성순화,

Vol. 35, No. 1, pp. 57-66, 2월. 2025
10.13089/JKIISC.2025.35.1.57, Full Text:
Keywords: Blockchain based Identity Wallet, Decentralized IDentifier(DID), P2P DID, P2P Elliptic Curve-based Ring Signature
Abstract

Self-sovereign identity (SSI) is one in which you have independent authority over yourself. Current identity verification solutions are not fully optimized due to various data and personal information leaks and heavy account management. Therefore, this study proposed an identity wallet and a blockchain-based P2P cloud DID(Decentralized IDentifier) classified by identity attributes to optimize the self-sovereign identity solution by interacting with them. Zero-knowledge snark is used to prove self-sovereign identity, and elliptic curve-based ring signatures are used to verify P2P cloud DID by identity attributes. The proposed solution analyzed the optimality of elliptic curve-based ring signatures compared to other ring signatures for identity verification of P2P cloud servers, and compared to other studies, the proposed solution shows an improvement in signature latency for service requirements.

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