A complete cross-domain identity authentication method based on blockchain technology
An identity authentication and blockchain technology, which is applied in the field of complete cross-domain identity authentication based on blockchain technology, can solve the problems of reducing the computational overhead of protocol authentication, complicated certificate management, and existing certificate management, so as to ensure authentication security, Realize the effect of entity identity authentication and reduce the computational burden
Active Publication Date: 2021-09-28
SICHUAN UNIV
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Problems solved by technology
The traditional PKI-based cross-domain authentication protocol can be well compatible with the existing PKI topology, but there is a problem of certificate management, which makes the cross-domain process additional problems such as certificate management and transfer overhead.
The cross-domain authentication protocol based on IBE technology solves the problems of complicated certificate management based on the traditional PKI authentication protocol, but it also increases the authentication calculation and communication overhead to a certain extent.
In addition to the above problems, due to the premise of the same cryptographic system in different domains, most authentication protocols cannot achieve complete cross-domain entity identity authentication
The existing cross-domain authentication protocol based on blockchain technology can greatly reduce the authentication calculation overhead of the protocol while solving the certificate management problem, and improve the authentication efficiency to a certain extent, but it cannot achieve complete cross-domain entity identity authentication.
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[0053] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Table 1 is the description of related protocol symbols.
[0054] Table 1 Description of related protocol symbols
[0055]
[0056] (1) System initialization
[0057] This step mainly includes three parts: domain entity public and private key initialization, blockchain network establishment, chain code deployment, and domain information storage.
[0058] (i) Domain entity public and private key initialization
[0059] All entities in domain A and domain B, including the corresponding domain proxy server and all users in the domain, initialize their public and private keys according to the domain cryptography system.
[0060] (ii) Establishment of blockchain network and deployment of chain code
[0061] This step is for the authentication server AS in domain A and domain B A and AS B Build a blockchain network. After approval, t...
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The invention discloses a complete cross-domain identity authentication method based on blockchain technology, including: (1) System initialization stage: this stage mainly realizes the initialization of public and private keys of domain entities, the establishment of blockchain network, and the initialization of chain codes. Processes such as deployment and domain information storage; (2) Intra-domain authentication stage: This stage mainly realizes user identity application, verification, update and revocation; (3) Cross-domain authentication stage: Through the user to be authenticated and the authentication server, the authentication server In the interaction with the blockchain, this stage securely realizes the complete cross-domain authentication of the user; steps (1) and (2) can only be performed once. The present invention realizes complete cross-domain entity identity authentication while improving authentication efficiency and guaranteeing authentication security.
Description
technical field [0001] The invention relates to the field of cross-domain identity authentication, in particular to a complete cross-domain identity authentication method based on block chain technology. Background technique [0002] Blockchain technology: Blockchain technology combines a series of computer technologies and cryptography technologies such as distributed storage, point-to-point communication, consensus mechanism and encryption algorithm to realize a highly credible node network that does not require third-party participation. According to whether the network has a node access mechanism and whether the subjects with control authority are concentrated, blockchains can be divided into three categories: public chains, private chains and alliance chains. As a typical representative of the alliance chain-Hyperledger is a blockchain technology project initiated by the Linux Foundation, which is dedicated to the development of cross-industry commercial blockchain plat...
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IPC IPC(8): H04L9/32
CPCH04L9/3247H04L9/3239H04L9/50
Inventor兰晓张红霞陈兴蜀金泓键曹琪
OwnerSICHUAN UNIV