System and method capable of verifying contactless sensor tag

摘要

A system and a method capable of verifying contactless sensor tag, the system comprising: a reading device, served to generate a first verification code according to a first dynamic value and generate an authority request according to an authority code; a sensor tag, used to obtain the first verification code of the reading device in a contactless way, generate a second verification code according to a second dynamic value, and process a ciphering calculation according to an identification code, the first verification code and the second verification code for generating the authority code, and send the authority code to the reading device in a contactless way; and a verifying device, used to receive the authority request of the reading device, and perform a deciphering calculation on the authority request for obtaining the first dynamic value and the second dynamic value for determining whether the sensor tag is real.

主权项

1. A system for verifying a contactless sensor tag, comprising a reading device, a sensor tag, and a verifying device, wherein:
the reading device generates a first verification code according to a first dynamic value and sends the first verification code to the sensor tag, and generates an authority request according to an authority code received from the sensor tag and sends the authority request to the verifying device; the sensor tag obtains said first verification code from said reading device in a contactless way, generates a second verification code according to a second dynamic value, performs a ciphering operation on data including an identification code, said first verification code and said second verification code to generating said authority code, and sends said authority code to said reading device in said contactless way; and the verifying device receives said authority request from said reading device, performs a deciphering operation on said authority request to obtain said first dynamic value and said second dynamic value, performs a first comparing operation on said first dynamic value and a third dynamic value to generate a first difference value, performs a second comparing operation on said second dynamic value and a fourth dynamic value to generate a second difference value, and determines whether said reading device is real according to said first difference value and determines whether said sensor tag is real according to said second difference value, wherein said deciphering operation corresponds to said ciphering operation.