
FOLLOWUS
School of Computer, Qinghai Normal University, Xining 810008, China
School of Computer Science, Shaanxi Normal University, Xi'an 710062, China
State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100093, China
[ "Hui-fang YU, E-mail: yuhuifang@qhnu.edu.cn" ]
收稿:2016-02-25,
修回:2017-;7-14,
纸质出版:2017-07
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俞惠芳, 杨波. 低计算复杂度的无证书混合签密方案[J]. 信息与电子工程前沿(英文), 2017,18(7):928-940.
Hui-fang YU, Bo YANG. Low-computation certificateless hybrid signcryption scheme[J]. Frontiers of Information Technology & Electronic Engineering, 2017, 18(7): 928-940.
俞惠芳, 杨波. 低计算复杂度的无证书混合签密方案[J]. 信息与电子工程前沿(英文), 2017,18(7):928-940. DOI: 10.1631/FITEE.1601054.
Hui-fang YU, Bo YANG. Low-computation certificateless hybrid signcryption scheme[J]. Frontiers of Information Technology & Electronic Engineering, 2017, 18(7): 928-940. DOI: 10.1631/FITEE.1601054.
混合签密是一种可以签密任意长度消息的重要技术。本文将无证书混合签密技术应用于椭圆曲线密码系统,构造了一个低计算复杂度的无证书混合签密方案。随机预言模型下,该方案在ECCDH(elliptic-curve computation diffie-Hellman)被证明具有IND-CCA2(indistinguishability against adaptive chosen-ciphertext attacks)安全性,而且在ECDL(elliptic-curve discrete logarithm)假设下具有sUF-CMA(strong existential unforgeability against adaptive chosen-message attacks)安全性。分析表明该密码算法没有双线性对操作,比其他算法更高效。此外,它适合于资源受限的环境,比如无线传感器网络和ad hoc网络。
Hybrid signcryption is an important technique signcrypting bulk data using symmetric encryption. In this paper
we apply the technique of certificateless hybrid signcryption to an elliptic-curve cryptosystem
and construct a low-computation certificateless hybrid signcryption scheme. In the random oracle model
this scheme is proven to have indistinguishability against adaptive chosen-ciphertext attacks (IND-CCA2) under the elliptic-curve computation Diffie-Hellman assumption. Also
it has a strong existential unforgeability against adaptive chosen-message attacks (sUF-CMA) under the elliptic-curve discrete logarithm assumption. Analysis shows that the cryptographic algorithm does not rely on pairing operations and is much more efficient than other algorithms. In addition
it suits well to applications in environments where resources are constrained
such as wireless sensor networks and ad hoc networks.
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