Results 141 to 150 of about 453 (176)

Certificateless strong key-insulated signature

International Conference on Information Science and Technology, 2011
To mitigate the damages of key-exposure, Dodis, Katz, Xu, and Yung [3], in Eurocrypt 2002, proposed a new paradigm called key-insulated security which provides tolerance against key exposures. Recently many identity-based key insulated signatures schemes have been proposed, however the problem of key escrow is inherent in this setting. To overcome this
null Zhongmei Wan, null Xuejia Lai, Jian Weng, null Jiguo Li   +3 more
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Secure mediated certificateless signature scheme

The Journal of China Universities of Posts and Telecommunications, 2007
Ju et al. proposed a certificateless signature scheme with instantaneous revocation by introducing security mediator (SEM) mechanism. This article presents a detailed cryptoanalysis of this scheme and shows that, in their proposed scheme, once a valid signature has been produced, the signer can recover his private key information and the instantaneous ...
Chen YANG, Wen-ping MA, Xin-mei WANG
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An Improved Certificateless Aggregate Signature

2014 IEEE International Conference on Computer and Information Technology, 2014
Recently, Hou et al. Proposed an improved certificate less aggregate signature (CLASS) scheme based on Xiong et al's scheme. They also demonstrated the scheme is provably secure in the random oracle model. Unfortunately, by giving concrete attacks, we point out that Hou et al.'s scheme is not secure in their security model. Then, we propose an improved
Jiang Deng, Chunxiang Xu, Huai Wu, Guangyuan Yang   +3 more
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Cryptanalysis and Improvement for Certificateless Aggregate Signature

Fundamenta Informaticae, 2018
In order to satisfy application in resource constrained environment, aggregate signature schemes have been widely investigated. Recently, He et al. pointed out that certificateless aggregate signature (CLAS) scheme proposed by Xiong et al. was insecure against the Type II adversary and presented an possible improvement.
Li, Jiguo, Yuan, Hong, Zhang, Yichen
openaire   +2 more sources

IKE authentication using certificateless signature

The International Conference on Information Networking 2011 (ICOIN2011), 2011
Aiming at the problems of implementing the conventional IKE authentications such as pre-shared key and certificate-based Public Key Infrastructure (PKI), this paper proposes a new certificateless IKE authentication scheme. This scheme uses bilinear pairing to structure the framework of certificateless IKE authentication, solves the end to end IPSec ...
Yaacob, Asrul H., Ahmad, Nazrul M., Fauzi, Ridza, Shikh, M. Shahir A. Majed   +3 more
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Certificateless aggregate signature schemes: A review

2016 International Conference on Computing, Communication and Automation (ICCCA), 2016
In the last decades security become a major issue due to increase technology. Among all the existing scheme certificateless aggregate schemes are very efficient techniques in recent scenario which is very helpful to provide security. Certificateless aggregate schemes are most attractive topic for researchers to give a lot of potential to secure our ...
Pankaj Kumar, Vishnu Sharma, Gaurav Sharma   +2 more
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A Certificateless Proxy Blind Signature Scheme

2009 WRI World Congress on Software Engineering, 2009
Most of the proxy blind schemes are based on the identity or on certificate. In this paper, a new certificateless proxy blind signature scheme is presented. This scheme firstly avoids the inherent escrow of identity-based cryptography and then doesn’t require certificates to guarantee the authenticity of public keys. This scheme fulfills the properties
Yu Meisheng, Wu Xiaojuan, Guan Jian, Yu Haixia   +3 more
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A forward certificateless ring signature scheme

2011 International Conference on Multimedia Technology, 2011
Certificateless public key cryptography reduces the difficult problem of key management in traditional public key cryptography, it also eliminates the key-escrow problem of identity-based cryptography and also preserves all of its advantages. A the lowest calculating time forward secure ring signature scheme is proposed, it can resist forgery attacks ...
null Xiangsheng Xia, null Fan Hong, null Guohua Cui   +2 more
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Efficient and Short Certificateless Signature

2008
A certificateless signature (CLS) scheme with short signature size is proposed in this paper. Our scheme is as efficient as BLS short signature scheme in both communication and computation, and therefore turns out to be more efficient than other CLS schemes proposed so far.
Tso, Raylin, Yi, Xun, Huang, Xinyi
openaire   +3 more sources

Novel Efficient Certificateless Aggregate Signatures

2009
We propose a new efficient certificateless aggregate signature scheme which has the advantages of both aggregate signatures and certificateless cryptography. The scheme is proven existentially unforgeable against adaptive chosen-message attacks under the standard computational Diffie-Hellman assumption.
Lei Zhang, Bo Qin, Qianhong Wu, Futai Zhang   +3 more
openaire   +1 more source