Network system enabling transmission control
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United States of America Patent
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May 16, 2006
Grant Date -
Jun 5, 2003
app pub date -
Feb 14, 2002
filing date -
Dec 5, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A network system capable of preventing the leakage of a confidential file by an inadvertent act of a transmitting party and capable of meeting the requirement for an arbitrary file format is disclosed. A label indicating a security level ('confidential' or 'unclassified') is attached to the file in a client terminal, which transmits the labeled file outside. A transmission management program on a gateway server checks the label of the file, and in the case where the security level is 'unclassified', transmits the file to an external network. Also, a label management program manages the labeled file in the client terminal.
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