Infectious disease close contact person identity tracking method for privacy protection

Abstract

The invention relates to a privacy-protected infectious disease close contact person identity tracking method, which comprises the following steps of: obtaining public keys of close contact persons for interactive authentication when the close contact persons are in contact with each other, exchanging information of the close contact persons after the authentication is successful, encrypting the information by using the public keys of the opposite sides, and joining a patient group by executing a group signature with time after one person is diagnosed; encrypted information of a close contact person in an infection period in a mobile phone of the patient being placed on a web, and a group signature for protecting privacy being attached to the encrypted information. A common user can read encrypted information in a website every day and decrypt the encrypted information by using a private key of the user, and if decryption succeeds, the encrypted information is reported to a related mechanism to be isolated by an isolation point. If necessary, the group manager can open the signature to track personnel information that confirms the patient. The privacy of a close contact person can be ensured not to be leaked, meanwhile, the anonymity of the group signature is utilized, the definite diagnosis fact of the patient is authenticated, meanwhile, information such as the identity of the patient can be hidden, and the privacy information of the close contact person of the patient can be protected.

Description

technical field [0001] The invention belongs to the field of identity verification and encryption, and in particular relates to a method for tracking the identity of close contacts of infectious diseases with privacy protection. Background technique [0002] Identity verification, also known as "verification" and "authentication", refers to the confirmation of user identity through certain means. There are many methods of identity verification, which can be basically divided into: identity verification based on shared keys and public key based authentication. Authentication for key encryption algorithms. Authentication based on a shared key means that the server and the user share a password or a set of passwords. When the user needs to perform identity verification, the user submits the password jointly owned by the user and the server by inputting or through the device with the password kept. After receiving the password submitted by the user, the server checks whether th...

AI Technical Summary

Problems solved by technology

[0005] ZL2020102678518 discloses a method for tracking close contacts of infectious diseases. This method is based on common non-contact devices such as Bluetooth to digitally record close contacts and establish contact history. It can map confirmed patients in a very short time. The relationship diagram of direct and indirect contact history. The personal information and device information involved in this method are managed by relevant institutions, and there is still a risk of privacy leakage.

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