BLS12-381 koolamusic

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Focusing

Hacking in Bash/Python/Rust/Golang/Soroban/Nodejs/Solidity by night, procrastinating UX Researcher by day

koolamusic / Scroll.jsx

Last active February 12, 2022 20:32

Horizontal Scroll

	const HorizontalScroll = styled.div`
	position: relative;
	overflow: hidden;
	--offset: 20vw;
	--move-initial: calc(-25% + var(--offset));
	--move-final: calc(-50% + var(--offset));

	div {
	width: fit-content;
	display: flex;

koolamusic / read-file.js

Last active December 30, 2021 22:53

Read File from browser using XMLHttpRequest

	function readTextFile(file) {
	var rawFile = new XMLHttpRequest();
	rawFile.open("GET", file, false);

	rawFile.onreadystatechange = function () {
	if(rawFile.readyState === 4) {

	if(rawFile.status === 200 \|\| rawFile.status == 0) {
	var allText = rawFile.responseText;
	doSomethingWithTheText(allText);

koolamusic / tonejs-demo.js

Last active December 23, 2021 02:41

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>Tonejs Demo</title>
	</head>
	<body>

	<!-- Learn music theory https://www.youtube.com/watch?v=rgaTLrZGlk0 -->

koolamusic / metamask-signature.html

Created December 21, 2021 05:50

retrieve the signature from metamask

	<!DOCTYPE html>
	<html>
	<head>
	<title>Get Public Key</title>
	</head>

	<body>
	<div style="margin-bottom:5px">Enable Metamask, then click on the sign button and sign with your wallet to get your public key</div>
	<div style="margin-bottom:5px"><button onclick="enableMM()">Enable Metamask</button></div>
	<div style="margin-bottom:20px"><button onclick="findPublicKey()">Sign</button></div>

koolamusic / delegate-sign.js

Created December 17, 2021 01:37 — forked from ajb413/delegate-sign.js

	const createDelegateBySigMessage = (compAddress, delegatee, expiry = 10e9, chainId = 1, nonce = 0) => {
	const types = {
	EIP712Domain: [
	{ name: 'name', type: 'string' },
	{ name: 'chainId', type: 'uint256' },
	{ name: 'verifyingContract', type: 'address' },
	],
	Delegation: [
	{ name: 'delegatee', type: 'address' },
	{ name: 'nonce', type: 'uint256' },

koolamusic / tile.js

Last active November 30, 2021 12:00

Memory Match Game

	// https://www.khanacademy.org/computing/computer-programming/programming-games-visualizations/memory-game/a/intro-to-memory

	var Tile = function(x, y, face) {
	this.x = x;
	this.y = y;
	this.size = 50;
	this.face = face;
	this.isFaceUp = false;
	this.isMatch = false;
	};

koolamusic / cipher.js

Created October 10, 2021 18:25

Pure Nodejs two-way cipher. also checkout https://github.com/paragonie/sodium-plus for a fast lib implementation of C-libsodium

	var crypto = require("crypto");
	var algorithm = "aes-192-cbc"; //algorithm to use
	var password = "Hello darkness";
	const key = crypto.scryptSync(password, 'salt', 24); //create key
	var text= "this is the text to be encrypted"; //text to be encrypted

	const iv = crypto.randomBytes(16); // generate different ciphertext everytime
	const cipher = crypto.createCipheriv(algorithm, key, iv);
	var encrypted = cipher.update(text, 'utf8', 'hex') + cipher.final('hex'); // encrypted text

koolamusic / wait_for_http_200.sh

Created September 24, 2021 16:04 — forked from rgl/wait_for_http_200.sh

Wait for an HTTP endpoint to return 200 OK with Bash and curl

	bash -c 'while [[ "$(curl -s -o /dev/null -w ''%{http_code}'' localhost:9000)" != "200" ]]; do sleep 5; done'

	# also check https://gist.github.com/rgl/c2ba64b7e2a5a04d1eb65983995dce76

koolamusic / authWrapper.js

Created August 27, 2021 17:07

Middleware and context example Nextjs

	// Adapted from: https://betterprogramming.pub/why-i-got-rid-of-getinitialprops-in-my-next-js-project-fc926e98ed61

	export function authWrapper(next) {
	return async function auth(ctx) {
	const user = await session.getUser();

	if (!user) {
	return {
	redirect: {
	destination: '/sign-in',

koolamusic / README.md

Created August 27, 2021 10:10

Pixel Art with Data Pixels