permutation.java

基于JPEG图像的数字密写方法 F5算法的JAVA程序

package crypt;

public class Permutation {
    int[] shuffled;   // shuffled sequence

    // The constructor of class Permutation creates a shuffled
    // sequence of the integers 0 ... (size-1).
    public Permutation(int size, F5Random random) {
        int i, randomIndex, tmp;
        shuffled = new int[size];

	// To create the shuffled sequence, we initialise an array
	// with the integers 0 ... (size-1).
        for (i=0; i<size; i++)	// initialise with 磗ize