Sorting algorithms can create any permutation of an input sequence by simply numbering the input elements in the required order and sorting on these numbers. Write a parallel program that randomizes...

Sorting algorithms can create any permutation of an input sequence by simply numbering the input elements in the required order and sorting on these numbers. Write a parallel program that randomizes the contents of a document file for security purposes by first numbering the words in the file using a random-number generator and then sorting on the numbers. (Refer to Chapter 3 for details of random numbers.) Is this a good method of encoding a file for security purposes? Write a parallel program that restores the document file to its original state.