Research on database information searchable encryption algorithm for improving blockchain
In order to eliminate the risk of single point of failure and data tampering existing in traditional databases and improve data security,a new database information searchable encryption algorithm based on improved blockchain is studied.Set up the corresponding data database information storage scheme,combine blockchain technology to match interactive information,transform different data sharing intervals,perform internal data matching tasks,and achieve information matching.Calculate the time complexity of data search,search the size of the sum of encrypted labels,obtain integer samples according to the leakage function during reconstruction,calculate the data of the re-encryption key,and generate the key according to the calculation result to achieve encryption.The experimental results show that the packet loss rate of the improved blockchain database information searchable encryption algorithm is less than or equal to 0.05%,the tampering rate after encryption is less than 0.5%,and the database security is obviously optimized.
万方数据
维普
