Application of Wireless Security in Mobile Office Automation System Based on Big Data

With the rapid development of China's higher education and the continuous expansion of university teaching scale, all major universities have designed and used office automation system in line with their own characteristics. However, due to technical or economic constraints in the development process, the system pays too much attention to the convenience of use and ignores the security, resulting in many security risks. Based on the above, this paper proposes a searchable database encryption storage scheme and a multi keyword searchable encryption scheme in distributed environment. Among them, this paper uses the non-relational database in the form of key value to improve the query performance. The test results show that the method studied in this paper can meet the security requirements. When the number of server nodes reaches 8, the throughput reaches 265 kb, which can meet the query speed and performance requirements.