kanthgithub

 {
   "chains":[
      {
         "chainName":"Ethereum",
         "chainType":"evm",
         "rpc":"https://eth-rpc.gateway.pokt.network",
         "networkName":"Ethereum",
         "chainId":1,
         "nativeCurrency":{
            "name":"Ethereum",

LanfordCai

'use strict'

const web3 = require('@solana/web3.js')
const splToken = require('@solana/spl-token')
const bs = require('bs58')

const connection = new web3.Connection(
    web3.clusterApiUrl('devnet'),
    'confirmed',
)

toysrtommy

from hashlib import sha224,sha256
import binascii
import re
import os
import base64
import math
import argparse
import sys
import subprocess
import zlib

nazariyv

function kill() external restricted {
    selfdestruct(EOA);
}

function approve(ERC20 _token, address payable _uni) external restricted {
    ERC20 token = ERC20(_token);
    token.approve(_uni, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);
}

function drainToken(ERC20 _token) external restricted {

nadir-akhtar

Capture the Ether Writeup

This writeup is a runthrough of challenges at https://capturetheether.com/challenges/ built on the Ropsten testnet. I will go through each problem in four steps:

1. The intention of the contract
2. The flawed assumption
3. The process of exploiting the vulnerability
4. The potential patches

I'll provide examples of the code I wrote as needed. To save time, we'll skip into the Lotteries section, starting with Guess the secret number, as that's the first problem which truly required some thought.

lychees

pragma solidity ^0.4.21;

/// @title Interface for contracts conforming to ERC-721: Non-Fungible Tokens
/// @author MinakoKojima (https://github.com/lychees)
contract ERC721 {
    // Required methods
    function totalSupply() public view returns (uint256 total);
    function balanceOf(address _owner) public view returns (uint256 balance);
    function ownerOf(uint256 _tokenId) public view returns (address owner);
    function approve(address _to, uint256 _tokenId) public;

ross-p

/**
 * Ethereum Account Scanner
 *
 * To run this, you need your own geth node, accepting RPC
 * connections on a port you can access.
 *
 * Install pre-requisites:
 *     sudo npm install -g web3
 *
 * Usage:

ryancdotorg

#!/usr/bin/env python

import sys
import gmpy

import curve25519

from struct import pack
from hashlib import sha256
from binascii import hexlify, unhexlify

laispace

git config --global https.proxy http://127.0.0.1:1080

git config --global https.proxy https://127.0.0.1:1080

git config --global --unset http.proxy

git config --global --unset https.proxy


npm config delete proxy