Access Control by SPKI Certificate

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概要

• 論文の詳細を見る

• In this paper, we present a certificate-based access control scheme for privacy-centered services over computer networks. For example, a user wants to be an anonymous customer of some services. One of main authentication and access control schemes is ID certificate (ticket) with service (authority), e.g., PKIX(Public Key Infrastructure with X.509), which provides authentication and access control as a whole unit. In this scheme, any service ticket issued by authority always carries information on the original recipient. This scheme is too strong for privacy-centered services. To issue a certificate which carries as few information on customers as possible, we adopt SPKI(Simple Public Key Infrastructure) instead of PKIX. After obtaining a certificate issued by an authorized server, a customer (client) submits the certificate to the service provider (server) in order to take services associated with the certificate. Then, the provider verifies the submitted certificate with the access control list and gives the permission to the client if verified. A customer can delegate a certificate to a third party, so that he / she can take services instead of the original certificate recipient. The implementation of certificate-based access control consists of SPKI certificate issuer, certificate verifier, access control list management, and delegate mechanism. These subsystems are created on the basis fo SPKI library written in Java. The proposed scheme is evaluated from the viewpoint of efficiency and privacy by applying it to a web based service provider.

• 社団法人電子情報通信学会の論文
• 2000-01-25

著者

• OKUNO HIROSHI

  Departments of Urology, Kyoto University Graduate School of Medicine

• Wen Wu

  Department Of Physics Nankai University:research Center For Nuclear Physics (rcnp) Osaka University

• SAITO Takamichi

  Department of Information Sciences, Faculty of Science and Technology, Science University of Tokyo

• Saito T

  Tokyo Denki Univ. Suita‐shi Jpn

• Saito Takamichi

  Department Of Information Sciences Faculty Of Science And Technology Science University Of Tokyo

• Okuno H

  Kyoto Univ. Kyoto Jpn

• UMESAWA Kentaro

  Department of Information Sciences, Science University of Tokyo

• Okuno Hiroshi

  Department Of Orthopaedic Surgery Tohoku University School Of Medicine

• Okuno Hiroshi

  Department Of Applied Materials Science Faculty Of Engineering Osaka Prefecture University

• Wen Wu

  Department Of Information Sciences Science University Of Tokyo

• Umesawa Kentaro

  Department Of Information Sciences Science University Of Tokyo

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