/** create required security levels list for countermeasures */
public int[] createReqLvlList(int[] viSecClass, boolean bNoLimit) {
int[] viMGLvlReq = new int[_vsCode.length];
int[] viSCLvlReq = new int[_vsGoals.length];
if (bNoLimit) {
System.arraycopy(_viMGLvlsMax, 0, viMGLvlReq, 0, _vsCode.length);
} else {
for (int i = 0; i < _vsCode.length; i++) {
for (int j = 0; j < _vsGoals.length; j++) {
viSCLvlReq[j] =
(Integer)
ee.ioc.cs.vsle.api.ProgramContext.queryTable(
_sDependTableID,
_vsCode[i],
Character.toString((_vsGoals[j]).charAt(0)),
viSecClass[j]);
}
Arrays.sort(viSCLvlReq);
viMGLvlReq[i] = viSCLvlReq[viSCLvlReq.length - 1];
if (viMGLvlReq[i] < _viMGLvlsSit[i])
viMGLvlReq[i] =
_viMGLvlsSit[i]; // required security levels must always be at least the current level
}
}
return viMGLvlReq;
}
/* lossesList contains couples (Effect, Losses) */
public double[][] createLossesList(boolean bMonotonous, boolean bTheoretical) {
System.out.println("Creating losses list (Security Class -> Losses)... ");
Hashtable<Double, Double> htLossesList = new Hashtable<Double, Double>();
Hashtable<Integer, Double> htLossesLookup = new Hashtable<Integer, Double>();
Hashtable<Integer, Double> htEffectLookup = new Hashtable<Integer, Double>();
double[][] mdLossesList;
double dLosses;
// for every SecClass combination, calculate Losses, ReqLvls and Effectiveness
for (int i = 0; i < _iNrComb; i++) {
dLosses = 0;
int[] viSecClass = intToSecClass(i);
for (int j = 0; j < _viLvlsNbr.length; j++) {
dLosses +=
(Double)
ee.ioc.cs.vsle.api.ProgramContext.queryTable(
_sLossesTableID, Character.toString((_vsGoals[j]).charAt(0)), viSecClass[j]);
}
int[] reqLvlList = createReqLvlList(viSecClass, false);
double dEffect = Optimizer.calcEffect(reqLvlList);
// in case of duplicates use average value for losses
if (!htLossesList.containsKey(dEffect)) htLossesList.put(dEffect, dLosses);
else htLossesList.put(dEffect, (dLosses + htLossesList.get(dEffect)) / 2);
// create a lookup table for (secClass - losses) couples
htLossesLookup.put(i, dLosses);
// create a lookup table for (secClass - effect) couples
htEffectLookup.put(i, dEffect);
}
// if asked to, create a monotonously decreasing version of the losses information do
if (bMonotonous) {
mdLossesList = new double[_iNewNbrComb][2];
int[] viSecClass = new int[_vsGoals.length];
Arrays.fill(viSecClass, 0);
double dLossesRef, dMaxDiff, dTmpDiff;
int iIndex;
for (int i = 0; i < _iNewNbrComb; i++) {
mdLossesList[i][0] = htEffectLookup.get(secClassToInt(viSecClass));
mdLossesList[i][1] = htLossesLookup.get(secClassToInt(viSecClass));
dLossesRef = htLossesLookup.get(secClassToInt(viSecClass));
iIndex = 0;
dMaxDiff = 0;
dTmpDiff = 0;
for (int j = 0; j < _vsGoals.length; j++) {
if ((viSecClass[j] + 1) < _viLvlsNbr[j]) {
viSecClass[j] += 1;
dTmpDiff = dLossesRef - htLossesLookup.get(secClassToInt(viSecClass));
viSecClass[j] -= 1;
}
if (dTmpDiff > dMaxDiff) {
iIndex = j;
dMaxDiff = dTmpDiff;
}
}
viSecClass[iIndex] += 1;
}
}
// else, sort the Hashtable htLossesList with regard to the effectiveness values
else {
Vector<Double> vec = new Vector<Double>(htLossesList.keySet());
Collections.sort(vec);
Iterator<Double> it = vec.iterator();
mdLossesList = new double[htLossesList.size()][2];
int iI = 0;
while (it.hasNext()) {
double dOrdered = it.next();
mdLossesList[iI][0] = dOrdered;
mdLossesList[iI][1] = htLossesList.get(dOrdered);
iI++;
}
}
// if asked to add the theoretical point (Effect=1 - losses=0) do the following
if (bTheoretical) {
double[][] mdLossesListTemp = new double[mdLossesList.length + 1][2];
for (int i = 0; i < mdLossesList.length; i++) {
mdLossesListTemp[i][0] = mdLossesList[i][0];
mdLossesListTemp[i][1] = mdLossesList[i][1];
}
mdLossesListTemp[mdLossesListTemp.length - 1][0] = 1;
mdLossesListTemp[mdLossesListTemp.length - 1][1] = 0;
mdLossesList = new double[mdLossesListTemp.length][2];
for (int i = 0; i < mdLossesList.length; i++) {
mdLossesList[i][0] = mdLossesListTemp[i][0];
mdLossesList[i][1] = mdLossesListTemp[i][1];
}
}
System.out.println(Arrays.deepToString(mdLossesList));
System.out.println("... done");
return mdLossesList;
}
