Digital signature verification technology for smart credit card and internet applications
First Claim
1. A handshaking method between a computer and a smart digital system, consisting of:
- a test signal, issued by the computer system;
a confirmation signal, issued by the smart digital system;
wherein the confirmation signal comprises a masked form of the test signal, mixed with other irrelevant data, such that the locations of the masked signal within said irrelevant data are known to the computer system.
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Abstract
The presently used Asymmetric Digital Signature verification technologies, such as the system of RSA Data Security Corp., require complex mathematical operations for encryption and decryption. As a result, today'"'"'s smart credit cards have built-in microprocessors, sophisticated arithmetic/logic units, and large amounts of RAM and ROM. For smart card applications, both the cost and the complexity of such systems is prohibitive. The present invention introduces a smart card technology that uses fairly simple logic circuitry, together with a novel handshaking technique, to achieve an outstanding level of security while maintaining simplicity and low cost.
205 Citations
10 Claims
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1. A handshaking method between a computer and a smart digital system, consisting of:
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a test signal, issued by the computer system; a confirmation signal, issued by the smart digital system; wherein the confirmation signal comprises a masked form of the test signal, mixed with other irrelevant data, such that the locations of the masked signal within said irrelevant data are known to the computer system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification