Abstract:
PURPOSE: A method of user information protect using an anonymous ID and a web service system having a protecting function are provided to protect the privacy of a user by classifying user information into multi-stages and restricting the range which can be retrieved through a real or anonymous ID. CONSTITUTION: An anonymous ID generator(21) generates an anonymous ID matched a real ID which passes through a real name authentication. A user information database(25) stores the user information and the right information into plural groups classified according to importance. The right information stores not only the retrieval allowance information using the real and anonymous IDs but also retrieval allowance information depending on the level of web service provider. An information management unit(24) controls the retrieval of the user information according to the agreement of the user and the right information.
Abstract:
본 발명은 클러스터 시스템에 관한 것으로, 특히 외부침입으로 변조된 운영체계나 프로그램의 운용을 방지할 수 있도록 한 클러스터 시스템 및 그의 프로그램 관리방법에 관한 것이다. 이를 위하여 본 발명은 유사성을 갖는 하나 이상의 노드의 프로그램을 통합 운영하는 클러스터 시스템에 있어서, 고유 ID를 할당받아 프로그램을 운용하는 하나 이상의 노드와; 상기 고유 ID를 할당하고, 상기 프로그램에 서명을 추가하여 상기 노드로 분배하는 보안관리 서버를 포함하는 클러스터 시스템 및 이를 통해 수행되는 클러스터의 프로그램을 관리하는 방법을 제공한다. 클러스터, OS프로그램, 운용 프로그램, 노드
Abstract:
Provided are a method for automatically generating an address in the IPv6-based Internet when a sender having a pair of a public key and a private key establishes a network connection, and a data format thereof. The method includes generating a CGA address and a CGA option based on the public key and a predetermined parameter, generating a signature option for verifying the CGA option, additionally generating a timestamp option in a case where a unidirectional message is transmitted to the network, and additionally generating a nonce option containing random numbers in a case where a bidirectional message is transmitted to the network, and adding the signature option, the timestamp option and the nonce option to a Neighbor Discovery (ND) option field to form an ND message, and transmitting the ND message to the network. When a host enters the network in a Zero Configuration over the IPv6-based Internet, the host can securely generate its own address without using a manual key. The method can also be applied to general IPv6 packet authentication or position authentication of a mobile node.
Abstract:
패킷 보호 기능을 구비한 차세대 인터넷 시스템 및 패킷 보호 방법이 개시된다. 보안서비스확인부는 보안정책 데이터베이스와 보안연계 데이터베이스를 검색하여 인터넷을 통해 전송할 패킷에 보안서비스가 선택되어 있는지를 검사하고, 보안서비스가 선택된 경우 보안 연계 데이터베이스의 보안서비스의 종류 및 모드를 파악한다. AH서비스부는 패킷 수신지에서 인증 데이터를 계산한 후 원래의 값과 비교할 수 있도록 인증 데이터를 계산하고, 재전송 공격을 방지할 수 있도록 SN 값을 생성하여 AH 내에 삽입한다. ESP서비스부는 패킷에 대한 인캡슐레이션을 수행한 후 데이터의 길이를 블록 암호화 알고리즘에 적용할 수 있도록 패딩하고 패킷 암호화를 수행하며, 패킷 암호화가 완료된 후 패킷 수신지에서 인증 데이터를 계산한 후 원래의 값과 비교할 수 있도록 인증 데이터를 계산하고, 재전송 공격을 방지할 수 있도록 SN 값을 생성하여 ESP 헤더 내에 삽입한다. 본 발명에 따르면, 상위 응용 계층으로부터 발생된 메시지가 차세대 인터넷을 통해 전달될 수 있는 IPv6 패킷의 형태로 변형되는 과정에서 정보보호 서비스를 선택적으로 제공할 수 있다.
Abstract:
PURPOSE: A method for transmitting and receiving an information protection IP(Internet Protocol) packet is provided to generate and transmit a security packet in an IP layer without having an influence on an application layer service program. CONSTITUTION: A transmission host terminal receives a packet from an application layer(601), and generates an information protection packet in which encryption and authentication information is added in the received packet(602). A data link header is added in the generated information protection packet, and the added information protection packet is transmitted to a gateway through the Internet by a frame unit(603). The gateway receives the transmitted information protection packet, removes the data link header from the received information protection packet, and forwards the removed information protection packet(604,605). In case that a security service is selected, the information protection packet is encoded and decoded according to an AH(Authentication Header) protocol header and an ESP(Encapsulating Security Payload) protocol header, and an information protection packet in which a data link header is added again is transmitted to the Internet(606). A reception host terminal receives the information protection packet forwarded from the gateway, and deletes the data link header from the received information protection packet(607). The reception host terminal checks authentication data according to the selection of the security service, and confirms decoding and authentication information according to the AH protocol header and the ESP protocol header(608). The reception host terminal transmits the received data to the upper application layer(609).
Abstract:
PURPOSE: A method of controlling an Internet information protecting system for packet security in an IP layer is provided to supply, control, manage, and evaluate multiple information protecting services according to each packet in the independently operated IP layer, thereby supplying an information protecting function to all Internet services. CONSTITUTION: An IP layer creates IP headers of transmitted packets, and determines whether to select a security service for the packets in reference to a security-based rule DB and a security-related DB. If the security-based rule DB and the security-related DB do not exist, the IP layer negotiates with a security-based rule control server of a receiver, and sets a security-based rule. The IP layer negotiates a security connection with a key switching server of the receiver based on the set security-based rule. The IP layer stores the negotiated security connection in a key management server. The IP layer links the security connection with the related security-based rule. The IP layer transmits the packets by using the linked security-based rule and the security connection and applying an IPsec(IP Security Protocol).