phpseclib/tests/Unit/Crypt/RSA/CreateKeyTest.php
2022-07-08 08:37:58 -05:00

85 lines
3.0 KiB
PHP

<?php
/**
* @author Jim Wigginton <terrafrost@php.net>
* @copyright 2015 Jim Wigginton
* @license http://www.opensource.org/licenses/mit-license.html MIT License
*/
declare(strict_types=1);
namespace phpseclib3\Tests\Unit\Crypt\RSA;
use phpseclib3\Crypt\RSA;
use phpseclib3\Crypt\RSA\Formats\Keys\PKCS1;
use phpseclib3\Crypt\RSA\Formats\Keys\PKCS8;
use phpseclib3\Crypt\RSA\PrivateKey;
use phpseclib3\Crypt\RSA\PublicKey;
use phpseclib3\Tests\PhpseclibTestCase;
class CreateKeyTest extends PhpseclibTestCase
{
public function testCreateKey(): array
{
$privatekey = RSA::createKey(768);
$publickey = $privatekey->getPublicKey();
$this->assertInstanceOf(PrivateKey::class, $privatekey);
$this->assertInstanceOf(PublicKey::class, $publickey);
$this->assertNotEmpty("$privatekey");
$this->assertNotEmpty("$publickey");
$this->assertSame($privatekey->getLength(), 768);
$this->assertSame($publickey->getLength(), 768);
return [$publickey, $privatekey];
}
/**
* @depends testCreateKey
*/
public function testEncryptDecrypt($args): void
{
[$publickey, $privatekey] = $args;
$ciphertext = $publickey->encrypt('zzz');
$this->assertIsString($ciphertext);
$plaintext = $privatekey->decrypt($ciphertext);
$this->assertSame($plaintext, 'zzz');
}
public function testMultiPrime(): void
{
RSA::useInternalEngine();
RSA::setSmallestPrime(256);
$privatekey = RSA::createKey(1024);
$publickey = $privatekey->getPublicKey();
$this->assertInstanceOf(PrivateKey::class, $privatekey);
$this->assertInstanceOf(PublicKey::class, $publickey);
$this->assertNotEmpty($privatekey->toString('PKCS1'));
$this->assertNotEmpty($publickey->toString('PKCS1'));
$this->assertSame($privatekey->getLength(), 1024);
$this->assertSame($publickey->getLength(), 1024);
$r = PKCS1::load($privatekey->toString('PKCS1'));
$this->assertCount(4, $r['primes']);
// the last prime number could be slightly over. eg. 99 * 99 == 9801 but 10 * 10 = 100. the more numbers you're
// multiplying the less certain you are to have each of them multiply to an n-bit number
foreach (array_slice($r['primes'], 0, 3) as $i => $prime) {
$this->assertSame($prime->getLength(), 256);
}
$rsa = RSA::load($privatekey->toString('PKCS1'));
$signature = $rsa->sign('zzz');
$rsa = RSA::load($rsa->getPublicKey()->toString('PKCS1'));
$this->assertTrue($rsa->verify('zzz', $signature));
RSA::useBestEngine();
}
public function test3DESPKCS8Encryption(): void
{
$key = RSA::createKey(768)
->withPassword('demo')
->toString('PKCS8', ['encryptionAlgorithm' => 'pbeWithSHAAnd3-KeyTripleDES-CBC']);
$actual = PKCS8::extractEncryptionAlgorithm($key)['algorithm'];
$this->assertSame($actual, 'pbeWithSHAAnd3-KeyTripleDES-CBC');
}
}