Results 171 to 180 of about 1,011 (200)

Efficient Certificateless Signature Schemes

2007
Recently, in order to eliminate the use of certificates in certified public key cryptography and the key-escrow problem in identity based cryptography, the notion of certificateless public key cryptography was introduced. In this paper, to construct an efficient certificateless signature (CLS) scheme, we present a new approach compactly and ...
Kyu Young Choi, Jong Hwan Park, Jung Yeon Hwang, Dong Hoon Lee 0001   +3 more
openaire   +1 more source

An Efficient Certificateless Signature Scheme

2005
Traditional certificate based cryptosystem requires high maintenance cost for certificate management. Although, identity based cryptosystem reduces the overhead of certificate management, it suffers from the drawback of key escrow. Certificateless cryptosystem combines the advantages of both certificate based and identity based cryptosystems as it ...
M. Choudary Gorantla, Ashutosh Saxena
openaire   +1 more source

An efficient and provably‐secure certificateless signature scheme without bilinear pairings

International Journal of Communication Systems, 2012
Certificateless public key cryptography simplifies the complex certificate management in the traditional public key cryptography and resolves the key escrow problem in identitybased cryptography.
Debiao He
exaly   +1 more source

Certificateless Threshold Signature Schemes

2005
We analyze the relationship and subtle difference between the notion of certificateless public key cryptography (CL-PKC) and identity-based schemes without a trusted private key generator (PKG), then propose a certificateless threshold signature scheme based on bilinear pairings.
Lichen Wang, Zhenfu Cao, Xiangxue Li, Haifeng Qian   +3 more
openaire   +1 more source

Strongly secure certificateless short signatures

Journal of Systems and Software, 2012
Highlights? We introduce a new efficient and secure short certificateless signature scheme. ? It is strongly unforgeable. ? The security is based on the CDH assumption. ? The proposed scheme is provably secure against a relatively stronger adversary. Short certificateless signatures have come into limelight in recent years.
Raylin Tso, Xinyi Huang 0001, Willy Susilo   +2 more
openaire   +2 more sources

Certificateless Designated Verifier Signature Schemes

20th International Conference on Advanced Information Networking and Applications - Volume 1 (AINA'06), 2006
Designated verifier signature schemes allow a signer to convince a designated verifier, in such a way that only the designated verifier will believe with the authenticity of such a signature. The previous constructions of designated verifier signature rely on the underlying Public Key Infrastructure, that requires both signer and verifier to verify the
Xinyi Huang 0001, Willy Susilo, Yi Mu 0001, Futai Zhang   +3 more
openaire   +1 more source

Practical certificateless short signature scheme

International Journal of Electronic Security and Digital Forensics, 2014
Certificateless cryptography is an attractive paradigm for public key cryptography since it does not require certificates in traditional public key cryptography and also solves the inherent key escrow problem in identity-based cryptography. Currently, certificateless short signature is receiving significant attention from the public key cryptography ...
Miaomiao Tian 0001, Liusheng Huang, Wei Yang 0011   +2 more
openaire   +1 more source

On the Security of a Certificateless Aggregate Signature Scheme

IEEE Communications Letters, 2011
Certificateless cryptography eliminates the need of certificates in public key cryptosystems and solves the inherent key escrow problem in identity-based cryptosystems. An aggregate signature scheme is a signature scheme which allows to aggregate n signatures on n distinct messages from n distinct users into a single signature.
openaire   +1 more source

The insecurity of a certificateless undeniable signature scheme

2016 International Wireless Communications and Mobile Computing Conference (IWCMC), 2016
Duan proposed the first certificateless undeniable signature scheme in 2008. Later in 2012, Zhao and Ye proffered an efficient scheme which enjoys from a pairing-free sign algorithm. In this paper, we prove the insecurity of their efficient scheme by mounting two attacks on its invisibility and non-impersonation.
Rouzbeh Behnia, Swee-Huay Heng
openaire   +2 more sources

Batch Verification for Certificateless Signature Schemes

2009 International Conference on Computational Intelligence and Security, 2009
Batch verification is a practical and significant technique which is very useful for greatly reducing the computational cost of verifying many signatures simultaneously. This technique is very attractive for authentications in computation-limited applications such as sensor network and banking service.
Manman Geng, Futai Zhang
openaire   +1 more source