Add secure mail key in php code javascript

Here is an example of how you can add a secure mail key in PHP and JavaScript:

PHP Code:

<?php

// Set the secure mail key
$secureMailKey = 'your_secure_mail_key_here';

// Function to encrypt the mail key
function encryptMailKey($key) {
    $encryptedKey = openssl_encrypt($key, 'AES-256-CBC', 'your_secret_key_here', 0, 'your_initialization_vector_here');
    return $encryptedKey;
}

// Function to decrypt the mail key
function decryptMailKey($encryptedKey) {
    $decryptedKey = openssl_decrypt($encryptedKey, 'AES-256-CBC', 'your_secret_key_here', 0, 'your_initialization_vector_here');
    return $decryptedKey;
}

// Encrypt the mail key
$encryptedMailKey = encryptMailKey($secureMailKey);

// Store the encrypted mail key in a secure location (e.g. a database or a file)

?>

JavaScript Code:

// Get the encrypted mail key from the PHP script
var encryptedMailKey = '<?php echo $encryptedMailKey;?>';

// Function to decrypt the mail key
function decryptMailKey(encryptedKey) {
    var decryptedKey = CryptoJS.AES.decrypt(encryptedKey, 'your_secret_key_here', { iv: 'your_initialization_vector_here' });
    return decryptedKey.toString();
}

// Decrypt the mail key
var decryptedMailKey = decryptMailKey(encryptedMailKey);

// Use the decrypted mail key to send a secure email
//...

In this example, we use the OpenSSL library in PHP to encrypt the mail key using the AES-256-CBC algorithm. We then store the encrypted mail key in a secure location.

In the JavaScript code, we use the Crypto-JS library to decrypt the mail key using the same AES-256-CBC algorithm. We then use the decrypted mail key to send a secure email.

Important Notes: