RFID TAG USING ENCRYPTED VALUE
First Claim
Patent Images
1. A method comprising:
- reading a permanent ID off of an RFID chip of an RFID tag;
combining the permanent ID with a seed value to form a combined value;
encrypting the combined value to form an encrypted value;
storing the encrypted value on the RFID chip,wherein the RFID tag can be validated using the encryption value.
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Abstract
A permanent ID can be read off of an RFID chip of an RFID tag. The permanent ID can be combined with a seed value to form a combined value. The combined value can be encrypted to form an encrypted value. This encrypted value can be stored on the RFID chip. Later, the RFID tag can be validated using the encryption value.
24 Citations
25 Claims
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1. A method comprising:
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reading a permanent ID off of an RFID chip of an RFID tag; combining the permanent ID with a seed value to form a combined value; encrypting the combined value to form an encrypted value; storing the encrypted value on the RFID chip, wherein the RFID tag can be validated using the encryption value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An RFID tag comprising:
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an RFID antenna; and an RFID chip, the RFID chip including a permanent ID put on the RFID chip by the RFID chip manufacturer and an encrypted value, the encrypted value being created by encrypting a combined value, the combined value combining the permanent ID and a seed value. - View Dependent Claims (10, 11, 12)
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13. A method comprising:
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reading data off of a RFID chip of an RFID tag, the data including a permanent ID put on the RFID chip by the RFID chip manufacturer, and an encrypted value; decrypting the encrypted value to get a combined value; analyzing the combined value to get a derived permanent ID and a derived seed value; and using at least one of the derived permanent ID and the derived seed value to validate the RFID tag. - View Dependent Claims (14, 15, 16, 17, 18)
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- 19. An RFID reader configured through software to authenticate an RFID tag through the use of a public/private key encryption method
Specification