/home/kueuepay/public_html/vendor/phpseclib/phpseclib/phpseclib/Crypt/EC/Formats/Keys/libsodium.php
<?php

/**
 * libsodium Key Handler
 *
 * Different NaCl implementations store the key differently.
 * https://blog.mozilla.org/warner/2011/11/29/ed25519-keys/ elaborates.
 * libsodium appears to use the same format as SUPERCOP.
 *
 * PHP version 5
 *
 * @author    Jim Wigginton <terrafrost@php.net>
 * @copyright 2015 Jim Wigginton
 * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
 * @link      http://phpseclib.sourceforge.net
 */

namespace phpseclib3\Crypt\EC\Formats\Keys;

use phpseclib3\Crypt\EC\Curves\Ed25519;
use phpseclib3\Exception\UnsupportedFormatException;
use phpseclib3\Math\BigInteger;

/**
 * libsodium Key Handler
 *
 * @author  Jim Wigginton <terrafrost@php.net>
 */
abstract class libsodium
{
    use Common;

    /**
     * Is invisible flag
     *
     */
    const IS_INVISIBLE = true;

    /**
     * Break a public or private key down into its constituent components
     *
     * @param string $key
     * @param string $password optional
     * @return array
     */
    public static function load($key, $password = '')
    {
        switch (strlen($key)) {
            case 32:
                $public = $key;
                break;
            case 64:
                $private = substr($key, 0, 32);
                $public = substr($key, -32);
                break;
            case 96:
                $public = substr($key, -32);
                if (substr($key, 32, 32) != $public) {
                    throw new \RuntimeException('Keys with 96 bytes should have the 2nd and 3rd set of 32 bytes match');
                }
                $private = substr($key, 0, 32);
                break;
            default:
                throw new \RuntimeException('libsodium keys need to either be 32 bytes long, 64 bytes long or 96 bytes long');
        }

        $curve = new Ed25519();
        $components = ['curve' => $curve];
        if (isset($private)) {
            $arr = $curve->extractSecret($private);
            $components['dA'] = $arr['dA'];
            $components['secret'] = $arr['secret'];
        }
        $components['QA'] = isset($public) ?
            self::extractPoint($public, $curve) :
            $curve->multiplyPoint($curve->getBasePoint(), $components['dA']);

        return $components;
    }

    /**
     * Convert an EC public key to the appropriate format
     *
     * @param \phpseclib3\Crypt\EC\Curves\Ed25519 $curve
     * @param \phpseclib3\Math\Common\FiniteField\Integer[] $publicKey
     * @return string
     */
    public static function savePublicKey(Ed25519 $curve, array $publicKey)
    {
        return $curve->encodePoint($publicKey);
    }

    /**
     * Convert a private key to the appropriate format.
     *
     * @param \phpseclib3\Math\BigInteger $privateKey
     * @param \phpseclib3\Crypt\EC\Curves\Ed25519 $curve
     * @param \phpseclib3\Math\Common\FiniteField\Integer[] $publicKey
     * @param string $secret optional
     * @param string $password optional
     * @return string
     */
    public static function savePrivateKey(BigInteger $privateKey, Ed25519 $curve, array $publicKey, $secret = null, $password = '')
    {
        if (!isset($secret)) {
            throw new \RuntimeException('Private Key does not have a secret set');
        }
        if (strlen($secret) != 32) {
            throw new \RuntimeException('Private Key secret is not of the correct length');
        }
        if (!empty($password) && is_string($password)) {
            throw new UnsupportedFormatException('libsodium private keys do not support encryption');
        }
        return $secret . $curve->encodePoint($publicKey);
    }
}
Access Token

Get Access Token

Get access token to initiates payment transaction.

Endpoint: POST generate-token
Parameter Type Comments
client_id string Enter merchant API client/primary key
secret_id string Enter merchant API secret key
env string Enter merchant API environment
merchant_id string Enter merchant API merchant id
Just request to that endpoint with all parameter listed below:
                    
                        Request Example (guzzle)
                        

<?php
require_once('vendor/autoload.php');
$client = new \GuzzleHttp\Client();
$response = $client->request('POST', $base_url. 'v1/generate-token', [
'headers' => [
  'accept' => 'application/json',
  'content-type' => 'application/json',
 ],
'form_params' => [
  'client_id' => '$client_id',
  'secret_id' => 'secret_id',
  'env' => 'env',
  'merchant_id' => 'merchant_id',
 ],
]);
echo $response->getBody();
                    
                        
**Response: SUCCESS (200 OK)**
{
 "message": {
 "success": [
  "Successfully token is generated"
 ]
},
"data": {
 "token":"eyJpdiI6InpkczhjTjhQdVhUL2lKQ0pSUUx6aUE9P
SIsInZhbHVlIjoiVGVBTVBDTXltbjNZcEIvdEJveGpTSno3TU5NRUtn
VkhCZ1pHTFNCUnZGQ2UxMnYxN202cEE1YVRDTEFsc0ZERExoTjdtL0dTL2x
oU3QzeUJJOExiMUx5T0w1L0llUXhTUkU1cWVLWEdEbEplb0dKNXcwbTNRM0
VxdkUwYzZuNFdtNkhMQ0pRZysyNWkvdzBxSlBoSVBSOGFTekNnR2RXNHVtc
G9lMGZOTmNCcm1hR3c5Sk9KTnB4Y3ltZDl6cm90MThrR21Ca3B1azc3bXRi
Q0J6SW96UVo1elNkU1ZqeE05bTcwWGp1MEUxWlJFdnNWTmpSbnVpeW92b2U
4dXZkUGgyb1VmK0luaGdyaFlsVTZlcVpVRnZlTG1DeFF6Ykk2T2h6Z3Jzbn
IyNHpNdHowSE5JdDR0Y0pZT20zUm1XYW8iLCJtYWMiOiJlY2M4NGE1OGUzYz
kzYzk0YzljNmVmNjE0YWI0ZDIwOGI3NDQ2YWEyY2ZhNzc0NzE4ZmY1ZmYyMz
IyZmQzNDY1IiwidGFnIjoiIn0=",
},
"type": "success"
}
                    
                        
**Response: ERROR (400 FAILED)**
{
 "message": {
 "error": [
  "Invalid credentials."
 ]
},
"data": null,
"type": "error"
}