Distributed Public Key Certificate-Issuing Infrastructure for Consortium Certificate Authority Using Distributed Ledger Technology

With the development of cloud services and Internet Things, integration heterogeneous systems is becoming increasingly complex. Identity management important in coordination various systems, public key infrastructure (PKI) widely known as an identity methods. In PKI, a certificate authority (CA) acts trust point to guarantee entities such users, devices, services. However, traditional CAs that delegate operations specific organization are not always suitable for services, new methodology required enable multiple stakeholders securely cooperatively operate CA. this study, we introduce concept consortium CA propose distributed certificate-issuing realizes The proposed enables organizations involving stakeholders. We identify four requirements cooperative operation design with ledger technology. Furthermore, present implementation smart contracts Hyperledger Fabric prove satisfies requirements. Finally, confirm issuance verification stable at approximately 4 3 ms, respectively.