What are the requirements of a message authentication code.
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A:
Q: Q.6 Explain Substitution cipher.
A: Introduction In this question, we are asked to explain the Substitution cipher
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Q: Q.1 What are different encryption methods? Explain along with suitable example.
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A: Here is the c++ code of the above problem. See below steps for code.
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Q: Q.8 Discuss Pll confidentiality safeguards.
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Q: please add comments for each step. thank you
A: We need to add comments for each step.
Q: Q.6 Explain Substitution cipher.
A:
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Q: Q.1 What are different encryption methods? Explain along with suitable example.
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Q: Q.6 Explain Substitution cipher.
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Q: Q.1 What are different encryption methods? Explain along with suitable example.
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- UML specifications -empCode:string -typeContract:char -commission:double -numberofEmp:int +Employee() +Employee(tyleContract:char) +getEmpCode:string +getCommission():double +getNumberOfEmp():int +setEmpCode() +setEmpContract():int +setCommission() +updateComm(amount:double) +toString():string 3.1 Create an Employee objects project. Create an Employee class and use the provided UML diagram to code the instance fields, constructors and methods. 3.1.1 Both constructors must increment the static numberOfEmp field by one. Both constructors must call the setEmpCode() method to compile a code for the employee. Both constructors must call the setCommission() method. 3.1.2 setEmpCode() method: The empCode must be constructed in the following way: First character is the type of contract Next three characters a random 3 digits Add a backslash and the number of objects value to the code NOTE: You have to use the Random class in your code (See Ch 9). Do NOT use the Math.random()…Where do tag selectors and class selectors vary from one another in terms of the functions they perform?What is the purpose of suffixes on commands?
- ans /= c1 + c2; is equivalent to which of the following? ans = ans + (c1 / c2); ans = ans + (c1 / c2); ans = ans / (c1 + c2); ans = (ans / c1 ) + c2;The C language key word that print max value of a signed short data typeUSE C++ FOR THIS TASKQ3. A bookshop maintains the inventory of books that are being sold at the shop. The list includes details such as author, title, price, publisher, and stock position. Whenever a customer wants a book, the salesperson inputs the title and author and the system searches the list and displays whether it is available or not. If it is not, an appropriate message is displayed. If it is, then the system displays the book details and requests for the number of copies required. If the requested copies are available, the total cost of the requested copies is displayed; otherwise “Required copies not in stock” is displayed. Design a system without using a class & all defined variables must be represented as pointer type.
- This syntax is not workingIn a C program, there are advantages and drawbacks to use parameters rather of a global variable. Parameters may be sent rather than being stored in a variable.C programming task Analyse pgmEcho.c to identify how it should be improved, then rewrite it so that it is more modular, more suitable for reuse, and properly defensive in terms of errors. Note that this should involve understanding the remaining tasks as well. Code Below: #include <stdio.h> #include <stdlib.h> #define EXIT_NO_ERRORS 0 #define EXIT_WRONG_ARG_COUNT 1 #define EXIT_BAD_INPUT_FILE 2 #define EXIT_BAD_OUTPUT_FILE 3 #define MAGIC_NUMBER_RAW_PGM 0x3550 #define MAGIC_NUMBER_ASCII_PGM 0x3250 #define MIN_IMAGE_DIMENSION 1 #define MAX_IMAGE_DIMENSION 65536 #define MAX_COMMENT_LINE_LENGTH 128 int main(int argc, char **argv) {if (argc != 3) {printf("Usage: %s input_file output_file\n", argv[0]); return EXIT_WRONG_ARG_COUNT; } unsigned char magic_number[2] = {'0','0'}; unsigned short *magic_Number = (unsigned short *) magic_number; char *commentLine = NULL; unsigned int width = 0, height = 0; unsigned int maxGray = 255; unsigned char *imageData = NULL; FILE *inputFile =…