phpseclib/tests/Unit/Crypt/RSA/CreateKeyTest.php

68 lines
2.4 KiB
PHP

<?php
/**
* @author Jim Wigginton <terrafrost@php.net>
* @copyright 2015 Jim Wigginton
* @license http://www.opensource.org/licenses/mit-license.html MIT License
*/
use phpseclib\Crypt\RSA;
use phpseclib\Crypt\RSA\PKCS1;
class Unit_Crypt_RSA_CreateKeyTest extends PhpseclibTestCase
{
public function testCreateKey()
{
extract(RSA::createKey(768));
$this->assertInstanceOf('\phpseclib\Crypt\RSA', $privatekey);
$this->assertInstanceOf('\phpseclib\Crypt\RSA', $publickey);
$this->assertNotEmpty("$privatekey");
$this->assertNotEmpty("$publickey");
$this->assertSame($privatekey->getLength(), 768);
$this->assertSame($publickey->getLength(), 768);
return array($publickey, $privatekey);
}
/**
* @depends testCreateKey
*/
public function testEncryptDecrypt($args)
{
list($publickey, $privatekey) = $args;
$ciphertext = $publickey->encrypt('zzz');
$this->assertInternalType('string', $ciphertext);
$plaintext = $privatekey->decrypt($ciphertext);
$this->assertSame($plaintext, 'zzz');
}
public function testMultiPrime()
{
RSA::setPreferredEngine(RSA::ENGINE_INTERNAL);
RSA::setSmallestPrime(256);
extract(RSA::createKey(1024));
$this->assertInstanceOf('\phpseclib\Crypt\RSA', $privatekey);
$this->assertInstanceOf('\phpseclib\Crypt\RSA', $publickey);
$privatekey->setPrivateKeyFormat('PKCS1');
$this->assertNotEmpty("$privatekey");
$this->assertNotEmpty("$publickey");
$this->assertSame($privatekey->getLength(), 1024);
$this->assertSame($publickey->getLength(), 1024);
$r = PKCS1::load("$privatekey");
$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 = new RSA();
$rsa->load($privatekey->getPrivateKey());
$signature = $rsa->sign('zzz');
$rsa->load($rsa->getPublicKey());
$this->assertTrue($rsa->verify('zzz', $signature));
RSA::setPreferredEngine(RSA::ENGINE_OPENSSL);
}
}