Results 11 to 20 of about 168,612 (205)
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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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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Custom ASIC Design for SHA-256 Using Open-Source Tools [PDF]
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
doaj +2 more sources
SHA-256 Collision Attack with Programmatic SAT [PDF]
CoRRTo appear in the 2024 Proceedings of the International Workshop on Satisfiability Checking and Symbolic ...
Nahiyan Alamgir +2 more
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IoTThe rapid expansion of Internet of Things (IoT) devices has heightened the demand for lightweight and secure cryptographic mechanisms suitable for resource-constrained environments.
Iain Baird +4 more
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Second-Order Differential Collisions for Reduced SHA-256 [PDF]
, 2011 In this work, we introduce a new non-random property for hash/compression functions using the theory of higher order differentials. Based on this, we show a second-order differential collision for the compression function of SHA-256 reduced to 47 out of 64 steps with practical complexity. We have implemented the attack and provide an example.
Alex Biryukov +3 more
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Journal of King Saud University: Computer and Information Sciences, 2022 Provably secure keyless hash function uses Random Oracle (RO) or Sponge principles for the design and construction of security-centric hash algorithms. It capitalizes the aforesaid principles to produce outcomes like MD2, MD5, SHA-160, SHA-224/256, SHA ...
P. Karthik, P. Shanthi Bala
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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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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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Linear and Differential Cryptanalysis of SHA-256
Linear and Differential Cryptanalysis of SHA-256The one-way hash function plays an important role in digital signatures and message authentication from the viewpoint of security. No effective attacking method has been discovered to the algorithm of hash function standard. In this study, we tried to attack SHA-256 in encryption mode using linear and differential cryptanalysis to solve a private key ...
Wang, Xiao Dong, 石川, 洋文
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