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http://dx.doi.org/10.13089/JKIISC.2019.29.2.377

Token-Based IoT Access Control Using Distributed Ledger  

Park, Hwan (Division of Information Security, Mokpo National University)
Kim, Mi-sun (Division of Information Security, Mokpo National University)
Seo, Jae-hyun (Division of Information Security, Mokpo National University)
Publication Information
Journal of the Korea Institute of Information Security & Cryptology / v.29, no.2, 2019 , pp. 377-391 More about this Journal
Abstract
Recently, system studies using tokens and block chains for authentication, access control, etc in IoT environment have been going on at home and abroad. However, existing token-based systems are not suitable for IoT environments in terms of security, reliability, and scalability because they have centralized characteristics. In addition, the system using the block chain has to overload the IoT device because it has to repeatedly perform the calculation of the hash et to hold the block chain and store all the blocks. In this paper, we intend to manage the access rights through tokens for proper access control in the IoT. In addition, we apply the Tangle to configure the P2P distributed ledger network environment to solve the problem of the centralized structure and to manage the token. The authentication process and the access right grant process are performed to issue a token and share a transaction for issuing the token so that all the nodes can verify the validity of the token. And we intent to reduce the access control process by reducing the repeated authentication process and the access authorization process by reusing the already issued token.
Keywords
IoT; Distributed ledger; Tangle; Access control; Token;
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