Elliptic Curves in Public Key Cryptography: The Diffie Hellman Key Exchange Protocol and its relationship to the Elliptic Curve Discrete Logarithm Problem Public Key Cryptography Public key cryptography is a modern form of cryptography that allows different parties to exchange information securely over an insecure network‚ without having first to agree upon some secret key. The main use of public key cryptography is to provide information security in computer science‚ for example to transfer securely
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1168 Abstract—In this paper‚ we address the problem of privacy protection in video surveillance. We introduce two efficient approaches to conceal regions of interest (ROIs) based on transform-domain or codestream-domain scrambling. In the first technique‚ the sign of selected transform coefficients is pseudorandomly flipped during encoding. In the second method‚ some bits of the codestream are pseudorandomly inverted. We address more specifically the cases of MPEG-4 as it is today the prevailing standard
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it retains some property of the original object (i.e.‚ the object has an invariance under the transform). For instance‚ a circle rotated about its center will have the same shape and size as the original circle. A circle is then said to be symmetric under rotation or to have rotational symmetry. The type of symmetries that are possible for a geometric object depend on the set of geometric transforms available
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ANALYSIS‚ VERIFICATION AND FPGA IMPLEMENTATION OF VEDIC MULTIPLIER WITH BIST CAPABILITY A thesis report submitted in the partial fulfillment of the requirement for the award of the degree of Master of Technology in VLSI Design & CAD Submitted by Vinay Kumar Roll No.: 60761026 Under the Guidance Of Mr. Arun Kumar Chatterjee Lecturer‚ ECED Department of Electronics and Communication Engineering THAPAR UNIVERSITY (Formerly Known as Thapar Institute of Engineering and Technology) PATIALA-147004‚ INDIA
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For the treatment of cancer most of the drugs currently available but they have limited therapeutic potential because they are very toxic‚ expensive‚ highly inappropriate action in treating cancer‚ or having so many side effects like granulocytopenia‚ agranulocytosis‚ lymphocytopenia‚ alopecia‚ carcinogenicity or secondary cancer especially leukaemias and hyperuricaemia etc. Curcumin is one such natural herbal medicine‚ derived from the extraction of dried rhizome of turmeric or Curcumin longa‚
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SCHEME OF EXAMINATION & SYLLABI for Master of Technology (Information Security & Management) [pic] Uttrakhand Technical University‚ Dehradun www.uktech.in Study And Evaluation Scheme - M.Tech. Information Security and Management Academic Session: 2010-2011 Year 1‚ SEMESTER-i |S.No |Course Code |Subject |Periods |Evaluation Scheme |Subject
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Gerontology is not just substantial professionally but also individually. It is the study of the ageing procedures at the discrete and population level. It is an interdisciplinary field so the gerontologists take substantiation from biology‚ humanity‚ public policy‚ economics‚ sociology‚ psychology‚ public health. And that is what makes this field so exhilarating. Gerontologists focus on how ageing stimulates society and how society can affect the ageing process. Because of the undesirable implications
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The extraction of Bio-ethanol from banana and apple peelings through the process of Fermentation and Distillation Purpose & Hypothesis The main purpose of the experiment was to observe if the common household wastes apple and banana peelings- were suitable to be used as another source for production of bio-ethanol It was hypothesized that the banana peelings would produce more bio-ethanol than the apple peelings due to its greater amount of sugar Ethanol‚ which is also known as ethyl alcohol
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NANO LETTERS Extended Arrays of Vertically Aligned Sub-10 nm Diameter [100] Si Nanowires by Metal-Assisted Chemical Etching Zhipeng Huang‚† Xuanxiong Zhang‚† Manfred Reiche‚† Lifeng Liu‚† Woo Lee‚*‚†‚‡ Tomohiro Shimizu‚† Stephan Senz‚† and Ulrich Gosele*‚† ¨ Max Planck Institute of Microstructure Physics‚ Weinberg 2‚ D-06120 Halle Germany‚ and Korea Research Institute of Standards and Science‚ Yuseong‚ 305-340 Daejon‚ Korea Received July 31‚ 2008 2008 Vol. 8‚ No. 9 3046-3051 ABSTRACT
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to select one of the MPEG-1 Audio Layers to code the audio for a certain application? Question 2 a) From a high-level viewpoint‚ MP3 works as follows: 1. Divide the raw audio samples into timeslices (group of samples). 2. Apply a Modified Discrete Cosine Transform to each timeslice. 3. Use a psychoacoustic model to predict the masking thresholds for each frequency coefficient that was output by the MDCT. 4. Don’t code the frequencies that won’t be heard. 5. For the frequencies that are audible‚ re-scale
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