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Systems Development Laboratory Information and Communication Systems Information Service Laboratory Hitachi, Ltd., Web site【1st July 2010 News Release】 http://www.hitachi.co.jp/New/cnews/month/2010/07/0701.html 99.78% detection accuracy in 7 types of P2P file-sharing software including Winny ■ Sponsored research from the Ministry of Characteristics Internal Affairs and Communications. 1. High-speed detection of P2P communication Instead of analyzing every packet in a Detection accuracy of 99.78% for P2P file sharing software Script files for defining communication, the developed software inspects Packet on a broadband link detection procedures only the first packet showing characteristics of P2P packet PerfectDark （10Gbit/s） Winny WinMX packet … communication, thereby achieving high-speed processing. Flow First Filtering Detection ＜①First-Packet-Pass-filter technology＞ analyzing packet process Decoding Detection results process process process 2. High-accuracy detection of encrypted P2P communication Public key The developed decryption technology detects packet RSA DSA ECDSA cryptography encrypted P2P communication with high accuracy. Symmetric key RCx xDES AES Flow cryptography ＜②High-accuracy detection technology＞ information Hash function MD-x SHA-x CRC-x code module samples ■File sharing software detected Winny, Winnyp, Perfect Dark, Bit torrent, Lime Wire, ①First Packet ②High-accuracy Pass filter technology detection technology WinMX, share * 90% of domestic P2P file sharing software users covered Experiment done on the Internet simulator of NICT Hokuriku Research Center「StarBED」 ■A word from the development team P2P （Peer to Peer） file sharing software, such as Winny, while enabling users to easily and directly share music and movie files, also carries with it the risk of virus We will work towards the practical use of the contamination resulting in socially damaging information leaks. Hitachi has developed a software, covering detection and control of P2P high-speed software for detecting P2P file sharing software. Evaluation tests communications and contribute to resolving demonstrated that seven types of file sharing software were detected with an accuracy of problems with network security. 99.78% on a 10Gbit/s broadband link. ©2010 Hitachi, Ltd., Research & Development Group. All rights reserved. Issued by R&D Group, Hitachi, Ltd. NRD 10-0701.

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