import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.PrintStream;
import java.math.BigInteger;

class RSA
{
  private BigInteger e;
  private BigInteger N;

  public RSA()
  {
    e = new BigInteger("65537");

    N = new BigInteger("8676501371527603707046649463607307102630263555107898749675581255899643814607328218793049165941571948388528541053041270620192532464076805684971188337041207");

    StudDec();
  }

  private void StudDec()
  {
    try
    {
      BigInteger localBigInteger1 = new BigInteger("9934015501987489478954132189405610324844312319");
      BigInteger localBigInteger2 = new BigInteger("99340155010215687980489046588951050189415108905");
      BigInteger localBigInteger3 = new BigInteger("90812475647856345096216878951231489462123565569");
      BigInteger localBigInteger4 = new BigInteger("99340155019967987599059875157924323536432412369");
      BigInteger localBigInteger5 = new BigInteger("99340155019967987599059875157924379375072700959");
      BigInteger localBigInteger6 = new BigInteger("9934015501996798987897945123584215712659054800");

      BufferedReader localBufferedReader = new BufferedReader(new java.io.FileReader(new java.io.File("./key_enc.txt")));

      StringBuilder localStringBuilder = new StringBuilder();
      String str; while ((str = localBufferedReader.readLine()) != null) {
        localStringBuilder.append(str);
      }


      java.security.MessageDigest localMessageDigest = java.security.MessageDigest.getInstance("SHA1");
      BigInteger localBigInteger7 = new BigInteger(localMessageDigest.digest(new BigInteger(localStringBuilder.toString()).toByteArray()));

      if (localBigInteger7.equals(localBigInteger5)) {
        System.out.println("Hash value IS the same!\nWill not decrypt!");
      }
      else {
        System.out.println("Hash value NOT the same!\nWill now decrypt!");

        BigInteger localBigInteger8 = new BigInteger(localStringBuilder.toString());

        BigInteger localBigInteger9 = new BigInteger("7181403508391389434415243315155483478556343512415879182342413321474511123734532490880346234875504035084002696376323165913475534992458194618028208458613661");
        BigInteger localBigInteger10 = new BigInteger("9875132165489974123156789089400149879850322015549879875451448794132132497984501065498780201321089789745102301018798789465454878454181102012399548978753222");
        BigInteger localBigInteger11 = new BigInteger("9638517412559856218784151215881158151232131510001189878405014984012034879045100000078941087052121516574851532184652058454651234987156512315737377417989256");
        BigInteger localBigInteger12 = new BigInteger("5195547855779624942846616591388149593903017577195391588450318305789487188312595787599252207103287351720806256619464776153214603580883553532779348658538273");
        BigInteger localBigInteger13 = new BigInteger("7181403508391339853128312671192434985461884512304040886141648985096425747775098543795826639185604035084002696376323165913475534992458194618028208458613661");
        BigInteger localBigInteger14 = new BigInteger("2159798561205897896963639635825417396624174152820202027597375750979708976786827574176968375741714786967885532520202097675432457805581102012399548978753222");
        BigInteger localBigInteger15 = new BigInteger("2310321059789456599984695174148128371982341239237128319731928341293415193231531125231459100084423843580543845473867489645426456049874840124109243450055468");
        BigInteger localBigInteger16 = localBigInteger8.modPow(localBigInteger12, N);

        BufferedWriter localBufferedWriter = new BufferedWriter(new java.io.FileWriter(new java.io.File("./key_dec.txt")));
        localBufferedWriter.write(new String(localBigInteger16.toByteArray()));
        localBufferedWriter.close();

        System.out.println("AES key written to key_dec.txt");
      }



      localBufferedReader.close();
    } catch (Exception localException) {
      System.out.println("Error in StudDec(): " + localException.getMessage());
    }
  }





  public static void main(String[] paramArrayOfString)
  {
    RSA localRSA = new RSA();
  }
}