Secure module with microprocessor and co-processor
First Claim
Patent Images
1. A electronic module comprising:
- a one wire interface for bidirectionally interfacing said electronic module to another electronic device via a single wire;
a one wire UART connected to said one-wire interface;
a microprocessor core circuitry connected to said one wire UART; and
a memory circuit connected to said one wire UART and to said microprocessor core circuitry.
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Abstract
An electronic module having at least a microprocessor and co-processor on a single integrated circuit. The electronic module can be contained in a small housing. The electronic module provides secure bidirectional data communication via a data bus. The electronic module may include integrated circuit comprising a microprocessor, and a co-processor adapted to handle 1,024-bit modulo mathematics primarily aimed at RSA calculations. The electronic module is preferably contained in a small token sized metallic container and will preferably communicate via a single wire data bus which uses a one-wire protocol.
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Citations
20 Claims
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1. A electronic module comprising:
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a one wire interface for bidirectionally interfacing said electronic module to another electronic device via a single wire; a one wire UART connected to said one-wire interface; a microprocessor core circuitry connected to said one wire UART; and a memory circuit connected to said one wire UART and to said microprocessor core circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An microprocessor based electronic module adapted to communicate with a host circuit, comprising:
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a single wire data and power interface; a one wire UART connected to said single wire data and power interface; a data bus connected to said one wire UART; and a microprocessor connected to said data bus. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A microprocessor based data carrier, comprising:
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means for bidirectionally communicating over a single wire; means for encrypting data communicating over said single wire; and means for parasitically powering said data carrier, said data carrier being approximately the size of or smaller than a stack of 4 dimes.
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Specification