FastSitePHP | Encryption Demo

Key

Using this Page

This page allows you to encrypt text and decrypt encrypted text using FastSitePHP’s Encryption class.
Each time you refresh the page a new key will be generated.
Keys generated by this page are secure, will only be created once, and are not logged.
If a key is lost then encrypted data cannot be recovered, so make sure to save your key if you are using this page for critical data.
The text is encrypted and decrypted on the server with each button click; however both the key and text are not logged.
Encryption uses different random numbers each time data is encrypted which is why encrypting the same text with the same key generates different encrypted text on each button click.

Algorithm Overview

The Encryption Algorithm used on this page (and the default for FastSitePHP) is Advanced Encryption Standard (AES) with a 256-bit key using CBC mode. Authentication is performed with HMAC using SHA-256.
Half of the key (32 bytes / 256 bits) is used for encryption and the other half is used for authentication.
The encrypted text (ciphertext) contains only encryption and HMAC bytes; it does not contain any headers or magic numbers to associate it with the encryption method.

// The data to encrypt can be in the format of:
// [string, int, float, bool, array, object, and optionally null]
// and when decrypted the same data type and value is returned.
$crypto = new \FastSitePHP\Security\Crypto\Encryption();
$key = $crypto->generateKey();
$encrypted_text = $crypto->encrypt($data, $key);
$decrypted_data = $crypto->decrypt($encrypted_text, $key);

// Encrypt and Decrypt using a Password
$crypto->keyType('password');
$encrypted_text = $crypto->encrypt($data, $password);
$decrypted_data = $crypto->decrypt($encrypted_text, $password);