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公开(公告)号：KR101098826B1
公开(公告)日：2011-12-26
申请号：KR1020090024053
申请日：2009-03-20
Applicant: 한국전자통신연구원
IPC: H04N21/2387 , H04N21/262
Abstract: 본발명은네트워크미디어인지형(network media-aware) 비디오스트리밍스케줄링(video streaming scheduling)을위한장치및 그방법에관한것으로, 비디오영상의높은전달품질을보장하기위해가용대역폭측정을통한패킷손실을예측하고이를비디오전송률에적용하여가변적네트워크성능을반영함으로써패킷전송데드라인을최소화하는적응적스케줄링기법을제공한다. 또한본 발명은, 스트리밍클라이언트를통해패킷의손실, 훼손, 지연등을감지하여패킷에포함된데이터의미디어특성검사를실시하고, 재전송중요도를반영한피드백메시지를구성하여스트리밍서버에제공하며, 스트리밍서버측에서네트워크성능및 미디어특성을동시에고려한최적화된서브스케줄링윈도우(sub-scheduling window)를생성하여이를기초로패킷을선별적으로선택, 제어, 스케줄링하는것을특징으로한다.
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公开(公告)号：KR101098824B1
公开(公告)日：2011-12-26
申请号：KR1020090024052
申请日：2009-03-20
Applicant: 한국전자통신연구원
IPC: H04N21/266
Abstract: 본발명은멀티미디어콘텐츠서비스에관한것으로, 특히스케일러블미디어콘텐츠(scalable media contents)를전달하는데적합한멀티캐스트트리(multicast tree) 구축방법과이 구조에서콘텐츠접근제어기능을제공하기위한보안구조에관한것이다. 기존의멀티미디어영상의경우하나의멀티캐스트트리만으로콘텐츠를배포하는것이가능하지만, 스케일러블미디어콘텐츠의경우다양한디바이스간에수신해야할 레이어(layer)들이서로상이하기때문에기존의단일멀티캐스트트리구축방식으로는콘텐츠배포가불가능하다는문제가있다. 이에본 발명은, 스케일러블미디어의전송에최적화된멀티캐스트트리의구축방법을제안하고, 구축된멀티캐스트트리를통해전송되는스케일러블미디어에대한접근제어를제공하기위한보안구조를함께제공한다. 이를위해본 발명에서는, 스케일러블미디어콘텐츠의각 레이어별로멀티캐스트트리를구축하여해당레이어에대한미디어스트림을전달하는방식을제안한다. 또한, 스트리밍미디어의접근제어를위해하나의레이어에해당하는스트림에대해서만암호화하여전송하는방식을제안한다.
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公开(公告)号：KR1020100062803A
公开(公告)日：2010-06-10
申请号：KR1020090023607
申请日：2009-03-19
Applicant: 한국전자통신연구원
CPC classification number: G06F17/30073 , G06F21/602 , G06F21/72 , G06F21/78 , G06F2221/2107
Abstract: PURPOSE: A data encryption apparatus and a method thereof, a data decoding apparatus, a data searching method are provided to stably encode and store data by configuring a column of a table inside a database. CONSTITUTION: A conversion unit(120) searches a range interval corresponding to first unit character of input data at a domain interval, and divides the searched range interval through an interval division method. The conversion unit searches a range interval for the final character of input data, and an encryption unit(140) generates an encryption value of the input data by using the searched range interval for the final character. The encryption unit calculates the character length of the input data.
Abstract translation: 目的：提供一种数据加密装置及其方法，数据解码装置，数据搜索方法，通过在数据库中配置表的列来稳定地编码和存储数据。 构成：转换单元（120）以域间隔搜索对应于输入数据的第一单位字符的范围间隔，并且通过间隔分割方法来划分所搜索的范围间隔。 转换单元搜索输入数据的最终字符的范围间隔，并且加密单元（140）通过使用搜索到的最终字符的范围间隔来生成输入数据的加密值。 加密单元计算输入数据的字符长度。
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公开(公告)号：KR1020080052188A
公开(公告)日：2008-06-11
申请号：KR1020070045195
申请日：2007-05-09
Applicant: 한국전자통신연구원
CPC classification number: H04L67/1057 , H04L63/061
Abstract: A method for generating indirect trust binding between peers in a P2P network is provided to enable a source peer to be aware of trust of the destination peer using a trust binding generation result since the indirect trust binding is not broken down by an attacker. A method for generating indirect trust binding between peers comprises the following steps. A source peer P1 generates an initialization request message of a destination peer P2 for receiving a session identifier of the destination peer P2 to transmit the same to the destination peer P2(S1). The destination peer P2 receives and analyzes the initialization request message to generate a response message including a session identifier of itself, and transmits the same to the source peer P1(S2). The source peer P1 selects one of a plurality of peers on the P2P network as a relay peer P3(S3). The source peer P1 generates an indirect trust binding request message encrypted using the session identifier of itself, a session identifier of the destination peer, and a session identifier of a relay peer according to an IBC(Identity Based Cryptography) mechanism to transmit the same to the relay peer P3(S4). The relay peer P3 receives and analyzes the indirect trust binding request message to detect the destination peer P2, and delivers the received indirect trust binding request message to the detected destination peer P2(S5). The destination peer P2 forms indirect trust binding to the source peer P1 in response to the indirect trust binding request message, and generates an indirect trust binding checking message encrypted using the session identifier of itself, and a session identifier of the source peer to transmit the same to the source peer P1(S6). The source peer P1 receives and analyzes the indirect trust binding checking message to check an indirect trust binding generation result, and measures trust of the destination peer P2(S7).
Abstract translation: 提供了一种用于在P2P网络中生成对等体之间的间接信任绑定的方法，以使得源对等体能够使用信任绑定生成结果来感知目的地对等体的信任，因为间接信任绑定不被攻击者分解。 用于在对等体之间生成间接信任绑定的方法包括以下步骤。 源对端P1生成目的地对等体P2的初始化请求消息，用于接收目的地对等体P2的会话标识，以将其发送到目的地对等体P2（S1）。 目的地对等体P2接收并分析初始化请求消息以生成包括其自身的会话标识符的响应消息，并将其发送到源对等体P1（S2）。 源对端P1选择P2P网络上的多个对等体之一作为中继对等体P3（S3）。 源对等体P1根据IBC（身份基础密码学）机制生成使用其本身的会话标识符，目的地对等体的会话标识符和中继对等体的会话标识符加密的间接信任绑定请求消息，以将其发送到 中继对等体P3（S4）。 中继对等体P3接收并分析间接信任绑定请求消息以检测目的端对端P2，并将接收到的间接信任绑定请求消息传递到检测到的目的端点P2（S5）。 目的地对等体P2响应于间接信任绑定请求消息，形成对源对等体P1的间接信任绑定，并且生成使用其自身的会话标识符加密的间接信任绑定检查消息，以及源对等体的会话标识符， 与源对等体P1相同（S6）。 源对等体P1接收并分析间接信任绑定检查消息，以检查间接信任绑定生成结果，并测量目的对等体P2的信任（S7）。
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公开(公告)号：KR1020130079209A
公开(公告)日：2013-07-10
申请号：KR1020120150982
申请日：2012-12-21
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A scanning method in a wireless LAN system and an apparatus thereof are provided to reduce initial link setup time and to reduce flooding of a probe response frame. CONSTITUTION: A station transmits a probe request frame through a channel. The station receives a probe response frame from a response target AP (Access Point). The probe request frame includes at least one of information about response receiving time and preference information about the response target AP. The station includes indication information by including receiving time of the probe response frame in the probe request frame. [Reference numerals] (2610) Processor; (2620) Memory; (2630) Transceiver
Abstract translation: 目的：提供无线LAN系统中的扫描方法及其装置，以减少初始链路建立时间并减少探测响应帧的泛洪。 规定：站点通过通道发送探测请求帧。 该站从响应目标AP（接入点）接收探测响应帧。 探测请求帧包括关于响应接收时间和关于响应目标AP的偏好信息的信息中的至少一个。 通过将探测响应帧的接收时间包括在探测请求帧中，该站包括指示信息。 （附图标记）（2610）处理器; （2620）记忆; （2630）收发器
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Patent Agency Ranking
公开(公告)号：KR1020120071959A
公开(公告)日：2012-07-03
申请号：KR1020100133707
申请日：2010-12-23
Applicant: 한국전자통신연구원
Inventor： 구자범
CPC classification number: G01S11/06 , G01S5/0252 , H04B17/27 , H04W64/006
Abstract: PURPOSE: A movement sensing method and apparatus are provided to accurately sense the movement of an object in real time even if obstacles exist between a sensor and the object. CONSTITUTION: A transceiver(260) receives a signal from an object. A characteristic collecting unit(230) collects information on the wave characteristics of the signal received by the transceiver. A movement detecting unit(240) determines the movement of the object based on the wave characteristic data collected by the characteristic collecting unit. It is determined that the object has moved when a change in the wave characteristic data is equal to or greater than a predetermined reference value.
Abstract translation: 目的：提供一种移动感测方法和装置，即使传感器与物体之间存在障碍物，也能实时准确地感测物体的移动。 构成：收发器（260）从物体接收信号。 特征收集单元（230）收集关于由收发器接收的信号的波特性的信息。 移动检测单元（240）基于由特征收集单元收集的波特性数据来确定对象的移动。 当波特性数据的变化等于或大于预定参考值时，确定对象已经移动。
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公开(公告)号：KR101095862B1
公开(公告)日：2011-12-21
申请号：KR1020090023607
申请日：2009-03-19
Applicant: 한국전자통신연구원
Abstract: 본 발명은 데이터에 이용되는 단위 문자별로 치역 구간을 갖도록 [n, m] 도메인 구간을 구간 분할 방식으로 분할하는 매핑 함수를 이용하여 데이터를 암호화하고 검색 방법으로서, 이를 위하여 입력 데이터에 대한 암호화 값을 도메인 구간 내의 값을 이용하여 생성한 후 생성된 암호화 값과 입력 데이터의 문자 길이를 데이터베이스에 저장하고, 검색어가 입력됨에 따라 도메인 구간에서 검색어의 첫 번째 단위 문자에 대응되는 치역 구간을 검색한후 검색된 치역 구간을 단위 문자별로 구간을 갖도록 구간 분할 방식으로 분할한 후 검색어의 다음 문자에 대한 치역 구간을 검색된 치역 구간에서 검색하는 방식으로 검색어의 최종 문자에 대한 치역 구간을 검색하며, 데이터베이스에 저장된 암호화 값들 중 검색된 검색어의 최종 문자에 대한 치역 구간에 대응되는 값을 검색한다.
이와 같이, 본 발명은 데이터베이스 시스템에 적용되어 고객 정보를 데이터베이스에 저장하고 검색할 때, 저장된 데이터에 대한 안전성은 물론, 데이터 검색 (일치검색, 범위검색, COUNT 등) 시에도 효율적으로 검색결과를 제공할 수 있는 효과가 있다.
암호화, 일치 검색, 버킷, 변환-
公开(公告)号：KR100949808B1
公开(公告)日：2010-03-30
申请号：KR1020070126650
申请日：2007-12-07
Applicant: 한국전자통신연구원
CPC classification number: H04L63/102 , H04L63/0428 , H04L67/104 , H04L67/1076 , H04L67/1085
Abstract: 본 발명은 P2P 트래픽 관리 장치 및 그 방법에 관한 것으로, P2P 플로우 에이전트가 실행 중인 응용 프로그램을 모니터링하며 P2P 응용 프로그램을 추출하고, 설정된 정책에 따라 응용 프로그램에 의해 발생되는 각 패킷에 응용 식별자를 추가하여 전송하면, P2P 보안 게이트웨이가 P2P 플로우 에이전트로부터 유입되는 패킷을 모니터링하여 응용 식별자가 포함된 패킷을 추출하고, 추출된 응용 식별자를 이용해 관련 정책을 조회하여 획득하고, 획득한 정책에 따라 상기 패킷에 대해 제어를 가하는 것을 특징으로 한다.
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公开(公告)号：KR1020090065097A
公开(公告)日：2009-06-22
申请号：KR1020070132540
申请日：2007-12-17
Applicant: 한국전자통신연구원
CPC classification number: H04L63/08 , H04L9/3213 , H04L63/123 , H04L2209/805 , H04W12/06 , H04W12/10 , H04W88/06
Abstract: An authentication gateway apparatus for accessing a ubiquitous service and a method thereof are provided to authenticate an authentication server and an authentication gateway of a service provider by using a first authentication device as an authentication gateway. A first authentication device(100) transmits an authentication data request message to an authentication server(110) of a service provider. The first authentication device stores an authentication token received from the authentication server. The first authentication device performs an authentication gateway role with second authentication devices of a plurality of other service providing devices(120a~120d). The service providing devices are connected to a portable device through a wireless communication method. A plurality of second authentication devices(170a~170d) provides an eigenvalue of the second authentication device to the first authentication devices through the wireless communication method.
Abstract translation: 提供一种用于访问普遍存在的服务的认证网关装置及其方法，用于通过使用第一认证装置作为认证网关来认证服务提供商的认证服务器和认证网关。 第一认证装置（100）向认证服务器（110）发送认证数据请求消息。 第一认证装置存储从认证服务器接收到的认证令牌。 第一认证装置与多个其他服务提供装置（120a〜120d）的第二认证装置执行认证网关角色。 服务提供设备通过无线通信方式连接到便携式设备。 多个第二认证装置（170a〜170d）通过无线通信方法向第一认证装置提供第二认证装置的特征值。
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公开(公告)号：KR1020090059669A
公开(公告)日：2009-06-11
申请号：KR1020070126650
申请日：2007-12-07
Applicant: 한국전자통신연구원
CPC classification number: H04L63/102 , H04L63/0428 , H04L67/104 , H04L67/1076 , H04L67/1085
Abstract: A P2P traffic management apparatus and a method thereof are provided to detect the encrypted traffic of a P2P network application service and control the detected traffic according to a policy, thereby considerably reducing the overhead. A P2P flow agent(400) participates in a real P2P network, and performs a role as a servant using the general P2P application service. A P2P security gateway(200) manages the detection and control of P2P traffic. A live policy update server(100) and a domain manager(300) control the operation of the P2P security gateway according to the change in a network environment and conditions of the P2P application service. The domain manager determines a local network service rule used by one P2P security gateway.
Abstract translation: 提供一种P2P流量管理装置及其方法，用于检测P2P网络应用服务的加密流量，并根据策略控制检测到的流量，从而显着降低开销。 P2P流代理（400）参与真正的P2P网络，并使用一般的P2P应用服务作为仆人的角色。 P2P安全网关（200）管理P2P流量的检测和控制。 实时策略更新服务器（100）和域管理器（300）根据网络环境的变化和P2P应用服务的状况来控制P2P安全网关的操作。 域管理员确定一个P2P安全网关使用的本地网络服务规则。
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