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Identity-Based Authentication System Research and Implementation

Author: ZhuZuo
Tutor: CuiGuoHua
School: Huazhong University of Science and Technology
Course: Information Security
Keywords: Public-key cryptosystem Identity-Based Cryptography Authentication and encryption Role-based access control
CLC: TN918.1
Type: Master's thesis
Year: 2011
Downloads: 12
Quote: 0
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Abstract


Public key cryptosystem is the development of cryptography has opened a new direction , it also brings a broader research platform. Identity-based cryptography simplifies the traditional public key cryptography in the certificate management . With a variety of scientific advances in the identity-based cryptographic techniques are more mature, until now various identity-based programs have been released . In identity-based authentication system , the user 's private key generated by the key distribution center unity , which caused its inherent security risks : key escrow problem . For a single key escrow problem caused by KGC proposed scheme using multiple authentication entities , this program can withstand KGC or KPA untrusted brought crisis, but if the KGC and KPA conspired user's private key security can not be guaranteed. To this end, the improvement program for each user to add a long-term private key factor selected by the user alone and preservation , and the KPA KGC can resist collusion attack . And because identity-based authentication system can only authenticate the user identity confidentiality can not be guaranteed expressly taken to combine the characteristics of the formation of identity-based authentication and encryption certified encryption scheme. Encrypted using a symmetric encryption algorithm , key information can be calculated using the communicating parties . Access control is an important direction for information security , primarily to restrict user access to system resources . For the current mainstream access control model - role-based access control, identity-based authentication combined with encryption system , the authentication encryption scheme to transform to apply to the access control model is proposed with identity authentication access control model , making this model can not only ensure the confidentiality of information transmitted users can also ensure that the user identity is authenticated . Based on the above characteristics have identity -based access control model that combines authentication and encryption schemes are implemented .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Confidentiality of communications and communications security > Theory
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