System and method for authorizing access to an article distribution or service acquisition machine
First Claim
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1. System for authorizing the distribution of articles or services comprising:
- first means for receiving first and second detachable data carriers, each data carrier having processing means, data storage means, decision-making means and interfacing circuits;
second means for processing information from the first and second detachable data carriers;
third means for providing bi-directional communication between the first and second detachable data carriers and said second means, the second detachable data carrier having means necessary for enabling said bi-directional communication between the first detachable data carrier and said second means; and
fourth means responsive to said information processed by the second means for authorizing delivery of the articles or services.
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Abstract
A system and method for distribution of articles or services, especially adapted to be secure against use by unauthorized personel, receives first and second data carriers. Each data carrier includes a processor, data storage, and interfacing circuits. A random number generator feeds a random number to each of the data carriers which use a program to generate a resultant based on the random number, a secret code and an identification number. The secret code and identification number are stored in the data storage of each data carrier. The resultants are compared to determine if they are equal, in which case access is allowed.
167 Citations
19 Claims
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1. System for authorizing the distribution of articles or services comprising:
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first means for receiving first and second detachable data carriers, each data carrier having processing means, data storage means, decision-making means and interfacing circuits; second means for processing information from the first and second detachable data carriers; third means for providing bi-directional communication between the first and second detachable data carriers and said second means, the second detachable data carrier having means necessary for enabling said bi-directional communication between the first detachable data carrier and said second means; and fourth means responsive to said information processed by the second means for authorizing delivery of the articles or services. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A process for authorizing the distribution of articles or services at a data station the steps comprising:
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(a) inserting first and second detachable data carriers into the data station, each data carrier having a processor, a memory, and interfacing circuits; (b) generating a random number E and transferring the random number to each data carrier; (c) producing a resultant R1 =P1 (S,E, In) in the processor of the first detachable data carrier where P1 is a sequence of ordered steps performed on the random number E, a secret code S and an identification code In identifying the detachable data carrier or its holder, where P1, S and In are stored in the first detachable data carrier; (d) producing a resultant R2 =P2 (S, E, In) in the processor of the second detachable data carrier where P2 is a sequence of ordered steps performed on said random number E, said secret code S and said identification code In; (e) testing to see if R1 =R2 ; (f) authorizing access to the data station if R1 =R2 ; and (g) refusing access to the data station if R1 ≠
R2. - View Dependent Claims (17, 18, 19)
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Specification