Blockchain Watch List for Sensitive Data Security
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Solution Overview
Problem
Current blockchain networks face challenges in securely managing sensitive data elements, as they are vulnerable to malicious actions and cyber-attacks, which can compromise the integrity and privacy of sensitive information.
Innovation Solution
Implementing a blockchain-based watch list that allows authorized entities to monitor and filter sensitive data elements, stored in a distributed manner, using a consensus protocol to authenticate and encrypt data, thereby preventing unauthorized access and ensuring tamper-resistant protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensitive data is stored in a blockchain network, then data immutability and distributed storage are achieved, but the network becomes vulnerable to malicious actions and cyber-attacks
Solution Approach 1:
The patent introduces authorized entities as intermediaries between the blockchain network and sensitive data elements. These entities authenticate client devices and control access to the watch list, acting as a protective layer that prevents direct access and potential attacks while maintaining the immutability benefits of blockchain storage
Solution Approach 2:
The patent implements preliminary authentication and authorization actions before any data access or modification. Client devices must be authenticated by authorized entities before they can interact with the watch list, and consensus procedures are executed beforehand to validate modifications. This preliminary security measure prevents malicious actions before they can compromise the network
2Reliability
If authorized entities monitor and filter sensitive data elements, then data security is enhanced, but system complexity increases
Solution Approach 1:
The patent segments the security management function by separating authorized entities from the general blockchain network participants. Authorized entities are designated specifically for monitoring and filtering sensitive data, while other nodes maintain their standard functions. This segmentation allows complex security operations to be performed by specialized entities without burdening the entire network
Solution Approach 2:
The authorized entities serve multiple functions: they authenticate client devices, filter sensitive data elements, manage the watch list, and execute consensus procedures. This multi-functionality consolidates complex security operations into specialized entities, reducing overall system complexity while maintaining comprehensive data protection
Data Source
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AI summary
Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for managing sensitive data elements stored in a blockchain network. One of the methods includes receiving a request from a client device to perform a modification to a watch list that is stored in the blockchain network. The watch list includes one or more sensitive data elements. The blockchain network node determines whether the client device is authorized to modify the watch list based on a digital signature in the request. In response to determining that the client device is authorized to modify the watch list, a consensus procedure is performed on the request within the blockchain network. After a consensus is achieved, the blockchain network node updates the watch list based on the modification to the watch list.