Patent ID: 8296852

Claim:
A transponder comprising: a first memory area operable to store first information that is accessible only by read access internal to the transponder; a second memory area operable to store second information that is accessible by read access external to the transponder through an air interface, the second information having been generated from the first information using a key calculated from a public key of an asymmetric encryption method; and logic circuitry operable to: access a transmission from a base station, the transmission comprising an encrypted version of the first information generated by the base station using the second information in the second memory area as accessed by the base station; decrypt the encrypted version of the first information in the transmission to extract a decrypted version of the first information; compare the decrypted version of the first information extracted from the transmission to the first information stored in the first memory area; based on the comparing, provide the base station read or write access to the first, the second, or another memory area of the transponder.