PHP Luminova: Examples of Data Encryption and Decryption

Last updated: 2024-08-28 22:50:17

Crypter

Before using Luminova's Crypter, ensure that your application key is properly configured in the environment file app.key.It is recommended to utilize the php novakit generate:key command for generating a new key when necessary.By default, an application key is generated during the installation of Luminova.

Furthermore, you can configure additional optional settings in /app/Config/Encryption.php, such as the encryption handler class, encryption mode, hash digest, etc.

Encrypting

This section describes how to encrypt data using the Crypter class.

<?php
use \Luminova\Security\Crypter;
use \Luminova\Exceptions\EncryptionException;
use PHPUnit\TextUI\XmlConfiguration\CodeCoverage\Report\Php;

/**
 * Store a User token.
 */
public function addToken(): void
{
    try{
        $id = escape($this->request->getPost('user_id'));
        $tbl =  $this->query->table('user_tokens');
        $tbl->insert([
            'user_id' => $id,
            'token' => Crypter::encrypt($this->request->getPost('token')),
        ]);

        response(200)->json(['status' => 'ok']);
    }catch(EncryptionException $e){
        // ...
    }
}

Decrypting

This section describes how to decrypt data using the Crypter class.

<?php
/**
 * Retrieve a User token.
 */
public function useToken(): void
{
    try{
        $id = escape($this->request->getPost('user_id'));
        $tbl =  $this->query->table('user_tokens');
        $tbl->where('user_id', '=', $id);
        $encrypted = $tbl->find(['token']);

        $token = Crypter::decrypt($encrypted);

        response(200)->json(['status' => 'ok', 'token' => $token]);
    }catch(EncryptionException $e){
        // ...
    }
}

Single Encryption Class Usage

If you're looking to encrypt data in your applications, you have the option to choose between two encryption classes provided by the Luminova framework: OpenSSL and Sodium.These classes offer different approaches to encryption, each with its own strengths and benefits. Let's take a closer look at how you can use OpenSSL and Sodium effectively for securing your sensitive data.

OpenSSL

The OpenSSL class provides methods for encrypting and decrypting data using OpenSSL encryption.

use \Luminova\Security\Encryption\OpenSSL;

// Initialize the encryption key and message
$key = "my-encryption-key";
$message = "hello this is awesome secret";

// Create an instance of OpenSSL
$crypt = new OpenSSL($key);

// Set a nonce (initialization vector)
$crypt->setNonce();

// Set the data to be encrypted
$crypt->setData($message);

// Encrypt the data
$encrypted = $crypt->encrypt();

// Output the encrypted message
echo "Encrypted message: " . $encrypted;

// Decrypt the encrypted message
$crypt->setKey($key); // Set the key for decryption
$crypt->setData($encrypted); // Set the encrypted data
echo "Decrypted message: " . $crypt->decrypt();

Sodium

The Sodium class provides methods for encrypting and decrypting data using Sodium encryption.

use \Luminova\Security\Encryption\Sodium;

// Initialize the encryption key and message
$key = "my-encryption-key";
$message = "hello this is awesome secret";

// Create an instance of Sodium
$crypt = new Sodium($key);

// Set a nonce (initialization vector)
$crypt->setNonce();

// Set the data to be encrypted
$crypt->setData($message);

// Encrypt the data
$encrypted = $crypt->encrypt();

// Output the encrypted message
echo "Encrypted message: " . $encrypted;

// Decrypt the encrypted message
$crypt->setKey($key); // Set the key for decryption
$crypt->setData($encrypted); // Set the encrypted data
echo "Decrypted message: " . $crypt->decrypt();

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