Samsung Electronics Co., Ltd.

Seoul National University

Youngjip Kim

Dongho Jang

Peng Ning

Siejoon Cho

Sunghyun Choi

Mooyoung Kim

Seungmin Yoo

Taejun Kim

Youngkyoo Kim

Jaehong Yi

Seongwon Kim

Okhwan Lee

Injong Rhee

Youngwook Son

Woonkyun Lee

According to one embodiment of the present disclosure, a communication method of an AP using multiple antennas can be provided, comprising the steps of: setting two or more transmission descriptors including unit transmission information in which antenna combination information and transmission rate information are defined; transmitting a packet using one of the set transmission descriptors; receiving information indicating whether the transmitted packet is a success or not; and collecting the information indicating whether the transmitted packet is a success or not for a predetermined period to reset the transmission descriptors. In addition, an apparatus using the method can be provided.

Technique and apparatus for selecting multiple antennas

A method for supporting change of the authentication means for secure booting with the change of the trust root (root of trust) of the readymade electronic device and the electronic device therefor is provided. The secure boot generation method of an electronic device of the present disclosure includes storing plural initial certificates including a first initial certificate and a second initial certificate, designating the first initial certificate as a root certificate for secure booting of the electronic device, and switching the initial certificate from the first initial certificate to the second initial certificate in response to a request. Various other embodiments are possible.

Method and apparatus for supporting dynamic change of authentication means secure booting

A method and electronic device for executing secure download and security function is provided. The method includes storing a unique identifier (ID) of the electronic device, receiving a binary update request, determining whether the stored unique ID matches a unique ID signed to the binary, and downloading the binary depending on whether the unique IDs match.

Secure download and security function execution method and apparatus

Growing community of inventors

Suwon-si, South Korea

Youngjip Kim