PHP code example of famoser / elliptic

1. Go to this page and download the library: Download famoser/elliptic library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php.

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

famoser / elliptic example snippets


// get curves from SEC, brainpool and bernstein
$repository = new CurveRepository();
$curve = $repository->findByName('secp256r1');

// hardened (against side-channels) math for most curves
$mathFactory = new MathFactory($repository);
$math = $mathFactory->createHardenedMath($curve);

// can do double, add and mul
$G2 = $math->double($curve->getG());
$G3 = $math->add($curve->getG(), $G2);
$GA = $math->mul($curve->getG(), gmp_init(3));
if ($G3->equals($GA)) { echo "success"; }