Blacklist data sharing method and acquisition method

Abstract

The invention relates to a blacklist data sharing method and a blacklist data acquisition method, and the blacklist data sharing method comprises the steps: carrying out the hash of a blacklist user identity identifier, generating a first secret key, and transmitting the first secret key to a receiver client, enabling the receiver client to only obtain the first secret key after the hash, the blacklist user identity identification cannot be acquired, therefore, the blacklist user identity identification of the user can be ensured not to be leaked in the transmission process. And on the other hand, the initiator client generates a first key corresponding to each receiver client, needs to receive each signature identity data returned by each receiver client, accumulates all signature identity data to generate a blacklist key, and then performs uplink operation. The blacklist secret key comprises the signature identity data of all the mechanisms, mutual trust alliance construction among the mechanisms is facilitated, efficient sharing of the blacklist data is achieved, and the utilization efficiency of the blacklist data is improved.

Description

technical field [0001] The present application relates to the technical field of information security, in particular to a blacklist data sharing method and obtaining method. Background technique [0002] As a valuable private data, blacklist data is owned by various organizations. At present, based on the consideration of data security, various institutions are worried about data leakage, so they all hold their own, which leads to insufficient sharing of existing blacklist data, and the island phenomenon is serious. [0003] Blacklist data includes blacklist user identity (referred to as id, such as ID number) and blacklist user detail data (referred to as data). Generally, blacklist user identity is used as the blacklist key on the chain (key), the blacklist user details data is used as the (value) on the chain, and the value can be retrieved through the key. [0004] Most of the existing blockchain blacklist data sharing methods are to upload the blacklist data to the ch...

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a blacklist data sharing method and an acquisition method for the problem that the traditional blacklist data sharing method cannot guarantee the privacy security on the chain after the blacklist data is uploaded to the chain.

Images