نتایج جستجو برای: سیستم تحت خلا vss

تعداد نتایج: 162275  

Journal: :IACR Cryptology ePrint Archive 2002
Ventzislav Nikov Svetla Nikova Bart Preneel Joos Vandewalle

Verifiable secret sharing schemes (VSS) are secret sharing schemes (SSS) dealing with possible cheating by participants. In this paper we use the VSS proposed by Cramer, Damgard and Maurer [6, 7, 5]. They introduced a purely linear algebraic method to transform monotone span program (MSP) based secret sharing schemes into VSS. In fact, the monotone span program model of Karchmer and Wigderson [...

Journal: :IACR Cryptology ePrint Archive 2010
Arpita Patra

This dissertation deals with three most important as well as fundamental problems in secure distributed computing, namely Verifiable Secret Sharing (VSS), Byzantine Agreement (BA) and Multiparty Computation (MPC). VSS is a two phase protocol (Sharing and Reconstruction) carried out among n parties in the presence of a centralized adversary who can corrupt up to t parties. Informally, the goal o...

2010
CONSTANTIN PALEOLOGU JACOB BENESTY SILVIU CIOCHINĂ Constantin Paleologu Jacob Benesty Silviu Ciochină

The normalized least-mean-square (NLMS) algorithm is one of the most common choices for echo cancellation. Nevertheless, an NLMS algorithm has to compromise between several performances criteria (e.g., convergence rate versus misadjustment, tracking capabilities versus robustness). Thus, a variable step-size NLMS (VSS-NLMS) algorithm represents a more reliable solution. Recently, several VSS-NL...

2011
Chun-Yu Chen Jyun-Jie Wang Chi-Yuan Lin Chuin-Mu Wang

A novel verifiable secret sharing method for Verifiable secret sharing (VSS) in halftone image based on linear block code with a parity check matrix is proposed. The proposed method, which not only verifies a secret image but also introduces multiple shadows for multiple users. The proposed method adopts forward error correction code (FEC) strategy based on property of linear block codes. There...

Journal: :Biomass 2022

Influences of following anaerobic digestion (AD) parameters like microaeration, pH, and VSS (Volatile Suspended Solid) using sour cabbage as substrate was checked in the publication. Results fermentation under condition small oxygen addition presented this research can be classified dark (DF—a special case AD) or hydrogenotrophic digestion. The investigations were carried out for two concentrat...

Journal: :حولیات أداب عین شمس 2020

Journal: :Circulation. Cardiovascular imaging 2010
Noah Liel-Cohen Yossi Tsadok Ronen Beeri Peter Lysyansky Yoram Agmon Micha S Feinberg Wolfgang Fehske Dan Gilon Ilan Hay Rafael Kuperstein Marina Leitman Lisa Deutsch David Rosenmann Alik Sagie Sarah Shimoni Mordehay Vaturi Zvi Friedman David S Blondheim

BACKGROUND Identification and quantification of segmental left ventricular wall motion abnormalities on echocardiograms is of paramount clinical importance but is still performed by a subjective visual method. We constructed an automatic tool for assessment of wall motion based on longitudinal strain. METHODS AND RESULTS Echocardiograms of 105 patients (3 apical views) were blindly analyzed b...

Journal: :IEICE Transactions 2005
Ching-Nung Yang Tse-Shih Chen

The Visual Secret Sharing (VSS) scheme proposed by Naor and Shamir is a perfectly secure scheme to share a secret image. By using m sub pixels to represent one pixel, we encrypt the secret image into several noise-like shadow images. The value of m is known as the pixel expansion. More pixel expansion increases the shadow size and makes VSS schemes impractical for real application. In this pape...

Journal: :Bioresource technology 2010
Michael Rodgers Guangxue Wu

In this study, polyhydroxybutyrate (PHB)--a biodegradable plastics material--was produced by activated sludge performing enhanced biological phosphorus removal (EBPR) in batch experiments under anaerobic, aerobic and anaerobic/aerobic conditions. Under anaerobic conditions, the maximum PHB content of the dry biomass was 28.8% by weight, while under aerobic or anaerobic/aerobic conditions, the m...

2002
Hirosuke YAMAMOTO

In this paper, a method is proposed to construct an n-out-of-n visual secret sharing scheme for gray-scale images, for short an (n, n)-VSS-GS scheme, which is optimal in the sense of contrast and pixel expansion, i.e., resolution. It is shown that any (n, n)-VSS-GS scheme can be constructed based on the socalled polynomial representation of basis matrices treated in [15], [16]. Furthermore, it ...

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