A Semidecentralized PKI System Based on Public Blockchains with Automatic Indemnification Mechanism

Table 7

Comparison of the proposed scheme and other blockchain-based PKI.

Blockchain-based PKI	All certificates stored in blockchains	Cryptographic proof of all certificates stored in blockchains	Certificates stored in IPFS	Avoid single-point failure	Real time	High scalability
Ours		V	V	V		V
[8, 10–13]	V			V	V