Passing hidden information using attack detectors

Patent metadata

Field	Value
Publication number	US-9411985-B2
Application number	US-201414151389-A
Country	US
Kind code	B2
Filing date	Jan 9, 2014
Priority date	Jan 24, 2013
Publication date	Aug 9, 2016
Grant date	Aug 9, 2016

Abstract

An electronic device ( 22 ) includes a communication interface ( 36 ) and a processor ( 30 ), which is configured to store and process secret information and to communicate with a host device ( 24 ) via the communication interface. An environmental detector ( 38 ) is configured to detect a change, relative to a baseline, in an operating environment of the electronic device, and in response to the detected change, to initiate a secure communication between the processor and the host device when the detected change is in a predefined first range, and to invoke a countermeasure against tampering with the device when the detected change is in a predefined second range, disjoint from the first range.

First claim

The invention claimed is:

1. An electronic device, comprising:
a communication interface;
a processor, which is configured to store and process secret information and to communicate with a host device via the communication interface; and
an environmental detector, which is configured to detect a change, relative to a baseline, in an operating environment of the electronic device, and in response to the detected change, to initiate a secure communication between the processor a…

Assignees

• Cisco Tech Inc

Inventors

• Porat Uri
• Zivi David

Classifications

• G06F21/606 Primary

  Physics · mapped topic

• G06F21/75 Primary

  Physics · mapped topic