Secure epass booklet based on double chip technology
AssigneeInfineon Technologies AG
InventorsJuergen Hoegerl, Frank Pueschner, Peter Stampka, Michael Huber
Life of this patent
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Abstract
A tamper-evident credential has a radio frequency identification (RFID) package with a first antenna and a subordinate antenna, RFID package defining a first part of the credential. The credential also has a subordinate RFID package defining a second part of the credential. The subordinate RFID package selectively coupled to said subordinate antenna so that an interrogation signal applied to said first antenna package is transmitted to the subordinate RFID package across said subordinate antenna.
Claims15
A credential verification system comprising:
- a first radio frequency identification (RFID) package embedded in a first part of said credential, the first RFID package comprising
- a first chip,
- a first RFID-readable data stored on the first chip
- a first antenna responsive to a first interrogation signal, the first antenna operatively connected to said first chip, and
- a subordinate antenna for generating a second interrogation signal, the subordinate antenna operatively connected to said first chip;
- and
- a second RFID package embedded in a second part of said credential variably proximal to the first part of said credential, the second RFID package comprising
- a second chip, and
- a second antenna responsive to said second interrogation signal, the second antenna operatively connected to said second chip and selectively coupled to said subordinate antenna, wherein
- at least a portion of said first RFID-readable data is obscured when the second chip is coupled to the subordinate antenna.
A method for wireless electronic verification of a credential, comprising:
- applying a first interrogation signal to a first radio frequency identification (RFID) package having a subordinate antenna operatively connected to a first chip containing RFID-readable data, the first RFID package embedded in a first part of said credential,
- placing a second RFID package embedded in a second part of said credential proximally to the first RFID package,
- selectively transmitting, responsive to said first interrogation signal, a second interrogation signal using the subordinate antenna,
- analyzing the response to said second interrogation signal,
- generating a first result message indicative of the authenticity of said second RFID package, and
- obscuring at least a portion of said RFID-readable data when said second RFID package is indicated as authentic.
Dependencies are inferred from the claim text.