Research and Application of Access Control Technique in 3D Virtual Reality System OpenSim

Access control in 3-D virtual reality systems is a wide and still growing topic. A good access control model is a premise for data security, and makes the whole system play its functions reliably. We compare access control techniques in 3D system OpenSim with that of other virtual reality systems. By using a general extended scheme, we analyze the model and the rule of access control in OpenSim. In this scheme, we provide a method of expanding network services for special proposes. Meanwhile, it verifies the feasibility of developing OpenSim's services on the basis of data security

Security protocol based on random key generation for an Rfid system

Radio Frequency Identification (RFID) is a technology, which describes the transmission of unique information by a wireless device, over Radio waves, when prompted or read by a compatible reader; The basic components in implementing RFID are RFID tags which are small microchips attached to a radio antenna, mounted on a substrate, and a wireless transceiver/reader that queries the RFID tags; This thesis deals with research issues related to security aspects in the communication between an RFID tag and its reader. More precisely, it deals with a new, simple and efficient security protocol based on an encryption that uses the concept of regular public key regeneration, which can be effortlessly adopted in an RFID application