Electronics and Telecommunications Research Institute

Dong-Il Seo

Dae-Hee Seo

Ki-Young Kim

Gae-Il An

Hyeok-Chan Kwon

Sungwon Yi

Yong-Hyuk Moon

Jong-Hyun Kim

Seung-Min Lee

Taek-Yong Nam

Jae-Hoon Nah

Sun-Hee Lim

The present invention relates to an agent apparatus and method for sharing anonymous identifier-based security information among security management domains. A plurality of security information sharing agent apparatuses respectively located in a plurality of security management domains and configured to collect security information and transmit collected security information to outside of the security management domains. Each security information sharing agent apparatus includes an identifier conversion unit for converting real name identifier-based security information into anonymous identifier-based security information by converting a real name identifier included in the security information into an anonymous identifier, and a security information communication unit for transmitting the anonymous identifier-based security information obtained by the identifier conversion unit to outside of a corresponding security management domain so that security information is shared among the plurality of security management domains.

Agent apparatus and method for sharing anonymous identifier-based security information among security management domains

An authentication apparatus for a non-real-time IPTV system decrypts a first encrypted value included in a contents request message received from a device using a preset session key, and then verifies the validity of the contents request message. If the verification results of the contents request message are valid, the authentication apparatus encrypts a variation between timestamps of the authentication apparatus and the device using the session key, and then generates a second encrypted value. After verification information by which the device is capable of verifying the authentication apparatus has been generated using the second encrypted value, the authentication apparatus sends verification information, together with contents corresponding to the contents request message, to the device.

Authentication apparatus and method for non-real-time IPTV system

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Daejeon, South Korea

Dong-Il Seo