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    • 64. 发明公开
    • 분산 서비스 거부 공격 생성 방지 장치
    • 防止分布式服务攻击创伤的装置
    • KR1020110074028A
    • 2011-06-30
    • KR1020090130867
    • 2009-12-24
    • (주)디넷
    • 이종택
    • H04L12/22G06F21/55
    • H04L63/1458H04L63/1416H04L63/16
    • PURPOSE: A device for preventing occurrence of denial attack of a distributed service is provided to correspond to various type of attache by blocking a service attack by recognizing the attach by types. CONSTITUTION: An attack prevention device(100) is connected to a terminal which can be communicated by the internet. The attach prevention device monitors whether an attack for denying a distribution service of the terminal communication data exists or not according to the preset reference. A monitoring center server manages a plurality of attack devices. By storing a DNS(Domain Name System) list inside the attack prevention device, a terminal which is not infected transmits their IP and a port number when requesting a connection to the attack target site.
    • 目的:提供一种用于防止发生分布式业务拒绝攻击的设备,以通过按类型识别附件来阻止服务攻击来对应于各种类型的Attache。 构成:攻击防止装置(100)连接到能够通过因特网通信的终端。 附着防止装置根据预先设定的基准来监视是否存在拒绝终端通信数据的分发服务的攻击。 监控中心服务器管理多个攻击设备。 通过在攻击防范装置内存储DNS(域名系统)列表,当请求与攻击目标站点的连接时,未被感染的终端发送其IP和端口号。
    • 65. 发明公开
    • 다자간 양자 통신에서의 사용자 인증 방법 및 장치
    • 多用途通信认证用户的方法和设备
    • KR1020110070694A
    • 2011-06-24
    • KR1020100033400
    • 2010-04-12
    • 한국전자통신연구원
    • 최정운장구영노태곤지동표이수준
    • H04L9/08H04L9/32
    • H04L63/1416H04L9/0852
    • PURPOSE: A user authentication method at multilateral both sides communication and an apparatus thereof are provided to guarantee unconditional security for the attack of a disguised attack person, by generating a new secret key. CONSTITUTION: One user among N users transmits N particles corresponding to N-Partite GHZ state to the users(S100). A both sides communication server judges a disguised attack person among N users, based on a second number of particles and a first error rate(S120). The both sides communication server generates a new secret key using a third number of particles. The both sides communication server controls the replacement of the stored secret key with the new secret key(S130). The both sides communication server computes a second error rate(S110). The both sides communication server refines the error generated during transmission(S140).
    • 目的:提供双边通信及其设备的用户认证方法,以保证伪装攻击者的攻击无条件的安全性,方法是生成新的密钥。 构成:N个用户中的一个用户向用户发送对应于N-Partite GHZ状态的N个粒子(S100)。 双方通信服务器根据第二数量的粒子和第一错误率来判断N个用户中的伪装攻击者(S120)。 双方通信服务器使用第三数量的粒子生成新的密钥。 双方通信服务器用新的秘密密钥控制存储的秘密密钥的替换(S130)。 双方通信服务器计算第二个错误率(S110)。 双方通信服务器精简传输过程中产生的错误(S140)。
    • 70. 发明公开
    • 네트워크 상의 응용 계층 보호 방법 및 장치
    • 网络中保护应用层的方法与装置
    • KR1020110006566A
    • 2011-01-20
    • KR1020090086063
    • 2009-09-11
    • 한국전자통신연구원
    • 오진태이유리최양서장종수
    • H04L12/22
    • H04L63/1441H04L63/1416H04L63/168
    • PURPOSE: A method and an apparatus for protecting an application layer in a network are provided to detect a DDoS(Distributed Denial of Service) attacker without a false alarm by detecting and taking a measure for an IP or packet which generates a FIN packet just after the occurrence of a GET packet. CONSTITUTION: If a data providing server transfers a SYN+ACK packet, an application layer protection server changes a first state(S1) into a second state(S2). If a client generates a GET packet, the server changes a third state(S3) into an attack detection state(S4). If the response of the data providing server is monitored in priority, the server changes a fourth state(S4) into a sixth state(S6). When the client generates a RESET packet or FIN packet, the server judges the current client as an application layer attack client.
    • 目的:提供一种用于保护网络中的应用层的方法和装置,通过检测并采取紧随其后生成FIN数据包的IP或数据包来检测DDoS(分布式拒绝服务)攻击者,而不会发生虚假警报 发生一个GET数据包。 规定:如果数据提供服务器传送SYN + ACK数据包,则应用层保护服务器将第一状态(S1)改变为第二状态(S2)。 如果客户端生成GET数据包,则服务器将第三状态(S3)改变为攻击检测状态(S4)。 如果优先监视数据提供服务器的响应,则服务器将第四状态(S4)改变为第六状态(S6)。 当客户端生成RESET数据包或FIN数据包时,服务器将当前客户端判断为应用层攻击客户端。