ePayment Security ECOM 6016 Electronic Payment Systems • Keep financial data secret from unauthorized parties (privacy) – CRYPTOGRAPHY Lecture 3 ePayment Security • Verify that messages have not been altered in transit (integrity) – HASH FUNCTIONS • Prove that a party engaged in a transaction ( (nonrepudiation) ) – DIGITAL SIGNATURES • Verify identity of users (authentication) – PASSWORDS‚ DIGITAL CERTIFICATES THE UNIVERSITY OF HONG KONG FEB/MAR 2012 © 2012 MICHAEL I. SHAMOS
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Internet and its Uses in Our Daily Life How difficult our life would have been if there was no Internet. Think about it. To find some information‚ we all have acquired the habit of ’Google’ it on the web; within a few seconds the screen displays the desired information. You want to book tickets for a movie night with friends‚ and you can book them at the click of a button. Many of us cannot imagine life without the social networking sites. The Internet has indeed made the world a small place and
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The heart to be both elastic and strong to meet the needs of human body. The elasticity of the atria and ventricles I s import to accommodate the preload that stretch of the myofibrils that is vital for cardiac output. D. Which of the three layers of the heart did the tissue used to make your slide originate from? Myocardium/muscle tissue Exercise 2: The
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Campus Security Guidelines Recommended Operational Policies for Local and Campus Law Enforcement Agencies A project of William J. Bratton‚ Chief of Police‚ Los Angeles President‚ Major Cities Chiefs Association In partnership with Bureau of Justice Assistance U.S. Department of Justice Director James H. Burch‚ II Bureau of Justice Assistance‚ Office of Justice Programs‚ U.S. Department of Justice Staff support provided by Lafayette Group This project was supported by Grant
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Computer security and Network Security is the means by which business and governments are protecting against computer intrusions and attack to prevent loss of data‚ information and provided services. Everything is now on computers‚ peoples whole lives are documented on computers. Big business and the government rely on technologies that use computers‚ whether it is used for storage‚ a medium between the customers and themselves or actual work. With all this information and data being stored‚ transferred
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Defining National Security VS Personal Privacy is a matter of looking at the basic nature of each. From research collected there is a consensus that we need balance. Too much of one hurts the other and vise versa. There are a couple of articles that range from Civil Liberties to the birth of public right to know that support the overall claim. Talks about the effects of censorship in different situations like war and peace will help prove that a balance needs to be forged. The problem here
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Personality Reflection Of the many ways that exist to classify and conceptualize individual differences‚ some are obvious and somewhat visible‚ such as gender‚ race‚ language‚ origin and / or social background. Other forms‚ perhaps not as visible‚ are nonetheless influential distinctions such as culture or personality. The personality‚ like many things in life can be difficult to explain‚ is what makes every human being different‚ unique and exceptional. Today‚ the personality is an issue around
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IT-250 Week 5 Questions 1. What function does every C program have? Why should you split large programs into several functions? Functions named main (). Easy to trouble shoot problems with C program coding errors. 2. What command could you give to compile prog.c and func.c into executable named cprog? $ cc -o cprog prog.c func.c 3. Show two ways to instruct the C preprocessor to include the header file /usr/include/math.h in you C program. Assuming that the declar.h header file
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Antionette Stewart April 12‚ 2011 Law Enforcement CJ 384 CHAPTER 10 DISCUSSION QUESTIONS 1. Which is the greater threat—domestic or international terrorism? Why? International terrorism because it’s foreign based or directed by countries or groups outside the United States against the United States. 2. Does your police department have a counterterrorism strategy in place? If so‚ what is it? The USA PATRIOT ACT which gives police unprecedented ability to search‚ seize‚ detain or eavesdrop
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Imagine having the opportunity of getting a $250 scholarship as an eighth grader. Now‚ imagine actually winning it after all the tribulations and hardships that stood in your way. I won that scholarship‚ and I could not believe it! After going through so many trials‚ all the work needed to even qualify for the scholarship‚ and worrying about my competition and how amazing they all were‚ I finally achieved what I had been longing for! Miranda was a former band student. Her parents put together a
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