Cross-service-provider epidemic situation data authorization method

Abstract

The invention relates to the technical field of epidemic situation data processing, and relates to a cross-service-provider epidemic situation data authorization method, which comprises the following steps that: 1, a client collects terminal information; 2, the client encrypts the data information through a proxy re-encryption algorithm; 3, a service provider locally stores the encrypted information and uploads a data index to a blockchain; 4, a user obtains the proxy re-encryption public key of an authorization target, and the user uploads the rekey generated by re-encryption and the pubparam to a starting service provider locally through a ReKey algorithm of proxy re-encryption; 5, the service provider locally converts the encrypted information through ReEnc re-encryption operation; 6, the service providers communicate with each other and upload the information to the blockchain, and notify an authorization decryption party; and 7, the decryption party locally obtains the original data through a ReDec method. The method has relatively good safety.

Description

technical field [0001] The invention relates to the technical field of epidemic data processing, in particular to a cross-service provider epidemic data authorization method. Background technique [0002] With the gradual popularization of mobile devices and the gradual improvement of mobile phone performance, mobile phones have played an important role during the epidemic. Mobile phones have become an important device for collecting users' geographic information and accessing information. This kind of user-level data collection is extremely efficient in helping epidemic tracking service providers to target infected users and contact users. However, with the continuous development of the epidemic situation, the epidemic tracking of a single service provider has gradually exposed problems. Although a single service provider has performed well in its service domain, with the flow of people, especially when people reach the service domain of other service providers After that,...

AI Technical Summary

Problems solved by technology

[0005] Most current epidemic tracking apps cannot effectively protect user data, they will automatically collect user data and upload it to the server for subsequent data analysis

That is: once the user agrees to use the app, the user will lose control of their data

[0006] 2. Information between service providers cannot communicate with each other, becoming an information island

[0007] Due to geographical, legal and other objective conditions, service providers cannot effectively and safely exchange information

It makes it difficult for users to perform cross-platform detection and reduces the efficiency of data usage

Users are likely to need to use multiple epidemic tracking apps at the same time to cope with the testing requirements in different regions, causing great inconvenience to users

[0008] 3. When data interacts across platforms, data permission issues

[0010] 4. Lack of efficient encryption methods

However, after the data is encrypted, it is difficult for the service provider to effectively authorize the decryption authority to the service provider receiving the data (as mentioned in question 3, the data should be authorized by the user), so there is still an urgent need for a method to set the decryption authority The encryption method specified in the encryption algorithm encrypts the data

[0012] In general, the current epidemic tracking apps are difficult to meet the current needs of people, especially since such apps collect important private information, people will pay more attention to the security of their privacy

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