Electronics and Telecommunications Research Institute

Seungmin Lee

Taek Yong Nam

Dong Il Seo

Yong Hyuk Moon

Jae Hoon Nah

Hyeok Chan Kwon

Jong Soo Jang

Sang-Woo Lee

Yong-Sung Jeon

Yong-Hyuk Moon

Sokjoon Lee

Dae-Hee Seo

Hyeokchan Kwon

Dong Ho Seo

Donghyuk Lee

A method for generating smart contents includes contents protected by a digital right management (DRM) technology; and metadata including information necessary to use the contents. Further, the method includes a smart code for protecting copyright of the contents and position information which the smart code is downloaded.

Method for generating smart contents, method for executing smart contents and method for providing N-screen service of smart contents

A security label generation apparatus for scalable content distribution, includes a scalable content transmitter for receiving service level requirements of a user and network bandwidth information over a network and generating security labels and encrypted scalable units. Further, the security label generation apparatus includes a scalable content receiver for receiving the encrypted scalable units and the security labels from the scalable content transmitter and for decrypting, decoding, playing, modifying, storing or redistributing the encrypted scalable units based on the security labels. Furthermore, the security label generation apparatus includes scalable content storage for searching for scalable content and metadata corresponding to a request of the scalable content transmitter.

Security label generation method and apparatus for scalable content distribution

An adaptive security policy based scalable video service apparatus includes a video streaming server, an adaptive security policy server and a terminal. The video streaming server receives a service demand via a network and generates an encrypted streaming data. The adaptive security policy server analyzes a media structure and the service demand, by using a service profile received from the video streaming server, so as to generate a security policy description. The terminal generates and transmits the service demand to the video streaming server or the adaptive security server, obtains the encrypted streaming data from the video streaming server and decrypts the encrypted streaming data for playback, storing and retransmission.

Adaptive security policy based scalable video service apparatus and method

A block cipher ARIA substitution apparatus, the apparatus includes a first Sbox operation unit for performing operations of a substitution box Sand a substitution box S; a second Sbox operation unit for performing operations of a substitution box Sand a substitution box S; and a control unit for determining modes of the first Sbox operation unit and the second Sbox operation unit. The first Sbox operation unit has a first inverse affine transformation unit for performing an inverse affine operation for obtaining S; a finite field inverse element operation unit for computing an inverse element of GF(2) or a result value of the first inverse affine transformation unit; a first affine transformation unit for performing an affine operation for obtaining S; and a first and a second multiplexer.

Block cipher aria substitution apparatus and method

Growing community of inventors

Daejeon, South Korea

Seungmin Lee