PHP code example of paragonie / pqcrypto_compat

1. Go to this page and download the library: Download paragonie/pqcrypto_compat library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

paragonie / pqcrypto_compat example snippets



declare(strict_types=1);
use ParagonIE\PQCrypto\Compat;

// Key generation
[$decapsKey, $encapsKey] = Compat::xwing_keygen();

// Encapsulation
['sharedKey' => $ss, 'ciphertext' => $ct] = Compat::xwing_encaps($encapsKey);

// Decapsulation
$sharedKey = Compat::xwing_decaps($decapsKey, $ct);
var_dump(hash_equals($ss, $sharedKey)); // bool(true)



declare(strict_types=1);
use ParagonIE\PQCrypto\Compat;

// Key generation
[$decapsKey, $encapsKey] = Compat::mlkem768_keygen();
$decapsKeyBytes = $decapsKey->bytes();
$encapsKeyBytes = $encapsKey->bytes();

// Encapsulation
['sharedKey' => $ss, 'ciphertext' => $ct] = Compat::mlkem768_encaps($encapsKey);
// Send $ct to recipient that possesses $decapsKey

$sharedKey = Compat::mlkem768_decaps($decapsKey, $ct);
var_dump(hash_equals($ss, $sharedKey)); // bool(true)



declare(strict_types=1);
use ParagonIE\PQCrypto\Compat;

// Key generation
[$decapsKey, $encapsKey] = Compat::mlkem1024_keygen();
$decapsKeyBytes = $decapsKey->bytes();
$encapsKeyBytes = $encapsKey->bytes();

// Encapsulation
['sharedKey' => $ss, 'ciphertext' => $ct] = Compat::mlkem1024_encaps($encapsKey);
// Send $ct to recipient that possesses $decapsKey

$sharedKey = Compat::mlkem768_decaps($decapsKey, $ct);
var_dump(hash_equals($ss, $sharedKey)); // bool(true)



declare(strict_types=1);
use ParagonIE\PQCrypto\Compat;

// Key generation
['signingKey' => $sk, 'verificationKey' => $vk] = Compat::mldsa44_keygen();

// Signing
$message = 'message';
$signature = Compat::mldsa44_sign($sk, $message);
$valid = Compat::mldsa44_verify($vk, $signature, $message);
var_dump($valid); // bool(true)



declare(strict_types=1);
use ParagonIE\PQCrypto\Compat;

// Key generation
['signingKey' => $sk, 'verificationKey' => $vk] = Compat::mldsa65_keygen();

// Signing
$message = 'message';
$signature = Compat::mldsa65_sign($sk, $message);
$valid = Compat::mldsa65_verify($vk, $signature, $message);
var_dump($valid); // bool(true)



declare(strict_types=1);
use ParagonIE\PQCrypto\Compat;

// Key generation
['signingKey' => $sk, 'verificationKey' => $vk] = Compat::mldsa87_keygen();

// Signing
$message = 'message';
$signature = Compat::mldsa87_sign($sk, $message);
$valid = Compat::mldsa87_verify($vk, $signature, $message);
var_dump($valid); // bool(true)