RF TRANSACTION AUTHENTICATION USING A RANDOM NUMBER
Inventors: Fred Bishop, Glendale, AZ (U S); Peter D. Saunders, Salt Lake City, UT (US)
Assignee: Xatra Fund MX, LLC, Wilmington, DE (US)
Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 621 days.
Appl. No.: 12/256,310
Filed: Oct. 22, 2008
Prior Publication Data US 2009/0044012 A1 Feb. 12, 2009
Related U.S. Application Data
Continuation of application No. 11/160,548, filed on Jun. 28, 2005, now Pat. No. 7,735,725, which is a continuation-in-part of application No. 10/711,720, filed on Sep. 30, 2004, now Pat. No. 7,996,324, and a continuation-in-part of application No. 10/708,545, filed on Mar. 10, 2004, now Pat. No. 7,668,750, and a continuation-in-part of application No. 10/340,352, filed on Jan. 10, 2003, now Pat. No. 7,889,052, and a continuation-in-part of application No. 10/192,488, filed on Jul. 9, 2002, now Pat. No. 7,239,226.
Encrypievd ID Transactmnl velld Trerreectien Emted Y
(56) References Cited U.S. PATENT DOCUMENTS 5,068,894 A 11/1991 Hoppe 5,288,978 A 2/1994 Iijima (Continued) FOREIGN PATENT DOCUMENTS JP 03001289 1/1991 (Continued) OTHER PUBLICATIONS
JP; Office Action dated May 19, 2010 in Application No. 2008001633.
Primary Examiner * Daniel Hess (74) Attorney, Agent, or Firm * Snell & Wilmer L.L.P
A system and method for securing Radio Frequency Identification (RFID) transactions is provided. An exemplary method includes using a random number in an authentication tag and authorizing an RF transaction in response to verifying the authentication tag. The method may also involve variously validating an RFID device authentication tag and an RFID reader authentication tag. Additionally, a system and method is disclosed for verifying an RFID transaction device and RFID reader operable with an RF transaction system. The method involves presenting an RFID device to an RFID reader, receiving a random number, creating an RFID transaction device authentication tag using the random number and a counter value, providing the RFID transaction device authentication tag to an RFID reader, creating an RFID reader authentication tag using the counter, random number, and RFID authentication tag, and providing the RFID reader authentication tag and RFID transaction device authentication tag for authentication.
18 Claims, 7 Drawing Sheets
User Provides RD“ N Alternate Method at Cornpletmg
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Number " 206 RFID Device Counter / incremented v RFID Device Provides Encrypted Identifier, //208 END Routing Number and A Counter Value to RFID 220 % Reader User Provides v RFID Alternate Method of Device NO C I tRFID Reader Converts 210 Enc ted ID °mP e _mg the RFID Device Identifier / WP, 7 Transactronl and the RFID Counter VaIId- Transaction Ended Value to POS Format 226
216 u _ _ H POS Sends Transaction / Counter\/a|id'_; Transactlon Invahd Request to Acquirer Message sent I 218 230 228 Acquirer Sends “Transaction Valid" / Transaction Request to Message Sent! Account Issuer Transaction Completed
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