This work aims to expand the understanding on the nature of institutional innovation and the goal of knowledge innovation of intellectual property (IP) law in the era of big data (BD) and to avoid the risks of information security in the IP service system. On the basis of the era of BD, the nature of institutional innovation and the goal of knowledge innovation in IP law are systematically discussed. Combined with smart contract (SC) technology, an IP service system based on blockchain technology is designed to ensure the security of IP services. The SC is optimized from the perspective of concurrency, and the contract transactions (CTs) are clustered. Moreover, considering the execution time (ET) and available resources of CTs, a speculative concurrency control algorithm that can realize intelligent contract scheduling is proposed. On the basis of the ciphertext-policy attribute-based encryption (CP-ABE) algorithm, a policy-updatable attribute encryption algorithm is designed. The improved CP-ABE algorithm includes six steps: system initialization, attribute private key generation, encryption, decryption, ciphertext policy generation, and ciphertext policy update. The identity parameter of the traceability manager is introduced into the improved CP-ABE scheme, which significantly increases the amount of computation of bilinear mapping, thus resulting in the time cost of encryption and decryption being approximately 350 ms and 300 ms higher than that of the CP-ABE scheme. Using the technical mode of “blockchain + SC,” the design of the IP service system is realized, which has important reference value for the institutional innovation of IP law.

旨在扩大对大数据时代知识产权法制度创新本质和知识创新目标的认识，规避知识产权服务体系中的信息安全风险。立足BD时代，系统探讨了知识产权法制度创新的本质和知识创新的目标。结合智能合约（SC）技术，设计基于区块链技术的IP服务系统，保证IP服务的安全。SC从并发角度进行优化，合约交易（CT）集群化。此外，考虑到CT的执行时间（ET）和可用资源，提出了一种可以实现智能合约调度的推测并发控制算法。在密文策略属性加密(CP-ABE)算法的基础上，设计了策略可更新属性加密算法。改进的CP-ABE算法包括系统初始化、属性私钥生成、加密、解密、密文策略生成和密文策略更新六个步骤。改进的CP-ABE方案中引入了溯源管理器的身份参数，显着增加了双线性映射的计算量，导致加解密的时间成本比传统方案分别高出约350 ms和300 ms。 CP-ABE 方案。利用“区块链+SC”的技术模式，实现了知识产权服务体系的设计，对于知识产权法的制度创新具有重要的参考价值。