METHOD AND DEVICE FOR INCREASED RFID TRANSMISSION SECURITY
First Claim
1. A method of controlling storage in an RFID tag communicating with an RFID reader, said method performed in the RFID tag and comprising the steps of:
- receiving a request to write,generating random data,sending the random data,receiving encrypted information,decrypting the received information by using the random data, andstoring the decrypted information.
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Accused Products
Abstract
A method and system for secure RFID system communication is provided. The RFID system comprises an RFID reader (101) communicating with an RFID tag (102). The RFID reader (101) sends (116) to the RFID tag (102) a request to write. The RFID tag (102) generates random data (P), and sends (122) the random data (P) to the RFID reader (101). The RFID system encrypts information (M2) by using the random data (P), and the RFID reader (101) sends (124) the encrypted information (E) to the RFID tag (102) which decrypts the information (E) by using the random data (P). Finally the RFID tag (102) stores (126) the decrypted information (M2) on a memory (103) of the RFID tag (102).
22 Citations
19 Claims
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1. A method of controlling storage in an RFID tag communicating with an RFID reader, said method performed in the RFID tag and comprising the steps of:
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receiving a request to write, generating random data, sending the random data, receiving encrypted information, decrypting the received information by using the random data, and storing the decrypted information. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An RFID tag for storing information and communicating with an RFID reader, said RFID tag comprising:
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means for receiving a request to write, means for generating random data, means for sending the random data, means for receiving encrypted information, means for decrypting the received information by using the random data, and means for storing the decrypted information.
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8. A method of controlling writing of information by an RFID reader communicating with an RFID tag, said method performed in the RFID reader and comprising the steps of:
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sending a request to write, receiving random data, and sending information encrypted by the random data. - View Dependent Claims (9, 10, 11)
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12. An RFID reader for controlling writing of information on an RFID tag, said RFID reader comprising:
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means for sending a request to write, means for receiving random data, and means for sending information encrypted by the random data. - View Dependent Claims (19)
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13. A method of communication for an RFID system comprising an RFID reader communicating with an RFID tag, said method comprising the steps of:
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sending, from the RFID reader to the RFID tag, a request to write, generating, by the RFID tag, random data, sending, from the RFID tag to the RFID reader, the random data, encrypting information by using the random data, sending, from the RFID reader to the RFID tag, the encrypted information, decrypting, by the RFID tag, the encrypted information by using the random data, and storing, by the RFID tag on a memory of the RFID tag, the decrypted information. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification