/**
* * generate password scheme either a) during initialization or b) after successful login
*
* @param hpwd
* @param positions
* @param password
*/
private static void generateScheme(BigInteger hpwd, Position[] positions, String password) {
/* generate new random polynomial */
Polynomial newPoly = Polynomial.getRandomPolynomial(Constants.M - 1, hpwd);
/* generate new R value and persist */
Generator.R = Generator.getRandomInteger(Generator.BIT_LENGTH);
LoginHandler.getPreferences().put(Constants.PREF_R, Generator.R.toString());
/* reinitialize P and G functions with new R value */
initFunctions(password);
/* generate new Instruction Table and write to file */
InstructionTable iTable = InstructionTable.generateInstructionTable(positions, newPoly);
iTable.writeToFile(Constants.INSTRUCTION_TABLE_FILE_PATH);
}
