Active RFID System with Cryptography and Authentication Mechanisms *

Radio frequency identification (RFID) systems have recently been used in a large number of applications. Security and privacy issues have also imposed significant challenges on these systems. Cryptography and authentication protocols have been utilized to effectively solve the security and privacy problems in RFID systems. In this paper, we integrate public key encryption, embedded computation, and wireless communication technologies into the active RFID system that we proposed with cryptography and authentication mechanisms. In our proposed active RFID system, a secure RFID Tag intermittently transmits cipher text to a RFID Reader which then transmits in multi-hop relaying to a back-end platform to perform data comparison for authentication. In addition, the digital signature scheme – Tame Transformation Signatures (TTS) has the advantages of high security, high-speed key generation, signature, and suitability to embedded systems and is thus suitable to be used in our authentication system. It is used in our proposed system to protect the plain text. The TTS algorithm is from the family of asymmetric public key systems and thus has superiority such as better security, fast key generation, complex algorithm, and low signature delay. The TTS algorith