Communication apparatus and method for secure low power transmission
AssigneePanasonic Intellectual Property Corporation of America
InventorsROJAN CHITRAKAR, LEI HUANG, YOSHIO URABE
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Abstract
The present disclosure provides a communication apparatus comprising a cryptographic circuitry which, in operation, uses a shared cryptographic secret Key and a cryptographic salt to generate a cryptographically encoded Message Integrity Code (MIC) that is computed over the 0address field of a Wake Up Radio (WUR) frame; and a transmission signal generator which, in operation, generates a secure WUR signal by replacing the address field of the WUR frame with the MIC; and a transmitter which, in operation, transmits the secure WUR signal.
Claims11
A station comprising:
- a receiver which, in operation, receive, from an Access Point (AP), a Wake-Up Radio (WUR) frame containing Message Integrity Code (MIC) that is computed, by the access point, using a temporal key and a part of AP Time Synchronization Function (TSF) timer;
- and
- circuitry which, in operation, computes a local MIC using the temporal key and a station TSF timer, and if the computed local MIC matches the MIC of the WUR frame, the circuitry authenticates the WUR frame that wakes up the station.
A communication method for a station, the method comprising:
- receiving, from an Access Point (AP), a Wake-Up Radio (WUR) frame containing Message Integrity Code (MIC) that is computed, by the access point, using a temporal key and a part of AP Time Synchronization Function (TSF) timer;
- computing a local MIC using the temporal key and a station TSF timer;
- and
- if the computed local MIC matches the MIC of the WUR frame, authenticating the WUR frame that wakes up the station.
An integrated circuit for a station, the integrated circuit comprising,
- an input, which, in operation, input a signal, and
- control circuitry, which is coupled to the at input, and which controls:
- receiving, from an Access Point (AP), a Wake-Up Radio (WUR) frame containing Message Integrity Code (MIC) that is computed, by the access point, using a temporal key and a part of AP Time Synchronization Function (TSF) timer;
- computing a local MIC using the temporal key and a station TSF timer;
- and
- if the computed local MIC matches the MIC of the WUR frame, authenticating the WUR frame that wakes up the station.
Dependencies are inferred from the claim text.