RAM stands for

Answer the following statements true (T) or false (F)

1. One criteria for an S-box is: "If two inputs to an S-box differ in exactly one bit, the outputs must also differ in exactly one bit. “? 2. The heart of a Feistel block cipher is the function F, which relies on the use of S-boxes. ? 3. The strict avalanche criterion and the bit independence criterion appear to weaken the effectiveness of the confusion function. ? 4. An advantage of key-dependent S-boxes is that because they are not fixed, it is impossible to analyze the S-boxes ahead of time to look for weaknesses. ? 5. The key schedule algorithm is more popular and has received more attention than S-box design. ?

Please download the code provided at the exercise portal. It contains a partial implementation of the Sudoku game. Your task is to improve the implementation using patterns.

Implementation of patterns Check if there are any fields left that contain zeroes o Check every column of the puzzle if there are duplicate numbers o Check every row of the puzzle if there are duplicate numbers o Check every box of the puzzle if there are duplicate numbers 2. Think of an alternative implementation of the class SudokuBoard and implement it. Use the Abstract Factory pattern to create a class that instantiates the SudokuBoard implementation of your choice. 3. Add a new button to the game panel that triggers completion of a partially completed puzzle. That is, the user can input some numbers (maybe typing in the puzzle from a newspaper) and let an algorithm complete it. We want you to use the provided implementation of SudokuBoard in this case. That leads to the following problem: Our implementation of a Sudoku solver needs an array of integers as input, but SudokuBoard has no method with matching output. Use the Adapter pattern to provide an adapter that deals with that problem.