SECURE WIRELESS LOW-POWER WAKE-UP

• US 20170134943A1
• Filed: 11/05/2015
• Published: 05/11/2017
• Est. Priority Date: 11/05/2015
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Min, Alexander W., Park, Minyoung
• Granted Patent: US 9,801,060 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 1/3203 Power management, i.e. event-based initiation of a power-saving mode
• CPC Class Codes: G06F 1/3209 Monitoring remote activity, e.g. over telephone lines or network connections
• CPC Class Codes: G06F 1/3278 Power saving in modem or I/O interface
• CPC Class Codes: H04L 2209/80 Wireless network architectures or network communication protocols for wireless network security H04W12/00
• CPC Class Codes: H04L 63/1441 Countermeasures against malicious traffic countermeasures against attacks on cryptographic mechanisms H04L9/002
• CPC Class Codes: H04L 9/3242 involving keyed hash functions, e.g. message authentication codes [MACs], CBC-MAC or HMAC
• CPC Class Codes: H04W 12/04 Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: H04W 12/06 Authentication
• CPC Class Codes: H04W 12/125 Protection against power exhaustion attacks
• CPC Class Codes: H04W 52/0212 managed by the network, e.g. network or access point is master and terminal is slave
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Systems and techniques for secure wireless low-power wake-up are described herein. A low-power wake-up receiver (LP-WUR) of a wireless device may receive a wake-up signal. The LP-WUR may extract a receiver ID token from the wake-up signal. The LP-WUR may then verify the receiver ID token and enable a main transceiver, different than the LP-WUR, when the verification passes to engage in wireless communications.

Claims

1. At least one non-transitory machine readable medium including instructions that, when executed by a machine, configure the machine to:

generate a receiver identification (ID) token via generation of a new key value and creation of a hash-based message authentication code (HMAC) using the new key and an ID of a transceiver of the machine, the resulting HMAC being the receiver ID token;

transmit the new key value to a remote transceiver;

disable the transceiver following a transmission of the new key value;

receive a wake-up signal at a low-power wake-up receiver (LP-WUR) from the remote transceiver;

extract, by the LP-WUR, the receiver ID token from the wake-up signal;

perform, by the LP-WUR, verification on the receiver ID token; and

enable, by the LP-WUR, the transceiver when the verification passes, the transceiver being a different radio than the LP-WUR.

2. The machine readable medium of claim 1, wherein to perform the verification includes configuring the machine to compare the receiver ID token to a stored receiver ID token.

3. The machine readable medium of claim 2, wherein to compare the receiver ID token with the stored receiver ID token is a bitwise comparison without additional processing, the comparison passing if the bits of the receiver ID token match the bits of the stored receiver ID token.

8. The machine readable medium of claim 1, wherein to generate the receiver ID token by the transceiver includes configuring the machine to:

verify that the new key is different than a previous key last used for the wake-up signal.

9. The machine readable medium of claim 1, wherein the instructions cause the transceiver of the machine to store the receiver ID token to a storage area as the stored receiver ID token.

10. The machine readable medium of claim 1, wherein to enable the transceiver includes configuring the machine to disable the LP-WUR.

11. The machine readable medium of claim 10, wherein the instructions cause a transceiver of the machine to transmit a response frame to an originator of the wake-up signal, the response frame indicating that the transceiver is enabled.

12. The machine readable medium of claim 11, wherein the response frame is a wake-up acknowledgment (ACK) frame.

13. The machine readable medium of claim 11, wherein to disable the LP-WUR is in response to transmitting the response frame.

4-7. -7. (canceled)

14. At least one non-transitory machine readable medium including instructions to perform secure wireless low-power wake-up, the instructions, when executed by a machine, cause the machine to:

receive a new key value and an identification (ID) from a last secure communication with a remote receiver prior to the remote transceiver being disabled;

create a hashed-based message authentication code (HMAC) using the new key and an ID of the remote transceiver, wherein the HMAC is a receiver ID token; and

transmit a wake-up signal to a low-power wake-up receiver (LP-WUR) that corresponds to the remote transceiver, the wake-up signal including the receiver ID token.

16. The machine readable medium of claim 14, wherein the instructions cause the machine to:

verify that the new key from the last secure communication with the remote transceiver is different than a session key of a previous wake-up signal; and

use the new key when it is different than the session key of the previous wake-up signal.

17. The machine readable medium of claim 14, wherein the instructions cause the machine to:

receive a response packet from the remote transceiver indicating that the remote transceiver is awake; and

transmit data to the remote transceiver.

15. (canceled)

18. An apparatus of a wireless communication device, comprising:

a transceiver to;

generate a receiver identification (ID) token via generation of a new key value and creation of a hash-based message authentication code (HMAC) using the new key and an ID of a transceiver of the machine, the resulting HMAC being the receiver ID token;

transmit the new key value to a remote transceiver; and

disable itself following a transmission of the new key value;

a receiver to receive a wake-up signal, the receiver being a low-power wake-up receiver (LP-WUR);

a decoder to extract the receiver ID token from the wake-up signal;

a comparator to perform verification on the receiver ID token; and

a controller to enable the transceiver when the verification passes, the transceiver being a different radio than the LP-WUR.

19. The apparatus of claim 18, wherein to perform the verification includes the comparator to compare the receiver ID token to a stored receiver ID token.

20. The apparatus of claim 19, wherein to compare the receiver ID token with the stored receiver ID token includes the comparator to perform a bitwise comparison without additional processing, the comparison passing if the bits of the receiver ID token match the bits of the stored receiver ID token.

27. The apparatus of claim 18, wherein, to enable the transceiver, the controller is to disable the LP-WUR.

28. The apparatus of claim 27, wherein the transceiver is to transmit a response frame to an originator of the wake-up signal, the response frame indicating that the transceiver is enabled.

30. The apparatus of claim 28, wherein the LP-WUR is disabled in response to transmission of the response frame.

21. (canceled)

22. The apparatus of claim 21, wherein the transceiver is to store the receiver ID token to a storage area as the stored receiver ID token.

23. An apparatus of wireless communication device for secure wireless low-power wake-up, the apparatus comprising:

a receiver to receive a new key value and an identification (ID) from a last secure communication with a remote transceiver prior to the remote receiver being disabled;

a cryptographic component to create a hashed-based message authentication code (HMAC) using the new key and an ID of the remote transceiver, wherein the HMAC is a receiver ID token;

an encoder to encode the receiver ID token in a wake-up signal; and

a transmitter to communicate the wake-up signal to a low-power wake-up receiver (LP-WUR) that corresponds to the remote transceiver.

24. The apparatus of claim 23, wherein the transmitter is to receive the new key from a last secure communication with the remote transceiver.

25. The apparatus of claim 23, wherein the cryptographic component is to:

verify that the new key from the last secure communication with the remote transceiver is different than a session key of a previous wake-up signal; and

use the new key when it is different than the session key of the previous wake-up signal.

26. The apparatus of claim 23, wherein the transmitter is:

receive a response packet from the remote transceiver indicating that the remote transceiver is awake; and

transmit data to the remote transceiver.