Methods and Systems for Improving RFID Security
First Claim
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1. An RFID tag capable of storing two identities in its memory, the tag comprising a memory containing a public identity designed to be transmitted to an unauthenticated reader for identifying the tag, and a separate private identity designed to be transmitted only to an authenticated reader.
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Abstract
The present invention provides various techniques to improve the security of data transmissions in RFID systems. Systems and methods for constructing more secure RFID tags, readers, and servers are disclosed enabling individuals to minimize privacy exposure while taking care to avoid needlessly overcomplicating the user'"'"'s RFID transactions.
69 Citations
24 Claims
- 1. An RFID tag capable of storing two identities in its memory, the tag comprising a memory containing a public identity designed to be transmitted to an unauthenticated reader for identifying the tag, and a separate private identity designed to be transmitted only to an authenticated reader.
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8. A method for using a RFID tag, RFID reader, and a server comprising the steps of:
- providing an RFID tag having at least one hashlock in memory and at least two different identities;
using an authenticated reader to query the tag'"'"'s first identity;
receiving the tag'"'"'s first identity with the reader;
sending the first identity of the tag to the server;
looking up at least one hashlock associated with the first identity;
computing the value of the hashlock; and
transmitting the value of the hashlock to the reader. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
- providing an RFID tag having at least one hashlock in memory and at least two different identities;
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24-137. -137. (canceled)
Specification