vasa-develop

//if something breaks, go to this file: https://github.com/jpmorganchase/quorum-examples/blob/master/vagrant/bootstrap.sh

# install build deps
sudo add-apt-repository ppa:ethereum/ethereum
sudo apt-get update
sudo apt install make
sudo apt install g++ -y
sudo apt-get install -y build-essential unzip libdb-dev libleveldb-dev libsodium-dev zlib1g-dev libtinfo-dev solc sysvbanner wrk software-properties-common default-jdk maven

//installing go

vasa-develop

pragma solidity ^0.4.19;

contract Account{
    /* struct account{
        string pubKey;
        string priKey;
    } */
    
    struct account_user{
        string pubKey;

vasa-develop

var a = eth.accounts[0]
web3.eth.defaultAccount = a;

// abi and bytecode generated from simplestorage.sol:
// > solcjs --bin --abi simplestorage.sol
var abi = <ABI>;



var Contract = web3.eth.contract(abi);

vasa-develop

//install ipfs-cluster

cd $HOME
wget https://dist.ipfs.io/go-ipfs/v0.4.14-rc1/go-ipfs_v0.4.14-rc1_linux-amd64.tar.gz
tar xf go-ipfs_v0.4.14-rc1_linux-amd64.tar.gz
sudo mv go-ipfs/ipfs /usr/local/bin/ipfs
ipfs init

//installing go
cd $HOME/ && wget https://storage.googleapis.com/golang/go1.10.1.linux-amd64.tar.gz

vasa-develop

pragma solidity ^0.4.19;

import "./Seriality.sol";

contract Serialize is Seriality{
	string [] arr = ["string0", "string1", "string2", "string3", "string4"];

	function getBytes(uint startindex, uint endindex) public view returns(bytes serialized){

        require(endindex >= startindex);

vasa-develop

var hexStringFromSolidity = "<PASTE THE SOLIDTY BYTE OUTPUT HERE>"

var convert = function hexToStr(hex) {
	var str = '';
	for (var i = 0; i < hex.length; i += 2) {
	   var v = parseInt(hex.substr(i, 2), 16);
	   if (v) str += String.fromCharCode(v);
	}

  	params = [];

vasa-develop

{
   "config": {
      "chainId": 1994,
      "homesteadBlock": 0,
      "eip155Block": 0,
      "eip158Block": 0,
      "byzantiumBlock": 0
   },
   "difficulty": "0x0",
   "gasLimit": "0x8000000",

vasa-develop

contract EtherStore {
    uint256 public withdrawalLimit = 1 ether;
    mapping(address => uint256) public lastWithdrawTime;
    mapping(address => uint256) public balances;
    
    function depositFunds() public payable {
        balances[msg.sender] += msg.value;
    }
    
    function withdrawFunds (uint256 _weiToWithdraw) public {

vasa-develop

import "EtherStore.sol";
contract Attack {
  EtherStore public etherStore;
  // intialise the etherStore variable with the contract address
  constructor(address _etherStoreAddress) {
      etherStore = EtherStore(_etherStoreAddress);
  }
  
  function pwnEtherStore() public payable {
      // attack to the nearest ether

vasa-develop

contract EtherStore {
    // initialise the mutex
    bool reEntrancyMutex = false;
    uint256 public withdrawalLimit = 1 ether;
    mapping(address => uint256) public lastWithdrawTime;
    mapping(address => uint256) public balances;
    
    function depositFunds() public payable {
        balances[msg.sender] += msg.value;
    }