Total system for preventing information outflow from inside

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Security kernel or utility

Reexamination Certificate

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Details

C713S150000, C713S182000, C713S187000, C726S002000, C726S022000, C726S026000, C726S031000

Reexamination Certificate

active

10297124

ABSTRACT:
Disclosed is a total system for preventing an online and off-line leakage of information, which includes a security maintenance client having a program storing a file in a storing device and a file security control part which encodes the file content to be stored in the storing device and stores a log information, and security maintenance server which receives the log information and a decoding key and decodes the encoded file. The security maintenance client further includes a communication security control part which has a communication program transmitting a file and encodes the file content to be transmitted to a transmission destination of a network and stores a log information. The security maintenance server further includes an automatic key transmission part which receives a decoding key to be transmitted to the transmission destination according to a file transmission security policy after receiving the log information and the transmission destination.

REFERENCES:
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patent: 6052728 (2000-04-01), Fujiyama
patent: 6154850 (2000-11-01), Idleman et al.
patent: 6185680 (2001-02-01), Shimbo
patent: 6622248 (2003-09-01), Hirai
patent: 6795921 (2004-09-01), Hayashi et al.
patent: 2002/0034306 (2002-03-01), Owada et al.
patent: 2002/0118954 (2002-08-01), Barton et al.
patent: 2003/0054879 (2003-03-01), Schneier et al.
patent: 2004/0255134 (2004-12-01), Miyamoto
patent: 2005/0105737 (2005-05-01), Asano
patent: 5-265832 (1993-10-01), None

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