Results 21 to 30 of about 37,099 (235)
SHA-2 Acceleration Meeting the Needs of Emerging Applications: A Comparative Survey [PDF]
IEEE Access, 2020 While SHA-2 is a ubiquitous cryptographic hashing primitive, its role in emerging application domains, e.g. blockchains or trusted IoT components, has made the acceleration of SHA-2 very challenging due to new stringent classes of requirements, especially implementation cost and energy efficiency.
Raffaele Martino, Alessandro Cilardo
openaire +5 more sources
A new hash family obtained by modifying the SHA-2 family [PDF]
Proceedings of the 4th International Symposium on Information, Computer, and Communications Security, 2009 In this work, we study several properties of the SHA-2 design which have been utilized in recent collision attacks against reduced round SHA-2. Small modifications to the SHA-2 design are suggested to thwart these attacks. The modified round function provides the same resistance to linearization attacks as the original SHA-2 round function, but ...
Somitra Kumar Sanadhya +1 more
openaire +2 more sources
Preimage Attacks on Reduced Tiger and SHA-2 [PDF]
, 2009 This paper shows new preimage attacks on reduced Tiger and SHA-2. Indesteege and Preneel presented a preimage attack on Tiger reduced to 13 rounds (out of 24) with a complexity of 2128.5. Our new preimage attack finds a one-block preimage of Tiger reduced to 16 rounds with a complexity of 2161. The proposed attack is based on meet-in-the-middle attacks.
Takanori Isobe 0001, Kyoji Shibutani
openaire +1 more source
Efficient computation of hashes [PDF]
, 2014 The sequential computation of hashes at the core of many distributed storage systems and found, for example, in grid services can hinder efficiency in service quality and even pose security challenges that can only be addressed by the use of parallel ...
+16 more
core +3 more sources
CoRR, 2008 In this note, we provide the first 22-step collisions for SHA-256 and SHA-512. Detailed technique of generating these collisions will be provided in the next revision of this note.
Somitra Kumar Sanadhya +1 more
openaire +2 more sources
Learning-based ship design optimization approach [PDF]
, 2012 With the development of computer applications in ship design, optimization, as a powerful approach, has been widely used in the design and analysis process.
Cui, Hao, Sayer, Philip, Turan, Osman
core +1 more source
A Flexible Framework for Exploring, Evaluating, and Comparing SHA-2 Designs [PDF]
IEEE Access, 2019 Hash functions are a crucial tool in a large variety of applications, ranging from security protocols to cryptocurrencies down to the Internet-of-Things devices used, for example, as biomedical appliances. In particular, SHA-2 is today a ubiquitous hashing primitive.
Raffaele Martino, Alessandro Cilardo
openaire +4 more sources
Grayscale Image Authentication using Neural Hashing
, 2016 Many different approaches for neural network based hash functions have been proposed. Statistical analysis must correlate security of them. This paper proposes novel neural hashing approach for gray scale image authentication.
Kutlu, Yakup, Yayık, Apdullah
core +2 more sources
A Two‐Stage Questionnaire and Actigraphy Screening for iRBD in a Multicenter Retrospective Cohort
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Isolated rapid‐eye‐movement sleep behavior disorder is a prodromal marker of synucleinopathies. However, most cases remain undiagnosed due to the insufficient predictive value of questionnaires and limited access to confirmatory video‐polysomnography. We assessed a two‐stage screening strategy combining a brief questionnaire on rapid‐
Caleb A. Massimi +17 more
wiley +1 more source
The Brauer-Manin Obstruction and Sha[2]. [PDF]
, 2007 We discuss the Brauer-Manin obstruction on del Pezzo surfaces of degree 4. We outline a detailed algorithm for computing the obstruction and provide associated programs in magma.
Bright, M.J. +3 more
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