Abstract:
본발명의실시예들에따른데이터보호시스템은컴퓨팅노드, 중간노드및 원격노드를포함할수 있다. 컴퓨팅노드는암호화키를복원하기위한제1 및제2 비밀값들중 제1 비밀값과대칭키를각각저장하고, 암호화키로암호화된데이터에접근할때에암호화키복원요청을생성할수 있다. 중간노드는제1 비대칭키를저장하며, 암호화키복원요청에기초하여비밀값요청을생성할수 있다. 원격노드는제2 비밀값, 대칭키및 제1 비대칭키에대응하는제2 비대칭키를각각저장하고, 비밀값요청에따라, 제2 비밀값을대칭키로암호화하여제1 암호화메시지를생성하고, 제1 암호화메시지를제2 비대칭키로비대칭암호화하여생성한제2 암호화메시지를중간노드로전송할수 있다. 중간노드는제2 암호화메시지를제1 비대칭키로복호화하여추출한제1 암호화메시지를컴퓨팅노드에전송할수 있다. 컴퓨팅노드는제1 암호화메시지를대칭키로복호화하여제2 비밀값을추출하고, 제1 비밀값과제2 비밀값을이용하여암호화키를복원할수 있다.
Abstract:
An intimacy management terminal and a method thereof are provided to extract inclination data based on acquaintance information, calculate intimacy degree through the acquaintance information and an acquaintance schedule and confirm the intimacy degree at any time. The acquaintance information of user is stored in a memory unit. Inclination data about acquaintance is calculated based on the acquaintance information of the acquaintance stored in the memory unit. The personal schedule with acquaintance is inputted to the terminal. The closeness with acquaintance is calculated based on inclination data and the inputted personal information in the memory unit. The calculated closeness is outputted through the output unit. In case the reduced closeness is below the standards closeness and the calculated closeness is gradually reduced as time passes, a warning message is outputted.
Abstract:
PURPOSE: A meeting service method by using a blue-tooth function of a portable terminal is provided to easily and reliably arrange a meeting to an affordable price through a blue-tooth of around users. CONSTITUTION: A terminal one(100) refers to one or more coverage terminal by using the blue-tooth communication(S1). A user of the terminal one requests dialogue in one or more coverage terminal two(200) through the blue-tooth(S2). A communication is established between the terminal one and one or more dialogue available terminal two by the blue-tooth according to a user permission of one or more dialogue available terminal two(S3,S4). The terminal one visits a predetermined meeting zone that is provided by a mobile communication service supplier(S5). The mobile communications service supplier registers a meeting zone visiting(S6,S7).