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You are asked to hand-turn the RSA protocol in order to encrypt and decrypt the messages (utilizing smaller numbers than are used in the practice, so that calculations may be done through the hand). Assume that Bob produces two primes, p = 11 and q = 23. (In reality these could be much larger numbers, with say 512 bits.) He determines the product N = pq = 253, and also choose the number e = 7 that is relatively prime to (p − 1)(q − 1) = 220. Bob then publishes the pair (N, e) as his public key.
a) What do you meant by Bob’s private key, d?
b) Assume that the Alice wishes to transmit the message 44 (an integer between 0 and 252) to the Bob. What is the encrypted message which Alice sends? Explain with your calculations.
c) Assume that the Bob receives the encrypted message 103from Alice. Compute the original message that Alice had sent?
Develop an algorithm to read an arbitrary number of the data records, each consisting of a name, age, and code. A Code of 1 will indicate female, a code of 2 will indicate male.
This organization is interested in quantifying its software development. Write down a report proposing suitalbe metrics and propose how these can be collected.
UDP and TCP utilize the 1s complement for their checksums. Assume you have the following three 8-bit bytes: 01010101, 01110000, 01001100. Along with the 1s complement schema, how does receiver detect the errors?
Produce a decision table
In the System Analysis and Design: Models are used extensively in the wide variety of the technical occupations beyond the information technology.
What is meant by the feasibility analysis? Explain how that experience relates to one or more of feasibility tests for technical, operational, schedule, or economic feasibility.
Write down a program which prompts the user to enter a telephone number expressed in the letters and outputs corresponding telephone number in digits.
Write down a program which has a function named presentValue which carry out this calculation. The function must accept future value, annual interest rate, and number of the years as arguments.
How to set a rule that used by snort to detect an ACK scan What do you think Bro can do a better job detecting an ACK scan?
How to figure out possibly stacks, queues and trees
Write down a program in the visual basic which determines the area of a triangle. If three sides a, b and c entered do not make a triangle transmit the message out to the screen that the data entered was invalid.
Create a report by the city and another by the product, involving details of sales and sub-totals and totals for the quantity.
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