“…In this section, we present a qualitative analysis of our algorithm, discussing its performance with respect to various attacks and also present a cryptanalysis. Further, we include a comparison of the logical gate estimation between our approach and the RBS approach [5].…”

“…However, RFID systems have less computational power and storage capabilities that restrict them from performing sophisticated cryptographic operations [3]. As a result, researchers are moving towards proposing light weight encryption algorithms such as Hummingbird [4], RBS (Redundant Bit Security algorithm) [5], etc.…”

A Novel Authenticated Encryption Algorithm for RFID Systems

“…Therefore, the plaintext must be manipulated before being merged with redundant data. In the first version of this algorithm [11], we used redundant data as keystream for manipulation the plaintext. This way, the algorithm was vulnerable to some attacks as there was a relation between redundant data and manipulated plaintext.…”