danfinlay’s gists

danfinlay / different_sig_verification.js

Created July 20, 2017 00:20

Another approach to verifying an eth.sign call. I need a test suite on this.

	var ethUtil = require('ethereumjs-util')

	var address = '0x1dba1131000664b884a1ba238464159892252d3a'
	var msg = 'https://www.reddit.com/r/ethereum/comments/6obofq/a_modified_version_of_a_common_multisig_had_a/'
	var claimed = '0xe7bf6c80979b6633dc9bdc7ae556f40ceb43eee2ba8b2a7deaf9b838dd8b21d46858b62b0b01b257f7194de03366f09aa89115717f8860b4620d8a6c92cbeec71c'

	const msgHash = ethUtil.hashPersonalMessage(new Buffer(msg))
	const sigParams = ethUtil.fromRpcSig(claimed)
	const publicKey = ethUtil.ecrecover(msgHash, sigParams.v, sigParams.r, sigParams.s)

danfinlay / check_claim.js

Last active July 20, 2017 00:10

Checking reddit user's claim of being the Parity wallet white hat.

	var ethUtil = require('ethereumjs-util')

	var address = '0x1dba1131000664b884a1ba238464159892252d3a'
	var msg = 'https://www.reddit.com/r/ethereum/comments/6obofq/a_modified_version_of_a_common_multisig_had_a/'
	var claimed = '0xe7bf6c80979b6633dc9bdc7ae556f40ceb43eee2ba8b2a7deaf9b838dd8b21d46858b62b0b01b257f7194de03366f09aa89115717f8860b4620d8a6c92cbeec71c'

	const msgHash = ethUtil.hashPersonalMessage(new Buffer(msg))
	const sigParams = ethUtil.fromRpcSig(claimed)
	const publicKey = ethUtil.ecrecover(msgHash, sigParams.v, sigParams.r, sigParams.s)

danfinlay / baeraer

Created April 27, 2017 22:56

aerarar

0xFDEa65C8e26263F6d9A1B5de9555D2931A33b825

danfinlay / an-address.txt

Created April 25, 2017 21:34

rinkeby faucet gist

0xF61807b9488374c44a8fE022273855B5fA7E61f3

danfinlay / GHRegistry.txt

Created March 22, 2017 03:06

An attestation of my ethereum address

	flyswatter
	0x55e2780588aa5000F464f700D2676fD0a22Ee160

danfinlay / transaction-polling.js

Last active January 29, 2017 01:48

Simple example of sending a token with ethjs and polling for receipt.

	var Eth = require('ethjs')
	var tokenAbi = require('human-standard-token-abi')
	var tokenAddress = '0x48ff0cbac0acefedf152281ee80e9a0a01d5da63'
	var secondAddress = '0xC5b8dBAc4c1d3F152cDeb400E2313F309c410aCb'
	var eth, token

	window.addEventListener('load', function() {
	if (typeof window.web3 !== undefined) {
	eth = new Eth(web3.currentProvider)
	// Now enjoy! Use it!

danfinlay / ethjs-token-example.js

Last active July 28, 2017 06:32

ethjs token example

	var Eth = require('ethjs')
	var tokenAbi = require('human-standard-token-abi')
	var tokenAddress = '0x48ff0cbac0acefedf152281ee80e9a0a01d5da63'
	var secondAddress = '0xC5b8dBAc4c1d3F152cDeb400E2313F309c410aCb'
	var eth, token

	window.addEventListener('load', function() {
	if (typeof window.web3 !== 'undefined') {
	eth = new Eth(web3.currentProvider)
	// Now enjoy! Use it!

danfinlay / guitardino.ino

Last active January 20, 2017 01:06

Guitarduino Basic Analog

	#include <toneAC.h>

	const int stringInput = A4; // The input pin for the string-like soft pot.
	int stringValue = 0; // variable to store the value coming from the sensor

	const int pickX = A1; // The input pin for the joystick's X axis.
	int pickXCenter = 0;
	int pickXValue = 0; // The value of the joystick's X axis.

	const int pickY = A2; // Same as above, but for Y.

danfinlay / Arduino-Print-Analog-to-Console.ino

Last active January 13, 2017 21:12

Arduino-Print-Analog-to-Console

	/*
	Analog Input
	Demonstrates analog input by reading an analog sensor on analog pin 0 and
	turning on and off a light emitting diode(LED) connected to digital pin 13.
	The amount of time the LED will be on and off depends on
	the value obtained by analogRead().

	The circuit:
	* Potentiometer attached to analog input 0
	* center pin of the potentiometer to the analog pin

danfinlay / contract-error.json

Created December 21, 2016 00:22

metamask browser-solidity compilation error bug

	{
	"metamask": {
	"isInitialized": true,
	"isUnlocked": true,
	"rpcTarget": "https://rawtestrpc.metamask.io/",
	"identities": {
	"0xac39b311dceb2a4b2f5d8461c1cdaf756f4f7ae9": {
	"address": "0xac39b311dceb2a4b2f5d8461c1cdaf756f4f7ae9",
	"name": "Account 1"
	},

Dan Finlay danfinlay