Secure data tagging systems
First Claim
1. A system for secure communication between an interrogator and an RFID tag, said system comprising:
- means for singulating said tag in a population of RFID tags;
means for extracting from said tag, identity data adapted to uniquely identify said tag;
means for communicating said identity data to a secure database;
means for providing authentication data by said database;
means for communicating said authenticating data to said interrogator;
means for communicating said authentication data from said interrogator to said tag, and means within said tag for authenticating said interrogator; and
means for providing a further communication between said tag and said interrogator after the tag has authenticated said interrogator, wherein at least one stream of data between said tag and said interrogator includes random data generated via a random physical process.
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0 Petitions
Accused Products
Abstract
A system is disclosed for secure communication between an interrogator and an RFID tag. The system includes means for singulating the tag in a population of RFID tags and means for extracting from the tag, identity data adapted to uniquely identify the tag. The system further includes means for securely communicating the identity data to a secure database, means for providing authentication data by the database and means for securely communicating the authenticating data to the interrogator. The system also includes means for providing a further communication between the tag and the interrogator, and wherein at least one stream of data between the tag and the interrogator includes random data generated via a random physical process. The tag and database may each include means for maintaining a count of secure authentications. The count may be separately maintained by the tag and database and may be incremented following each secure authentication. A method for secure communication between an interrogator and an RFID tag is also disclosed.
60 Citations
54 Claims
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1. A system for secure communication between an interrogator and an RFID tag, said system comprising:
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means for singulating said tag in a population of RFID tags; means for extracting from said tag, identity data adapted to uniquely identify said tag; means for communicating said identity data to a secure database; means for providing authentication data by said database; means for communicating said authenticating data to said interrogator; means for communicating said authentication data from said interrogator to said tag, and means within said tag for authenticating said interrogator; and means for providing a further communication between said tag and said interrogator after the tag has authenticated said interrogator, wherein at least one stream of data between said tag and said interrogator includes random data generated via a random physical process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for secure communication between an interrogator and an RFID tag, said method comprising:
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singulating said tag from a population of RFID tags; extracting from said tag, identity data adapted to uniquely identify said tag; communicating said identity data to a secure database; providing authentication data by said database; communicating said authentication data to said interrogator; communicating said authentication data from said interrogator to said tag; authenticating said interrogator with said tag; and providing a further communication between said tag and said interrogator after the tag has authenticated said interrogator, wherein at least one stream of data between said tag and said interrogator includes random data generated via a random physical process. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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37. A system for secure communication between an interrogator and an RFID tag, said system comprising:
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means for extracting from said tag, identity data adapted to uniquely identify said tag; means for establishing secure communications between said interrogator and a secure database; means for storing coinciding random authentication codes in the tag and in the database, the authentication codes in the database being linked to the tag identity; characterized in that said system includes means for selecting on the basis of the number of successful previous authentications corresponding random authentication codes for comparison in both the database and the tag and there is only a single use of each stored code for authenticating said tag. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45)
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46. A method for secure communication between an interrogator and an RFID tag, said method comprising:
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extracting from said tag, identity data adapted to uniquely identify said tag; establishing secure communications between said interrogator and a secure database; storing coinciding random authentication codes in the tag and in the database, the authentication codes in the database being linked to the tag identity; characterized in that said method includes selecting on the basis of the number of successful previous authentications corresponding random authentication codes for comparison in both the database and the tag and there is only a single use of each stored code for authenticating said tag. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53, 54)
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Specification