Science & Engineering Research Support soCiety (SERSC)
Several categories of RFID authentication protocols have been proposed recently among which the researchers introduced a novel research direction, named yoking proof. It is used to solve the problem that two tags have to be scanned simultaneously for some reasons. Afterwards, the yoking proof was developed into the grouping proof protocol and many such protocols have been presented. However, there are some flaws on security or computational overhead. Based on the existing grouping proof protocols, a new method on key distribution is developed in this paper by means of distributing the points on straight lines to the entities.