Beijing Yizhi Technology Applies for Blockchain Data Query Patent, Guaranteeing Privacy Security

Beijing Yizhi Technology Applies for Blockchain Data Query Patent, Guaranteeing Privacy SecurityBeijing Yizhi Technology Co., Ltd

Beijing Yizhi Technology Applies for Blockchain Data Query Patent, Guaranteeing Privacy Security

Beijing Yizhi Technology Co., Ltd. filed a patent in June 2024 for a "Data Query Method, Device and Medium Based on Blockchain and Homomorphic Encryption," with publication number CN118921159A. The patent aims to achieve privacy protection and accuracy in data query processes by combining blockchain and homomorphic encryption technologies.

The patent abstract shows that the method mainly includes the following steps:

1. Receiving the public keys of the querier and the queried party, the plaintext homomorphic numbers of the index sequence, and the homomorphic numbers of data corresponding to the index.

2. Responding to the query request from the querier.

3. Verifying the query result. If the query is successful and the index homomorphic numbers match the index list stored on the chain, the queried party provides the corresponding data to the querier.

The data query method proposed by this patent has the following advantages:

• Preventing the queried party from forging query results, ensuring result accuracy. Blockchain technology allows for tamper-proof storage and verification of query results, effectively preventing malicious data tampering by the queried party.

• Protecting the privacy of the query content of both the querier and the queried party. Homomorphic encryption technology enables calculations without decrypting the data, thereby ensuring the security of the query content.

• No need for a trusted third-party for trusted setup, resulting in lower on-chain overhead. Compared to traditional zero-knowledge proof schemes, homomorphic encryption-based solutions do not rely on trusted third parties, reducing the complexity and cost of on-chain operations.

The application of this patent reflects Beijing Yizhi Technology's innovative capabilities in blockchain and privacy computing. The proposed technical solution is expected to be widely used in the field of data query. As data privacy protection awareness continues to grow, the data query method proposed by this patent is of significant importance in ensuring data security and improving data application efficiency.