Method and apparatus for secure identification and verification
First Claim
1. A personal identification system comprising:
- a unit to be carried by a person to be identified, said unit containing, means for storing a predetermined coded value, means for changing at least a predetermined portion of the coded value at predetermined time intervals in accordance with a predetermined algorithm, the algorithm being such tat the value of said predetermined portion of the stored coded value at any given time is nonpredictable, means for producing a triggering signal, and means responsive to said triggering signal for causing an indication of the current stored coded value to be automatically produced in a predetermined sequence; and
a station having means automatically responsive to the produced coded value sequence for identifying the person who is to be carrying the unit.
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Accused Products
Abstract
A method and apparatus for performing personal identification and/or verification at perdetermined stations or checkpoints is provided. Each person to be identified has a unit such as a card, badge or other token or device which stores a predetermined coded value, at least a predetermined portion of which is changed at selected time intervals in accordance with an algorithm, the algorithm being such that the value of the predetermined portion of the stored coded value at any given time is nonpredictable. The unit has a triggering signal generator, the unit being responsive to the triggering signal to present an indication of the current stored coded value to the station, the station responding to the predetermined coded value for identifying the person. Triggering may be in response to detection of a predetermined beacon from the station, in response to a user keypad input or may be periodically generated. Security may be enhanced by the person inputting a unique PIN at the unit which PIN is utilized in generating the nonpredictable codes. The PIN input may also be used for triggering. Verification may be achieved by including a public code as part of the code which is presented from the unit which public code is not changed.
240 Citations
24 Claims
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1. A personal identification system comprising:
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a unit to be carried by a person to be identified, said unit containing, means for storing a predetermined coded value, means for changing at least a predetermined portion of the coded value at predetermined time intervals in accordance with a predetermined algorithm, the algorithm being such tat the value of said predetermined portion of the stored coded value at any given time is nonpredictable, means for producing a triggering signal, and means responsive to said triggering signal for causing an indication of the current stored coded value to be automatically produced in a predetermined sequence; and a station having means automatically responsive to the produced coded value sequence for identifying the person who is to be carrying the unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for identifying a person comprising the steps of:
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storing a predetermined coded value at a unit carried by the person, changing at least a predetermined portion of the coded value at predetermined time intervals in accordance with a predetermined algorithm, the algorithm being such that the value of said predetermined portion of the stored coded value at any given time is nonpredictable, producing a triggering signal at the unit and causing the indication of the current stored coded value to be automatically produced in response to the triggering signal; and at a station where the person is to be identified, detecting an indication of the produced coded value, and automatically identifying the person who is to be carrying the unit in response to the detected produced coded value. - View Dependent Claims (22, 23, 24)
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Specification