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Research and Design of Secure File Transmission Systems Based on P2P

Author: WuXiaoFeng
Tutor: XuXiangYang
School: Hunan University
Course: Applied Computer Technology
Keywords: PKI Trust path Digital certificates P2P
CLC: TP393.08
Type: Master's thesis
Year: 2008
Downloads: 134
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Abstract


With the rapid development of information technology , P2P (Peer-to-Peer) technology is becoming the industry's research and the focus of attention . P2P network , each node plays the role of the client and server side , which makes network communication easier to share and interact more directly , but also led to the number and cost of resources are available to all users PC uniform distribution , that is, the so-called \These trends integrity in behavior management and distribution of resources to the distributed system challenges. Difficult to establish the identity of the user only , and not through additional mechanisms to enforce the constraint . Therefore , based on this , the safety system must be composed by a special way in order to ensure proper control and flexible management . PKI (Public Key Infrastructure) technology is widely used network security solutions . PKI core is to address the question of trust between entities in the information network , which uses digital certificates to identify the network identity of the entity . The digital certificate is a piece that contains the user identity , user public key and trusted entity digital signature data . Network communication , the communications network through the use of digital certificates to ensure the confidentiality of the data transmission , integrity and non-repudiation . The the PKI technology of P2P networks combined , confirmation of the identity of the entity in the application of PKI technology technology to confirm the identity of peers in the P2P network . Due to the characteristics of P2P network itself , traditional PKI model does not apply to the P2P network . This article , each node has a right to issuance and verification of certificates , which means that each node can own trust policy to other nodes issue a certificate , certificate distribution mixed DHT query technology . Insurance trust model for mixed user authentication method based on multiple certificate paths through various certification results obtained along the certification path , the combined trust strategy to determine the user's trust relationship , thereby enhancing the correct certification sex . Finally , specific implementation technology of P2P network files safe transmission system and method .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > Computer Network Security
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