Maurice Tutor

(5)

$15/per page/Negotiable

About Maurice Tutor

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
Last Sign in: 399 Weeks Ago, 1 Day Ago
Questions Answered: 66690
Tutorials Posted: 66688

Education

  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

Experience

  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 22 Feb 2018 My Price 5.00

Internet cafes

22.    As Internet cafes become more widespread, people are going to want ways of going to one anywhere in the world and conducting business there. Describe a way to produce signed documents from one using a smart card (assume that all the computers are equipped with smart-card readers). Is your scheme secure?

23.    Natural-language text in ASCII can be compressed by at least 50% using various com- pression algorithms. Using this knowledge, what is the steganographic carrying capaci- ty for ASCII text (in bytes) of a 1600 ´ 1200 image stored using the low-order bits of each pixel? How much is the image size increased by the use of this technique (assum- ing no encryption or no expansion due to encryption)? What is the efficiency of the scheme, that is, its payload/(bytes transmitted)?

Answers

Maurice Tutor
(5)
Status NEW Posted 22 Feb 2018 08:02 PM My Price 5.00

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