A decentralized public key management method and management system based on trust network
A technology of decentralization and management methods, applied in the field of information security, can solve problems such as loose organization and not being widely used, and achieve the effect of accurate verification and guaranteed effectiveness
Active Publication Date: 2020-02-28
UNIV OF SCI & TECH BEIJING
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Also due to the loose organization, it is not widely used
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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 Image 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 a...
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The present invention primarily relates to the field of information security technology, and specifically relates to a novel decentralized public key management method and trust model, the method being constructed on a distributed data network platform like blockchain or P2P, ensuring each node of the platform is capable of participating in maintaining full life cycle management of a user public key, and recording a every status change in a user public key during a life cycle in ledger form. The present method can add public key records which have passed verification to a consistent public key storage structure of a platform to be saved; all public key records of the same user may be arranged from first to last in order of time to generate a public key log chain, and an authentication chain and a trust network may be formed based on a recommender signature; efficient public key search may be implemented based on a user identifier. The present invention ensures convenient and accurate issuance and acquisition of a user public key, ensures an acquired public key is valid, correct, consistent, and not deceptive, and can act as infrastructure to support 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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IPC IPC(8): H04L9/08
CPCH04L9/0825
Inventor 朱岩
Owner UNIV OF SCI & TECH BEIJING