Results 51 to 60 of about 416,985 (179)

Token‐Guided Flow Tracing for Auditable Zero‐Knowledge Smart Contract Transfers

IET Information Security, Volume 2026, Issue 1, 2026.
Private transfers on public smart contract blockchains hide transaction values and private transfer links, but accountable privacy requires controlled auditability. Existing auditable zero‐knowledge transfer systems make per‐transaction audit information available to an authorized auditor, but their audit model may allow the auditor to inspect ...
Junhee Lee, Jihye Kim, Hyunok Oh, Heejin Park, Thomas Haines   +4 more
wiley   +1 more source

Provable security signcryption scheme based on RLWE without trapdoor

Tongxin xuebao, 2020
In view of the existing efficiency and security problems of lattice based signcryption,with the ABB16’s signature scheme ring-TESLA,a signcryption scheme without trapdoor named RLWE-SC was constructed,which achieved indistinguish ability against adaptive
Zhen LIU, Yiliang HAN, Xiaoyuan YANG, Shuguang LIU   +3 more
doaj   +2 more sources

Two‐Party Adaptor Signature: New Definition and Efficient Constructions From ECDSA

IET Information Security, Volume 2026, Issue 1, 2026.
Adaptor signature (AS) has gained increasing popularity lately due to its widespread adoption in different Blockchain applications such as atomic swaps and payment channels. Two‐party AS enhances the security of the signing key by splitting it into two parts. Erwig et al.
Binbin Tu, Xueli Wang, Yu Chen, Jun Shao
wiley   +1 more source

On stabilizers in finite permutation groups

Bulletin of the London Mathematical Society, Volume 58, Issue 1, January 2026.
Abstract Let G$G$ be a permutation group on the finite set Ω$\Omega$. We prove various results about partitions of Ω$\Omega$ whose stabilizers have good properties. In particular, in every solvable permutation group there is a set‐stabilizer whose orbits have length at most 6, which is best possible and answers two questions of Babai.
Luca Sabatini
wiley   +1 more source

Preimage and collision attacks on reduced Ascon using algebraic strategies

Cybersecurity
Ascon, a family of algorithms that supports hashing and authenticated encryption, is the winner of the NIST Lightweight Cryptography Project. In this paper, we propose an improved preimage attack against 2-round Ascon-XOF-64 with a complexity of $$2^{33}$
Qinggan Fu, Ye Luo, Qianqian Yang, Ling Song   +3 more
doaj   +1 more source

Practical Preimage Attack on 5-Round Keccak[r=640, c=160]

IACR Transactions on Symmetric Cryptology
Internal differential cryptanalysis has recently yielded a series of new results in the preimage cryptanalysis of round-reduced Keccak. While these existing attacks share a similar high-level framework, they differ in their technical details. This paper
Xiaoen Lin, Zhengrong Lu, Yantian Shen, Chongxu Ren, Hongbo Yu, Enming Dong, Wenhao Wu   +6 more
doaj   +1 more source

Clinical Judgment to Recognize Acute Brain Ischemia in the Emergency Department

Acta Neurologica Scandinavica, Volume 2026, Issue 1, 2026.
Background Despite the development of scale‐based stroke recognition tools, the accuracy of clinical judgment to detect acute ischemic stroke (AIS) and transient ischemic attack (TIA) is unknown. This study evaluated the real‐world accuracy of stroke physicians′ assessment in AIS/TIA detection before imaging compared with Recognition of Stroke in the ...
Max Bieder, Felix L. Nägele, Simon Kessner, Moritz A. Link, Thies Ingwersen, Märit Jensen, Lukas Meyer, Bastian Cheng, Götz Thomalla, Eckhard Schlemm, Ankit Dhoundiyal   +10 more
wiley   +1 more source

A Secure Cryptocurrency Scheme Based on Post-Quantum Blockchain

IEEE Access, 2018
Nowadays, blockchain has become one of the most cutting-edge technologies, which has been widely concerned and researched. However, the quantum computing attack seriously threatens the security of blockchain, and related research is still less. Targeting
Yu-Long Gao, Xiu-Bo Chen, Yu-Ling Chen, Ying Sun, Xin-Xin Niu, Yi-Xian Yang   +5 more
doaj   +1 more source

Eliminating Centralized Trust in VANETs: A Blockchain‐Assisted SSL‐PUF Authentication and Cross‐Domain Key Agreement Scheme

International Journal of Distributed Sensor Networks, Volume 2026, Issue 1, 2026.
Vehicular ad hoc networks (VANETs) enable secure vehicle‐to‐vehicle (V2V) and vehicle‐to‐infrastructure (V2I) communications but still rely heavily on centralized trusted authorities, creating scalability limitations, single‐point failures, and increased authentication latency.
Adi El-Dalahmeh, Jie Li, Mohammad Alia, Yanjiao Chen   +3 more
wiley   +1 more source

Partial pre-image attack on Proof-of-Work based blockchains

Blockchain: Research and Applications
Blockchain is a type of distributed ledger technology that consists of a growing list of records, called blocks, that are securely linked together using cryptography.
Hamza Baniata, Attila Kertesz
doaj   +1 more source