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P2P Private P2P 2010 All rights reserved. No part of this
publication and file may be reproduced, stored in a retrieval
system, or transmitted in any form or by any means, electronic,
mechanical, photocopying, recording or otherwise, without prior
written permission.
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(Private Network) P2P P2P (Private P2P Network) P2P (Anonymous
P2P Communication) 2
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(Private Network) P2P P2P (Private P2P Network) P2P (Anonymous
P2P Communication) 3
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(Private Network) Digital Data Network Leased Line (DDN)
Virtual Private Network (VPN) 4
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- DDN DDN (Digital Data Network Leased Line) 5
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DDN 6
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DDN 7 64K128K~512K768K~2048K ( ) 45M155M622M2.5G
3,6004,60012,700 042,40071,280213,800555,880
>0~3~10~20~30149,500306,800920,5002,393,300 3,6004,60014,000
046,00079,200237,600617,760
>0~3~10~20~30165,000340,1001,022,8002,659,280 ( ) 450 1,462
8,70019,14057,420- ( )
http://www.cht.com.tw/BusinessCat.php?Module=Fee,Describe&CatID=360&PageID=792
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VPN (1) (Virtual Private Network, VPN): ( ) 8
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VPN (2) Integrity Authentication Nonrepudiation Confidentiality
9
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VPN (3) Hash 10 Private peer-to-peer (P2P)
~!@#$%^&*()_+~!@#$
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IPSec VPN IPSec 3 ISAKMP(Internet Security Association and Key
Management Protocol) IKE(Internet Key Exchange ): (secret key)
AH(Authentication Header): (integrity check) ESP(Encapsulating
Security Payload): (data encryption) (integrity check)
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ISAKMP SA Establishment 12 From:
http://docs.hp.com/en/J4256-90003/ch01s04.html ISAKMP Phase One
(Main Mode, MM) Negotiate and establish an ISAKMP SA, a secure
communication channel for further communication by generating a
Diffe-Hellman shared value as the base for a symmetric (shared)
key. Verify the remote system's identity (primary authentication)
ISAKMP Phase Two (Quick Mode, QM) Negotiate two SAs for IPSec
transforms (AH or ESP): one for inbound and one for outbound
traffic.
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Diffie-Hellman Key Generation 13 From:
http://docs.hp.com/en/J4256-90003/ch01s04.html
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Primary Authentication Preshared keys: A preshared key is
manually configured on both systems and is used for authentication
only. Digital Signatures: Digital signatures are based on security
certificates, and are managed using a Public Key Infrastructure
(PKI) consisting of CAs (Certificate Authorities). 14 From:
http://docs.hp.com/en/J4256-90003/ch01s04.html
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AH Symmetric Key Authentication 15
http://docs.hp.com/en/J4256-90003/ch01s02.html?btnPrev=%AB%A0prev
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ESP Symmetric Key Cryptosystem 16
http://docs.hp.com/en/J4256-90003/ch01s03.html?btnPrev=%AB%A0prev
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ESP Illustration 17 From:
http://msdn.microsoft.com/zh-tw/magazine/ee412260.aspx
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(Private Network) P2P P2P (Private P2P Network) P2P (Anonymous
P2P Communication) 18
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P2P P2P P2P P2P 19
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P2P File Sharing P2P 20
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P2P 21
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P2P 22
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P2P P2P P2P 23
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P2P 24
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P2P P2P 25
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P2P Winny Winny 1652 2005 26
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P3P 2009 P2P P3P ICO 27
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P3P 2010 5 10 25 28
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(Private Network) P2P P2P (Private P2P Network) P2P (Anonymous
P2P Communication) 29
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P2P (1) Private P2P Networks (network overlay) (physical link)
(logical link) 30
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P2P (2) P2P Free Rider 31
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P2P (3) 32 Network P2PClient/Server PublicPrivate Group
basedF2F
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P2P -- P2P VPN 33
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P2P VPN P2P VPN (Centralized) (Decentralized) (Structured)
(Unstructured) 34
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(Centralized) VPN P2P VPN P2P Hamachi GBridge Wippien 35 Peer
to peer Relayed
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(Decentralized) P2P VPN P2P overlay P2P (Structured)
(Unstructured) 36
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(Structured) IPOP (IP over P2P) 37 Mike John
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(Unstructured) N2N P2PVPN 38
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(Private Network) P2P P2P (Private P2P Network) P2P (Anonymous
P2P Communication) 39
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P2P Anonymous P2P ? P2P P2P P2P IP 40 P2P P2P IP = 140.118.X.X
IP = 114.46.X.X
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P2P P2P (Anonymous Browsing) (File-Sharing) (E-mail) (Remote
login) (Instant Messaging) 41
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P2P P2P P2P (File Sharing) Freenet GNUnet ANts P2P iMule Vuze
Perfect Dark Share 42 1. P2P 2. 3.
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P2P (Cont.) JAP Tor I2P 43 1. 2. 3. P2P P2P
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Freenet 44 P2P http://freenetproject.org/
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iMule 45 P2P
http://contentdb.emule-project.net/view.php?pid=1719
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Vuze 46 P2P http://en.wikipedia.org/wiki/Vuze
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JAP P2P 47
http://anon.inf.tu-dresden.de/screenshot_en.html
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Tor P2P 48 http://www.torproject.org/index.html
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Unimessage-based Split message-based Replicated message-based
49 P2P
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Unimessage-based A.Fundamental: (onion routing) ( Tor)
B.Probability-Based: ( Crowds) C.Mimic Traffic-Enhanced: ( Tarzan)
50 P2P Destination A. B. C.
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51 P2P From: R. Y. Xiao, Survey on anonymity in unstructured
peer- to-peer systems, Journal of Computer Science and Technology,
2008.
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Split message-based (secret sharing) ( Free Haven) 52 P2P
Message (request or file)
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(publish anonymity) 53 P2P
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Replicated message-based P 5 (Peer-to-Peer Personal Privacy
Protocol) (Broadcast) (Multicast) 54 P2P
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(Sending anonymity) 55 P2P
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56 Questions?? Thanks for Your Listening!
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