Results 41 to 50 of about 52,632 (234)

A Multi-User, Single-Authentication Protocol for Smart Grid Architectures [PDF]

open access: yes, 2020
open access articleIn a smart grid system, the utility server collects data from various smart grid devices. These data play an important role in the energy distribution and balancing between the energy providers and energy consumers. However, these data
Al-Bayatti, Ali Hilal   +2 more
core   +2 more sources

Data integrity and security of digital signatures on electronic systems using the digital signature algorithm (DSA)

open access: yesInternational Journal of Electronics and Communications System, 2021
The digital signature generation process begins with the creation of a public key and a private key. A public key is generated and published to verify the signature and calculate the hash value of the received document.
Asep Saepulrohman, Agus Ismangil
doaj   +1 more source

Secured Medical Image Hashing Based on Frequency Domain with Chaotic Map [PDF]

open access: yesEngineering and Technology Journal, 2021
Recently, online-medicine got increased global interest, particularly during COVID19 pandemic. Data protection is important in the medical field since when promoting telemedicine applications, it is necessary to protect the patient data and personal ...
Amira Jabbar   +2 more
doaj   +1 more source

Quantum attacks on Bitcoin, and how to protect against them [PDF]

open access: yes, 2017
The key cryptographic protocols used to secure the internet and financial transactions of today are all susceptible to attack by the development of a sufficiently large quantum computer.
Aggarwal, Divesh   +4 more
core   +3 more sources

Signcryption schemes with threshold unsigncryption, and applications [PDF]

open access: yes, 2014
The final publication is available at link.springer.comThe goal of a signcryption scheme is to achieve the same functionalities as encryption and signature together, but in a more efficient way than encrypting and signing separately. To increase security
Herranz Sotoca, Javier   +2 more
core   +2 more sources

Fast hash functions and convolution product

open access: yesJournal of Mathematical Cryptology, 2014
We propose a new simple and efficient family of hash functions based on matrix-vector multiplications with a competitive software implementation. The hash design combines a hard mathematical problem based on solving a system of linear equations with ...
Omar Sami, Sabri Houssem
doaj   +1 more source

A Large-Scale Secure Image Retrieval Method in Cloud Environment

open access: yesIEEE Access, 2019
With the rapid development of cloud computing technology, more and more users choose to outsource image data to clouds. To protect data's confidentiality, images need to be encrypted before being outsourced to clouds, but this brings difficulties to some
Yanyan Xu, Xiao Zhao, Jiaying Gong
doaj   +1 more source

Proofs of Security for the Unix Password Hashing Algorithm [PDF]

open access: yes, 2000
We give the first proof of security for the full Unix password hashing algorithm (rather than of a simplified variant). Our results show that it is very good at extracting almost all of the available strength from the underlying cryptographic primitive and provide good reason for confidence in the Unix construction.
David Wagner, Ian Goldberg
openaire   +2 more sources

Implementasi Sistem Otentikasi Dokumen Berbasis Quick Response (QR) Code dan Digital Signature

open access: yesJurnal RESTI (Rekayasa Sistem dan Teknologi Informasi), 2021
The authenticity and integrity of documents are essential in data exchange and communication. Digital documents must be verifiable for their authenticity and integrity by all parties that use the documents.
Antika Lorien, Theophilus Wellem
doaj   +1 more source

A Contribution to Secure the Routing Protocol "Greedy Perimeter Stateless Routing" Using a Symmetric Signature-Based AES and MD5 Hash

open access: yes, 2011
This work presents a contribution to secure the routing protocol GPSR (Greedy Perimeter Stateless Routing) for vehicular ad hoc networks, we examine the possible attacks against GPSR and security solutions proposed by different research teams working on ...
Erritali, Mohammed   +2 more
core   +1 more source

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