A test that use Php-Encryption and exchange keys by Curve25519

Php-Encryption_Curve25519_Test.php

<?php
/* 
* For testing you will need the following packages:
* 
* 	 - paragonie/random_compat
*
*        - defuse/php-encryption
*
*        - leigh/curve25519
*/
require 'vendor/autoload.php';

require_once('defuse-crypto.phar'); // Use this version to stop EnvironmentIsBrokenException

use Defuse\Crypto\Key;
use Defuse\Crypto\Crypto;
use Defuse\Crypto\Encoding;

// -----------------
// Aziz Server
// -----------------

$AzizPrivateKey = Key::createNewRandomKey();
$AzizPublicKey = urlencode(base64_encode(\Curve25519\publicKey($AzizPrivateKey->getRawBytes())));

// -----------------
// Bob Server
// -----------------

$BobPrivateKey = Key::createNewRandomKey();
$BobPublicKey = urlencode(base64_encode(\Curve25519\publicKey($BobPrivateKey->getRawBytes())));

/************************/
// Exchange Public Keys
/************************/

$AzizSharedKey = Key::loadFromAsciiSafeString(Encoding::saveBytesToChecksummedAsciiSafeString(
	Key::KEY_CURRENT_VERSION,
	\Curve25519\sharedKey($AzizPrivateKey->getRawBytes(), base64_decode(urldecode($BobPublicKey)))
));

$BobSharedKey = Key::loadFromAsciiSafeString(Encoding::saveBytesToChecksummedAsciiSafeString(
	Key::KEY_CURRENT_VERSION,
	\Curve25519\sharedKey($BobPrivateKey->getRawBytes(), base64_decode(urldecode($AzizPublicKey)))
));

echo "<h3>Test hash_equals:</h3>"; /// PASSED
var_dump(\hash_equals($AzizSharedKey->getRawBytes(), $BobSharedKey->getRawbytes()));


/****************************/
// Encrypt by AzizSharedKey
/***************************/

echo "<hr/><h3>Test Encrypt by AzizSharedKey:</h3>";

$original_text = "Salam, Hello & Salam ... Fellow Human beings. We are finally together. :)";

echo "<h4>original_text: $original_text</h4>";

// 
$encrypted_text = Crypto::encrypt($original_text, $AzizSharedKey);

echo "<h4>encrypted_text: $encrypted_text</h4>";

/****************************/
// Decrypt by BobSharedKey
/***************************/

echo "<hr/><h3>Test Decrypt by BobSharedKey:</h3>";
$decrypted_text = Crypto::decrypt($encrypted_text, $BobSharedKey);
echo "<h4>decrypted_text: $decrypted_text</h4>";