DriverCodeMalicious.java

// package DSCoinPackage;

import DSCoinPackage.*;
import HelperClasses.*;
import java.util.*;

public class DriverCodeMalicious {

    public static void main(String args[]) {

        try {
            DSCoin_Malicious obj_mm = new DSCoin_Malicious();
            Moderator mod_mm = new Moderator();
            obj_mm.pendingTransactions = new TransactionQueue();
            obj_mm.bChain = new BlockChain_Malicious();
            obj_mm.bChain.lastBlocksList = new TransactionBlock[100];
            Boolean correct_mm = true;
            obj_mm.memberlist = new Members[10];
            for (int i = 0; i < 10; i++) {
                obj_mm.memberlist[i] = new Members();
                obj_mm.memberlist[i].UID = "Member " + Integer.toString(i);
                obj_mm.memberlist[i].mycoins = new ArrayList<Pair<String, TransactionBlock>>();
                obj_mm.memberlist[i].in_process_trans = new Transaction[100];
            }
            obj_mm.bChain.tr_count = 32;
            mod_mm.initializeDSCoin(obj_mm, 128);
            // System.out.println(printDSObj(obj_mm));
            // obj_mm.show();
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[4].UID, obj_mm);
            obj_mm.memberlist[4].initiateCoinsend(obj_mm.memberlist[5].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[9].initiateCoinsend(obj_mm.memberlist[4].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[9].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[4].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            // System.out.println(printDSObj(obj_mm));
            // obj_mm.show();
            obj_mm.memberlist[2].MineCoin(obj_mm);
            // obj_mm.show();
            // System.out.println(printDSObj(obj_mm));
            finalise(obj_mm, obj_mm.bChain.lastBlocksList[0]);
            // System.out.println(printDSObj(obj_mm));
            Transaction tr[] = new Transaction[32];

            Transaction tobj_mm = new Transaction();
            tobj_mm.coinID = "100002";
            tobj_mm.Source = obj_mm.memberlist[2];
            tobj_mm.Destination = obj_mm.memberlist[7];
            tobj_mm.coinsrc_block = obj_mm.bChain.lastBlocksList[0].previous.previous.previous.previous;
            tr[0] = tobj_mm;
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[4].UID, obj_mm);
            obj_mm.memberlist[4].initiateCoinsend(obj_mm.memberlist[5].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[9].initiateCoinsend(obj_mm.memberlist[4].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[9].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[4].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            for (int i = 1; i < 32; i++) {
                tr[i] = obj_mm.pendingTransactions.RemoveTransaction();
            }
            TransactionBlock tB = new TransactionBlock(tr);
            tB.previous = obj_mm.bChain.lastBlocksList[0];
            obj_mm.bChain.InsertBlock_Malicious(tB);
            finalise(obj_mm, tB, 1);
            // System.out.println(printDSObj(obj_mm));

            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            // Transaction t = obj_mm.pendingTransactions.RemoveTransaction();
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[4].UID, obj_mm);
            obj_mm.memberlist[4].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[4].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[9].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[5].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[8].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[8].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[9].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[5].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[4].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[4].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[4].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            // System.out.println(obj_mm.pendingTransactions.size());
            obj_mm.memberlist[7].MineCoin(obj_mm);
            finalise(obj_mm, obj_mm.bChain.lastBlocksList[1]);
            // System.out.println(printDSObj(obj_mm));

            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[5].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[8].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[4].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[4].UID, obj_mm);
            obj_mm.memberlist[4].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[4].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[9].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[9].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[5].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[4].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[6].MineCoin(obj_mm);
            finalise(obj_mm, obj_mm.bChain.lastBlocksList[1]);
            // System.out.println(printDSObj(obj_mm));
            Transaction tobj_mm1 = new Transaction();
            tobj_mm1.coinID = "100028";
            tobj_mm1.Source = obj_mm.memberlist[9];
            tobj_mm1.Destination = obj_mm.memberlist[8];
            tobj_mm1.coinsrc_block = obj_mm.bChain.lastBlocksList[0].previous.previous.previous.previous;
            // System.out.println(obj_mm.bChain.FindLongestValidChain().checkTransaction(tobj_mm1));
            obj_mm.pendingTransactions.AddTransactions(tobj_mm1);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[9].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[5].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[7].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[4].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[8].UID, obj_mm);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[5].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[4].initiateCoinsend(obj_mm.memberlist[5].UID, obj_mm);
            obj_mm.memberlist[8].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[2].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[5].UID, obj_mm);
            obj_mm.memberlist[6].initiateCoinsend(obj_mm.memberlist[9].UID, obj_mm);
            obj_mm.memberlist[0].initiateCoinsend(obj_mm.memberlist[8].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[5].UID, obj_mm);
            obj_mm.memberlist[2].initiateCoinsend(obj_mm.memberlist[1].UID, obj_mm);
            obj_mm.memberlist[1].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[3].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            // obj_mm.memberlist[5].initiateCoinsend(obj_mm.memberlist[0].UID, obj_mm);
            // obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[3].UID, obj_mm);
            // obj_mm.memberlist[7].initiateCoinsend(obj_mm.memberlist[6].UID, obj_mm);
            obj_mm.memberlist[0].MineCoin(obj_mm);
            finalise(obj_mm, obj_mm.bChain.lastBlocksList[1]);
            System.out.println(printDSObj(obj_mm));
            // for (int i = 0; i < 10; i++) {
            // System.out.println(printMember(obj_mm.memberlist[i]));
            // }
            // System.out.println(obj_mm.bChain.lastBlocksList[0].dgst);

            System.out.println("----------- Mr.X -----------");
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

    public static void finalise(DSCoin_Malicious DSObj, TransactionBlock tB) {
        for (int j = 0; j < tB.trarray.length - 1; j++) {
            Transaction tobj_mm = tB.trarray[j];
            for (int i = 0; i < DSObj.memberlist.length; i++) {
                if (DSObj.memberlist[i].UID == tobj_mm.Destination.UID) {
                    DSObj.memberlist[i].mycoins.add(new Pair<String, TransactionBlock>(tobj_mm.coinID, tB));
                    DSObj.memberlist[i].mycoins.sort(new Comparator<Pair<String, TransactionBlock>>() {
                        @Override
                        public int compare(Pair<String, TransactionBlock> p1, Pair<String, TransactionBlock> p2) {
                            if (Integer.parseInt(p1.get_first()) > Integer.parseInt(p2.get_first())) {
                                return 1;
                            } else {
                                return -1;
                            }
                        }
                    });
                    break;
                }
            }
        }
    }

    public static void finalise(DSCoin_Malicious DSObj, TransactionBlock tB, int z) {
        for (int j = z; j < tB.trarray.length; j++) {
            Transaction tobj_mm = tB.trarray[j];
            for (int i = 0; i < DSObj.memberlist.length; i++) {
                if (DSObj.memberlist[i].UID == tobj_mm.Source.UID) {
                    DSObj.memberlist[i].mycoins
                            .add(new Pair<String, TransactionBlock>(tobj_mm.coinID, tobj_mm.coinsrc_block));
                    DSObj.memberlist[i].mycoins.sort(new Comparator<Pair<String, TransactionBlock>>() {
                        @Override
                        public int compare(Pair<String, TransactionBlock> p1, Pair<String, TransactionBlock> p2) {
                            if (Integer.parseInt(p1.get_first()) > Integer.parseInt(p2.get_first())) {
                                return 1;
                            } else {
                                return -1;
                            }
                        }
                    });
                    break;
                }
            }
        }
    }

    public static DSCoin_Honest createObj(int numOfMembers, int trcount) {
        DSCoin_Honest obj_7 = new DSCoin_Honest();
        obj_7.pendingTransactions = new TransactionQueue();
        obj_7.memberlist = new Members[numOfMembers];
        for (int i = 0; i < numOfMembers; i++) {
            obj_7.memberlist[i] = new Members();
            obj_7.memberlist[i].UID = Integer.toString(i + 101);
            obj_7.memberlist[i].mycoins = new ArrayList<Pair<String, TransactionBlock>>();
        }
        obj_7.bChain = new BlockChain_Honest();
        obj_7.bChain.tr_count = trcount;
        return obj_7;
    }

    public static String printMember(Members m) {
        String s = "Member Name : ";
        s += m.UID + "\n Member Coins \n";
        for (Pair<String, TransactionBlock> p : m.mycoins) {
            s += p.first + " ";
        }
        s += "\n";
        return s;
    }

    public static String printBlock(TransactionBlock b) {
        String s = "Block Summary: ";
        s += b.trsummary + "\n Nonce ";
        if (b.nonce != null) {
            s += b.nonce + " \n dgst ";
        } else {
            s += "null \n dgst ";
        }
        if (b.dgst != null) {
            s += b.dgst + "\n";
        } else {
            s += "null \n";
        }
        return s;
    }

    public static String printBlockChain(BlockChain_Honest c) {
        String s = "Block Chain Honest \n ";
        TransactionBlock b = c.lastBlock;
        for (; b != null; b = b.previous) {
            s += printBlock(b) + "\n";
        }
        return s;
    }

    public static String printBlockChain(BlockChain_Malicious c) {
        String s = "Block Chain Malicious \n";
        List<TransactionBlock> l = new ArrayList<>();
        for (int i = 0; i < c.lastBlocksList.length; i++) {
            if (c.lastBlocksList[i] != null) {
                l.add(c.lastBlocksList[i]);
            }
        }
        for (int i = 1; i < l.size(); i++) {
            for (int j = i; j > 0 && l.get(j).trsummary.compareTo(l.get(j - 1).trsummary) <= 0; j--) {
                TransactionBlock temp = l.get(j);
                l.set(j, l.get(j - 1));
                l.set(j - 1, temp);
            }
        }
        for (int i = 0; i < l.size(); i++) {
            for (TransactionBlock b = l.get(i); b != null; b = b.previous) {
                s += printBlock(b) + "\n";
            }
        }
        return s;
    }

    public static String printDSObj(DSCoin_Honest o) {
        String s = "Honest Obj latest coin : ";
        s += o.latestCoinID + " \n Block Chain : \n";
        s += printBlockChain(o.bChain) + "memberlist \n";
        for (int i = 0; i < o.memberlist.length; i++) {
            s += printMember(o.memberlist[i]);
        }
        return s;
    }

    public static String printDSObj(DSCoin_Malicious o) {
        String s = "Pending Transactions : ";
        s += o.pendingTransactions.size() + "\n Malicious Obj latest coin : ";
        s += o.latestCoinID + " \n Block Chain : \n";
        s += printBlockChain(o.bChain) + "memberlist \n";
        for (int i = 0; i < o.memberlist.length; i++) {
            s += printMember(o.memberlist[i]);
        }
        return s;
    }

    public static String printLists(Pair<List<Pair<String, String>>, List<Pair<String, String>>> lists) {
        String s = "Lists: \n";
        for (int i = 0; i < lists.first.size(); i++) {
            s += lists.first.get(i).first + lists.first.get(i).second;
        }
        for (int i = 0; i < lists.second.size(); i++) {
            s += lists.second.get(i).first + lists.second.get(i).second;
        }
        return s;
    }

    public static DSCoin_Honest makeHonestObj(int memnum, int trcount) {
        DSCoin_Honest obj = new DSCoin_Honest();
        obj.pendingTransactions = new TransactionQueue();
        obj.memberlist = new Members[memnum];
        for (int i = 0; i < memnum; i++) {
            obj.memberlist[i] = new Members();
            obj.memberlist[i].UID = "Member " + Integer.toString(i);
            obj.memberlist[i].in_process_trans = new Transaction[100];
            obj.memberlist[i].mycoins = new ArrayList<>();

        }
        obj.bChain = new BlockChain_Honest();
        obj.bChain.tr_count = trcount;
        return obj;
    }
}