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    • 1. 发明申请
    • Apparatus and method for providing real-time traceback connection using connection redirection technique
    • 使用连接重定向技术提供实时追溯连接的装置和方法
    • US20050060582A1
    • 2005-03-17
    • US10749744
    • 2003-12-30
    • Yang ChoiHwan KimDong SeoSangho Lee
    • Yang ChoiHwan KimDong SeoSangho Lee
    • H04L12/28G06F11/30H04L29/06
    • H04L63/1441H04L2463/146
    • An apparatus and method for providing traceback connection using a connection redirection technique are provided. A packet blocking unit blocks an attack packet transmitted to the system and a first response packet output from the system in response to the attack packet, if a system attack sensing signal is received. A response packet generation unit generates a second response packet into which a watermark is inserted, in response to the attack packet, and transmits the second response packet to a system corresponding to the source address of the attack packet. A path traceback unit receives a detection packet containing transmission path information of the second response packet from a system existing on a transmission path of the second response packet, and based on the received detection packet, traces back the transmission path of the second response packet and identifies the location of the attacker system. According to the apparatus and method, even when an attacker attacks a predetermined system via a plurality of systems, the actual location of the attacker system can be traced back fast and accurately and damage of the victim system can be minimized.
    • 提供了一种使用连接重定向技术提供回溯连接的装置和方法。 如果接收到系统攻击感知信号,则分组阻塞单元阻止发送到系统的攻击分组和响应于攻击分组从系统输出的第一响应分组。 响应分组生成单元响应于攻击分组生成插入了水印的第二响应分组,并将第二响应分组发送到与攻击分组的源地址对应的系统。 路径追溯单元从存在于第二响应分组的传输路径上的系统接收包含第二响应分组的传输路径信息的检测分组,并且基于接收到的检测分组,追踪第二响应分组的传输路径, 识别攻击者系统的位置。 根据该装置和方法,即使攻击者通过多个系统攻击预定的系统,也可以快速,准确地跟踪攻击者系统的实际位置,并且可以使受害者系统的损坏最小化。
    • 4. 发明申请
    • METHODS AND APPARATUSES FOR PROVIDING DRM INTEROPERABILITY
    • 提供DRM互操作性的方法和设备
    • US20100138671A1
    • 2010-06-03
    • US12630646
    • 2009-12-03
    • Jong KimSangho LeeHeejin Park
    • Jong KimSangho LeeHeejin Park
    • G06F21/24
    • G06F21/10G06F2221/0728
    • Methods and apparatuses for providing DRM interoperability are provided. Proxy re-encryption technique using bilinear map is used, and the same content can be used in different devices. According to the method of providing DRM interoperability includes in proxy agent with respect to digital rights management (DRM) service providers and device which supports predetermined DRM, first DRM service provider, second DRM service provider, the proxy agent, and the device identify each other, and proxy re-encrypt an interoperable content (IC) and provide the IC to the device. The IC is second-level encrypted by using a key of the first DRM service provider, and the proxy re-encryption is performed by using a proxy key generated from proxy key information provided from the first DRM service provider and the second DRM service provider. Therefore, a problem in which interoperability cannot be guaranteed since a DRM technique depends on a service provider is resolved.
    • 提供了提供DRM互操作性的方法和设备。 使用双线性映射的代理重新加密技术,相同的内容可以在不同的设备中使用。 根据提供DRM互操作性的方法,其包括关于数字权限管理(DRM)服务提供商的代理代理和支持预定DRM的设备,第一DRM服务提供商,第二DRM服务提供商,代理代理和设备彼此识别 ,并且代理重新加密可互操作的内容(IC)并将IC提供给设备。 IC通过使用第一DRM服务提供商的密钥进行二级加密,并且通过使用从第一DRM服务提供商和第二DRM服务提供商提供的代理密钥信息生成的代理密钥来执行代理重新加密。 因此,解决了DRM技术取决于服务提供商的互操作性不能保证的问题。