Results 131 to 140 of about 701 (176)

Certificateless Signcryption in the Standard Model

Wireless Personal Communications, 2016
Signcryption can realize encryption and signature simultaneously with lower computational costs and communicational overheads than those of the traditional sign-then-encrypt approach. Certificateless cryptosystem solves the key escrow problem in the identity-based cryptosystem and simplifies the public key management in the traditional public key ...
Caixue Zhou, Guangyong Gao, Zongmin Cui
openaire   +2 more sources

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   +3 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   +2 more sources

A Certificateless Consortium Blockchain for IoTs

2020 IEEE 40th International Conference on Distributed Computing Systems (ICDCS), 2020
Blockchain is multi-centralized, immutable and traceable, thus is very suitable for distributed storage, privacy and security management in IoTs. However, most existing researches focus on the integration of public blockchain and IoTs. In fact, problems such as slow consensus, low transmission throughput, and completely open storage on the public ...
Xiaobing Guo, Qingxiao Guo, Min Liu 0001, Yunhao Wang, Yilong Ma, Bo Yang 0026   +5 more
openaire   +1 more source

A certificateless approach to onion routing

International Journal of Information Security, 2016
Onion routing protocols allow users to establish anonymous channels to preserve their privacy over a public network. Several protocols implementing this primitive have been proposed in recent years, and The onion routing network (Tor), a real-life implementation, provides an onion routing service to thousands of users over the Internet.
CATALANO, Dario, Fiore Dario, Gennaro Rosario   +2 more
openaire   +3 more sources

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   +2 more sources

Certificateless Concurrent Signature Scheme

2008 The 9th International Conference for Young Computer Scientists, 2008
Certificateless public key cryptography was introduced to remove the use of certificate to ensure the authentication of the user's public key in the traditional certificate-based public key cryptography and overcome he key escrow problem in the identity-based public key cryptography.
Zhenjie Huang, Xuanzhi Lin, Rufen Huang
openaire   +2 more sources

Generic Construction of Certificateless Encryption

2004
As the Internet becomes an indispensable element of modern life, PKC (Public Key Cryptography) is gaining a considerable attention because it can assure the security requirements of many applications. To guarantee the authenticity of public keys, traditional PKC requires certificates to be signed by a CA (Certification Authority).
Yum, DH, Lee, PJ
openaire   +3 more sources

An improved certificateless signcryption scheme

2016 13th International Iranian Society of Cryptology Conference on Information Security and Cryptology (ISCISC), 2016
A certtificateless signcryption (CLSC) scheme is an important primitive in cryptographic protocols which provides the goals of signing and encryption, simultaneously. In 2010, Liu et al presented the first certificateless signcryption scheme in the standard model, but their scheme is vulnerable against different attacks presented in the literature ...
Parvin Rastegari, Mehdi Berenjkoub
openaire   +2 more sources

Certificateless undeniable signature scheme

Information Sciences, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources