文章基本信息

标题：Key management with cryptography
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作者：Syed Minhaj Ali¹ ; Satish V Reve¹ ; Roohi Ali² 等
期刊名称：Oriental Journal of Computer Science and Technology
印刷版ISSN：0974-6471
出版年度：2010
卷号：3
期号：2
页码：299-304
出版社：Oriental Scientific Publishing Company
摘要：In this paper, we present an idea of adopting certificateless public key encryption (CL-PKE)schemes over mobile ad hoc network (MANET), which has not been explored before. In current literature,essentially there exists two main approaches, namely the public key cryptography and identity-based(ID-based)cryptography .Unfor tunately, they both have some inherent drawbacks. In the public keycryptography system, a certificate authority (CA) is required to issue certificates between users' publickeys and private key stoen sure their authenticity, whilst in an ID-based cryptography system, users'private keys are generated by a key generation center (KGC), which means the KGC knows everyusers' keys (the key escrow problem). To avoid these obstacles, Al-Riyami and Paterson proposedcertificateless cryptography systems where the public keys do not need to be cer tified and the KGCdoes not know users' keys. Essentially, certificateless cryptography relies between the public keycryptography and ID-based cryptography. In this work, we adopt this system's advantage over MANET.To implement CL-PKE over MANET and to make it practical ,we incorporate the idea of Shamir'ssecret sharing scheme. The master secret keys are shared among some or all the MANET nodes. Thismakes the system self-organized once the network has been initiated. In order to provide more flexibility,we consider both a full distribution system and a partial distribution system. Furthermore, we carry outtwo simulations to support our schemes. We firstly simulate our scheme to calculate our encryption,decryption and key distribution efficiency. Then we also simulate our scheme with AODV to test thenetwork efficiency. The simulations are performed over OPNET
关键词：certificateless cryptography; MANET; AODV; OPNET;public key cryptography; identity based cryptography; secret sharing