An Efficient Certificateless Aggregate Signature Scheme for Vehicular Ad-Hoc Networks
An Efficient Certificateless Aggregate Signature Scheme for Vehicular Ad-Hoc Networks
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DOI：
10.46298/dmtcs.2106
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发表时间：
2015-04
期刊：
影响因子：
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通讯作者：
A. Malhi;Shalini Batra
中科院分区：
文献类型：
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作者：
A. Malhi;Shalini Batra
最先进的电信技术已被广泛应用于交通相关信息的感知和收集。车载自组织网络(VANETs)是一种革新人类驾驶体验的新技术。数字签名方案是VANETs中实体间相互认证最有效、最广为人知的方式。无证书密码学是一种新的、有吸引力的范例，它消除了公钥密码学中证书的使用，解决了基于身份的密码学中的密钥托管问题。提出了一种新的无证书聚合签名方案，适用于具有恒定配对计算量的车载自组织网络。在假设Diffie-Hellman问题的计算难度的前提下，证明了该方案在随机预言模型下对自适应选择消息攻击是存在不可伪造的。
The state-of-the-art telecommunication technologies have widely been adapted for sensing the traffic related information and collection of it. Vehicular Ad-Hoc Networks (VANETs) have emerged as a novel technology for revolutionizing the driving experiences of human. The most effective and widely recognized way for mutual authentication among entities in VANETs is digital signature scheme. The new and attractive paradigm which eliminates the use of certificates in public key cryptography and solves the key escrow problem in identity based cryptography is certificateless cryptography. A new certificateless aggregate signature scheme is proposed in the paper for VANETs with constant pairing computations. Assuming the hardness of computational Diffie-Hellman Problem, the scheme is proved to be existentially unforgeable in the random oracle model against adaptive chosen-message attacks.