With the development of Mobile Internet, mobile device operating system encounters more and more security risks. Recently, the researchers have found there are massive operating system vulnerabilities of mobile devices and criminals can steal the user data through phishing attacks. It leads to lots of Trojan programs coming, enterprise data being lost, privacy being stolen, which threatens enterprise data security seriously.

BestEMM ensures data security through the establishment of exclusive DSA. Have access to the virtual file system through DSA driver layer. The virtual file system is similar to virtual memory as virtual space to save files from the disk, which is transparent internally, hidden externally. Upper app can read and write data transparently like visiting the standard files through calling the virtual file system interface, and don't need to care data encryption security issues. DSA will automatically break data and protect data with encryption..

DSA is encrypted with high strength, so external programs cannot get any data details of DSA. DSA includes disk partition information, file directory table, key safe area and the encrypted file storage area. The files stored by DSA all use a random key one time and AES256 encryption algorithm, and the random session key can be stored with encryption in the safe through the PKI public key. The system deploys DSA technology solutions to achieve encryption protection of higher level and protect against data analysis and crack effectively.