Digital signature verification technology for smart credit card and internet applications
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United States of America Patent
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Mar 18, 1997
Grant Date -
N/A
app pub date -
Jan 16, 1996
filing date -
Jan 16, 1996
priority date (Note) -
Expired
status (Latency Note)
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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.
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