Samsung Electronics Co., Ltd.

Hee-kwan Lee

Mi-suk Huh

Seog-chung Seo

Chan-yul Kim

Kwang-pyo Choi

Eun-ah Kim

Provided is an authentication method including receiving an authentication request; obtaining authentication data for authenticating a user from at least one of a plurality of external devices as when the authentication request is received; obtaining an authentication score based on the obtained authentication data and reliability information assigned to a type of the authentication data in advance; and determining whether additional authentication is necessary based on the obtained authentication score.

User authenticating method and device

The present disclosure relates to technologies for a sensor network, machine-to-machine (M2M) communication, machine type communication (MTC), and an Internet of Things (IoT) network. The present disclosure may be used in intelligence services based on such technologies (smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, and security and safety-related services). Provided is a method of transmitting encrypted data for preventing identification of transmitting and receiving devices, from a first device to a second device, the method including: generating an encryption key for encrypting data; generating key identification information by using the generated encryption key and encrypting the data; and transmitting a data set including the encrypted data and the key identification information to the second device.

Method, apparatus and system for secure data communication

Provided is a method, performed by a first device, of sharing a key, the method including: determining a communication method for exchanging a key between the first device and a second device, based on pre-set channel ranking information; receiving a key of the second device from the second device by using the determined communication method; and authenticating the received key of the second device.

Key sharing method and device

A communication system and method using a Golay sequence, are provided. In the communication method, 2order Reed-Muller coding is performed on data to generate a codeword, and exponential modulation is performed on the codeword to generate a near Golay complementary sequence. Factors for generating the codeword are permutations of a 1order Reed-Muller generator, and cosets and offsets of a 2order Reed-Muller code calculated based on the permutations of the 1order Reed-Muller generator, etc.

Growing community of inventors

Seongnam-si, South Korea

Hee-kwan Lee