Abstract
In the current network, there are still many security issues, such as identity fraud and address spoofing. In traditional Public Key Infrastructure(PKI), most trust models adopt a centralized trust model with a single-point trust anchor. The existing PKI system lacks a unified authentication framework and is low efficiency. Aiming at the problems of how to store public keys efficiently and how to make the network secure and trustworthy, this paper proposes a new trust anchor framework based on consortium blockchain, named Trust Anchor Chain(TAC). This study uses the form of consortium to manage TAC, proposes a hierarchical naming ID, named TAC ID to uniquely identify the user in TAC, and proposes a new data structure, named Struct Radix Trie, to store public key information in TAC to improve efficiency. Section 4, TAC has superiority through the comparison between local experiments and remote experiments. In TAC, users can access each other in the TAC, get the public key, and ensure the correctness of the identity. All users work together to maintain TAC to achieve equal network interconnection, security and credibility.
Published Version
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