Patent ID: 9690949
Date: 2017-06-27
CPC Classifications: G06F,G06K,H04L,H04Q

Claim:
1. A method for a verification authority to authenticate Radio Frequency Identification (RFID) tags, the method comprising: transmitting a challenge to a proxy, the proxy configured to authenticate a plurality of RFID readers to the verification authority; receiving at least a proxy response; verifying the proxy response based on at least the proxy challenge and a proxy key; in response to verifying the proxy response, considering the plurality of RFID readers authenticated; receiving a tag-authentication request from a first RFID reader, the tag-authentication request including at least a tag identifier and a tag response; determining the first RFID reader is one of the plurality of authenticated RFID readers; verifying the tag response; and transmitting a tag-authenticity message based on the verification of the tag response.