Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
Alien Worlds Miner (v0.39.1)
async (_message) => {
const getRand = () => {
const arr = new Uint8Array(8);
for (let i=0; i < 8; i++){
const rand = Math.floor(Math.random() * 255);
arr[i] = rand;
}
return arr;
};
const toHex = (buffer) => {
return [...new Uint8Array (buffer)]
.map (b => b.toString (16).padStart (2, "0"))
.join ("");
};
let {mining_account, account, account_str, difficulty, last_mine_tx, last_mine_arr, sb} = _message.data;
account = account.slice(0, 8);
const is_wam = account_str.substr(-4) === '.wam';
let good = false, itr = 0, rand = 0, hash, hex_digest, rand_arr, last;
console.log(`Performing work with difficulty ${difficulty}, last tx is ${last_mine_tx}...`);
if (is_wam){
console.log(`Using WAM account`);
}
const start = (new Date()).getTime();
while (!good){
rand_arr = getRand();
const combined = new Uint8Array(account.length + last_mine_arr.length + rand_arr.length);
combined.set(account);
combined.set(last_mine_arr, account.length);
combined.set(rand_arr, account.length + last_mine_arr.length);
hash = await crypto.subtle.digest('SHA-256', combined.slice(0, 24));
hex_digest = toHex(hash);
if (is_wam){
good = hex_digest.substr(0, 4) === '0000';
}
else {
good = hex_digest.substr(0, 6) === '000000';
}
if (good){
if (is_wam){
last = parseInt(hex_digest.substr(4, 1), 16);
}
else {
last = parseInt(hex_digest.substr(6, 1), 16);
}
good &= (last <= difficulty);
}
itr++;
if (itr % 1000000 === 0){
console.log(`Still mining - tried ${itr} iterations`);
}
if (!good){
hash = null;
}
}
const end = (new Date()).getTime();
const rand_str = toHex(rand_arr);
console.log(`Found hash in ${itr} iterations with ${account} ${rand_str}, last = ${last}, hex_digest ${hex_digest} taking ${(end-start) / 1000}s`)
const mine_work = {account: account_str, rand_str, hex_digest};
this.postMessage(mine_work);
return mine_work;
}
@Srenko
Copy link

Srenko commented May 14, 2021

Hi, you don't have a new working version?

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment