Results 51 to 60 of about 1,005 (175)
Applied Computational Intelligence and Soft Computing, Volume 2026, Issue 1, 2026.This paper proposes a novel blockchain‐based system designed to revolutionize transparency, traceability, and reliability within the organic food supply chain. Addressing persistent challenges such as certification fraud, opaque supply chains, and the high costs associated with organic food production, stakeholders including farmers, processors ...
Youness Riouali +2 more
wiley +1 more source
Cryptanalysis of Round-Reduced KECCAK using Non-Linear Structures [PDF]
, 2019 In this paper, we present new preimage attacks on KECCAK-384 and KECCAK-512 for 2, 3 and 4 rounds. The attacks are based on non-linear structures (structures that contain quadratic terms). These structures were studied by Guo et al. and Li et al. to give
Mahesh Sreekumar Rajasree
core +2 more sources
IACR Transactions on Symmetric Cryptology, 2018 We present column parity mixers (CPM), a generalization of the Θ mixing layer that is used in Keccak. Thanks to our description using matrix arithmetic, we can easily derive algebraic, diffusion, and mask propagation properties, leading to a surprising ...
Ko Stoffelen, Joan Daemen
doaj +1 more source
Towards quantum‐safe blockchain: Exploration of PQC and public‐key recovery on embedded systems
IET Blockchain, Volume 5, Issue 1, January/December 2025.This paper addresses the need for quantum‐safe blockchain solutions specifically for embedded systems by integrating Post‐Quantum Cryptography (PQC) into blockchain frameworks. We propose a quantum‐secure blockchain architecture using NIST‐standardized PQC algorithms, finding Falcon‐512 to be optimal for embedded environments due to its security and ...
Dominik Marchsreiter
wiley +1 more source
Optimization of preimage resistance on SHA-3 algorithm(SHA-3算法的抗原象攻击性能优化)
Zhejiang Daxue xuebao. Lixue ban, 2016 通过对SHA-3算法置换函数Keccak-f的线性性质以及缩减轮数的Keccak杂凑函数原象攻击的研究，提出了 SHA-3算法的抗原象攻击性能优化设计方案.首先结合Keccak杂凑函数的差分特点和θ置换函数的奇偶性质，分析了基于CP-kernel的SHA-3算法原象攻击；然后针对目前实施原象攻击的方法，在θ置换函数运算后异或随机数以打乱其汉明重量，改变CP-kernel的校验性质，阻止攻击者利用中间相遇的方法寻找原象，提高了 SHA-3 算法的抗原象攻击能力；最后利用VHDL硬件语言实现抗原象攻击SHA-
LIJianrui(李建瑞) +2 more
doaj +1 more source
Finding Collisions against 4-Round SHA-3-384 in Practical Time
IACR Transactions on Symmetric Cryptology, 2022 The Keccak sponge function family, designed by Bertoni et al. in 2007, was selected by the U.S. National Institute of Standards and Technology (NIST) in 2012 as the next generation of Secure Hash Algorithm (SHA-3).
Senyang Huang +3 more
doaj +1 more source
Differential-Aided Preimage Attacks On Round-Reduced Keccak
The Computer Journal, 2022 Abstract At FSE 2008, Leurent introduced the preimage attack on MD4 by exploiting differential trails. In this paper, we apply the differential-aided preimage attack to Keccak with the message modification techniques. Instead of directly finding the preimage, we exploit differential characteristics to modify the messages, so that the ...
Congming Wei +4 more
openaire +1 more source
EthVault: A Secure and Resource‐Conscious FPGA‐Based Ethereum Cold Wallet
IET Blockchain, Volume 5, Issue 1, January/December 2025.This work presents EthVault, the first hardware‐based Ethereum hierarchical deterministic cold wallet, featuring FPGA implementations of key cryptographic algorithms for secure key generation. A novel ECC architecture resilient to side‐channel and timing attacks, along with an efficient child key derivation function, are introduced. Implementation on a
Joel Poncha Lemayian +3 more
wiley +1 more source
A Fast Search Method for 3‐Share Second‐Order Masking Schemes for Lightweight S‐Boxes
IET Information Security, Volume 2025, Issue 1, 2025.Masking schemes are widely adopted strategies for countering side‐channel analysis (SCA) attacks. The initial hardware masking strategy, threshold implementation (TI), provides robust security against glitches in hardware platforms. The minimum number of shares required for a TI scheme depends not only on the desired security order but also on the ...
Yanhong Fan +4 more
wiley +1 more source
Rhythmic Keccak: SCA Security and Low Latency in HW
Transactions on Cryptographic Hardware and Embedded Systems, 2018 Glitches entail a great issue when securing a cryptographic implementation in hardware. Several masking schemes have been proposed in the literature that provide security even in the presence of glitches.
Victor Arribas +4 more
doaj +1 more source