Results 21 to 30 of about 5,432,970 (135)
A SAT-based preimage analysis of reduced KECCAK hash functions [PDF]
, 2010 In this paper, we present a preimage attack on reduced versions of Keccak hash functions. We use our recently developed toolkit CryptLogVer for generating CNF (conjunctive normal form) which is passed to the SAT solver PrecoSAT.
Marian Srebrny, Pawel Morawiecki
core +1 more source
Power Analysis Attack on Hardware Implementation of MAC-Keccak on FPGAs [PDF]
, 2014 . Keccak is the hash function selected by NIST as the new SHA-3 standard. Keccak is built on Sponge construction and it provides a new MAC function called MAC-Keccak.
David R. Kaeli +5 more
core +2 more sources
Algebraic Attacks on Round-Reduced Keccak/Xoodoo [PDF]
, 2020 Since Keccak was selected as the SHA-3 standard, both its hash mode and keyed mode have attracted lots of third-party cryptanalysis. Especially in recent years, there is progress in analyzing the collision resistance and preimage resistance of round ...
Fukang Liu +3 more
core +1 more source
Design of the HW accelerator of the Keccak hash function. [PDF]
, 2020 Cílem této práce je návrh implementace Keccak algoritmu v FPGA a ověření jeho efektivity na SoC platformě. Pro tento účel jsme nastudovali teorii, která se týká SHA-3 hashovací funkce a Keccak algoritmu.
Nikita Litvishko
core
An Economic Analysis of Difficulty Adjustment Algorithms in Proof‐of‐Work Blockchain Systems
International Economic Review, Volume 67, Issue 1, Page 259-285, February 2026.ABSTRACT We study the stability of cryptocurrency systems through difficulty adjustment. Bitcoin's difficulty adjustment algorithm (DAA) exhibits instability when the reward elasticity of the hash rate is high, implying that a sharp price reduction could disrupt the current Bitcoin system.
Shunya Noda +2 more
wiley +1 more source
IET Information Security, Volume 2026, Issue 1, 2026.Contemporary distributed ledgers face an inherent trilemma when attempting to simultaneously optimize three critical properties: transaction throughput (measured in transactions per second [TPS]), network security, and node decentralization. Current decentralized storage platforms such as Filecoin encounter constraints in managing peak transaction ...
Saha Reno +3 more
wiley +1 more source
Algebraic Collision Attacks on Keccak [PDF]
, 2021 In this paper, we analyze the collision resistance of the two smallest versions of Keccak which have a width of 200 and 400 bits respectively. We show that algebraic and linearization techniques can serve collision cryptanalysis by using some interesting
Noûs, Camille +5 more
core +1 more source
, 2015 In this paper, we investigate Keccak --- the cryptographic hash function adopted as the SHA-3 standard. We propose a malicious variant of the function, where new round constants are introduced.
Pawel Morawiecki
core +1 more source
Design and Development of a Blockchain‐Enabled Decentralized Framework for Academic Microcredentials
IET Software, Volume 2026, Issue 1, 2026.Traditional higher education faces significant challenges, including rising costs, inflexibility, and a disconnect from workforce demands, while current credentialing systems are often centralized and vulnerable to fraud. Microcredentials have emerged as a solution, yet they lack integration into formal degree pathways and face issues with recognition ...
Abrar Mahbub Tanim +4 more
wiley +1 more source
Enhancing Security and Transparency in Satellite Data Transactions Using Ethereum‐Based Blockchain
The Journal of Engineering, Volume 2026, Issue 1, January/December 2026.This study presents an Ethereum‐based framework for securing satellite data transactions using ERC1155 tokenization, Proof of Authority consensus, and Threshold Cryptography. The system achieves low latency, high throughput, and significantly reduced gas costs while providing strong resistance against MITM, Sybil, and reentrancy attacks.
Saha Reno +3 more
wiley +1 more source