Key exchange via a portable remote control device

Details Key exchange via a portable remote control device Key exchange via a portable remote control device

2006-01-31

2006-01-31

Moise, Emmanuel L. (Department: 2137)

Cryptography

Communication system using cryptography

Symmetric key cryptography

C713S171000, C705S066000, C380S283000, C380S285000, C455S410000, C455S352000, C455S088000, C348S014050

Reexamination Certificate

active

06993134

ABSTRACT:
The communications means that are commonly provided for the remote control of electronic components are utilized to effect an exchange of parameters to facilitate a cryptographic key exchange. The bidirectional remote control transceivers, typically infrared transceivers, that are commonly used to communicate commands from the remote control device and to communicate feedback to the remote control device are configured to communicate parameters between a pair of consumer devices that are controllable by the remote control device. In a preferred embodiment of this invention the remote control device contains the control means to effect the transfer of these parameters between the consumer devices.

REFERENCES:
patent: 4905279 (1990-02-01), Nishio
patent: 5028919 (1991-07-01), Hidaka
patent: 5371794 (1994-12-01), Diffie et al.
patent: 5886753 (1999-03-01), Shinyagaito
Bruce Schneier: Applied Cryptography 2ndEdition, Oct. 1995, John Wiley & Sons Pub., pp. 518-520.

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