Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Protection at a particular protocol layer
Patent
1997-09-12
1999-12-28
Hua, Ly V.
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Protection at a particular protocol layer
713201, G06F 1214
Patent
active
060095261
ABSTRACT:
An information security system for tracing information outflow from a remotely accessible computer or computer network is disclosed. The system includes an internal communication system that has at least one internal computer for transmitting security information by tracing data through communication equipment, outputting the data to an external output means, and connecting the internal computer to an external network. A communication monitoring device stores information regarding the data that is to be transmitted by applying a security policy according to a security grade assigned to the destination to which the data is to be transmitted. The communication monitoring device is configured for extracting the identification of the destination from the transmitted data. It also includes a communication monitoring server for storing and displaying predetermined information about the data to be transmitted and for determining whether the tracing information is stored according to the security grade for the identified destination. A method of operating the disclosed system is also described.
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