PHP code example of kornrunner / secp256k1

1. Go to this page and download the library: Download kornrunner/secp256k1 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/ */

kornrunner / secp256k1 example snippets




ornrunner\Secp256k1;
use kornrunner\Serializer\HexSignatureSerializer;

$secp256k1 = new Secp256k1();

// return signature contains r, s and recovery param (v).
// message and privateKey are hex strings
$signature = $secp256k1->sign($message, $privateKey);

// get r
$r = $signature->getR();

// get s
$s = $signature->getS();

// get recovery param
$v = $signature->getRecoveryParam();

// encode to hex
$serializer = new HexSignatureSerializer();
$signatureString = $serializer->serialize($signature);

// or you can call toHex
$signatureString = $signature->toHex();




ornrunner\Secp256k1;

$secp256k1 = new Secp256k1();

// signature was created by sign method
// hash and publicKey are hex strings
$isVerified = $secp256k1->verify($hash, $signature, $publicKey);