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oai:ipsj.ixsq.nii.ac.jp:00113285 2025-01-20T19:42:23Z 1164:2735:7896:7897

The Bitcoin Network as Platform for Trans-Organizational Attribute Authentication The Bitcoin Network as Platform for Trans-Organizational Attribute Authentication Jason, Jason,Paul,Cruz Yuichi, Kaji Jason, PaulCruz Yuichi, Kaji The role-based access control (RBAC) is a natural and versatile model of the access control principle. In the real world, an organization commonly provides a service to a user who owns a certain role that was issued by a different organization. However, such a trans-organizational RBAC is not common in a computer network because it is difficult to establish both the security that prohibits malicious impersonation of roles and the flexibility that allows small organizations/individual users to fully control their own roles. This study proposes a system that makes use of Bitcoin technology to realize a trans-organizational RBAC mechanism. Bitcoin, the first decentralized digital currency, is a payment network that has become a platform for innovative ideas. Bitcoin's technology, including its protocol, cryptography, and open-source nature, has built a good reputation and has been applied in other applications, such as trusted timestamping. The proposed system uses Bitcoin technology as a versatile infrastructure to represent the trust and endorsement relationship that are essential in RBAC and to realize a challenge-response authentication protocol that verifies a user's ownership of roles. The role-based access control (RBAC) is a natural and versatile model of the access control principle. In the real world, an organization commonly provides a service to a user who owns a certain role that was issued by a different organization. However, such a trans-organizational RBAC is not common in a computer network because it is difficult to establish both the security that prohibits malicious impersonation of roles and the flexibility that allows small organizations/individual users to fully control their own roles. This study proposes a system that makes use of Bitcoin technology to realize a trans-organizational RBAC mechanism. Bitcoin, the first decentralized digital currency, is a payment network that has become a platform for innovative ideas. Bitcoin's technology, including its protocol, cryptography, and open-source nature, has built a good reputation and has been applied in other applications, such as trusted timestamping. The proposed system uses Bitcoin technology as a versatile infrastructure to represent the trust and endorsement relationship that are essential in RBAC and to realize a challenge-response authentication protocol that verifies a user's ownership of roles. technical report 情報処理学会 2015-02-24 application/pdf 研究報告数理モデル化と問題解決（MPS） 12 2015-MPS-102 1 6 AN10505667 https://ipsj.ixsq.nii.ac.jp/record/113285/files/IPSJ-MPS15102012.pdf eng