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public class PasswordCracker {
// dies ist der laut Angabe bekannte Hashwert des Passworts
public static final String HASH = "ef937752f7348a964445f60857009f881983a6af";
public static void main(String[] args) {
int numProcs = Runtime.getRuntime().availableProcessors();
Thread[] workers = new Thread[numProcs];
Synchronizer sync = new Synchronizer(HASH);
for (int i = 0; i < numProcs; i++) {
workers[i] = new Thread(new PasswordCrackerThread(sync, rangeBound(numProcs, i), rangeBound(numProcs, i + 1) - 1));
workers[i].start();
}
synchronized (sync) {
while (! sync.hasSolution()) {
try {
sync.wait();
} catch (InterruptedException e) {}
}
}
for (Thread w : workers)
w.interrupt();
System.out.println("Guessed this password: " + sync.getSolution());
System.exit(0);
}
public static long rangeBound(int n, int i) {
long upperBound = (long) 1e8;
return n == i ? upperBound + 1 : (upperBound / n) * i;
}
}
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