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Apparatus and Method for Enhancing Security of Data on a Host Computing Device and a Peripheral Device

  • US 20130031629A1
  • Filed: 08/09/2012
  • Published: 01/31/2013
  • Est. Priority Date: 01/21/2011
  • Status: Active Grant
First Claim
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1. A security device for coupling between a host computing device (“

  • host”

    ) and at least one peripheral device (“

    peripheral”

    ), each peripheral being assigned an address, the security device comprising;

    an upstream interface configured to be coupled via an upstream link to the host and to receive commands and data from the host via the upstream link and to send data to the host via the upstream link, each of at least some of the commands including an address of one of the at least one peripheral;

    at least one downstream interface, each downstream interface configured to be coupled via a respective downstream link to one of the at least one peripheral and to receive data from the one peripheral via the respective downstream link and to send commands and data to the one peripheral via the respective downstream link; and

    a controller coupled to the upstream and downstream interfaces and configured to;

    receive commands and data via the upstream interface;

    select at least one of the at least one downstream interface, based on an address in the received commands and data;

    forward the received commands and data to the selected at least one of the at least one downstream interface.

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