Encrypted Data Exchange via Blockchain Without Third-Party Control
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Solution Overview
Problem
Existing data exchange methods heavily rely on third-party platforms, which can access, use, and control data, making it difficult for data owners to supervise and manage, leading to significant security risks and data ownership issues.
Innovation Solution
Implement secure and trusted data exchange using a blockchain network with decentralized capabilities and smart contracts, enabling data providers and consumers to directly interact without a third-party intermediary, ensuring data ownership remains unchanged and using symmetric and asymmetric encryption algorithms for balanced security and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a third-party platform is introduced for data verification and exchange, then data security and trust are improved, but data ownership control and supervision capabilities deteriorate
Solution Approach 1:
The patent extracts the third-party platform from the data exchange system and replaces it with a blockchain-based decentralized system. By removing the intermediary platform, the system eliminates the power imbalance where platforms could access, use, and control data without effective supervision, while maintaining security through cryptographic protocols and smart contracts.
Solution Approach 2:
The patent implements self-service mechanisms where data owners directly control their data through private keys and can independently manage verification and exchange processes. The smart contract system automatically executes agreements without requiring third-party intervention, enabling data owners to maintain full control and supervision capabilities.
2Reliability
If a third-party platform is used for data exchange, then verification capability is improved, but information asymmetry and data barriers increase
Solution Approach 1:
The patent implements feedback mechanisms through the blockchain ledger that provides transparent, immutable records of all data exchange transactions. This feedback system eliminates information asymmetry by allowing all participants to verify the same information, while maintaining verification capability through cryptographic proofs and smart contract execution.
Solution Approach 2:
The patent creates a universal verification system where the blockchain network serves multiple functions: data verification, transaction recording, and trust establishment. This multi-functional approach eliminates the need for separate third-party verification platforms, reducing information asymmetry while maintaining robust verification capabilities.
3Productivity
If third-party platforms manage data exchange, then data exchange efficiency is improved, but data jurisdiction and user rights are compromised
Solution Approach 1:
The patent segments the data exchange process into independent, transparent steps: data storage, verification through smart contracts, and transfer via blockchain transactions. This segmentation maintains efficiency by automating the process while ensuring data jurisdiction through immutable blockchain records that clearly define ownership and usage rights.
Data Source
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AI summary
This application provides a data processing method. The method includes: A data provider encrypts source data to obtain a ciphertext of the source data, and uploads the ciphertext of the source data to a data storage platform for storage. Then, in response to a data application request of a data consumer, the data provider encrypts a storage address of the ciphertext of the source data by using a public key of the data consumer, and uploads the encrypted storage address to a blockchain network. The data consumer obtains the ciphertext of the source data from the data storage platform. In the method, a blockchain decentralization capability is used to implement secure and trusted data exchange by using a smart contract that is public and commonly visible to a plurality of parties. Based on the secure and trusted data exchange, this further implements data analysis, resolves an information asymmetry problem caused by a third-party platform, and breaks a data barrier.