Method and device for providing a security breach indicative audio alert

• US 9,781,138 B2
• Filed: 07/20/2015
• Issued: 10/03/2017
• Est. Priority Date: 06/13/2006
• Status: Active Grant

• Current Assignee: NXP USA, Inc. (NXP Semiconductors NV)
• Original Assignee: NXP USA, Inc. (NXP Semiconductors NV)
• Inventors: Mostinski, Roman, Ashkenazi, Asaf
• Primary Examiner(s): Pope, Daryl
• Application Number:
  US14/803,465
• Publication Number:
  US 20150324584A1
• Time in Patent Office: 806 Days
• Field of Search: 3403841, 381 56, 381119, 381 82, 381 98
• CPC Class Codes: G06F 21/554 involving event detection and direct action
• CPC Class Codes: G06F 21/566 Dynamic detection, i.e. detection performed at run-time, e.g. emulation, suspicious activities
• CPC Class Codes: G06F 2221/033 Test or assess software
• CPC Class Codes: G08B 21/18 Status alarms G08B21/02 takes precedence
• CPC Class Codes: H04L 63/1416 Event detection, e.g. attack signature detection

Abstract

A device for providing a security breach indicative audio alert. The device includes: a security monitor adapted to detect a security breach in device and a loudspeaker, the device wherein including a secure audio alert generating hardware, adapted to participate, in response to the detection of the security breach, in a generation of a security breach indicative audio alert. The secure audio alert generating hardware is connected to an audio mixer that is adapted to mix the security breach indicative audio alert signal with audio signals generated by a software controlled audio source to provide a mixed signal. The audio mixer is further adapted to provide the mixed signal to the loudspeaker that reproduces the mixed signal as sound.

Claims

1. A method for providing a security breach indicative audio alert, the method comprises;

detecting a security breach in a device that comprises a loudspeaker wherein the security breach comprises a software security breach of the device;

generating, by a secure audio alert generating hardware, a security breach indicative audio alert signal;

mixing the security breach indicative audio alert signal with audio signals generated by a software controlled audio source to provide a mixed signal; and

reproducing the mixed signal as sound via the loudspeaker.

2. The method according to claim 1 wherein generating the security breach indicative audio alert signal comprises repetitively generating the security breach indicative audio alert signal, for a predefined alert period.

3. The method according to claim 1 wherein generating the security breach indicative audio alert signal comprises randomly altering at least one characteristic of the security breach indicative audio alert signal.

4. The method according to claim 1 wherein generating the security breach indicative audio alert signal comprises dynamically altering at least one characteristic of the security breach indicative audio alert signal.

5. The method according to claim 1 further comprising:

generating, in response to the detection of the security breach, by at least a secure icon generating hardware, a security breach indicative icon; and

overlaying the security breach indicative icon over a background image.

6. The method according to claim 5 wherein generating the security breach indicative icon comprises replacing a software-generated mouse icon by the security breach indicative icon.

7. The method according to claim 5 wherein generating the security breach indicative icon comprises:

providing location information representative of a location of the security breach indicative icon; and

wherein the overlaying comprises overlaying the security breach indicative icon at the location.

8. The method according to claim 1 wherein the software security breach comprises violation of a security application that sends critical data.

9. The method according to claim 8 wherein the secure audio alert generating hardware is not influenced by software.

10. The method according to claim 1 wherein the device further comprises a processor, and secure audio alert generating hardware is separate from the processor.

11. The method according to claim 1 wherein generating the security breach indicative audio alert signal comprises a statistical characteristic including at least one of an Additive White Gaussian Noise, a painted white noise, and a pre-programmed watermark.

12. A device for providing a security breach indicative audio alert, the device comprises:

a security monitor adapted to detect a security breach in the device, wherein the device comprises a loudspeaker, and wherein the security breach comprises a violation of integrity of a program;

a secure audio alert generating hardware, adapted to generate, in response to the detection of the security breach, a security breach indicative audio alert; and

an audio mixer, coupled to the secure audio alert generating hardware, wherein the audio mixer is adapted to mix the security breach indicative audio alert signal with audio signals generated by a software controlled audio source to provide a mixed signal and to provide the mixed signal to the loudspeaker so that is adapted to reproduce the mixed signal as sound.

13. The device according to claim 12 wherein the secure audio alert generating hardware is adapted to repetitively generate the security breach indicative audio alert signal for a predefined alert period.

14. The device according to claim 12 wherein the secure audio alert generating hardware is adapted to randomly alter at least one characteristic of the security breach indicative audio alert signal.

15. The device according to claim 12 wherein the secure audio alert generating hardware is adapted to repetitively generate a security breach indicative audio alert signal to dynamically alter at least one characteristic of the security breach indicative audio alert signal.

16. The device according to claim 12 wherein the secure audio alert generating hardware is adapted to repetitively generate the security breach indicative audio alert signal.

17. The device according to claim 16 wherein the device is adapted to replace a software-generated mouse icon by the security breach indicative icon.

18. The device according to claim 16 wherein the secure icon generating hardware is adapted to provide location information representative of a location of the security breach indicative icon, and wherein the display image unit is adapted to cause the display to overlay the security breach indicative icon at the location.

19. The device according to claim 12 further comprising:

a display, a secure icon generating hardware, and a display image unit;

wherein the secure icon generating hardware is adapted to generate, in response to the detection of the security breach, a security breach indicative icon;

wherein the secure icon generating hardware is coupled to the display image unit that is adapted to cause the display to display a background image and the security breach indicative icon that is overlaid over the background image.

20. The device according to claim 19 wherein the secure icon generating hardware is adapted to provide predefined location information from one time programmable elements.