raksa/php<=>js RSA.php

## php<=>js RSA.php
<?php
require_once 'vendor/autoload.php';
// composer require phpseclib/phpseclib
use phpseclib\Crypt\RSA;

function getFileContent($filePath = '')
{
    try {
        if (\file_exists($filePath)) {
            $file = \fopen($filePath, "r");
            $content = '';
            while (!\feof($file)) {
                $content .= \fgets($file);
            }
            \fclose($file);
            return $content;
        }
    } catch (\Exception $e) {
        \Log::info('Getting file content path: ' . $filePath);
        \Log::error($e);
    }
    return null;
}
function putFileContent($filePath = '', $content = '')
{
    try {
        return !!\file_put_contents($filePath, $content);
    } catch (\Exception $e) {}
    return false;
}
$keyPath = __DIR__ . DIRECTORY_SEPARATOR . 'keys' . DIRECTORY_SEPARATOR;
$privateKeyPath = $keyPath . 'asymmetric-cipher.pem';
$publicKeyPath = $keyPath . 'asymmetric-cipher.pub';
if (!($privateKey = getFileContent($privateKeyPath)) || !($publicKey = getFileContent($publicKeyPath))) {
    $rsa = new \phpseclib\Crypt\RSA();
    $keys = $rsa->createKey();
    $privateKey = $keys['privatekey'];
    $publicKey = $keys['publickey'];
    putFileContent($privateKeyPath, $privateKey);
    putFileContent($publicKeyPath, $publicKey);
}

function userPHPEncrypt($plainText)
{
    global $publicKey;
    \openssl_public_encrypt($plainText, $encryptedText, $publicKey);
    return \base64_encode($encryptedText);
}
function userPHPDecrypt($encryptedText)
{
    global $privateKey;
    $decrypted = null;
    \openssl_private_decrypt(\base64_decode($encryptedText), $decrypted, $privateKey);
    return $decrypted;
}
$plainText = 'hello world';
?>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Cipher</title>
    <!-- http://travistidwell.com/jsencrypt/ -->
    <script src="/jsencrypt-master/bin/jsencrypt.js"></script>
</head>

<body>
    <div>
    PHP encrypt : <?php echo userPHPEncrypt($plainText); ?>
    Test : <?php echo userPHPDecrypt(userPHPEncrypt($plainText)) === $plainText ? 'it work!' : 'something went wrong'; ?>
    </div>
    <div>
        <form method="POST" enctype="multipart/form-data">
            <label for="input-private-key">PrivateKey : </label>
            <textarea type="text" id="input-private-key" style="width:400px;height:200px;">
            <?php echo $privateKey ?>
            </textarea>
            <br>
            <label for="input-public-key">PublicKey : </label>
            <textarea type="text" id="input-public-key" style="width:400px;height:200px;"></textarea>
            <br>
            <label for="input-encrypted">Encrypted : </label>
            <textarea type="text" name="encrypted" id="input-encrypted" style="width:400px;height:200px;"></textarea>
            <br>
            <button type="submit">Submit</button>
        </form>
        <div>
<?php
if (!empty($_POST) && isset($_POST["encrypted"])) {
    echo 'PHP Decode :';
    echo userPHPDecrypt($_POST["encrypted"]);
}
?>
        </div>
    </div>
    <script type="text/javascript">
        var plainText = '<?php echo $plainText ?>';
        var publicKey = `<?php echo $publicKey ?>`;
        function userJSEncrypt(text){
            var crypt = new JSEncrypt();
            crypt.setPublicKey(publicKey);
            return crypt.encrypt(text);
        }

        document.getElementById('input-public-key').value = publicKey;
        document.getElementById('input-encrypted').value = userJSEncrypt(plainText);

    </script>
</body>

</html>
	<?php
	require_once 'vendor/autoload.php';
	// composer require phpseclib/phpseclib
	use phpseclib\Crypt\RSA;

	function getFileContent($filePath = '')
	{
	try {
	if (\file_exists($filePath)) {
	$file = \fopen($filePath, "r");
	$content = '';
	while (!\feof($file)) {
	$content .= \fgets($file);
	}
	\fclose($file);
	return $content;
	}
	} catch (\Exception $e) {
	\Log::info('Getting file content path: ' . $filePath);
	\Log::error($e);
	}
	return null;
	}
	function putFileContent($filePath = '', $content = '')
	{
	try {
	return !!\file_put_contents($filePath, $content);
	} catch (\Exception $e) {}
	return false;
	}
	$keyPath = __DIR__ . DIRECTORY_SEPARATOR . 'keys' . DIRECTORY_SEPARATOR;
	$privateKeyPath = $keyPath . 'asymmetric-cipher.pem';
	$publicKeyPath = $keyPath . 'asymmetric-cipher.pub';
	if (!($privateKey = getFileContent($privateKeyPath)) \|\| !($publicKey = getFileContent($publicKeyPath))) {
	$rsa = new \phpseclib\Crypt\RSA();
	$keys = $rsa->createKey();
	$privateKey = $keys['privatekey'];
	$publicKey = $keys['publickey'];
	putFileContent($privateKeyPath, $privateKey);
	putFileContent($publicKeyPath, $publicKey);
	}

	function userPHPEncrypt($plainText)
	{
	global $publicKey;
	\openssl_public_encrypt($plainText, $encryptedText, $publicKey);
	return \base64_encode($encryptedText);
	}
	function userPHPDecrypt($encryptedText)
	{
	global $privateKey;
	$decrypted = null;
	\openssl_private_decrypt(\base64_decode($encryptedText), $decrypted, $privateKey);
	return $decrypted;
	}
	$plainText = 'hello world';
	?>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Cipher</title>
	<!-- http://travistidwell.com/jsencrypt/ -->
	<script src="/jsencrypt-master/bin/jsencrypt.js"></script>
	</head>

	<body>
	<div>
	PHP encrypt : <?php echo userPHPEncrypt($plainText); ?>
	Test : <?php echo userPHPDecrypt(userPHPEncrypt($plainText)) === $plainText ? 'it work!' : 'something went wrong'; ?>
	</div>
	<div>
	<form method="POST" enctype="multipart/form-data">
	<label for="input-private-key">PrivateKey : </label>
	<textarea type="text" id="input-private-key" style="width:400px;height:200px;">
	<?php echo $privateKey ?>
	</textarea>
	<br>
	<label for="input-public-key">PublicKey : </label>
	<textarea type="text" id="input-public-key" style="width:400px;height:200px;"></textarea>
	<br>
	<label for="input-encrypted">Encrypted : </label>
	<textarea type="text" name="encrypted" id="input-encrypted" style="width:400px;height:200px;"></textarea>
	<br>
	<button type="submit">Submit</button>
	</form>
	<div>
	<?php
	if (!empty($_POST) && isset($_POST["encrypted"])) {
	echo 'PHP Decode :';
	echo userPHPDecrypt($_POST["encrypted"]);
	}
	?>
	</div>
	</div>
	<script type="text/javascript">
	var plainText = '<?php echo $plainText ?>';
	var publicKey = `<?php echo $publicKey ?>`;
	function userJSEncrypt(text){
	var crypt = new JSEncrypt();
	crypt.setPublicKey(publicKey);
	return crypt.encrypt(text);
	}

	document.getElementById('input-public-key').value = publicKey;
	document.getElementById('input-encrypted').value = userJSEncrypt(plainText);

	</script>
	</body>

	</html>