Secure partial secret key issuing in Certificateless Public Key Infrastructure


Mehrasa, Seyedehnegin and Ahmad, Nazrul Muhaimin and Yaacob, Asrul Hadi and Khorram, Alireza (2011) Secure partial secret key issuing in Certificateless Public Key Infrastructure. In: 2011 IEEE Student Conference on Research and Development (SCOReD). IEEE, 79 -84. ISBN 978-1-4673-0099-5

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Despite many advantages of Identity-based Public Key Cryptography (ID-PKC) in removing the certificates of public key over traditional Public Key Infrastructure (PKI), there are some problems related to key escrow property and the need for a secure channel to transmit the private key to the user. A Certificateless Public Key Cryptography (CL-PKC) retains the efficiency of ID-PKC while it solves the key escrow problem and does not need a certificate. The requirement of the infrastructure of the CL-PKC is to transmit the partial key to the user. Therefore, a partial key issuing mechanism is needed to deliver the partial key to the user through a secure channel. In this paper, a new algorithm for partial private key transmission is proposed which uses a simple blinding technique and user chosen secret value to eliminate secure channel problem. The proposed scheme is secure under the hardness assumption of Diffie-Hellman problem.

Item Type: Book Section
Subjects: T Technology > T Technology (General)
Divisions: Faculty of Information Science and Technology (FIST)
Depositing User: Ms Suzilawati Abu Samah
Date Deposited: 12 Feb 2014 03:08
Last Modified: 27 Apr 2015 07:54


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