Internet of Things private data rapid sharing method based on block chain

Abstract

The invention discloses an Internet of Things private data rapid sharing method based on a block chain, the private data transmitted by the method is encrypted data, and a proxy re-encryption scheme is adopted, so that the risk of leakage in a key transmission process is prevented, and the privacy data transmission efficiency is improved. In the process of transmitting the privacy information, more overhead for storage and connection compared with non-privacy information transmission is avoided, it is guaranteed that the privacy information is rapidly transmitted on a'content-centered network ', and the safety problem caused by leakage of the privacy information to a third party and secret key storage is not needed to be worried about. And the hash value which cannot be tampered ensures the correctness of the user identity and the transmission information. And the data in the block chain is stored in a distributed manner, so that the problem of single-point failure is prevented. Moreover, the system is lightweight for the environment of the Internet of Things, and can be operated under the Internet of Things. According to the invention, all parties can be effectively helped to share private Internet of Things data in a'content-centered network '.

Description

technical field [0001] The invention relates to block chain and proxy re-encryption technology, in particular to a block chain-based fast sharing method for Internet of Things privacy data. Background technique [0002] The Internet of Things (IoT) is an emerging concept of physical network modules consisting of various embedded sensors, actuators, software, and other components. With the rapid growth of the number of IoT devices and the success of many social media applications, IoT traffic has been growing vigorously, and users' low-latency and high-throughput data requirements are also constantly amplifying. In order to meet this requirement, a kind of so-called "content-centric network" has appeared nowadays. Unlike the traditional method of using network addresses to transfer content, the "content-centric network" sets a unique name for each content, and requests the data transferred by these names. When a request is received, the network will deliver the content to t...

AI Technical Summary

Problems solved by technology

However, in the "content-centric network", a large amount of connection and storage overhead may offset the original speed advantage

And the distribution and management of keys in traditional public key encryption schemes will also bring a series of new security threats

If a secure but complex encryption scheme is simply introduced, the low-power nodes in the Internet of Things cannot afford high-intensity calculations

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