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One-way communication apparatus with dynamic key generation

  • US 20080238709A1
  • Filed: 03/25/2008
  • Published: 10/02/2008
  • Est. Priority Date: 03/28/2007
  • Status: Abandoned Application
First Claim
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1. A one-way communication apparatus for communicating with a slave computing device for invoking services provided by said slave computing device, said one-way communication apparatus comprising:

  • a shared secret data retention device to retain a shared identifying cipher associated uniquely with said one-way communication apparatus and retained within said slave computing device and known only to said one-way communication apparatus and said slave computing device;

    a dynamic key generation device for generating a dynamic non-reusable key;

    a user authentication device connected to receive a current user identification data for generating a user verification code that said user is authorized to communicate with said slave computing device;

    an encryption device connected to receive a command instruction code, said command instruction code indicating a service to be invoked on said slave computing system, and connected to said shared secret retention device to extract said shared identifying cipher, said dynamic key generation device to receive said dynamic non-reusable key, and said user authentication device to receive said user verification code and if said user verification code indicates that said user is a known user of said one-way communication apparatus, encrypting said command instruction code, said shared identifying cipher, and said dynamic non-reusable key together to form a authenticated command message that is transmitted to said slave computing device to invoke said services provided by said slave computing device.

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