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QUESTION
(a) Using the Luhn 10 check formula verify whether the following account number is compliant: 49927398716. Show details of your workings
(b) Why is it advisable to provide a virtual keypad to the user for entering the password or any sensitive information such as credit card numbers?
(c) The .NET framework provides several hashing algorithms in the System.Security.Cryptography namespace namely the SHA1CryptoProvider, and the SHA1Managed. Distinguish between the CryptoProvider and the Managed classes. Your answer should include advantage(s) and/or disadvantage(s) of each
(d) (i) Why the Random class in the .NET framework is not suitable for generating random bytes for cryptography purposes?
(ii) Name the class that is typically used for generating random bytes for cryptography purposes. Are the values generated truly random? Justify your answer
The cost of building and maintaining an organizational computing ecosystem has become a bigger part of most organizations’ budgets. Organizations have been looking for ways to redu
what is computer? explaine the block diagram of a general purpose digital computer.
Question 1 Discuss the impacts of disaster faced by the organization Question 2 Explains the steps involved in disaster recovery planning Question 3 What do you mean by
DESIGNING COMPUTER BASED INFORMATION SYSTEMS Background The role of Management Information Systems (MIS) in an organization can be considered as providing
3. Let f, g: R?R, where g(x) 1 - x + x2 and f (x)=ax + b. If (g ? f )(x)= 9x2 - 9x + 3, determine a, b.
How do I change file permissions? Every time I execute chmod commands it tells me permission denied.
The use of manage files very much facilitates the creation of files and programmer can focus on other aspects of the programming lacking worrying on details which can be handled by
Question 1 Write an assembly language program to find the highest among two numbers Question2 Draw and explain the internal architecture of 8085 briefly Question3 Explai
Electronic transmission Frequency: Frequency is the rate at which a wave or cycle alternates between high and low (analog mode) or on and off (digital mode). For example, the
At times, Brewbean''s has changed the id number for existing products. In the past, they have had to add a new product row with the new id to the BB_PRODUCT table, modify all the c
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