منابع مشابه
How Fast Can Higher-Order Masking Be in Software?
It is widely accepted that higher-order masking is a sound countermeasure to protect implementations of block ciphers against side-channel attacks. The main issue while designing such a countermeasure is to deal with the nonlinear parts of the cipher i.e. the so-called s-boxes. The prevailing approach to tackle this issue consists in applying the Ishai-Sahai-Wagner (ISW) scheme from CRYPTO 2003...
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Abstract. In this paper we give a specification of a new block cipher that can be called the Courtois Toy Cipher (CTC). It is quite simple, and yet very much like any other known block cipher. If the parameters are large enough, it should evidently be secure against all known attack methods.However, we are not proposing a new method for encrypting sensitive data, but rather a research tool that...
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BACKGROUND How the initial infusion rate of glucose solution should be set to avoid hyperglycemia in the perioperative setting is unclear. METHODS Computer simulations were performed based on data from seven studies where the kinetics of glucose was calculated using a one-compartment model. Glucose had been infused intravenously on 44 occasions to volunteers and on 256 occasions to surgical p...
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Time- and angle-resolved extreme ultraviolet photoemission spectroscopy is used to directly determine the momentum-dependent electronic structure dynamics in the layered Peierls-Mott insulators 1T-TaS(2) and 1T-TaSe(2) on the sub-300 fs time scale. Extracted spectroscopic order parameters display a global two-time-scale dynamics indicating a quasi-instantaneous loss of the electronic orders and...
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Recent Cerenkov observations of the two BL Lac objects PKS 2155–304 and Mkn 501 revealed TeV flux variability by a factor ∼ 2 in just 3–5 minutes. Even accounting for the effects of relativistic beaming, such short timescales are challenging simple and conventional emitting models, and call for alternative ideas. We explore the possibility that extremely fast variable emission might be produced...
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ژورنال
عنوان ژورنال: Mathematical and Computer Modelling
سال: 1988
ISSN: 0895-7177
DOI: 10.1016/0895-7177(88)90029-5