A company wants to transmit data over a telephone, but they are concerned that their phones may be tapped. All their data is transmitted as five-digit integers. They have asked you to write a program that will encrypt their data so that it may be transmitted more securely. Your program should read the five-digit integer and encrypt it as follows: Replace each digit by the remainder after (the sum of that digit plus 7) is divided by10. Then, swap the first digit with the fourth, and swap the second digit with the fifth. Then print the encrypted integer. Write a separate program that inputs an encrypted five-digit integer and decrypts it to form the original number.

A company wants to transmit data over a telephone, but they are concerned that their phones may be tapped. All their data is transmitted as five-digit integers. They have asked you to write a program that will encrypt their data so that it may be transmitted more securely. Your program should read the five-digit integer and encrypt it as follows: Replace each digit by the remainder after (the sum of that digit plus 7) is divided by10. Then, swap the first digit with the fourth, and swap the second digit with the fifth. Then print the encrypted integer. Write a separate program that inputs an encrypted five-digit integer and decrypts it to form the original number.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

I need help with creating a Java program described below: Hamming distance. The Hamming distance between two-bit strings of length n is equal to the number of bits in which the two strings differ. Write a program that reads in an integer k and a bit string s from the command line, and prints all bit strings that have Hamming distance at most k from s. For example, if k is 2 and s is 0000, then your program should print 0011 0101 0110 1001 1010 1100 Hint: Choose k as the number of bits to flip in s.
On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of f0 * rn, where n is the distance (number of keys) from that key, and r is 2(1/12). Given an initial key frequency, output that frequency and the next 4 higher key frequencies. Output each floating-point value with two digits after the decimal point, which can be achieved by executingcout << fixed << setprecision(2); once before all other cout statements. Ex: If the input is: 440.0 (which is the A key near the middle of a piano keyboard), the output is: 440.00 466.16 493.88 523.25 554.37 Note: Use one statement to compute r = 2(1/12) using the pow function (remember to include the cmath library). Then use that r in subsequent statements that use the formula fn = f0 * rn with n being 1, 2, 3, and finally 4.
On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of f0 * rn, where n is the distance (number of keys) from that key, and r is 2(1/12). Given an initial key frequency, output that frequency and the next 4 higher key frequencies. Output each floating-point value with two digits after the decimal point, which can be achieved by executingcout << fixed << setprecision(2); once before all other cout statements. Ex: If the input is: 440.0 (which is the A key near the middle of a piano keyboard), the output is: 440.00 466.16 493.88 523.25 554.37 Note: Use one statement to compute r = 2(1/12) using the pow function (remember to include the cmath library). Then use that r in subsequent statements that use the formula fn = f0 * rn with n being 1, 2, 3, and finally 4. I am having trouble putting them on one sentence line.
On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of f0 * rn, where n is the distance (number of keys) from that key, and r is 2(1/12). Given an initial key frequency, output that frequency and the next 4 higher key frequencies. Output each floating-point value with two digits after the decimal point, which can be achieved by executingcout << fixed << setprecision(2); once before all other cout statements.
Write a program that asks the user to enter a signed number and read it. Then display the content of multiplying this number by 5. 2. Write a program that asks the user to enter an unsigned number and read it. Then swap the bits at odd positions with those at even positions and display the resulting number. For example, if the user enters the number 9, which has binary representation of 1001, then bit 0 is swapped with bit 1, and bit 2 is swapped with bit 3, resulting in the binary number 0110. Thus, the program should display 6. #tow question using MIPS
A company that wants to send data over the Internet has asked you to write a program that will encrypt it so that it may be transmitted more securely. All the data is transmitted as four-digit integers. Your application should read a four-digit integer entered by the user and encrypt it as follows: Replace each digit with the result of adding 7 to the digit and getting the remainder after dividing the new value by 10. Then swap the first digit with the third, and swap the second digit with the fourth. Then print the encrypted integer. Write a separate application that inputs an encrypted four-digit integer and decrypts it (by reversing the encryption scheme) to form the original number java programming
Write a program in Python that asks the user to enter an integer and prints two integers, root and power, such that 1 < power < 6 and root ** power is equal to the integer entered by the user. If no such pair of integers exists, it should print a message to that effect. Write the program so that if the user gives integer 64, then your program will answer that 4 ** 3 is 64, that is, it looks for the lowest root for which root ** power is the desired integer.
Encryption is commonly used to disguise messages on the internet. A Caesar cipher performs a shift of all of the characters in a string (based on their ASCII values, see Table 1.2), e.g. h e l l o  m j q q t The example shows a shift with a distance of 5 characters, i.e. h(ASCII:104)  m(ASCII:109) Write a Python program that ask the user to input a line of plaintext and the distance value and outputs an encrypted text using a Caesar cipher, with the ASCII values range from 0 through 127. The program should work for any printable characters.
Write a program that coverts a zip code to a bar code. The bar codes use large and small bars. We will use : as a small bar and | as a large bar. Each digit has its own bar pattern. 1 is :::|| 2 is ::|:| 3 is ::||: 4 is :|::| 5 is :|:|: 6 is :||:: 7 is |:::| 8 is |::|: 9 is |:|:: 0 is ||::: The barcode also includes a check digit. The final digit added to the bar code verifies the previous numbers are correct. To Determine the checksum: Add all the digits together Determine what needs to be added to make the total a multiple of 10 The bar code also always starts and ends with a large bar. This is used by the scanner to align the letter. Drexel's Zip Code is 19104 The check digit is 5. The sum of the digits is 1+9+1+0+4 = 15. To make 15 a multiple of 10, we need to add 5. The bar code will be |:::|||:|:::::||||::::|::|:|:|:| The majority of work in this problem is done by digit. It makes sense to store the zip code as a string, not as an integer. Write the function checksum(zip)…
Write a program that coverts a zip code to a bar code. The bar codes use large and small bars. We will use : as a small bar and | as a large bar. Each digit has its own bar pattern. 1 is :::|| 2 is ::|:| 3 is ::||: 4 is :|::| 5 is :|:|: 6 is :||:: 7 is |:::| 8 is |::|: 9 is |:|:: 0 is ||::: The barcode also includes a check digit. The final digit added to the bar code verifies the previous numbers are correct. To Determine the checksum: Add all the digits together Determine what needs to be added to make the total a multiple of 10 The bar code also always starts and ends with a large bar. This is used by the scanner to align the letter. Drexel's Zip Code is 19104 The check digit is 5. The sum of the digits is 1+9+1+0+4 = 15. To make 15 a multiple of 10, we need to add 5. The bar code will be |:::|||:|:::::||||::::|::|:|:|:| The majority of work in this problem is done by digit. It makes sense to store the zip code as a string, not as an integer. Write the function checksum(zip)…
Write a Python program that uses a token count to simulate a simple slot machine in which 3 numbers between 0and 8 are randomly selected and printed side-by-side. Your program should ask the slot machine user to input howmany tokens the user wishes to begin with. Print “JACKPOT!” if all three of the numbers are the same after a spinand increase the tokens by 10. Print “NICE MATCH!” if only two of the tokens are the same after a spin andincrease the token count by 3. In any case, it costs the user 1 token to spin. Continue playing until the userchooses to stop (print the final token count) or the token count reaches 0 (print “Sorry, you are out of tokens”). Ifthe user wants to spin again, instruct the user to hit a carriage return. If the user wants to quit, instruct theuser to type any other character before the carriage return. Always print out the final token count before yourprogram terminates. Your code needs to include a function spin_slots() that generates the three-digitrandom…
Program Specifications: Your task is to write a program that can decrypt a message that has been encoded using a Caesarcipher. Stated another way, you need to find the “shift” for the cipher. Once you have the shift,you know the mapping so you can decrypt the message. the encryption code. use python. def encrypt(text, r): #abcdefghijklmnopqrstuvwxyzresult = ''for i in range(len(text)): # Hello Khoorchar = text[i]if char.isupper():result = result + chr((ord(char) + r - 65 ) % 26 + 65)else:result = result + chr((ord(char) + r - 97) % 26 + 97)return result while True:msg = input("\n\tEnter a String / message e.g. Today is Thursday ")rotation = int(input("\n\tEnter number of rotation e.g. 3 "))print("\n\tOriginal Message is==> ",msg," with rotation ",rotation, " The CypherText ", encrypt(msg,rotation)) No hand written and fast answer with explanation