Results 31 to 40 of about 12,741,900 (205)
Soft Analytical Side-Channel Attacks on SHA-2 and HMAC
Transactions on Cryptographic Hardware and Embedded SystemsWe investigate the use of bit-level Soft Analytical Side-Channel Attacks (SASCA) to recover secret inputs of the SHA-256 hash function, and secret keys of HMAC-SHA-256, using Sentential Decision Diagrams to overcome the computational challenge posed to ...
Maxime Lecomte +4 more
doaj +1 more source
Hybrid Chaotic-Based PRNG for Secure Cryptography Applications
Applied Sciences, 2023 This paper suggests a novel one-dimensional (1D) map to address the limitations of traditional chaotic 1D maps. In contrast to traditional 1D maps, the proposed map has three control parameters a, μ, and c, allowing it to exhibit chaotic behavior over a ...
Abdullah M. Alnajim +4 more
doaj +1 more source
Collisions and other Non-Random Properties for Step-Reduced SHA-256 [PDF]
, 2008 We study the security of step-reduced but otherwise unmodified SHA-256. We show the first collision attacks on SHA-256 reduced to 23 and 24 steps with complexities $2^{18}$ and $2^{28.5}$, respectively. We give example colliding message pairs for 23-step
Florian Mendel +3 more
core +3 more sources
T‐depth reduction method for efficient SHA‐256 quantum circuit construction
IET Information Security, 2023 To perform a quantum brute force attack on a cryptosystem based on Grover's algorithm, it is necessary to implement a quantum circuit of the cryptographic algorithm.
Jongheon Lee +3 more
doaj +1 more source
Detection of malware in downloaded files using various machine learning models
Egyptian Informatics Journal, 2023 Malware has become an enormous risk in today’s world. There are different kinds of malware or malicious programs found on the internet. Research shows that malware has grown exponentially over the last decade, causing substantial financial losses to ...
Akshit Kamboj +3 more
doaj +1 more source
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
openaire +2 more sources
On the exploitation of a high-throughput SHA-256 FPGA design for HMAC [PDF]
ACM Transactions on Reconfigurable Technology and Systems, 2012 High-throughput and area-efficient designs of hash functions and corresponding mechanisms for Message Authentication Codes (MACs) are in high demand due to new security protocols that have arisen and call for security services in every transmitted data packet. For instance, IPv6 incorporates the IPSec protocol for secure data transmission. However, the
Harris E. Michail +4 more
openaire +3 more sources
Objectives and Key Results–Driven Multiagent Framework for Mechanical Design and Simulation
Advanced Intelligent Systems, EarlyView.Objectives and key results (OKR)‐agent, an OKR‐driven multiagent framework, turns a plain‐language engineering goal into completed mechanical simulations. Three peer agents—supervisor, modeler, and simulator—share a compact board of OKR and coordinate external molecular dynamics (MD) and finite‐element solvers through a standardized tool interface. The
Jie Tian +10 more
wiley +1 more source
Analysis of Step-Reduced SHA-256 [PDF]
, 2008 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.
Florian Mendel +3 more
core +1 more source
Analysis of the cryptographic strength of the SHA-256 hash function using the SAT approach
Научно-технический вестник информационных технологий, механики и оптикиCryptographic hash functions play a significant role in modern information security systems by ensuring data integrity and enabling efficient data compression. One of the most important and widely used cryptographic hash functions is SHA-256 that belongs
V. V. Davydov +3 more
doaj +1 more source