<?php

/**
 * PKCS#8 Formatted DH Key Handler
 *
 * PHP version 5
 *
 * Processes keys with the following headers:
 *
 * -----BEGIN ENCRYPTED PRIVATE KEY-----
 * -----BEGIN PRIVATE KEY-----
 * -----BEGIN PUBLIC KEY-----
 *
 * @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\DH\Formats\Keys;

use phpseclib3\Crypt\Common\Formats\Keys\PKCS8 as Progenitor;
use phpseclib3\File\ASN1;
use phpseclib3\File\ASN1\Maps;
use phpseclib3\Math\BigInteger;

/**
 * PKCS#8 Formatted DH Key Handler
 *
 * @author  Jim Wigginton <terrafrost@php.net>
 */
abstract class PKCS8 extends Progenitor
{
    /**
     * OID Name
     *
     * @var string
     */
    const OID_NAME = 'dhKeyAgreement';

    /**
     * OID Value
     *
     * @var string
     */
    const OID_VALUE = '1.2.840.113549.1.3.1';

    /**
     * Child OIDs loaded
     *
     * @var bool
     */
    protected static $childOIDsLoaded = false;

    /**
     * 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 = '')
    {
        $key = parent::load($key, $password);

        $type = isset($key['privateKey']) ? 'privateKey' : 'publicKey';

        $decoded = ASN1::decodeBER($key[$type . 'Algorithm']['parameters']->element);
        if (empty($decoded)) {
            throw new \RuntimeException('Unable to decode BER of parameters');
        }
        $components = ASN1::asn1map($decoded[0], Maps\DHParameter::MAP);
        if (!is_array($components)) {
            throw new \RuntimeException('Unable to perform ASN1 mapping on parameters');
        }

        $decoded = ASN1::decodeBER($key[$type]);
        switch (true) {
            case !isset($decoded):
            case !isset($decoded[0]['content']):
            case !$decoded[0]['content'] instanceof BigInteger:
                throw new \RuntimeException('Unable to decode BER of parameters');
        }
        $components[$type] = $decoded[0]['content'];

        return $components;
    }

    /**
     * Convert a private key to the appropriate format.
     *
     * @param \phpseclib3\Math\BigInteger $prime
     * @param \phpseclib3\Math\BigInteger $base
     * @param \phpseclib3\Math\BigInteger $privateKey
     * @param \phpseclib3\Math\BigInteger $publicKey
     * @param string $password optional
     * @param array $options optional
     * @return string
     */
    public static function savePrivateKey(BigInteger $prime, BigInteger $base, BigInteger $privateKey, BigInteger $publicKey, $password = '', array $options = [])
    {
        $params = [
            'prime' => $prime,
            'base' => $base
        ];
        $params = ASN1::encodeDER($params, Maps\DHParameter::MAP);
        $params = new ASN1\Element($params);
        $key = ASN1::encodeDER($privateKey, ['type' => ASN1::TYPE_INTEGER]);
        return self::wrapPrivateKey($key, [], $params, $password, null, '', $options);
    }

    /**
     * Convert a public key to the appropriate format
     *
     * @param \phpseclib3\Math\BigInteger $prime
     * @param \phpseclib3\Math\BigInteger $base
     * @param \phpseclib3\Math\BigInteger $publicKey
     * @param array $options optional
     * @return string
     */
    public static function savePublicKey(BigInteger $prime, BigInteger $base, BigInteger $publicKey, array $options = [])
    {
        $params = [
            'prime' => $prime,
            'base' => $base
        ];
        $params = ASN1::encodeDER($params, Maps\DHParameter::MAP);
        $params = new ASN1\Element($params);
        $key = ASN1::encodeDER($publicKey, ['type' => ASN1::TYPE_INTEGER]);
        return self::wrapPublicKey($key, $params);
    }
}

• [F] PKCS1.php
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• [F] PKCS8.php
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                        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"
                        
}