Abstract:
Provided are a transactions certification method and system to protect privacy on details of electronic transactions, the method comprising the operations of: a) receiving and registering client information which is encoded so that a client cannot be identified; b) receiving and storing transactions details of a client including a client transactions identifier encoded by the service provider server; c) after receiving client certification information for client certification, performing client certification by comparing the client information previously registered in the operation a) with the received client certification information; d) receiving a client transactions identifier for searching transactions details of a client when the client certification is performed in the operation c), and determining whether the client transactions identifier and the client transactions identifier previously stored in the operation b) are identical with each other; and c) generating a message corresponding to the transactions details of the client and sending the generated message to the client when it is determined that the client transactions identifiers are identical with each other in the operation d). Accordingly, the transactions details can be managed while protecting privacy on the transactions details of the client.
Abstract:
본 발명은 인증서를 기반으로 하는 정보 보호 분야에 관한 것으로, 특히 공개키 기반구조에서 인증서 검증의 한 과정인 인증경로 생성에 검증서버를 이용함으로써, 클라이언트가 수행해야하는 작업들을 검증서버를 통해 대행하도록 하여 보다 효율적으로 인증경로 생성을 가능하게 하는, 공개키 기반구조에서 검증서버를 이용한 인증경로 생성방법에 관한 것으로, 본 발명에 따른 인증경로 생성방법은, 공개키 기반구조에서 인증 경로를 생성하는 방법에 있어서, 클라이언트(100)에 연결된 검증서버(300)에서 상기 클라이언트의 요청에 상관없이 연동가능한 인증기관의 인증서를 수집하고, 상기 인증기관의 인증서로 이루어질 수 있는 인증경로를 생성하며, 상기 인증기관 인증서 인증경로를 저장하는 제1 단계(311, 312, 313)와, 상기 클라이언트가 상기 검증서버에 검증대상 인증서를 제공하여 상기 검증 대상 인증서의 검증을 요청 시, 상기 검증서버는 기존에 저장된 상기 검증대상 인증서의 인증경로가 존재하는지 확인하는 제2 단계(321, 322)와, 상기 제2 단계에서 확인 결과 상기 검증대상 인증서의 인증경로가 존재하는 경우, 상기 검증서버는 상기 존재하는 인증경로를 사용하여 상기 검증대상 인증서를 검증하고 검증결과를 상기 클라이언트에 전송하는 � ��3 단계(323, 327)와, 상기 제2 단계에서 확인 결과 인증경로가 존재하지 않는 경우, 상기 검증서버는, 상기 제1 단계에서 저장된 인증기관 인증서 인증경로에서 상기 검증대상 인증서의 검증에 합당한 인증기관 인증서 인증경로를 선택하고, 상기 선택된 인증기관 인증서 인증경로와 상기 검증대상 인증서를 결합하여 인증경로의 생성을 시도하는 제4 단계(323, 324) 및 상기 제4 단계에서 인증경로 생성에 성공하는 경우, 상기 검증서버는 상기 성공한 인증경로를 저장하고 상기 생성된 인증경로를 사용하여 상기 검증대상 인증서를 검증하고 검증결과를 상기 클라이언트로 전송하며, 상기 제4 단계에서 인증경로 생성에 실패하는 경우, 상기 검증서버는 실패처리를 수행하고 그 결과에 대한 로그 및 응답을 생성하여 클라이언트로 전송하는 제5 단계(325, 326, 32 7, 328)를 구비함을 요지로 한다.
Abstract:
A method for issuing a certificate using biometric information in a public key infrastructure-based authentication system is provided. In the present invention, an authentication code used to protect a certificate issuance request message is assigned to a user by a certificate authority not at a registration step but at a certificate issuance request step where a user authentication is performed with user's biometric information. Therefore, there is no need for a user to remember and enter the complex authentication code to be issued the certificate, thereby simplifying certificate issuance procedures. Further, in the present invention, the authentication code is assigned to the user at the certificate issuance step only after a real-time authentication using the user's biometric information is performed. For this reason, even though a reference code of the user is revealed to a third party before the certificate issuance step, it can be prevented that the third party tries to be issued the certificate, thereby maintaining higher reliability when the certificate is issued.
Abstract:
PURPOSE: A method for verifying the certificate in a certification verification server by using a public-key infrastructure certificate policy and a certificate policy is provided to concentrically manage the certification policy in the domain by processing the verification of the certificate in the certificate verification server. CONSTITUTION: A method for verifying the certificate in a certification verification server by using a public-key infrastructure certificate policy and a certificate policy includes a first step of: receiving the verification request of the verification target by receiving the certification policy to be applied to the verification target certificate from the clients(100,200), the certificate of authenticate agency and the verification target certificate; a second step of generating the certificate path of the verification target certificate corresponding to the request by the certificate verification server(300); a third step of determining the verification status of the verification target certificate by using the certificate policy table; a fourth step of performing the certificate path verification created by using the certificate policy table in the certificate verification server(300); and a fifth step of transmitting the success message when the result of the certificate path verification is successful and transmitting the failure message when the result of the certificate path verification is fail.
Abstract:
PURPOSE: A system and a method for generating a paper document of an electronic document signed by a public key, and an authenticating electronic signature on the paper document are provided to print an electronic document, signed by a public key, on a paper for a backup, a circulation and a check, and to authenticate the printed paper document. CONSTITUTION: The system comprises a paper document generator(1000), and a paper document authenticator(2000). The paper document generator(1000) includes a paper document generation module(100) and a paper printing module(200). The paper document authenticator(2000) includes a paper document input module(300) and a paper document authentication module(400). The paper document generation module(100) generates an image to be printed on a paper for the electronic document signed by the public key. The paper printing module(200) prints the generated image on the paper. The paper document input module(300) receives the paper document, output via the paper printing module(200), converts the paper document into the digital document, and transfers the digital document to the paper document authentication module(400). The paper document authentication module(400) authenticates the digital document, transferred by the paper document input module(300).