Intelligent terminal safety communication method based on block chain

Abstract

The invention provides an intelligent terminal safety communication method based on a block chain, which comprises the following steps that: both intelligent terminals request a signature from hardware private key storage equipment through embedded block chain nodes to obtain signature data, and the both intelligent terminals interact to obtain the signature data of the other intelligent terminals, wherein a private key of the blockchain node is pre-stored in the hardware private key storage device; both intelligent terminals perform CA verification according to the white list in the distributed bill and the signature data of the opposite side, wherein public keys of all admission blockchain nodes are written into the white list in advance; after CA verification is passed, both intelligentterminals communicate by using a symmetric encryption algorithm, wherein the blockchain node achieves consensus through a consensus algorithm, and adjusts the topology and the member list of the blockchain network through a distributed identity identification method. According to the invention, the communication complexity is reduced, and the lightweight secure communication is realized; under the condition that resources are limited, safe and credible interaction of data and services between the intelligent terminals is achieved.

Description

technical field [0001] The invention belongs to the technical field of communication security, and in particular relates to a secure communication method based on blockchain. Background technique [0002] In some specific security and regulatory application scenarios, it is necessary to use smart mobile terminals containing blockchain nodes. In view of the limited resources of smart mobile terminals, unstable network connections, and susceptibility to interference, it is necessary to integrate multiple elements such as communication, security, and confidentiality of smart terminals. [0003] In the process of CA (Certificate Authority, certificate authority) verification in the existing block chain-based intelligent terminal security communication method, it is necessary to use the public key infrastructure (Public Key Infrastructure, PKI) to complete the trust through the hierarchical certification authority. The conduction and identity confirmation, there are problems suc...

AI Technical Summary

Problems solved by technology

[0003] In the process of CA (Certificate Authority, certificate authority) verification in the existing block chain-based intelligent terminal security communication method, it is necessary to use the public key infrastructure (Public Key Infrastructure, PKI) to complete the trust through the hierarchical certification authority. The conduction and identity confirmation, there are problems such as the verification link is too long, and the root node of trust needs to be centralized, which consumes a lot of resources

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