DATA ENCRYPTION DEVICE BASED ON PROTOCOL ANALYSIS

摘要

Cryptograhic device (CND) that encrypts the user data passing through it. CND is located between HOST and DTE. It has two interfaces communicating through the INT protocol. CND analyzes the transmission and encrypts/decrypts user data on the fly. The device bypasses all control and status information required for the protocol and only encrypt the user data that are being transported by the INT protocol.