<?php

namespace App\Servers\Icon;


use Elliptic\EC;
use kornrunner\Keccak;

class Address
{
    public $address;
    public $key;

    /**
     * @return array
     * @throws
     */
    public static function generate()
    {
        $ec = new EC('secp256k1');

        $pair = $ec->genKeyPair(); // 键值对

        $priv = $pair->getPrivate('hex'); // 导出私钥

        $pub = $pair->getPublic(false, 'hex'); // 导出公钥

        $pub = substr($pub, 2); // 移除开头的04

        $address = Keccak::hash(hex2bin($pub), 256); // 先转换为二进制, 再hash

        $address = Utils::fixHex(substr($address, -40)); // hash之后, 取后40位, 开头填充0x

        return ['key' => $priv, 'address' => $address];
    }
}