Patent data access control and protection using blockchain technology.

Area of Science:

• Computer Science
• Information Security
• Intellectual Property Management

Background:

• Traditional patent review systems face challenges in data security and privacy protection.
• Existing technologies often struggle with effective data access control and content protection.
• The need for robust security in handling sensitive patent information is critical.

Purpose of the Study:

• To develop a profound patent data management system.
• To effectively control data access processes and protect patent information.
• To propose a novel patent data protection scheme leveraging blockchain technology and privacy-preserving algorithms.

Main Methods:

• Data fragmentation and distributed storage on blockchain nodes.
• Implementation of data encryption algorithms for secure sharing.
• Development of a re-encryption algorithm to reduce computational overhead.
• Verification through simulation experiments to assess security and performance.

Main Results:

• Encryption of 10 MB files takes 35 ms (64-bit) and 105 ms (128-bit).
• Decryption of 64 KB data takes 1 second with only 1% requiring asymmetric encryption.
• Effective control over user access methods and enhanced protection of applicant privacy and patent content.
• Reduced cloud computing overhead for patent offices through local resource utilization.

Conclusions:

• The proposed blockchain-based system significantly enhances patent data security and access control.
• The system demonstrates superior data security and model performance compared to existing methods.
• Offers a valuable research foundation and practical application for patent data protection and review systems.