Patent ID: 8138923
Filing Date: 2012-03-20
Classification: H04L

Abstract:
1. A radio-frequency identification (RFID) tag security system, comprising: a plurality of security servers each coupled between respective RFID tag reader devices and respective back-end systems, wherein a back-end system is configures to read tag data from and to write tag data to one or more RFID reader devices; and at least one database coupled to each security server, wherein the database is configurable to store a plurality of policies, and wherein each security server is configurable to analyze tag data read from and written to a respective tag reader device according to one or more of the policies, wherein analyzing comprises, determining whether there is a security stamp associated with the tag data: if there is a security stamp associated with the tag data, generating a second security stamp based on the tag data: and comparing the associated security stamp with the second security stamp to establish integrity of the associated tag data.