Results 11 to 20 of about 3,754 (180)
Construction and Analysis of SHA-256 Compression Function Based on Chaos S-Box
IEEE Access, 2021 To further improve the security of SHA-256, a compression function construction scheme based on chaotic S-box is proposed. Through the reasonable design of the iteration mode and using the nonlinearity, confusion, and anti-difference of chaotic S-box ...
Juan Wang, Ge Liu, Yongqi Chen, Shu Wang
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Double SHA-256 Hardware Architecture With Compact Message Expander for Bitcoin Mining
IEEE Access, 2020 In the Bitcoin network, computing double SHA-256 values consumes most of the network energy. Therefore, reducing the power consumption and increasing the processing rate for the double SHA256 algorithm is currently an important research trend.
Hoai Luan Pham +5 more
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Analysis of a SHA-256 Variant [PDF]
, 2006 SHA-256 is a cryptographic hash function which was proposed in 2000 as a new generation of SHA functions and was adopted as FIPS standard in 2002. In this paper we will consider a SHA-256 variant and a SHACAL-2 variant in which every arithmetic addition is replaced by XOR operation.
Hirotaka Yoshida, Alex Biryukov
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Security Analysis of SHA-256 and Sisters [PDF]
, 2004 This paper studies the security of SHA-256, SHA-384 and SHA-512 against collision attacks and provides some insight into the security properties of the basic building blocks of the structure. It is concluded that neither Chabaud and Joux’s attack, nor Dobbertin-style attacks apply.
Henri Gilbert, Helena Handschuh
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Science Journal of University of Zakho, 2023 The Internet of Things (IoT) as an important technology consists of a heterogeneous and huge number of devices that generates an enormous amount of data in various applications.
Arkan A. Saffer +2 more
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Analysis of Step-Reduced SHA-256 [PDF]
, 2006 This is the first article analyzing the security of SHA-256 against fast collision search which considers the recent attacks by Wang et al. We show the limits of applying techniques known so far to SHA-256. Next we introduce a new type of perturbation vector which circumvents the identified limits.
Florian Mendel +3 more
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Collisions for Step-Reduced SHA-256 [PDF]
, 2008 In this article we find collisions for step-reduced SHA-256. We develop a differential that holds with high probability if the message satisfies certain conditions. We solve the equations that arise from the conditions. Due to the carefully chosen differential and word differences, the message expansion of SHA-256 has little effect on spreading the ...
Ivica Nikolic, Alex Biryukov
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Custom ASIC Design for SHA-256 Using Open-Source Tools
Computers, 2023 The growth of digital communications has driven the development of numerous cryptographic methods for secure data transfer and storage. The SHA-256 algorithm is a cryptographic hash function widely used for validating data authenticity, identity, and ...
Lucas Daudt Franck +4 more
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Attacking Reduced Round SHA-256 [PDF]
, 2008 The SHA-256 hash function has started getting attention recently by the cryptanalysis community due to the various weaknesses found in its predecessors such as MD4, MD5, SHA-0 and SHA-1. We make two contributions in this work. First we describe message modification techniques and use them to obtain an algorithm to generate message pairs which collide ...
Somitra Kumar Sanadhya +1 more
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Implementasi Enkripsi Data MD5 dan SHA-256 pada Sistem Informasi Peminjaman Buku Tanah
Techno.Com, 2023 Setiap lapisan masyarakat harus memperhatikan keamanan sistem informasi untuk menghindari kejahatan dunia maya. Keadaan ini menimbulkan risiko yang harus dikelola untuk melindungi aset dari kejahatan dunia maya.
Hajra Rasmita Ngemba +3 more
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