Security enhanced virtual disk encryption system and technology

Abstract

The authors studied and improved the transparent encryption and decryption program of virtual disk encryption software,using technology of file system filter driver and methods of auditing,preventing U disk proliferation and cache leakage. A file system filter driver layer was attached to the virtual driver layer in the program of virtual disk encryption. Test results in Truecrypt under various versions of Windows operation system show that problems of U disk proliferation and cache leakage can be avoided when the security layer is attached onto the virtual disk encryption software,and users' operations can also be monitored and audited. The results indicate that the security layer can effectively enhance security performance of the virtual disk encryption software.