×

Methods and Apparatuses to Secure Data Transmission in RFID Systems Against Eavesdropping

  • US 20090214037A1
  • Filed: 02/26/2008
  • Published: 08/27/2009
  • Est. Priority Date: 02/26/2008
  • Status: Abandoned Application
First Claim
Patent Images

1. A method implemented in a radio frequency identification (RFID) system, the method comprising:

  • communicating random information between an RFID reader and an RFID tag during the RFID reader interrogating the RFID tag;

    generating an encryption key using previously shared information and the random information; and

    communicating a message between the RFID reader and the RFID tag via encryption based on the key during the RFID reader interrogating the RFID tag.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×