Yunnan Power Grid Applies for Patent on Blockchain and Homomorphic Encryption-Based Data Authorization Method and System, Ensuring Data Security and Privacy

Yunnan Power Grid Applies for Patent on Blockchain and Homomorphic Encryption-Based Data Authorization Method and System, Ensuring Data Security and PrivacyOn January 31, 2025, the State Intellectual Property Office of China revealed that Yunnan Power Grid Corporation's Information Center had applied for a patent titled "A Data Authorization Method and System Based on Blockchain and Homomorphic Encryption," with publication number CN119379286A and an application date of October 2024. This patent represents a significant breakthrough in data security and privacy protection, offering new possibilities for future data authorization and trading models

Yunnan Power Grid Applies for Patent on Blockchain and Homomorphic Encryption-Based Data Authorization Method and System, Ensuring Data Security and Privacy

On January 31, 2025, the State Intellectual Property Office of China revealed that Yunnan Power Grid Corporation's Information Center had applied for a patent titled "A Data Authorization Method and System Based on Blockchain and Homomorphic Encryption," with publication number CN119379286A and an application date of October 2024. This patent represents a significant breakthrough in data security and privacy protection, offering new possibilities for future data authorization and trading models.

The patent abstract details the method and system's operation. First, the data provider generates a pair of symmetric encryption keys. The public key is used to encrypt the target data, resulting in ciphertext. The system then calculates the hash value of the ciphertext and signs it using the private key, generating a data credential. With this credential, the data provider can apply for authorization. Upon approval, the encrypted data is uploaded to the blockchain for storage, ensuring its integrity and immutability.

The system's security and efficiency are also evident in data transactions. When a data provider and user need to conduct a transaction, they first agree on the terms and request public keys. The signed contract is then uploaded to the blockchain, enhancing traceability and transparency. The system verifies the contract signatures and both parties' account balances; funds are only transferred from the user to the provider if all conditions are met. Finally, the data provider sends the decryption key to the user, completing the transaction.

This patent cleverly combines blockchain and homomorphic encryption technologies, ensuring the trustworthiness and traceability of data authorization information. Blockchain's decentralized and immutable nature guarantees the authenticity and integrity of data authorization information, preventing malicious tampering or forgery. Meanwhile, homomorphic encryption allows data computation without decryption, effectively protecting data privacy during transactions and preventing sensitive data leakage. This combination provides dual protection for data authorization and transactions, effectively resolving the conflict between data security and privacy.

The patent's core lies in its comprehensive control and security assurance of the data authorization process. Every stage, from data encryption and credential generation to authorization application, on-chain storage, data transactions, and decryption key distribution, is meticulously designed to ensure data security and integrity. The use of homomorphic encryption further safeguards privacy during transactions, mitigating the risk of sensitive data leakage and providing users with a more secure trading environment.

Furthermore, this patent provides new ideas for innovative data authorization and trading models. In the digital age, data is a crucial production factor, making its authorization and trading increasingly important. Traditional methods often struggle to balance data security and privacy, but this patent effectively addresses this challenge. Its standardized management of data authorization and transaction processes provides technical support for building a more comprehensive data market.

It's noteworthy that the applicant, Yunnan Power Grid Corporation's Information Center, established in 2006 and located in Kunming, is a software and IT services company. Tianyancha data shows that the company has participated in 1150 bidding projects, holds 562 patents, and possesses 4 administrative licenses. This demonstrates the company's extensive experience and technical capabilities in IT, supporting the reliability and practicality of its patented technology.

Analysis of this patent reveals significant achievements in data security and privacy. The technology ensures the reliability and traceability of data authorization information while effectively protecting data privacy during transactions, laying a solid foundation for a secure and reliable data ecosystem. Future development and application of this technology will have immeasurable potential across various industries.

The patent's applications span numerous sectors, including power, finance, and healthcare. In the power industry, it can secure the storage and trading of power data; in finance, it can enhance the security and efficiency of financial data management and trading; and in healthcare, it can protect patient privacy by securing medical data storage and sharing.

This patent signifies a breakthrough in China's data authorization and privacy protection technology. With further development and refinement, it will contribute significantly to building a safer, more reliable, and more convenient data ecosystem. It offers stronger protection for data owners and safer access for users, ultimately promoting efficient data utilization and value realization. It represents a new paradigm for data security and privacy, providing strong technical support for the healthy development of future data markets. This is not only a technological innovation for Yunnan Power Grid but also a significant advancement for China in data security. Its successful application will have a profound impact on the future landscape of data security and privacy protection. Its widespread adoption in the near future will greatly boost socio-economic development. Its prominent advantages in addressing data authorization and privacy challenges make it a crucial technological direction in the future of data security. Yunnan Power Grid, as a pioneer in this technology, will continue to contribute to the development of data security. This technology not only solves technical problems but also reflects a high level of importance placed on data security and privacy protection, making a positive contribution to building a safer and more reliable data environment. Its success will further promote the healthy development of China's digital economy.