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Research on Access Control Model in P2P Network

Author: TangYanChao
Tutor: HuYuZuo
School: Xi'an University of Electronic Science and Technology
Course: Cryptography
Keywords: Peer Network Security Access Control Level
CLC: TP393
Type: Master's thesis
Year: 2005
Downloads: 247
Quote: 3
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Abstract


P2P network more and more attention has been paid , and security issues that affect the development of P2P network is an important aspect . Security issues include authentication, access control , auditing , encryption, secure communications and non-repudiation . This paper focuses on access control model of P2P networks , research suitable for P2P network access control model . Main tasks are as follows: a systematic introduction to the history of P2P networks and its main applications , analyzes and summarizes the structural characteristics of P2P network . Analysis of the current popular P2P network access control model ACL model and the advantages and disadvantages of RBAC model . Because P2P network user IP is not fixed and highly dynamic characteristics , ACL model is not suitable for P2P network ; RBAC model must rely on a secure center , so not suitable for P2P networks. Propose a new P2P network access control model - HBAC-in-P2P model, and gives its implementation. The program uses certificates model introduced reputation mechanism for division level , and according to Fermat's little theorem construct a set of keys to the certificate level supervision. The mandatory access control policies and discretionary access control policies into one, with strong flexibility and finer granularity of access control . In addition , the program also carried out on the certificate is valid and effective management , the certificate can be issued to the applicant in time to join a dynamic user .

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