Results 31 to 40 of about 51,869 (259)

Evaluating the Parameter Influence in the Event of a Ship Collision based on the Finite Element Method Approach

open access: yesInternational Journal of Technology, 2016
The main objective of this paper is to review and examine the effects of the selected collision parameter values on the characteristics of collision energy in several ship collision scenarios.
Aditya Rio Prabowo   +3 more
doaj   +1 more source

New hash function based on C-MD structure and chaotic neural network

open access: yes网络与信息安全学报, 2023
In recent years, widely used hash algorithms such as MD5 and SHA-1 have been found to have varying degrees of security risks.The iterative structure of the SHA-2 algorithm is similar to that of SHA-1, making it vulnerable to attacks as well.Meanwhile ...
Liquan CHEN   +4 more
doaj   +3 more sources

Nonlinear dynamic behaviors of outer shell and upper deck structures subjected to impact loading in maritime environment

open access: yesCurved and Layered Structures, 2019
Ship collision appears as the most threatening loading accounting for structural casualties and numbers of casualties after impact on the target ship.
Prabowo Aditya Rio, Sohn Jung Min
doaj   +1 more source

DESIGN OF TS GRADE GUIDING ANTI-COLLISION PAD BASED ON TOPOLOGY OPTIMIZATION (MT)

open access: yesJixie qiangdu, 2023
In order to solve the problem of single design method of the existing guided anti-collision pad, the guided anti-collision pad is designed to meet the requirements of the current regulations, and based on the collision-resistant topology optimization ...
SUN YuHao, LEI ZhengBao
doaj  

HMNT: Hash Function Based on New Mersenne Number Transform

open access: yesIEEE Access, 2020
In the field of information security, hash functions are considered important as they are used to ensure message integrity and authentication. Despite various available methods to design hash functions, the methods have been proven to time inefficient ...
Ali Maetouq, Salwani Mohd Daud
doaj   +1 more source

Algebraic Collision Attacks on Keccak

open access: yesIACR Transactions on Symmetric Cryptology, 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
Rachelle Heim Boissier   +2 more
doaj   +1 more source

Comparing two cryptographic hash algorithms: SHA-512 and whirlpool- a case study on file integrity monitoring [PDF]

open access: yesBIO Web of Conferences
SHA-512 and Whirlpool are two distinct hashing algorithms in the cryptography domain. Although they are different, these methods share some characteristics; such as both of them produce secure digests of the same size.
Al-Shareefi Farah, Al-Barmani Zahraa
doaj   +1 more source

Sufficient Conditions for Collision-Resistant Hashing [PDF]

open access: yes, 2005
We present several new constructions of collision-resistant hash-functions (CRHFs) from general assumptions. We start with a simple construction of CRHF from any homomorphic encryption. Then, we strengthen this result by presenting constructions of CRHF from two other primitives that are implied by homomorphic-encryption: one-round private information ...
Yuval Ishai   +2 more
openaire   +2 more sources

Design of a wideband and tunable radar absorber

open access: yesMaterials Research Express, 2023
To effectively address the challenges posed by intricate and dynamic electromagnetic environments, we propose a wideband and tunable radar absorber in this paper.
Xin Gao   +4 more
doaj   +1 more source

Stam’s Collision Resistance Conjecture [PDF]

open access: yes, 2010
At CRYPTO 2008 Stam [7] made the following conjecture: if an m+s-bit to s-bit compression function F makes r calls to a primitive f of n-bit input, then a collision for F can be obtained (with high probability) using r2(nr−m)/(r+1) queries to f. For example, a 2n-bit to n-bit compression function making two calls to a random function of n-bit input ...
openaire   +2 more sources

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