/**
* @expectedException \InvalidArgumentException
* @expectedExceptionMessage Invalid base64
*/
public function testInvalidBase64Data()
{
$data = "ab\$";
$adapter = EccFactory::getAdapter();
$serializer = new SshPublicKeySerializer($adapter, new UncompressedPointSerializer($adapter));
$serializer->unserialize($data);
}
/**
* @expectedException \InvalidArgumentException
* @expectedExceptionMessage Integer too large, exceeds 64 bit
*/
public function testSolveReadTooLong()
{
$math = EccFactory::getAdapter();
$varint = new VarInt($math);
$disallowed = $math->add($math->pow(2, 64), 1);
$varint->solveReadSize($disallowed);
}
public function testMultiPartyKeyGeneration()
{
$adapter = EccFactory::getAdapter();
$generator = EccFactory::getNistCurves($adapter)->generator256();
$messages = new MessageFactory($adapter);
$alice = $generator->createPrivateKey();
$bob = $generator->createPrivateKey();
$carol = $generator->createPrivateKey();
// Alice computes g^a and sends it to Bob.
$bobX = $alice->createExchange($messages, $bob->getPublicKey());
// Bob computes (g^a)^b = g^{ab} and sends it to Carol.
$carolX = $carol->createExchange($messages, $bobX->createMultiPartyKey());
// Carol computes (g^{ab})^c = g^{abc} and uses it as her secret.
$carolSharedKey = $carolX->calculateSharedKey();
// Bob computes g^b and sends it to Carol.
$carolX = $carol->createExchange($messages, $bob->getPublicKey());
// Carol computes (g^b)^c = g^{bc} and sends it to Alice.
$aliceX = $alice->createExchange($messages, $carolX->createMultiPartyKey());
// Alice computes (g^{bc})^a = g^{bca} = g^{abc} and uses it as her secret.
$aliceSharedKey = $aliceX->calculateSharedKey();
// Carol computes g^c and sends it to Alice.
$aliceX = $carol->createExchange($messages, $alice->getPublicKey());
// Alice computes (g^c)^a = g^{ca} and sends it to Bob.
$bobX = $bob->createExchange($messages, $aliceX->createMultiPartyKey());
// Bob computes (g^{ca})^b = g^{cab} = g^{abc} and uses it as his secret.
$bobSharedKey = $bobX->calculateSharedKey();
$this->assertTrue($bobSharedKey == $aliceSharedKey);
$this->assertTrue($aliceSharedKey == $carolSharedKey);
$this->assertTrue($carolSharedKey == $bobSharedKey);
}
/**
*
*/
public function __construct()
{
if (!class_exists('\\Mdanter\\Ecc\\EccFactory')) {
throw new \RuntimeException("The library 'mdanter/ecc' is required to use Elliptic Curves based algorithm algorithms");
}
$this->adapter = EccFactory::getAdapter();
}
public function testGMP()
{
$math = \Mdanter\Ecc\EccFactory::getAdapter();
$I_l = "e97a4d6be13f8f5804c0a76080428fc6d51260f74801678c4127045d2640af14";
$private_key = "142018c66b43a95de58c1cf603446fc0da322bc15fb4df068b844b57c706dd05";
$n = "115792089237316195423570985008687907852837564279074904382605163141518161494337";
$gmp_I_l = gmp_init($I_l, 16);
$gmp_private_key = gmp_init($private_key, 16);
$gmp_add = gmp_add($gmp_I_l, $gmp_private_key);
$gmp_add_res = gmp_strval($gmp_add, 10);
$this->assertEquals("105604983404708440304568772161069255144976878830542744455590282065741265022740", gmp_strval($gmp_I_l));
$this->assertEquals("9102967069016248707169900673545386030247334423973996501079368232055584775429", gmp_strval($gmp_private_key));
$this->assertEquals("114707950473724689011738672834614641175224213254516740956669650297796849798169", gmp_strval($gmp_add));
$this->assertEquals("114707950473724689011738672834614641175224213254516740956669650297796849798169", gmp_strval(gmp_div_r($gmp_add, gmp_init($n))));
$this->assertEquals("-4", gmp_strval(gmp_cmp(0, gmp_div_r($gmp_add, $n))));
$this->assertEquals("230500039711040884435309657843302549028061777533591645339274813439315011292506", gmp_strval(gmp_add(gmp_init($n), gmp_div_r($gmp_add, gmp_init($n)))));
$gmp_mod2 = $math->mod($gmp_add_res, $n);
$this->assertTrue(is_string($gmp_mod2));
$this->assertEquals("114707950473724689011738672834614641175224213254516740956669650297796849798169", $gmp_mod2);
$this->assertEquals("114707950473724689011738672834614641175224213254516740956669650297796849798169", $gmp_mod2);
// when no base is provided both a resource and string work
$this->assertEquals("114707950473724689011738672834614641175224213254516740956669650297796849798169", gmp_strval(gmp_init($gmp_mod2)));
$this->assertEquals("114707950473724689011738672834614641175224213254516740956669650297796849798169", gmp_strval($gmp_mod2));
// when base is provided it fails on HHVM when inputting a string
$this->assertEquals("fd9a66324c8338b5ea4cc4568386ff87af448cb8a7b64692ccab4fb4ed478c19", gmp_strval(gmp_init($gmp_mod2), 16));
// $this->assertEquals("fd9a66324c8338b5ea4cc4568386ff87af448cb8a7b64692ccab4fb4ed478c19", gmp_strval($gmp_mod2, 16));
$this->assertEquals("fd9a66324c8338b5ea4cc4568386ff87af448cb8a7b64692ccab4fb4ed478c19", str_pad(gmp_strval(gmp_init($gmp_mod2), 16), 64, '0', STR_PAD_LEFT));
}
/**
* Constructor
*
* @param $service
* @param $private_key
* @param $public_key
* @param bool $debug
*/
public function __construct($service, $private_key, $public_key, $debug = FALSE)
{
$this->math_adapter = EccFactory::getAdapter();
$this->service_name = $service;
$this->private_key = $private_key;
$this->public_key = $public_key;
$this->debug = $debug;
}
/**
* @param string $sigAlgo
* @return Hasher
*/
public static function getHasher($sigAlgo)
{
if (array_key_exists($sigAlgo, self::$oidMap)) {
$algo = explode("+", $sigAlgo)[1];
return new Hasher(EccFactory::getAdapter(), $algo);
}
throw new \RuntimeException('Unsupported hashing algorithm.');
}
/**
* Instantiate class, optionally taking Buffer or HEX.
*
* @param null|string|Buffer $input
* @param MathAdapterInterface|null $math
*/
public function __construct($input = null, MathAdapterInterface $math = null)
{
$this->math = $math ?: EccFactory::getAdapter();
if (!$input instanceof Buffer) {
$input = Buffer::hex($input, null, $this->math);
}
$this->string = $input->getBinary();
$this->position = 0;
}
public function testVector()
{
$math = EccFactory::getAdapter();
$factory = new TemplateFactory(null, $math);
$factory->vector(function () {
return;
});
$template = $factory->getTemplate();
$this->assertEquals(1, count($template));
$template = $factory->getTemplate()->getItems();
$this->assertInstanceOf('BitWasp\\Buffertools\\Types\\Vector', $template[0]);
}
function setVAPIDInfo($privateKey, $audience, $subject)
{
if (!USE_VAPID || !$privateKey || !$audience || !$subject) {
return;
}
$builder = new Builder();
$token = $builder->setAudience($audience)->setExpiration(time() + 86400)->setSubject($subject)->sign(new Sha256(), new Key($privateKey))->getToken();
$this->additionalHeaders['Authorization'] = 'Bearer ' . $token;
$privKeySerializer = new PemPrivateKeySerializer(new DerPrivateKeySerializer());
$privateKeyObject = $privKeySerializer->parse($privateKey);
$publicKeyObject = $privateKeyObject->getPublicKey();
$pointSerializer = new UncompressedPointSerializer(EccFactory::getAdapter());
$this->additionalHeaders['Crypto-Key'] = 'p256ecdsa=' . Base64Url::encode(hex2bin($pointSerializer->serialize($publicKeyObject->getPoint())));
}
function get_public_key($privateKey)
{
$publicKeyVal = __('Your private key is invalid.', 'web-push');
error_reporting(E_ERROR);
try {
$privKeySerializer = new PemPrivateKeySerializer(new DerPrivateKeySerializer());
$privateKeyObject = $privKeySerializer->parse($privateKey);
$publicKeyObject = $privateKeyObject->getPublicKey();
$pointSerializer = new UncompressedPointSerializer(EccFactory::getAdapter());
$publicKeyVal = Base64Url::encode(hex2bin($pointSerializer->serialize($publicKeyObject->getPoint())));
} catch (Exception $e) {
// Ignore exceptions while getting the public key from the private key.
}
error_reporting(E_ALL);
return $publicKeyVal;
}
public function testReadVector()
{
$math = EccFactory::getAdapter();
$varint = new VarInt($math);
$vector = new Vector($varint, function (Parser &$parser) {
return $parser->readBytes(16);
});
$eBuffer = Buffer::hex('010203040506070809000a0b0c0d0e0f');
$hex = '03010203040506070809000a0b0c0d0e0f010203040506070809000a0b0c0d0e0f010203040506070809000a0b0c0d0e0f';
$buffer = Buffer::hex($hex);
$parser = new Parser($buffer);
$array = $vector->read($parser);
foreach ($array as $item) {
$this->assertEquals($eBuffer->getBinary(), $item->getBinary());
}
}
public function testCurve()
{
$math = EccFactory::getAdapter();
$G = CurveFactory::getGeneratorByName("nist-p224");
$algo = 'sha256';
// Initialize private key and message hash (decimal)
$privateKey = $G->getPrivateKeyFrom($this->math->hexDec('F220266E1105BFE3083E03EC7A3A654651F45E37167E88600BF257C1'));
$messageHash = $this->math->hexDec(hash($algo, "sample"));
// Derive K
$drbg = RandomGeneratorFactory::getHmacRandomGenerator($privateKey, $messageHash, $algo);
$k = $drbg->generate($this->G->getOrder());
//$this->assertEquals($this->math->hexdec($test->expectedK), $k);
$signer = new Signer($this->math);
$sig = $signer->sign($privateKey, $messageHash, $k);
// R and S should be correct
//$sR = $this->math->hexDec(substr(strtolower($test->expectedRS), 0, 64));
//$sS = $this->math->hexDec(substr(strtolower($test->expectedRS), 64, 64));
//$this->assertSame($sR, $sig->getR());
//$this->assertSame($sS, $sig->getS());
}
/**
* @param string $payload With padding
* @param string $userPublicKey Base 64 encoded (MIME or URL-safe)
* @param string $userAuthToken Base 64 encoded (MIME or URL-safe)
* @param bool $nativeEncryption Use OpenSSL (>PHP7.1)
*
* @return array
*/
public static function encrypt($payload, $userPublicKey, $userAuthToken, $nativeEncryption)
{
$userPublicKey = Base64Url::decode($userPublicKey);
$userAuthToken = Base64Url::decode($userAuthToken);
// initialize utilities
$math = EccFactory::getAdapter();
$pointSerializer = new UncompressedPointSerializer($math);
$generator = EccFactory::getNistCurves()->generator256();
$curve = EccFactory::getNistCurves()->curve256();
// get local key pair
$localPrivateKeyObject = $generator->createPrivateKey();
$localPublicKeyObject = $localPrivateKeyObject->getPublicKey();
$localPublicKey = hex2bin($pointSerializer->serialize($localPublicKeyObject->getPoint()));
// get user public key object
$pointUserPublicKey = $pointSerializer->unserialize($curve, bin2hex($userPublicKey));
$userPublicKeyObject = $generator->getPublicKeyFrom($pointUserPublicKey->getX(), $pointUserPublicKey->getY(), $generator->getOrder());
// get shared secret from user public key and local private key
$sharedSecret = hex2bin($math->decHex(gmp_strval($userPublicKeyObject->getPoint()->mul($localPrivateKeyObject->getSecret())->getX())));
// generate salt
$salt = openssl_random_pseudo_bytes(16);
// section 4.3
$ikm = !empty($userAuthToken) ? self::hkdf($userAuthToken, $sharedSecret, 'Content-Encoding: auth' . chr(0), 32) : $sharedSecret;
// section 4.2
$context = self::createContext($userPublicKey, $localPublicKey);
// derive the Content Encryption Key
$contentEncryptionKeyInfo = self::createInfo('aesgcm', $context);
$contentEncryptionKey = self::hkdf($salt, $ikm, $contentEncryptionKeyInfo, 16);
// section 3.3, derive the nonce
$nonceInfo = self::createInfo('nonce', $context);
$nonce = self::hkdf($salt, $ikm, $nonceInfo, 12);
// encrypt
// "The additional data passed to each invocation of AEAD_AES_128_GCM is a zero-length octet sequence."
if (!$nativeEncryption) {
list($encryptedText, $tag) = \AESGCM\AESGCM::encrypt($contentEncryptionKey, $nonce, $payload, '');
} else {
$encryptedText = openssl_encrypt($payload, 'aes-128-gcm', $contentEncryptionKey, OPENSSL_RAW_DATA, $nonce, $tag);
// base 64 encoded
}
// return values in url safe base64
return array('localPublicKey' => Base64Url::encode($localPublicKey), 'salt' => Base64Url::encode($salt), 'cipherText' => $encryptedText . $tag);
}
public function testSignAndIsCanonical()
{
$cnt = (getenv('BITCOINLIB_EXTENSIVE_TESTING') ?: 1) * 10;
$math = EccFactory::getAdapter();
$G = EccFactory::getSecgCurves()->generator256k1();
$private = $G->createPrivateKey();
for ($i = 0; $i < $cnt; $i++) {
$randomMsgHash = $math->hexDec((string) hash('sha256', 'random' . $i));
$randomK = $math->hexDec((string) bin2hex(mcrypt_create_iv(32, \MCRYPT_DEV_URANDOM)));
$signer = new \Mdanter\Ecc\Crypto\Signature\Signer($math);
$sign = $signer->sign($private, $randomMsgHash, $randomK);
$this->assertInstanceOf('Mdanter\\Ecc\\Crypto\\Signature\\Signature', $sign);
$sig = RawTransaction::encode_signature($sign);
$this->assertTrue(RawTransaction::is_canonical_signature($sig));
}
}
<?php // ------------------------------------------ // Step 0 - Create the application keys // ------------------------------------------ // include composer autoloader require '../vendor/autoload.php'; use Mdanter\Ecc\EccFactory; $generator = EccFactory::getNistCurves()->generator256(); $private = $generator->createPrivateKey(); $public = $private->getPublicKey(); $adaptor = EccFactory::getAdapter(); $public_point = $public->getPoint(); // hexlify the integers $private_hex = $adaptor->decHex($private->getSecret()); $public_hex = $adaptor->decHex($public_point->getX()) . $adaptor->decHex($public_point->getY()); // keys! $keys = ['public' => $public_hex, 'private' => $private_hex]; var_dump($keys); // Once we have EC Keys, we continue on step1.php file and fill in the data in config.php
public function IntVectors()
{
$math = EccFactory::getAdapter();
return array(array('1', 1, '01', $math), array('1', null, '01', $math), array('20', 1, '14', $math));
}
/**
* @param InputInterface $input
* @param OutputInterface $output
* @param QuestionHelper $helper
* @param string $curveName
* @param bool $useEncryption
* @return array
*/
public function generateKeyData(InputInterface $input, OutputInterface $output, QuestionHelper $helper, $curveName, $useEncryption)
{
if (!is_bool($useEncryption)) {
throw new \InvalidArgumentException('useEncryption parameter must be a boolean');
}
/**
* @var GeneratorPoint $generator
*/
list(, $generator) = Curves::load($curveName);
$key = $generator->createPrivateKey();
if ($useEncryption) {
$password = $this->promptForPassword($input, $output, $helper);
$encrypted = new EncryptedPrivateKey($key, 'AES-128-CBC', random_bytes(16));
$serializer = new EncryptedPrivateKeySerializer(new DerPrivateKeySerializer());
$keyData = $serializer->serialize($encrypted, $password);
} else {
$serializer = new PemPrivateKeySerializer(new DerPrivateKeySerializer());
$keyData = $serializer->serialize($key);
}
$adapter = EccFactory::getAdapter();
$publicKey = $key->getPublicKey();
$publicSerializer = new SshPublicKeySerializer($adapter, new UncompressedPointSerializer($adapter));
$publicData = $publicSerializer->serialize($curveName, $publicKey);
$localUser = posix_getpwuid(posix_geteuid());
$localHost = gethostname();
$publicData = sprintf("ecdsa-sha2-%s %s %s@%s\n", $curveName, $publicData, $localUser['name'], $localHost);
return [$keyData, $publicData];
}
/**
* @param $value
*
* @return string
*/
private function convertDecToBin($value)
{
$value = gmp_strval($value, 10);
$adapter = EccFactory::getAdapter();
return hex2bin($adapter->decHex($value));
}
/**
* @param $value
*
* @return string
*/
private function convertDecToHex($value)
{
$value = gmp_strval($value, 10);
return EccFactory::getAdapter()->decHex($value);
}
private static function getUncompressedKeys(PrivateKeyInterface $privateKeyObject)
{
$pointSerializer = new UncompressedPointSerializer(EccFactory::getAdapter());
$vapid['publicKey'] = base64_encode(hex2bin($pointSerializer->serialize($privateKeyObject->getPublicKey()->getPoint())));
$vapid['privateKey'] = base64_encode(hex2bin(str_pad(gmp_strval($privateKeyObject->getSecret(), 16), 2 * self::PRIVATE_KEY_LENGTH, '0', STR_PAD_LEFT)));
return $vapid;
}
/**
* @expectedException \Exception
* @expectedExceptionMessage Bit string length must be a multiple of 8
*/
public function testInvalidFlipLength()
{
$math = EccFactory::getAdapter();
$u = new Uint8($math, 1);
$u->flipBits('0');
}
private function getAdapter()
{
if (!is_null($this->adapter)) {
return $this->adapter;
}
$this->adapter = EccFactory::getAdapter();
return $this->adapter;
}
<?php
require "../vendor/autoload.php";
use Mdanter\Ecc\Serializer\PublicKey\DerPublicKeySerializer;
use Mdanter\X509\Serializer\Certificates\CertificateSubjectSerializer;
use Mdanter\X509\Serializer\Signature\DerSignatureSerializer;
$curveName = 'secp256k1';
$hasherName = 'sha512';
$serialNo = 0;
$math = \Mdanter\Ecc\EccFactory::getAdapter();
$f = new \Mdanter\X509\Factory();
$domain = $f->getDomain($math, $curveName, $hasherName);
$G = $domain->getGenerator();
$randomInt = \Mdanter\Ecc\Random\RandomGeneratorFactory::getUrandomGenerator()->generate($G->getOrder());
$k = $G->getPrivateKeyFrom($randomInt);
$issuerDetails = ['commonName' => 'test CA'];
$issuerSubject = new \Mdanter\X509\Certificates\CertificateSubject($issuerDetails);
$ca = $f->getCA($math, $domain, $issuerSubject);
$serializer = new \Mdanter\X509\Serializer\Certificates\CertificateSerializer(new CertificateSubjectSerializer(), new DerPublicKeySerializer(), new DerSignatureSerializer());
$validityStart = new DateTime('now');
$validityEnd = new DateTime('now');
$validityEnd->modify("+1 year");
$info = new \Mdanter\X509\Certificates\CertificateInfo(0, $domain->getSigAlgorithm(), $issuerSubject, $issuerSubject, $k->getPublicKey(), $validityStart, $validityEnd);
$usage = new \Mdanter\X509\Extensions\Extension\KeyUsage(null);
$usage->addKeyUsage(0);
$usage->addKeyUsage(1);
$usage->addKeyUsage(5);
var_dump($usage->getBitString());
$certificate = $ca->createCertificate($serializer, $info, $k);
echo $serializer->serialize($certificate);
/**
* Decode Mnemonic
*
* This function decodes a string of 12 words to convert to the electrum
* seed. This is an implementation of http://tools.ietf.org/html/rfc1751,
* which is how electrum generates a 128-bit key from 12 words.
*
* @param string $words
* @return string
*/
public static function decode_mnemonic($words)
{
$math = EccFactory::getAdapter();
$words = explode(" ", $words);
$out = '';
$n = 1626;
for ($i = 0; $i < count($words) / 3; $i++) {
$a = 3 * $i;
list($word1, $word2, $word3) = array($words[$a], $words[$a + 1], $words[$a + 2]);
$index_w1 = array_search($word1, self::$words);
$index_w2 = array_search($word2, self::$words) % $n;
$index_w3 = array_search($word3, self::$words) % $n;
$x = $index_w1 + $n * $math->mod($index_w2 - $index_w1, $n) + $n * $n * $math->mod($index_w3 - $index_w2, $n);
$out .= BitcoinLib::hex_encode($x);
}
return $out;
}
/**
* @param string $value
*
* @return string
*/
private static function convertDecToBin($value)
{
$adapter = EccFactory::getAdapter();
return hex2bin($adapter->decHex($value));
}
/**
* @expectedException \Exception
*/
public function testNumToVarIntOutOfRange()
{
// Check that this is out of range (PHP's fault)
$decimal = EccFactory::getAdapter()->pow(2, 32) + 1;
Buffertools::numToVarInt($decimal);
}
/**
* @param int|string $integer
* @param null|int $byteSize
* @param MathAdapterInterface|null $math
* @return Buffer
*/
public static function int($integer, $byteSize = null, MathAdapterInterface $math = null)
{
$math = $math ?: EccFactory::getAdapter();
$binary = pack("H*", $math->decHex($integer));
return new self($binary, $byteSize, $math);
}
/**
* @param Adapter|null $adapter
* @param EcdsaSigner|null $signer
* @param KeyParser|null $parser
*/
public function __construct(Adapter $adapter = null, Signer $signer = null, KeyParser $parser = null)
{
$this->adapter = $adapter ?: EccFactory::getAdapter();
$this->signer = $signer ?: EccFactory::getSigner($this->adapter);
$this->parser = $parser ?: new KeyParser($this->adapter);
}
/**
* Decode Signature
*
* This function extracts the r and s parameters from a DER encoded
* signature. No checking on the validity of the numbers.
*
* @param string $signature
* @return array
*/
public static function decode_signature($signature)
{
$math = EccFactory::getAdapter();
$r_start = 8;
$r_length = $math->hexDec(substr($signature, 6, 2)) * 2;
$r_end = $r_start + $r_length;
$r = substr($signature, $r_start, $r_length);
$s_start = $r_end + 4;
$s_length = $math->hexDec(substr($signature, $r_end + 2, 2)) * 2;
$s = substr($signature, $s_start, $s_length);
return array('r' => $r, 's' => $s, 'hash_type' => substr($signature, -2), 'last_byte_s' => substr($s, -2));
}
