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Decentralized public key management method and system based on trusted network

A technology of decentralization and management method, applied in the field of information security, can solve the problems of loose organization and not being widely used, and achieve the effect of accurate verification and guarantee of validity

Active Publication Date: 2017-08-18
UNIV OF SCI & TECH BEIJING
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Also due to the loose organization, it is not widely used

Method used

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  • Decentralized public key management method and system based on trusted network
  • Decentralized public key management method and system based on trusted network
  • Decentralized public key management method and system based on trusted network

Examples

Experimental program
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Embodiment 1

[0072] 1) Decentralized platform structure

[0073] This embodiment is built on the basis of the block chain system, such as Figure 6 As shown, the blockchain network includes the following entities:

[0074] ① System member P:={P 1 ,...,P n}: for each member P i It is an independent execution node of the system and stores a copy of the blockchain BC;

[0075] ②Distributed network net: a P2P network that ensures the interconnection between members in the system;

[0076] ③Block storage structure BC:={B 1 ,...,B n}: Blockchain is composed of many data blocks B i A distributed storage structure composed of each data block B i :={hdr i , body i} consists of a "block header hdr i " and a "data store body" containing a certain number of data records i " consists of two parts;

[0077] ④Consensus agreement: An agreement to ensure that all members in the blockchain system cooperate with each other and obtain common results, such as mining mechanism, Byzantium consensus ...

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Abstract

The invention mainly belongs to the technical field of information security, and specifically relates to a novel decentralized public key management method and a trusted model. The method is constructed on distributed data network platforms such as a block chain and P2P (Peer to Peer) in order to ensure that all nodes in the platforms can participate in maintenance of whole-life-cycle management of public keys of users, and the changes of the public keys of the users in various states in a life cycle are recorded in a bill form. Through the method, public keys passing verification can be recorded and added into a consistent public key storage structure of a platform to be saved; a public key log chain is generated for all public key records of the same user according to a time sequence, and an authentication chain and a trusted network are formed on the basis of a referrer signature; and efficient search of the public keys can be realized on the basis of user identifiers. Through adoption of the method, the public keys of the users can be issued and acquired conveniently and accurately, and the effectiveness, correctness, consistency and non-fraudulence of acquired public keys are ensured. The method can be taken as an infrastructure supporting authentication, encryption, integrity and accountability services.

Description

technical field [0001] The invention mainly belongs to the technical field of information security, and in particular relates to a trust network-based decentralized public key management method and management system. Background technique [0002] In recent years, with the widespread application of new technologies such as mobile smart devices and cloud computing, people communicate more and more through the Internet, e-commerce and online transactions are becoming more and more popular, and human beings are moving towards a digital society. In order to ensure the data confidentiality, integrity, availability and authenticity of various network activities in the digital society, various modern cryptographic techniques are widely used, especially public key cryptography, which has become the core of ensuring the security of the Internet and the entire digital society. Compared with traditional symmetric cryptography, public key cryptography can not only realize data encryption...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08
CPCH04L9/0825
Inventor 朱岩
Owner UNIV OF SCI & TECH BEIJING
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