public String processWord(Matrix key, int keySize) {
String encrypted = "";
int[][] handle = new int[keySize][1];
for (int row = 0; row < keySize; row++) {
handle[row][0] = 0;
}
// for(int i=0;i<keySize;i++)
// System.out.println(toEncrypt.size());
for (Matrix vector : toEncrypt) {
for (int row = 0; row < keySize; row++) {
for (int column = 0; column < keySize; column++) {
handle[row][0] =
handle[row][0] + (key.getData()[row][column] * vector.getData()[column][0]);
}
if (handle[row][0] > 25) {
handle[row][0] = handle[row][0] % 26;
}
encrypted = encrypted + ((char) (handle[row][0] + 97));
}
vector.setData(handle);
for (int row = 0; row < keySize; row++) {
handle[row][0] = 0;
}
}
System.out.println("Encrypted text: " + encrypted);
return encrypted;
}
public boolean isKeyUsable(Matrix key, int keySize) {
int determinant = getDeterminant(key.getData(), keySize);
int alphabetSize = 26, t;
if (determinant != 0) {
while (alphabetSize != 0) {
t = determinant;
determinant = alphabetSize;
alphabetSize = t % alphabetSize;
}
if (determinant == 1) return true;
else return false;
} else return false;
}
