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Communications system with security checking functions for file transfer operation

  • US 20070079365A1
  • Filed: 03/02/2006
  • Published: 04/05/2007
  • Est. Priority Date: 09/28/2005
  • Status: Active Grant
First Claim
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1. A communications system for transferring packets, comprising:

  • (a) a router comprising;

    a security condition definition unit receiving a set of security conditions, a security condition database storing the received security conditions, and a packet parser that identifies and parses a packet produced by a file transfer application protocol, extracts from the packet a destination address and a security condition ID that a sending user has specified for a file contained in the packet, determines whether the extracted destination address satisfies the security condition corresponding to the user-specified security condition ID and, if not, discards the packet to prevent information leakage; and

    (b) a user terminal comprising;

    a security condition user interface that requests the router to provide information about the security conditions and gives the security condition ID to the file to indicate which security condition the sending user has specified.

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