mirror of
https://github.com/phpseclib/phpseclib.git
synced 2024-11-14 17:34:07 +00:00
274 lines
10 KiB
PHP
274 lines
10 KiB
PHP
<?php
|
|
|
|
/**
|
|
* @author Andreas Fischer <bantu@phpbb.com>
|
|
* @copyright 2013 Andreas Fischer
|
|
* @license http://www.opensource.org/licenses/mit-license.html MIT License
|
|
*/
|
|
|
|
namespace phpseclib3\Tests\Unit\Crypt;
|
|
|
|
use phpseclib3\Crypt\AES;
|
|
use phpseclib3\Crypt\DH;
|
|
use phpseclib3\Crypt\DH\Parameters;
|
|
use phpseclib3\Crypt\DH\PrivateKey;
|
|
use phpseclib3\Crypt\DH\PublicKey;
|
|
use phpseclib3\Crypt\EC;
|
|
use phpseclib3\Math\BigInteger;
|
|
use phpseclib3\Tests\PhpseclibTestCase;
|
|
|
|
class DHTest extends PhpseclibTestCase
|
|
{
|
|
public function testParametersWithString()
|
|
{
|
|
$a = DH::createParameters('diffie-hellman-group1-sha1');
|
|
$a = str_replace("\r\n", "\n", trim($a));
|
|
$b = str_replace("\r\n", "\n", '-----BEGIN DH PARAMETERS-----
|
|
MIGHAoGBAP//////////yQ/aoiFowjTExmKLgNwc0SkCTgiKZ8x0Agu+pjsTmyJR
|
|
Sgh5jjQE3e+VGbPNOkMbMCsKbfJfFDdP4TVtbVHCReSFtXZiXn7G9ExC6aY37WsL
|
|
/1y29Aa37e44a/taiZ+lrp8kEXxLH+ZJKGZR7OZTgf//////////AgEC
|
|
-----END DH PARAMETERS-----');
|
|
$this->assertSame($b, "$a");
|
|
}
|
|
|
|
public function testParametersWithInteger()
|
|
{
|
|
$a = DH::createParameters(512);
|
|
$this->assertIsString("$a");
|
|
}
|
|
|
|
public function testParametersWithBigIntegers()
|
|
{
|
|
$prime = 'FFFFFFFFFFFFFFFFC90FDAA22168C234C4C6628B80DC1CD129024E088A67CC74' .
|
|
'020BBEA63B139B22514A08798E3404DDEF9519B3CD3A431B302B0A6DF25F1437' .
|
|
'4FE1356D6D51C245E485B576625E7EC6F44C42E9A637ED6B0BFF5CB6F406B7ED' .
|
|
'EE386BFB5A899FA5AE9F24117C4B1FE649286651ECE65381FFFFFFFFFFFFFFFF';
|
|
$prime = new BigInteger($prime, 16);
|
|
$base = new BigInteger(2);
|
|
$a = DH::createParameters($prime, $base);
|
|
$a = str_replace("\r\n", "\n", trim($a));
|
|
$b = str_replace("\r\n", "\n", '-----BEGIN DH PARAMETERS-----
|
|
MIGHAoGBAP//////////yQ/aoiFowjTExmKLgNwc0SkCTgiKZ8x0Agu+pjsTmyJR
|
|
Sgh5jjQE3e+VGbPNOkMbMCsKbfJfFDdP4TVtbVHCReSFtXZiXn7G9ExC6aY37WsL
|
|
/1y29Aa37e44a/taiZ+lrp8kEXxLH+ZJKGZR7OZTgf//////////AgEC
|
|
-----END DH PARAMETERS-----');
|
|
$this->assertSame($b, "$a");
|
|
}
|
|
|
|
public function testCreateKey()
|
|
{
|
|
$param = DH::createParameters('diffie-hellman-group1-sha1');
|
|
$key = DH::createKey($param);
|
|
$this->assertIsString("$key");
|
|
$this->assertIsString((string) $key->getPublicKey());
|
|
}
|
|
|
|
public function testLoadPrivate()
|
|
{
|
|
$a = DH::load('-----BEGIN PRIVATE KEY-----
|
|
MIIBIgIBADCBlQYJKoZIhvcNAQMBMIGHAoGBAP//////////yQ/aoiFowjTExmKL
|
|
gNwc0SkCTgiKZ8x0Agu+pjsTmyJRSgh5jjQE3e+VGbPNOkMbMCsKbfJfFDdP4TVt
|
|
bVHCReSFtXZiXn7G9ExC6aY37WsL/1y29Aa37e44a/taiZ+lrp8kEXxLH+ZJKGZR
|
|
7OZTgf//////////AgECBIGEAoGBALJhtp0aNlkpKTcY1qj519XB8CPc7aZii0xV
|
|
bbb/3R93sweVmk2PlkSqxc2kdcofhL8Ev0DJKxB40Ipdqja71VoBbDZ2nMzS0J6s
|
|
b6R8Z19Xazc0wq+p/wqalmnuCMBUBuuQ8aNNaW8FGwFwAI3I6CuQSsKObVDJO25m
|
|
eKDXQq5i
|
|
-----END PRIVATE KEY-----');
|
|
$this->assertInstanceOf(PrivateKey::class, $a);
|
|
$this->assertInstanceOf(PublicKey::class, $a->getPublicKey());
|
|
$this->assertInstanceOf(Parameters::class, $a->getParameters());
|
|
}
|
|
|
|
public function testLoadPublic()
|
|
{
|
|
$a = DH::load('-----BEGIN PUBLIC KEY-----
|
|
MIIBHzCBlQYJKoZIhvcNAQMBMIGHAoGBAP//////////yQ/aoiFowjTExmKLgNwc
|
|
0SkCTgiKZ8x0Agu+pjsTmyJRSgh5jjQE3e+VGbPNOkMbMCsKbfJfFDdP4TVtbVHC
|
|
ReSFtXZiXn7G9ExC6aY37WsL/1y29Aa37e44a/taiZ+lrp8kEXxLH+ZJKGZR7OZT
|
|
gf//////////AgECA4GEAAKBgCsa1YmlaQIvbOuIi/6DKr7jsdMcv50u/Opemca5
|
|
i2REGZNPWmF3SRPrtq/4urrDRU0F2eQks7qnTkrauPK1/UvE1gwbqWrWgBko+6L+
|
|
Q3ADAIcv9LEmTBnSAOsCs1K9ExAmSv/T2/4+9dW28UYb+p/uV477d1wf+nCWS6VU
|
|
/gTm
|
|
-----END PUBLIC KEY-----');
|
|
$this->assertInstanceOf(PublicKey::class, $a);
|
|
}
|
|
|
|
public function testLoadParameters()
|
|
{
|
|
$a = DH::load('-----BEGIN DH PARAMETERS-----
|
|
MIGHAoGBAP//////////yQ/aoiFowjTExmKLgNwc0SkCTgiKZ8x0Agu+pjsTmyJR
|
|
Sgh5jjQE3e+VGbPNOkMbMCsKbfJfFDdP4TVtbVHCReSFtXZiXn7G9ExC6aY37WsL
|
|
/1y29Aa37e44a/taiZ+lrp8kEXxLH+ZJKGZR7OZTgf//////////AgEC
|
|
-----END DH PARAMETERS-----');
|
|
$this->assertInstanceOf(Parameters::class, $a);
|
|
}
|
|
|
|
public function testComputeSecretWithPublicKey()
|
|
{
|
|
$ourPriv = DH::load('-----BEGIN PRIVATE KEY-----
|
|
MIIBIgIBADCBlQYJKoZIhvcNAQMBMIGHAoGBAP//////////yQ/aoiFowjTExmKL
|
|
gNwc0SkCTgiKZ8x0Agu+pjsTmyJRSgh5jjQE3e+VGbPNOkMbMCsKbfJfFDdP4TVt
|
|
bVHCReSFtXZiXn7G9ExC6aY37WsL/1y29Aa37e44a/taiZ+lrp8kEXxLH+ZJKGZR
|
|
7OZTgf//////////AgECBIGEAoGBALJhtp0aNlkpKTcY1qj519XB8CPc7aZii0xV
|
|
bbb/3R93sweVmk2PlkSqxc2kdcofhL8Ev0DJKxB40Ipdqja71VoBbDZ2nMzS0J6s
|
|
b6R8Z19Xazc0wq+p/wqalmnuCMBUBuuQ8aNNaW8FGwFwAI3I6CuQSsKObVDJO25m
|
|
eKDXQq5i
|
|
-----END PRIVATE KEY-----');
|
|
$theirPub = DH::load('-----BEGIN PUBLIC KEY-----
|
|
MIIBHzCBlQYJKoZIhvcNAQMBMIGHAoGBAP//////////yQ/aoiFowjTExmKLgNwc
|
|
0SkCTgiKZ8x0Agu+pjsTmyJRSgh5jjQE3e+VGbPNOkMbMCsKbfJfFDdP4TVtbVHC
|
|
ReSFtXZiXn7G9ExC6aY37WsL/1y29Aa37e44a/taiZ+lrp8kEXxLH+ZJKGZR7OZT
|
|
gf//////////AgECA4GEAAKBgCsa1YmlaQIvbOuIi/6DKr7jsdMcv50u/Opemca5
|
|
i2REGZNPWmF3SRPrtq/4urrDRU0F2eQks7qnTkrauPK1/UvE1gwbqWrWgBko+6L+
|
|
Q3ADAIcv9LEmTBnSAOsCs1K9ExAmSv/T2/4+9dW28UYb+p/uV477d1wf+nCWS6VU
|
|
/gTm
|
|
-----END PUBLIC KEY-----');
|
|
$this->assertIsString(DH::computeSecret($ourPriv, $theirPub));
|
|
}
|
|
|
|
public function testComputeSecret()
|
|
{
|
|
// Ed25519 isn't normally used for DH (that honor goes to Curve25519) but that's not to say it can't
|
|
// be used
|
|
$curves = ['nistp256', 'curve25519', 'Ed25519'];
|
|
foreach ($curves as $curve) {
|
|
$ourPriv = EC::createKey($curve);
|
|
$theirPub = EC::createKey($curve)->getPublicKey();
|
|
$this->assertIsString(DH::computeSecret($ourPriv, $theirPub));
|
|
}
|
|
}
|
|
|
|
public function testEphemeralECDH()
|
|
{
|
|
// an RSA like hybrid cryptosystem can be done with ephemeral key ECDH
|
|
|
|
$plaintext = 'hello, world!';
|
|
|
|
$ourEphemeralPrivate = EC::createKey('Curve25519');
|
|
$ourEphemeralPublic = $ourEphemeralPrivate->getPublicKey();
|
|
|
|
$theirPrivate = EC::createKey('Curve25519');
|
|
$theirPublic = $theirPrivate->getPublicKey();
|
|
|
|
$key = DH::computeSecret($ourEphemeralPrivate, $theirPublic);
|
|
|
|
$aes = new AES('ctr');
|
|
$aes->setKey(substr($key, 0, 16));
|
|
$aes->setIV(substr($key, 16, 16));
|
|
|
|
$encrypted =
|
|
$ourEphemeralPublic->toString('MontgomeryPublic') .
|
|
$aes->encrypt($plaintext);
|
|
|
|
$theirPublic = substr($encrypted, 0, 32);
|
|
$theirPublic = EC::loadFormat('MontgomeryPublic', $theirPublic);
|
|
|
|
$ourPrivate = $theirPrivate;
|
|
|
|
$key = DH::computeSecret($ourPrivate, $theirPublic);
|
|
|
|
$aes = new AES('ctr');
|
|
$aes->setKey(substr($key, 0, 16));
|
|
$aes->setIV(substr($key, 16, 16));
|
|
|
|
$this->assertSame($plaintext, $aes->decrypt(substr($encrypted, 32)));
|
|
}
|
|
|
|
public function testMultiPartyDH()
|
|
{
|
|
// in multi party (EC)DH everyone, for each public key, everyone (save for the public key owner) "applies"
|
|
// their private key to it. they do so in series (as opposed to in parallel) and then everyone winds up
|
|
// with the same shared secret
|
|
|
|
$numParties = 4;
|
|
|
|
// create private keys
|
|
$parties = [];
|
|
for ($i = 0; $i < $numParties; $i++) {
|
|
$parties[] = EC::createKey('Curve25519');
|
|
}
|
|
|
|
// create shared secrets
|
|
$secrets = [];
|
|
for ($i = 0; $i < $numParties; $i++) {
|
|
$secrets[$i] = $parties[$i]->getPublicKey();
|
|
for ($j = 0; $j < $numParties; $j++) {
|
|
if ($i == $j) {
|
|
continue;
|
|
}
|
|
$secrets[$i] = DH::computeSecret($parties[$j], $secrets[$i]);
|
|
}
|
|
}
|
|
|
|
for ($i = 1; $i < $numParties; $i++) {
|
|
$this->assertSame($secrets[0], $secrets[$i]);
|
|
}
|
|
}
|
|
|
|
public function testCurve25519()
|
|
{
|
|
// utilizing test vector from https://tools.ietf.org/html/rfc7748#section-6.1
|
|
|
|
$alicePrivate = EC::loadFormat('MontgomeryPrivate', pack('H*', '77076d0a7318a57d3c16c17251b26645df4c2f87ebc0992ab177fba51db92c2a'));
|
|
$bobPrivate = EC::loadFormat('MontgomeryPrivate', pack('H*', '5dab087e624a8a4b79e17f8b83800ee66f3bb1292618b6fd1c2f8b27ff88e0eb'));
|
|
|
|
$alicePublic = $alicePrivate->getPublicKey();
|
|
$bobPublic = $bobPrivate->getPublicKey();
|
|
|
|
$this->assertSame(
|
|
'8520f0098930a754748b7ddcb43ef75a0dbf3a0d26381af4eba4a98eaa9b4e6a',
|
|
bin2hex($alicePublic->toString('MontgomeryPublic'))
|
|
);
|
|
|
|
$this->assertSame(
|
|
'de9edb7d7b7dc1b4d35b61c2ece435373f8343c85b78674dadfc7e146f882b4f',
|
|
bin2hex($bobPublic->toString('MontgomeryPublic'))
|
|
);
|
|
|
|
$expected = pack('H*', '4a5d9d5ba4ce2de1728e3bf480350f25e07e21c947d19e3376f09b3c1e161742');
|
|
|
|
$this->assertSame($expected, DH::computeSecret($alicePrivate, $bobPublic));
|
|
$this->assertSame($expected, DH::computeSecret($bobPrivate, $alicePublic));
|
|
}
|
|
|
|
public function testCurve448()
|
|
{
|
|
// utilizing test vector from https://tools.ietf.org/html/rfc7748#section-6.2
|
|
|
|
$alicePrivate = EC::loadFormat('MontgomeryPrivate', pack(
|
|
'H*',
|
|
'9a8f4925d1519f5775cf46b04b5800d4ee9ee8bae8bc5565d498c28d' .
|
|
'd9c9baf574a9419744897391006382a6f127ab1d9ac2d8c0a598726b'
|
|
));
|
|
$bobPrivate = EC::loadFormat('MontgomeryPrivate', pack(
|
|
'H*',
|
|
'1c306a7ac2a0e2e0990b294470cba339e6453772b075811d8fad0d1d' .
|
|
'6927c120bb5ee8972b0d3e21374c9c921b09d1b0366f10b65173992d'
|
|
));
|
|
|
|
$alicePublic = $alicePrivate->getPublicKey();
|
|
$bobPublic = $bobPrivate->getPublicKey();
|
|
|
|
$this->assertSame(
|
|
'9b08f7cc31b7e3e67d22d5aea121074a273bd2b83de09c63faa73d2c' .
|
|
'22c5d9bbc836647241d953d40c5b12da88120d53177f80e532c41fa0',
|
|
bin2hex($alicePublic->toString('MontgomeryPublic'))
|
|
);
|
|
|
|
$this->assertSame(
|
|
'3eb7a829b0cd20f5bcfc0b599b6feccf6da4627107bdb0d4f345b430' .
|
|
'27d8b972fc3e34fb4232a13ca706dcb57aec3dae07bdc1c67bf33609',
|
|
bin2hex($bobPublic->toString('MontgomeryPublic'))
|
|
);
|
|
|
|
$expected = pack(
|
|
'H*',
|
|
'07fff4181ac6cc95ec1c16a94a0f74d12da232ce40a77552281d282b' .
|
|
'b60c0b56fd2464c335543936521c24403085d59a449a5037514a879d'
|
|
);
|
|
|
|
$this->assertSame($expected, DH::computeSecret($alicePrivate, $bobPublic));
|
|
$this->assertSame($expected, DH::computeSecret($bobPrivate, $alicePublic));
|
|
}
|
|
}
|