Samsung Electronics Co., Ltd.

Sergei Bezzateev

Alexey Fomin

Eun Ah Kim

Tae-Chul Jung

Mi-suk Huh

Jeong Hyun Yi

Mikhail V Stepanov

Evgeny Linsky

Wong Marcus

Evgny Linsky

Mikhail Stepanov

A method and system for protecting a broadcast frame are provided. A frame broadcasted through a packet switching network is protected and a wireless LAN system is included. A current frame is authenticated based on a TESLA scheme. The authentication of the broadcast frame can be performed without a time difference.

Method for protecting broadcast frame

A method of protecting a broadcast frame, the method comprising broadcasting a beacon and a maintenance beacon frame (MBF) from an access point (AP) to a plurality of terminals during a maintenance beacon waiting period (MBWP); and broadcasting broadcast management frames (BMFs) from the AP to the plurality of terminals during a broadcast management frame waiting period (BMFWP), wherein the MBF comprises a BMFs message integrity code (MIC) field including a BMFs MIC calculated from concatenated BMFs to be sent in a current beacon interval.

Method of protecting broadcast frame, terminal authenticating broadcast frame, and access point broadcasting broadcast frame

Growing community of inventors

St. Petersburg, South Korea

Sergei Bezzateev