Granted Patent B2

US 9,906,952 · App. 14/670,134 · Granted Feb 27, 2018

Abstract

Claims (51)

1. An automated networked peripheral anti-takeover method for a peripheral device, comprising:

receiving a message;

identifying that the message comprises a transition trigger based at least in part on a timing and a pattern of the received message;

setting a peripheral device mode to decryption key transmission mode based at least in part on the message comprising the transition trigger;

setting a peripheral device unencrypted data transmission period;

monitoring a number of occurrences of peripheral device events, wherein the peripheral device events are based at least in part on a sensor condition detected at the peripheral device;

generating an encryption key comprising a decryption key value and a key serial number associated with the number of occurrences of peripheral device events;

modifying the key serial number based at least in part on a type of peripheral device event and a number of occurrences of the type of peripheral device event detected at the peripheral device during the monitoring;

transmitting, from a peripheral device, one or more unencrypted data packets comprising the encryption key during the peripheral device unencrypted data transmission period;

detecting, at the peripheral device, an expiration of the peripheral device unencrypted data transmission period; and

setting the peripheral device mode to an encrypted mode in response to detecting the termination of the peripheral device unencrypted data transmission period.

2. The method of claim 1 , further comprising:

transmitting one or more encrypted data packets, wherein the one or more encrypted data packets are decryptable using a decryption algorithm comprising a decryption key value variable, wherein the decryption key value variable is set to the decryption key value.

3. The method of claim 1 , wherein the termination of the peripheral device unencrypted data transmission period comprises the expiration of a pre-defined period of time.

4. The method of claim 3 , wherein the pre-defined period of time is defined prior to an installation event.

5. The method of claim 1 , wherein setting of a peripheral device mode to decryption key transmission mode comprises detecting a pre-defined sensor event pattern.

6. The method of claim 1 , wherein setting of a peripheral device mode to decryption key transmission mode comprises connecting a ground pin point and a reset pin point for a pre-defined duration.

7. The method of claim 1 , wherein setting the peripheral device mode to encrypted mode comprises a permanent setting.

8. The method of claim 1 , wherein setting the peripheral device mode to decryption key transmission mode occurs prior to deployment of the peripheral device.

9. A networked peripheral anti-takeover system for a peripheral device, the system comprising:

a processor;

a memory; and

instructions stored in the memory, the instructions being executable by the processor to:

receive a message;

identify that the message comprises a transition trigger based at least in part on a timing and a pattern of the received message;

set a peripheral device mode to decryption key transmission mode based at least in part on the message comprising the transition trigger;

set a peripheral device unencrypted data transmission period;

monitor a number of occurrences of peripheral device events, wherein the peripheral device events are based at least in part on a sensor condition detected at the peripheral device;

generate an encryption key comprising a decryption key value and a key serial number associated with the number of occurrences of peripheral device events;

modify the key serial number based at least in part on a type of peripheral device event and a number of occurrences of the type of peripheral device event detected at the peripheral device during the monitoring;

transmit one or more unencrypted data packets comprising the encryption key during the peripheral device unencrypted data transmission period;

detect termination of the peripheral device unencrypted data transmission period; and

set the peripheral device mode to encrypted mode in response to termination of the peripheral device unencrypted data transmission period.

10. The device of claim 9 , wherein the instructions are further executable by the processor to:

transmit one or more encrypted data packets, wherein the one or more encrypted data packets are decryptable by a decryption algorithm comprising a decryption key value variable, wherein the decryption key value variable is set to the decryption key value.

11. The device of claim 9 , wherein the termination of the peripheral device unencrypted data transmission period comprises the expiration of a pre-defined period of time.

12. The device of claim 11 , wherein the pre-defined period of time is defined prior to an installation event.

13. The device of claim 9 , wherein for setting a peripheral device mode to key transmission mode, the processor is further configured to detect a pre-defined sensor event pattern.

14. The device of claim 9 , wherein setting of a peripheral device mode to key transmission mode comprises connecting a ground pin point and a reset pin point for a pre-defined duration.

15. A controller anti-takeover computer program product, comprising:

a non-transitory computer-readable medium comprising:

code for receiving a message;

code for identifying that the message comprises a transition trigger based at least in part on a timing and a pattern of the received message;

code for setting a peripheral device mode for a peripheral device to decryption key transmission mode based at least in part on the message comprising the transition trigger;

code for setting a peripheral device unencrypted data transmission period;

code for monitoring a number of occurrences of peripheral device events, wherein the peripheral device events are based at least in part on a sensor condition detected at the peripheral device;

code for generating an encryption key comprising a decryption key value and a key serial number associated with the number of occurrences of peripheral device events;

code for modifying the key serial number based at least in part on a type of peripheral device event and a number of occurrences of the type of peripheral device event detected at the peripheral device during the monitoring;

code for transmitting at a peripheral device one or more unencrypted data packets comprising the encryption key during the peripheral device unencrypted data transmission period;

code for detecting termination of the peripheral device unencrypted data transmission period; and

code for setting the peripheral device mode to encrypted mode in response to detecting a termination of the peripheral device unencrypted data transmission period.

Assignments (10)