Enhanced physical layer security

1. A device, the device comprising memory and processing circuitry configured to:

determine a physical layer (PHY) frame to be sent to a station device;

identify an encryption seed sequence to be used for encrypting a first portion of the PHY frame;

include an indication of the encryption seed sequence in a first field of the PHY frame;

encode the first portion of the PHY frame using the encryption seed sequence;

cause to set a bit in a second field associated with the first field, wherein the bit indicates that pilot tone index locations of the first portion of the PHY frame are encrypted;

cause to send a shared key information associated with encrypting the pilot tone index locations; and

cause to send the PHY frame to the station device.

2. The device of claim 1 , wherein the first portion is a signaling field of the PHY frame.

3. The device of claim 2 , wherein the signaling field of the PHY frame includes at least a high-efficiency signal A (HE-SIG-A) field or a next-generation Wi-Fi signal field (NG-SIG).

4. The device of claim 1 , wherein the memory and the processing circuitry are further configured to determine a pilot index associated with a lookup table for the pilot tone index locations.

5. The device of claim 1 , wherein the memory and the processing circuitry are further configured to determine the pilot tone index locations based on performing a bitwise exclusive OR operation.

6. The device of claim 5 , wherein the memory and the processing circuitry are further configured to determine the pilot tone index locations are encrypted using a keyed-hash message authentication code.

7. The device of claim 1 , wherein the first field is a basic service set (BSS) color field of the PHY frame.

8. The device of claim 1 , wherein the memory and the processing circuitry are further configured to include the encryption seed sequence in the first field of the PHY frame.

9. The device of claim 1 , further comprising a transceiver configured to transmit and receive wireless signals.

10. The device of claim 9 , further comprising one or more antennas coupled to the transceiver.

11. A non-transitory computer-readable medium storing computer-executable instructions which when executed by one or more processors result in performing operations comprising:

identifying a physical layer (PHY) frame received from a device;

determining a first bit in a first field of the PHY frame to indicate an encryption seed sequence included in a second field the PHY frame, wherein determining the first bit further indicates that pilot tone index locations of a first portion of the PHY frame are encrypted, an wherein a shared key associated with encrypting the pilot tone index locations is shared during association with the device;

identifying the encryption seed sequence from the second field;

determining pilot tone index locations associated with a third field of the PHY frame based on the encryption seed sequence; and

decoding the third field based on the pilot tone index locations.

12. The non-transitory computer-readable medium of claim 11 , wherein the first field is a signaling field included in the PHY frame.

13. The non-transitory computer-readable medium of claim 12 , wherein the signaling field is a high-efficiency signal A (HE-SIG-A) field or a next-generation Wi-Fi signal field (NG-SIG).

14. The non-transitory computer-readable medium of claim 11 , wherein the operations further comprise computing the pilot tone index locations using a keyed-hash message authentication code (HMAC), wherein an input to the HMAC includes at least one of the shared key and the encrypting seed sequence.

15. The non-transitory computer-readable medium of claim 11 , wherein the operations further comprise determining the pilot tone index locations using a lookup table using a pilot tone index included in the PHY frame.

16. The non-transitory computer-readable medium of claim 11 , wherein the operations further comprise performing a cyclic redundancy code (CRC) check after decoding the third field of the PHY frame.