Results 71 to 80 of about 718 (171)

Lattice-based verifiably encrypted group signatures

open access: yesCybersecurity
Verifiably encrypted signature (VES) schemes are extensively utilized in fair exchange which combine the features of encryption and signature, aiming to provide a solution that can not only verify the validity of signatures but also safeguard the privacy
Peidong Guan, Shuai Wang
doaj   +1 more source

Communicating Unforgiveness: How Do Victims Communicate Their Unforgiveness to Their Offenders?

open access: yes
When faced with interpersonal transgressions, some victims maintain unforgiveness towards their offenders. Researchers have identified emotions and cognitions experienced by victims who maintain unforgiveness, but the literature has yet to move beyond investigating the intrapersonal experience of unforgiveness.
openaire   +1 more source

Unforgeability of Blind Schnorr in the Limited Concurrency Setting

open access: yesIACR Communications in Cryptology
Blind signature schemes enable a user to obtain a digital signature on a message from a signer without revealing the message itself. Among the most fundamental examples of such a scheme is blind Schnorr, but recent results show that it does not satisfy the standard notion of security against malicious users, One-More Unforgeability (OMUF), as it is ...
Franklin Harding, Jiayu Xu 0001
openaire   +2 more sources

Attribute-based alterable threshold ring signature scheme with conspiracy attack immunity

open access: yesTongxin xuebao, 2015
Attribute-based cryptography is a generalization and development of the identity-based cryptography,which extends the identity to a set of attributes.In the attribute-based cryptosystem,different members with the same attributes can form a signature ring
Zhen CHEN, Wen-fang ZHANG, Xiao-min WANG
doaj   +2 more sources

On the unforgeability of the Chaum - Pedersen blind signature scheme

open access: yesPrikladnaya Diskretnaya Matematika
The paper is devoted to the analysis of the unforgeability property of the Chaum - Pedersen blind signature scheme in case an adversary is able to initiate parallel sessions of the signature generation protocol. It is shown that the scheme does not ensure strong unforgeability, i.e., it allows to create the forgeries for “old” messages that were ...
Akhmetzyanova, L. R., Babueva, A. A.
openaire   +1 more source

Unforgeable Watermarks for Language Models via Robust Signatures

open access: yesCoRR
Language models now routinely produce text that is difficult to distinguish from human writing, raising the need for robust tools to verify content provenance. Watermarking has emerged as a promising countermeasure, with existing work largely focused on model quality preservation and robust detection. However, current schemes provide limited protection
Huijia Lin   +2 more
openaire   +3 more sources

Lattice-based verifiable timed signature and application

open access: yesTongxin xuebao
Aiming at the problem that current verifiable timed signature (VTS) schemes cannot effectively resist the threat of quantum computing attacks, a lattice-based verifiable timed signature (LVTS) scheme was proposed, founded on challenging problems over ...
CHEN Huiyan   +4 more
doaj  

Provably unforgeable signatures

open access: yes, 1992
Summary: Digital signatures are one of the more useful applications of cryptography. There are many different signature schemes with varying degrees of security and efficiency. The scheme that has security in the strongest sense (signatures cannot be obtained for a given message, even if other signatures of the forger's choice are available), is rather
openaire   +2 more sources

Scheme on user identity attribute preserving based on ring signcryption for cloud computing

open access: yesTongxin xuebao, 2014
Identity attribute leak as the most severe security threat of cloud computing,in order to solve this problem,a protection scheme of identity attributes based on ring signcryption was proposed.Focused on digital identity management in cloud service,which ...
Shuan-bao LI   +5 more
doaj  

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