Results 21 to 30 of about 354,171 (267)

Linkable Democratic Group Signatures [PDF]

open access: yes, 2006
In a variety of group-oriented applications cryptographic primitives like group signatures or ring signatures are valuable methods to achieve anonymity of group members. However, in their classical form, these schemes cannot be deployed for applications that simultaneously require (i) to avoid centralized management authority like group manager and (ii)
Mark Manulis   +2 more
openaire   +3 more sources

Universally Composable Group Signature Protocol [PDF]

open access: yesJisuanji gongcheng, 2017
At present,most group signature is only secure in the standard alone.Its security becomes weak in multiple protocol environment.In view of this,the security of group signature protocol is studied in the multiple concurrent execution under the universally
ZHAO Chen,YU Huifang,LI Jianmin
doaj   +1 more source

AAAS: An Anonymous Authentication Scheme Based on Group Signature in VANETs

open access: yesIEEE Access, 2020
As special ad-hoc networks, vehicular ad-hoc networks (VANETs) support vehicles to communicate with each other via opportunistic wireless links. In order to protect privacy of drivers, vehicles registered in VANETs are required to authenticate and ...
Yanji Jiang, Shaocheng Ge, Xueli Shen
doaj   +1 more source

Privacy-Enhancing Group Signcryption Scheme

open access: yesIEEE Access, 2021
In the last decades, several signcryption schemes have been developed for different privacy-enhancing purposes. In this paper, we propose a new privacy-enhancing group signcryption scheme that provides: unforgeability, confidentiality, ciphertext and ...
Sara Ricci   +3 more
doaj   +1 more source

The Opening Capability for Security against Privacy Infringements in the Smart Grid Environment

open access: yesMathematics, 2018
It is now known that more information can be leaked into the smart grid environment than into the existing environment. In particular, specific information such as energy consumption data can be exposed via smart devices.
Sungwook Eom, Jun-Ho Huh
doaj   +1 more source

Group actions and higher signatures [PDF]

open access: yesProceedings of the National Academy of Sciences, 1985
Let π be a nontrivial finite group and M be a closed manifold. An interesting question is whether or not M has the R -homology type of a manifold admitting a free π action. Here this problem is studied for actions
openaire   +2 more sources

Unconditionally Secure Group Signatures

open access: yesIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2009
A group signature scheme introduced by Chaum and Van Heyst allows a group member to sign messages anonymously on behalf of the group. However, in the case of a dispute, the identity of a signer of a group signature can be revealed only by a privileged entity, called a group manager.
SEITO, Takenobu   +3 more
openaire   +1 more source

Efficient Revocation in Group Signatures [PDF]

open access: yes, 2001
We consider the problem of revocation of identity in group signatures. Group signatures are a very useful primitive in cryptography, allowing a member of a group to sign messages anonymously on behalf of the group. Such signatures must be anonymous and unlinkable, but a group authority must be able to open them in case of dispute.
Emmanuel Bresson, Jacques Stern
openaire   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Efficient Conditional Privacy-Preserving Authentication Scheme for Safety Warning System in Edge-Assisted Internet of Things

open access: yesMathematics, 2023
With the advent of smart cities, the significance of the Internet of Things (IoT) is gaining greater prominence. At the same time, the safety early warning system in the IoT has a significant impact on real-time monitoring and the response to potential ...
Jianfeng Li   +5 more
doaj   +1 more source

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