【Author】
Li, Hui; Li, Ming
【Source】SCIENTIFIC REPORTS
【Abstract】The purposes are to develop the patent data profoundly, control the data access process effectively, and protect the patent information and content. The traditional patent review systems are analyzed. For the present patent data security and privacy protection technologies and algorithms, the patent information data are stored on different block nodes after data fragmentation using blockchain technology. Then the data are shared using the data encryption algorism. In this way, data access control can be restricted to particular users. Finally, a patent data protection scheme based on privacy protection is proposed. The security of the scheme and the model performance are verified through simulation experiments. The time required to encrypt 10 MB files with 64-bit and 128-bit data is 35 ms and 105 ms, respectively. The proposed re-encryption algorithm only needs 1 s to decrypt 64 KB data, and only 1% of the data needs asymmetric encryption. This greatly reduces the computational overhead of encryption. Results demonstrate that the system can effectively control the access methods of users, efficiently protect the personal privacy and patent content of patent applicants, and reduce the patent office cloud computing overhead using the local resources of branches. The distributed storage methods can reduce the cloud system interaction of the patent office, thereby greatly improving the speed of encryption and ensuring data security. Compared with the state of the art methods, the proposed patent data access and protection system based on blockchain technology have greater advantages in data security and model performance. The research results can provide a research foundation and practical value for the protection and review systems of patent data.
【摘要】其目的是为了深入开发专利数据，有效控制数据访问过程，保护专利信息和内容。对传统的专利审查系统进行了分析。对于目前的专利数据安全和隐私保护技术和算法，专利信息数据在使用区块链技术进行数据分割后存储在不同的区块节点。然后使用数据加密算法共享数据。通过这种方式，可以将数据访问控制限制在特定用户。最后，提出了一个基于隐私保护的专利数据保护方案。该方案的安全性和模型性能通过模拟实验得到验证。用64位和128位数据加密10MB文件所需的时间分别为35ms和105ms。所提出的重新加密算法只需要1秒来解密64KB的数据，只有1%的数据需要非对称加密。这大大降低了加密的计算开销。结果表明，该系统可以有效控制用户的访问方式，有效保护专利申请人的个人隐私和专利内容，并利用分支机构的本地资源减少专利局的云计算开销。分布式存储方法可以减少专利局的云系统交互，从而大大提高了加密的速度，保证了数据的安全性。与现有技术方法相比，所提出的基于区块链技术的专利数据访问和保护系统在数据安全和模型性能上有较大优势。研究成果可以为专利数据的保护和审查系统提供研究基础和实用价值。
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