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1. 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?
2. Natural-language text in ASCII can be compressed by at least 50% using various compression 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 (assuming no encryption or no expansion due to encryption)? What is the efficiency of the scheme, that is, its payload/(bytes transmitted)?
discuss why data structure is useful and important in programing. use your own examples to explain what an array is
Generate a context diagram of the system
What are the ramifications of the parts that are missing? What should be done to improve the process (if anything)?
The objective of this assignment to is make multiple backups of databases and then to restore the databases from the backups you've created.
Write down a program that accepts three numbers representing temperature, relative humidity, and wind speed; assigns the value true or false to the boolean variable okToSpray according to these criteria; and displays this value.
1.what role do you think media internet music industry movies or advertising play the development of our self-concept?
questionwrite down a program visual basic format that has a key form with following attributes-a main form with these
What are prospect trends for healthcare informatics.
define the process that occurs between a client and Web server by describing the functionality of the OSI reference model. Diagram the interaction between the client and the server and illustrate the data flow.
Explain how the systems analyst may help along with the project management tasks. Also, explain how a new employee can contribute to the tasks.
Write down an algorithm and develop a flow chart in order to determine all people who have computer experience and at least five years of company service.
Evaluate in GF(2^8): (x^4+x+1)/(x^7+x^6+x^3+x^2), where the irreducible polynomial is the one used by AES, P(x)=x^8+x^4+x^3+x+1.
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