Device Driver for Decryption/Encryption Engine
The purpose of this project was to provide a Windows NT device driver to allow data on selected disk drive partitions to be encrypted and decrypted using our client's Decryption / Encryption card. The driver was written so that operating system calls to the disk device drivers to read or write data are intercepted and the data directed to the Decryption / Encryption card. This has the effect of making data on the drive unreadable except to authorized users who possess a 'key' to the system. This key system includes a physical key for enabling the card and software 'keys' which control the type of encryption done for a particular drive partition. |
