Results 61 to 70 of about 11,450 (279)

Provably Secure Covert Communication on Blockchain

Cryptography, 2018
Blockchain is a public open ledger that provides data integrity in a distributed manner. It is the underlying technology of cryptocurrencies and an increasing number of related applications, such as smart contracts. The open nature of blockchain together
Juha Partala
doaj   +1 more source

Nonlinear permuted Granger causality

Canadian Journal of Statistics, EarlyView.
Abstract Granger causality is an established, contentious method that seeks causal temporal connections via association and precedence. While not true causal inference, it assists in mapping networks of information flow that may warrant further study.
Noah D. Gade, Jordan Rodu
wiley   +1 more source

Revisiting TESLA in the quantum random oracle model [PDF]

, 2017
We study a scheme of Bai and Galbraith (CT-RSA'14), also known as TESLA. TESLA was thought to have a tight security reduction from the learning with errors problem (LWE) in the random oracle model (ROM). Moreover, a variant using chameleon hash functions
Gutoski, Gus, Edward Eaton, Özgür Dagdelen, Dagdelen, Özgür, Alkim, Erdem, Juliane Krämer, Krämer, Juliane, Erdem Alkim, Johannes Buchmann, Filip Pawlega, Pawlega, Filip, Eaton, Edward, Gus Gutoski, Bindel, Nina, Buchmann, Johannes, Nina Bindel   +15 more
core   +1 more source

A Review of Grain Boundaries: Formation Mechanism, Synthesis Strategy, and Application in Electrocatalysis

EcoEnergy, EarlyView.
An overview of grain boundary engineering in the field of electrocatalysis. ABSTRACT Key electrocatalytic reactions such as HER, OER, ORR, CO2RR, and NRR offer promising routes for storing renewable energy as chemical fuels. However, their widespread application is constrained due to the lack of highly active and stable catalysts. Grain boundaries (GBs)
Jingyu Gao, Fengming Zhou, Xinying Li, Ying Deng, Zexing Wu, Siyuan Feng, Yujing Zhu, Dan Zhang, Zhenyu Xiao   +8 more
wiley   +1 more source

Improved Scheme for Data Aggregation of Distributed Oracle for Intelligent Internet of Things

Sensors
Oracle is a data supply mechanism that provides real-world data for blockchain. It serves as a bridge between blockchain and the IoT world, playing a crucial role in solving problems such as data sharing and device management in the IoT field.
Ruiyang Gao, Yongtao Xue, Wei Wang, Yin Lu, Guan Gui, Shimin Xu   +5 more
doaj   +1 more source

Revocable Certificateless Public Key Encryption With Outsourced Semi-Trusted Cloud Revocation Agent

IEEE Access, 2020
Certificateless public key cryptography (CL-PKC) not only eliminates the need for certificates in traditional certificate-based PKC but also solves the inherent key escrow problem in identity-based PKC.
Mingxin Ma, Guozhen Shi, Xinyi Shi, Mang Su, Fenghua Li   +4 more
doaj   +1 more source

Environmental and local habitat variables as predictors of trophic interactions in subtidal rocky reefs along the SE Pacific coast

Ecography, EarlyView.
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns.
Catalina A. Musrri, Alistair G. B. Poore, Oscar Pino, Nicolás Riquelme, Wolfgang B. Stotz, Fadia Tala, Martin Thiel   +6 more
wiley   +1 more source

A Short Linearly Homomorphic Proxy Signature Scheme

IEEE Access, 2018
Linearly homomorphic signature schemes allow the performance of linear computations on authenticated data. They are important primitives for many applications, such as electronic voting, smart grids, electronic health records, and so on.
Qun Lin, Jin Li, Zhengan Huang, Wenbin Chen, Jian Shen   +4 more
doaj   +1 more source

A Privacy-Preserving Efficient Location-Sharing Scheme for Mobile Online Social Network Applications

IEEE Access, 2020
The rapid development of mobile internet technology and the better availability of GPS have made mobile online social networks (mOSNs) more popular than traditional online social networks (OSNs) over the last few years.
Munmun Bhattacharya, Sandip Roy, Kamlesh Mistry, Hubert P. H. Shum, Samiran Chattopadhyay   +4 more
doaj   +1 more source

On Pseudo-Random Oracles [PDF]

Tatra Mountains Mathematical Publications, 2012
ABSTRACT Many cryptographic systems which involve hash functions have proof of their security in a so called random oracle model. Behavior of hash functions used in such cryptographic systems should be as close as possible to the behavior of a random function. There are several properties of hash functions dealing with a random behavior.
openaire   +1 more source