Results 101 to 110 of about 208 (142)

Anonymous signcryption in ring signature scheme over elliptic curve cryptosystem

, 2011
Chung, Y. F.; Wu, Z. Y.; Lai, F. P.; Chen, T. S.
core  

A new identity-based ring signcryption scheme

International Journal of Electronic Security and Digital Forensics, 2014
This paper presents a new identity-based ring signcryption scheme. With this technique, anyone can choose n − 1 entities to generate a verifiable ring signcryption on behalf of the group of n members, yet the actual signcrypter remain anonymous. The scheme is proven to be indistinguishable against adaptive chosen ciphertext attacks, existentially ...
Lunzhi Deng, Jiwen Zeng, Siwei Li
exaly   +4 more sources

Cryptanalysis of Two Ring Signcryption Schemes

Lecture Notes in Computer Science, 2009
Ring signcryption scheme is an important cryptographic primitive that can be used to protect privacy and authenticity of a collection of users who are connected through an ad-hoc network, such as Bluetooth.In this paper,we analyze two ring signcryption schemes:Wang-Zhang-Ma's scheme (2007) and Zhu-Zhang-Wang's scheme (2008).
Huaqun Wang, Yu Hong
exaly   +3 more sources

A Provably Secure Parallel Certificatelesss Ring Signcryption Scheme

2010 International Conference on Multimedia Information Networking and Security, 2010
Ring signcryption is a cryptographic primitivewhich combines the functions of a ring signature scheme andan encryption scheme. It can provide confidentiality, anonymityand authenticity simultaneously. In this paper, we show asecurity flaw in a previous certificateless ring signcryptionscheme (Wang et al.’s scheme) and propose an efficient parallelring ...
Lijun Zhu, Futai Zhang, Songqin Miao
exaly   +3 more sources

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Certificateless anti-quantum ring signcryption for network coding

Knowledge-Based Systems, 2022
Abstract Network coding is a kind of information interaction technology which combines the routing with coding, and it can improve the system robustness and save the wireless network resources. However, the traditional ring signcryption is not suitable for network coding and quantum computing settings.
Huifang Yu
exaly   +2 more sources

Certificateless ring signcryption for multi-source network coding

Computer Standards and Interfaces, 2022
Abstract Network coding can make the intermediate nodes encode the messages, and it has the merits of large network throughput, high resource utilization rate and strong system robustness. Traditional certificateless ring signcryption cannot be used in the network coding environment, so we construct one certificateless ring signcryption for multi ...
Huifang Yu
exaly   +2 more sources

On the Security of Identity Based Ring Signcryption Schemes [PDF]

, 2009
Signcryption is a cryptographic primitive which offers authentication and confidentiality simultaneously with a cost lower than signing and encrypting the message independently. Ring signcryption enables a user to signcrypt a message along with the identities of a set of potential senders (that includes him) without revealing which user in the set has ...
S. Sharmila Deva Selvi, S. Sree Vivek, C. Pandu Rangan   +2 more
core   +4 more sources

An Improved Identity-Based Ring Signcryption Scheme

Information Security Journal, 2013
In this paper, we show that the identity-based ring signcryption scheme suggested by Zhu, Zhang, and Wang 2009 does not reach the security as they claimed it does. To make up for this defect, we propose a rescue scheme and prove the revised scheme is secure under the random oracle model.
Lunzhi Deng, Chenglian Liu
exaly   +2 more sources

Ring signature scheme for ECC-based anonymous signcryption

Computer Standards and Interfaces, 2009
This study presents an elliptic curve cryptosystem-based signcryption scheme with anonymity features. The scheme possesses the properties of elliptic curve cryptosystem and ring signature. While the technique of ring signature endows the signers with anonymity, the elliptic curve cryptosystem provides advantages like high security, low computation load,
Tzer-Shyong Chen
exaly   +2 more sources

Identity-based threshold ring signcryption from pairing

International Journal of Electronic Security and Digital Forensics, 2014
This paper presents an identity-based threshold ring signcryption scheme. With this technique, any group of t entities can choose n - t entities to generate a t-out-of-n signcryption on behalf of the group of n members, yet the actual signcrypters remain anonymous. The scheme is proven to be indistinguishable against adaptive chosen ciphertext attacks,
Lunzhi Deng, Siwei Li
exaly   +2 more sources