Results 121 to 130 of about 476 (169)

Certificateless Threshold Ring Signature

Information Sciences, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yi Mu, Shuang Chang, Duncan S Wong
exaly   +3 more sources

Hierarchical Certificateless Signatures

2010 IEEE/IFIP International Conference on Embedded and Ubiquitous Computing, 2010
Certificateless cryptography eliminates the key escrow problem in identity-based cryptography. Hierarchical cryptography exploits a practical security model to mirror the organizational hierarchy in the real world. In this paper, to incorporate the advantages of both types of cryptosystems, we instantiate hierarchical certificate less cryptography by ...
Lei Zhang 0009, Qianhong Wu, Josep Domingo-Ferrer, Bo Qin   +3 more
openaire   +1 more source

On constructing certificateless proxy signature from certificateless signature

Journal of Shanghai Jiaotong University (Science), 2008
In proxy signature schemes, an original signer A delegates its signing capability to a proxy signer B, in such a way that B can sign message on behalf of A. The recipient of the final message verifies at the same time that B computes the signature and that A has delegated its signing capability to B.
Zhong-mei Wan, Xue-jia Lai, Jian Weng, Xuan Hong, Yu Long, Wei-wei Jia   +5 more
openaire   +1 more source

Certificateless proxy multi-signature

Information Sciences, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hongzhen Du, Qiaoyan Wen
openaire   +2 more sources

Certificateless Partially Blind Signature

2012 26th International Conference on Advanced Information Networking and Applications Workshops, 2012
Blind signatures play a central role in applications such as e-cash and e-voting systems, while partially blind signature is an even more applicable variant. This paper proposes a Certificate less Partially Blind Signature (CPBS) by laying its construction on bilinear pairings over Gap Diffie-Hellman (GDH) Group for solving the key escrow problem in ...
Jingwei Liu, Zonghua Zhang, Rong Sun, Kyung Sup Kwak   +3 more
openaire   +1 more source

Certificateless group inside signature

Proceedings Autonomous Decentralized Systems, 2005. ISADS 2005., 2005
In distributed networks, the signer wants his signature to be verified by anyone in the same group with him and the recipient wants to verify the signature independently. Motivated by this consideration, a certificateless group inside signature is presented in this paper.
Chunbo Ma, FaLiang Ao, Dake He
openaire   +1 more source

Certificateless Aggregate Signature Scheme

2010 International Conference on E-Business and E-Government, 2010
This paper puts forward a secure construction of certificateless aggregate signature scheme using bilinear maps. The security of our scheme is based on the infeasibility of the Computational Diffie-Hellman problem and is formally proven in the strongest security model of certificateless aggregate signature schemes.
Hu Chen, Wangan Song, Bing Zhao
openaire   +1 more source

Certificateless Signature Revisited

2007
In this paper we revisit the security models of certificateless signatures and propose two new constructions which are provably secure in the random oracle model. We divide the potential adversaries according to their attack power, and for the first time, three new kinds of adversaries are introduced into certificateless signatures.
Xinyi Huang 0001, Yi Mu 0001, Willy Susilo, Duncan S. Wong, Wei Wu 0001   +4 more
openaire   +2 more sources

Certificateless signature and blind signature

Journal of Electronics (China), 2008
Certificateless public key cryptography is a new paradigm introduced by Al-Riyami and Paterson. It eliminates the need of the certificates in traditional public key cryptosystems and the key escrow problem in IDentity-based Public Key Cryptography (ID-PKC).
Lei Zhang, Futai Zhang
openaire   +1 more source

Certificateless multi-proxy signature

Computer Communications, 2011
Multi-proxy signature is a scheme that an original signer authorizes a proxy group as his proxy agent and later only the cooperation of all proxy signers in the proxy group could sign messages on behalf of the original signer. To our best knowledge, most of the existing multi-proxy signature schemes are proposed in public key infrastructure or identity-
Zhengping Jin, Qiaoyan Wen
openaire   +1 more source