Electronics and Telecommunications Research Institute

Korea University Research and Business Foundation

University-Industry Cooperation Group of Kyung Hee University

Jong-Hwan Park

Jin-Woo Hong

Dong Hoon Lee

Gwang-Hoon Park

Doug Young Suh

Soon-Choul Kim

Bum-Suk Choi

Young-Ho Jeong

Kyuheon Kim

Jung-Hak Kim

Jeoung-Lak Ha

Min-Woo Jo

Woo-Kwon Koo

An apparatus for providing an augmented broadcasting service and an apparatus for receiving the augmented broadcasting service in a hybrid broadcasting environment. The apparatus for providing the augmented broadcasting service includes: a real-time data provider configured to provide real-time data through a first transmission network; an augmented content provider configured to provide augmented content through a second transmission network, wherein the augmented content is to be synchronized with the real-time data; and a multiplexer configured to multiplex the real-time data, the augmented content metadata and timing information for synchronization between the real-time data and the augmented content metadata, and output resulting data.

Apparatuses for providing and receiving augmented broadcasting service in hybrid broadcasting environment

A public encryption method based on user ID includes: setting, by a key generation server, at least one public parameter and master key used for generating a private key; receiving, by the key generation server, an inherent ID of a user from a receiving terminal, generating a private key based on the public parameter, the master key and the ID, and transmitting the generated private key to the receiving terminal; receiving, by a transmitting terminal, the public parameter and the ID from the key generation server, encrypting a message to generate a ciphertext, and transmitting the generated ciphertext to the receiving terminal; and receiving, by the receiving terminal, the ciphertext and the private key, and decrypting the ciphertext based on the received private key to obtain a message.

Public encryption method based on user ID

Growing community of inventors

Seoul, South Korea

Jong-Hwan Park