Results 171 to 180 of about 13,790 (198)

Parameterizable FPGA Implementation of SHA-256 using Blockchain Concept

2019 International Conference on Communication and Signal Processing (ICCSP), 2019
This paper concentrates on the Design of Parameterizable Implementation of SHA-256 algorithm in FPGA imparting Blockchain Concepts. SHA-256 is the key principle utilized in Blockchain architecture to impart security and privacy into a system. This one way hash function generates unique output for a given input ensuring data authenticity and non ...
Devika K.N., Ramesh Bhakthavatchalu
openaire   +1 more source

Proposta de implementação do algoritmo SHA-256 em Hardware

Anais do XVIII Simpósio Brasileiro de Segurança da Informação e de Sistemas Computacionais (SBSeg 2018), 2018
Este trabalho propõe uma arquitetura desenvolvida em Field Programmable Gate Array (FPGA) para o algoritmo de hash SHA-256. O SHA-256 é bastante usado em protocolos para transporte de dados seguros ou verificação de integridade, como o HMAC, TLS e IPSec. A implementação proposta neste artigo traz uma abordagem diferenciada em relação a outros trabalhos
Carlos E. B. Santos Júnior, Marcelo A. C. Fernandes   +1 more
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Improving Local Collisions: New Attacks on Reduced SHA-256

2013
In this paper, we focus on the construction of semi-free-start collisions for SHA-256, and show how to turn them into collisions. We present a collision attack on 28 steps of the hash function with practical complexity. Using a two-block approach we are able to turn a semi-free-start collision into a collision for 31 steps with a complexity of at most ...
Florian Mendel, Tomislav Nad, Martin Schläffer   +2 more
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Comparative Study of Sha-256 Optimization Techniques

2022 IEEE World AI IoT Congress (AIIoT), 2022
Bharat S. Rawal, Lingampally Shiva Kumar, Sriram Maganti, Varun Godha   +3 more
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An optimized hardware implementation of SHA-256 round computation

The Computer Journal
Abstract The SHA-256 algorithm is one of the most widely used secure hashing algorithms. The SHA-256 algorithm is implemented in hardware, and in order to ensure the integrity and authenticity of the encrypted data, this requires higher throughput and efficiency.
Maoqun Yao, Ziwei Xue, Haiwei Li, Shanhu Shen   +3 more
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Algorithm for simplifying the SHA-256 operations tree

2023 IEEE International Conference on Cyber Security and Resilience (CSR), 2023
Andrey Plotnikov, Alla Levina
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Использование хеш-функции SHA-256 в криптовалютном алгоритме BITCOIN

2023
Криптографическая хеш-функция – это функция, реализующая алгоритм, выполняющий проверку целостности данных, защиту файлов, а также аутентификацию на основе использования математических преобразований, которые преобразовывают массив данных в состоящую из букв и символов строку фиксированной длины.
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Quantum Collision Attacks on Reduced SHA-256 and SHA-512

Lecture Notes in Computer Science, 2021
Akinori Hosoyamada
exaly  

Breaking Category Five SPHINCS$$^+$$ with SHA-256

2022
Ray Perlner, John Kelsey, David Cooper
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Blockchain Based Email Communication with SHA-256 Algorithm

2022
L. Sherin Beevi, R. Vijayalakshmi, P. Ilampiray, K. Hema Priya   +3 more
openaire   +1 more source