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A EPGP-based Secure E-mail Protocol with Bi-directional Authentication and Its Realization

Author: XiaoMingYu
Tutor: XuXiangYang
School: Hunan University
Course: Applied Computer Technology
Keywords: Secure e-mail protocol PGP Elliptic curve cryptosystem Mutual authentication
CLC: TP393.098
Type: Master's thesis
Year: 2008
Downloads: 48
Quote: 0
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Abstract


Email (Electronic Mail, E-Mail) is the oldest and most widely used service on the Internet . With e - mail development and wide application , more and more private and commercially sensitive information transmitted online by mail , its security problem has been a cause for concern , the existing secure mail protocol , PGP is the most classic is also the most widely applied a . PGP practical application shows some shortcomings , this paper PGP reflect the problems in terms of security , authentication , certificate management , mainly to do the work of the following aspects : 1 . Traditional PGP protocol encrypted and signed using the RSA algorithm , the contradiction between security and efficiency . Safer by using efficient elliptic curve cryptosystem (ECC) to replace the traditional PGP agreement to use the RSA algorithm is proposed based on elliptic curve cryptosystem the PGP protocol ( EPGP ) . Improved the PGP protocol the traditional PGP agreement has higher security and reliability . 2 ( 1) on the basis of , for the EPGP receiver non-repudiation and key management issues , proposed a suitable EPGP mutual authentication mechanism . In the EPGP agreement introducing a trusted third party CA to achieve the management of the public key by the CA and the conflict when the communicating parties to provide arbitration the EPGP protocol , thereby obtaining a bidirectional authentication . The EPGP protocol improved transceiver both mutual authentication and key management flexibility , and limited permission of CA has an obvious advantage than traditional algorithm .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > The application of computer network > E-mail ( E -mail )
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