Method and apparatus for secure identification and verification
First Claim
1. A personal identification system comprising:
- means for transmitting a predetermined radiation;
a unit to be carried by a person to be identified, said unit containing means for detecting said predetermined radiation, 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 that the value of said predetermined portion of the stored coded value at any given time is nonpredictable, and means responsive to detection of the predetermined radiation for causing an indication of a current stored coded value, which value is independent of the detected radiation, to be automatically produced in a predetermined sequence; and
means automatically responsive to the produced coded value sequence for identifying the person who is to be carrying the unit.
7 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for performing identification and/or verification at predetermined checkpoints is provided. A selected radiation, such as an RF signal or an ultrasonic signal at a predetermined frequency, is transmitted at the checkpoint. Each identifyee has a unit such as a card, badge or other token or device which detects the predetermined radiation. The unit also 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 that the value of the predetermined portion of the stored coded value at any given time is nonpredictable. In response to the detection of the selected radiation, the unit presents an indication of the current stored coded value to the checkpoint, the checkpoint responding to the predetermined coded value for identifying the identifyee of the unit. Security may be enhanced by the identifyee inputting a unique PIN at the unit which PIN is utilized in generating the nonpredicatble codes. 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.
-
Citations
22 Claims
-
1. A personal identification system comprising:
-
means for transmitting a predetermined radiation; a unit to be carried by a person to be identified, said unit containing means for detecting said predetermined radiation, 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 that the value of said predetermined portion of the stored coded value at any given time is nonpredictable, and means responsive to detection of the predetermined radiation for causing an indication of a current stored coded value, which value is independent of the detected radiation, to be automatically produced in a predetermined sequence; and 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. A method for identifying a person comprising the steps of:
-
transmitting a predetermined radiation; detecting said predetermined radiation at a unit to be carried by the person to be identified, the unit storing a predetermined coded value, 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, and causing an indication of the current stored coded value, which value is independent of the detected radiation, to be automatically produced in a predetermined sequence in response to detection of the predetermined radiation; and automatically identifying the person who is to be carrying the unit in response to the produced coded value sequence. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
-
Specification