DATA PROCESSING APPARATUS, DATA PROCESSING METHOD AND PROGRAM

DATA PROCESSING APPARATUS, DATA PROCESSING METHOD AND PROGRAM

An information leakage prevention apparatus 100 receives, from a LAN 109, communication data transmitted by a PC 112 to Internet 111, and when the received data has been encrypted, analyzes a log describing content of data processing performed in the PC 112 and extracts a key used to encrypt the com...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: UEDA, Takeshi, NEGI, Tomonori, SAKURAI, Shoji, KAWAUCHI, Kiyoto
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRIC DIGITAL DATA PROCESSING
ELECTRICITY
PHYSICS
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:An information leakage prevention apparatus 100 receives, from a LAN 109, communication data transmitted by a PC 112 to Internet 111, and when the received data has been encrypted, analyzes a log describing content of data processing performed in the PC 112 and extracts a key used to encrypt the communication data in the PC 112. Further, the information leakage prevention apparatus 100 decrypts the communication data using the extracted key and determines whether or not a keyword is included in a decryption result. If the keyword is not included in the decryption result, the information leakage prevention apparatus 100 transmits the communication data to the Internet 111 through a WAN 110.