/**
* @inheritdoc
*/
public function load($id)
{
if (!is_file($id)) {
throw new \Exception(sprintf('Could not find "%s"', $id));
}
if (!is_readable($id)) {
throw new \Exception(sprintf('"%s" cannot be read, check permissions', $id));
}
$encoded = file_get_contents($id);
$decoded = openssl_decrypt(\Bitpay\Util\Util::binConv($encoded), self::METHOD, $this->password, 1, self::IV);
if (false === $decoded) {
throw new \Exception('Could not decode key');
}
return unserialize($decoded);
}
/**
* Decodes $data from BASE-58 format
*
* @param string $data
*
* @return string
*/
public static function decode($data)
{
for ($return = '0', $i = 0; $i < strlen($data); $i++) {
$current = strpos(self::BASE58_CHARS, $data[$i]);
$return = Math::mul($return, '58');
$return = Math::add($return, $current);
}
$return = Util::encodeHex($return);
for ($i = 0; $i < strlen($data) && substr($data, $i, 1) == '1'; $i++) {
$return = '00' . $return;
}
if (strlen($return) % 2 != 0) {
$return = '0' . $return;
}
return $return;
}
/**
* Generates a Service Identification Number (SIN), see:
* https://en.bitcoin.it/wiki/Identity_protocol_v1
*
* @return SinKey
* @throws \Exception
*/
public function generate()
{
if (is_null($this->publicKey)) {
throw new \Exception('Public Key has not been set');
}
$compressedValue = $this->publicKey;
if (empty($compressedValue)) {
throw new \Exception('The Public Key needs to be generated.');
}
$step1 = Util::sha256(Util::binConv($compressedValue), true);
$step2 = Util::ripe160($step1);
$step3 = sprintf('%s%s%s', self::SIN_VERSION, self::SIN_TYPE, $step2);
$step4 = Util::twoSha256(Util::binConv($step3), true);
$step5 = substr(bin2hex($step4), 0, 8);
$step6 = $step3 . $step5;
$this->value = Base58::encode($step6);
return $this;
}
/**
* Encodes keypair data to PEM format.
*
* @param array $keypair The keypair info.
* @return string The data to decode.
* @throws \Exception
*/
public function pemEncode($keypair)
{
if (is_array($keypair) && (strlen($keypair[0]) < 64 || strlen($keypair[1]) < 128)) {
throw new \Exception('Invalid or corrupt secp256k1 keypair provided. Cannot decode the supplied PEM data.');
}
$dec = '';
$byte = '';
$beg_ec_text = '';
$end_ec_text = '';
$ecpemstruct = array();
$digits = array();
for ($x = 0; $x < 256; $x++) {
$digits[$x] = chr($x);
}
$ecpemstruct = array('sequence_beg' => '30', 'total_len' => '74', 'int_sec_beg' => '02', 'int_sec_len' => '01', 'int_sec_val' => '01', 'oct_sec_beg' => '04', 'oct_sec_len' => '20', 'oct_sec_val' => $keypair[0], 'a0_ele_beg' => 'a0', 'a0_ele_len' => '07', 'obj_id_beg' => '06', 'obj_id_len' => '05', 'obj_id_val' => '2b8104000a', 'a1_ele_beg' => 'a1', 'a1_ele_len' => '44', 'bit_str_beg' => '03', 'bit_str_len' => '42', 'bit_str_val' => '00' . $keypair[1]);
$beg_ec_text = '-----BEGIN EC PRIVATE KEY-----';
$end_ec_text = '-----END EC PRIVATE KEY-----';
$dec = trim(implode($ecpemstruct));
if (strlen($dec) < 230) {
throw new \Exception('Invalid or corrupt secp256k1 keypair provided. Cannot encode the supplied data.');
}
$dec = Util::decodeHex('0x' . $dec);
while (Math::cmp($dec, '0') > 0) {
$dv = Math::div($dec, '256');
$rem = Math::mod($dec, '256');
$dec = $dv;
$byte = $byte . $digits[$rem];
}
$byte = $beg_ec_text . "\r\n" . chunk_split(base64_encode(strrev($byte)), 64) . $end_ec_text;
$this->pemEncoded = $byte;
return $byte;
}
/**
* @inheritdoc
*/
public function createToken(array $payload = array())
{
if (isset($payload['pairingCode']) && 1 !== preg_match('/^[a-zA-Z0-9]{7}$/', $payload['pairingCode'])) {
throw new \Exception('[ERROR] In Client::createToken(): The pairing code provided is not legal.');
}
$this->request = $this->createNewRequest();
$this->request->setMethod(Request::METHOD_POST);
$this->request->setPath('tokens');
$payload['guid'] = Util::guid();
$this->request->setBody(json_encode($payload));
$this->response = $this->sendRequest($this->request);
$body = json_decode($this->response->getBody(), true);
if (isset($body['error'])) {
throw new \Bitpay\Client\BitpayException($this->response->getStatusCode() . ': ' . $body['error']);
}
$tkn = $body['data'][0];
$createdAt = new \DateTime();
$pairingExpiration = new \DateTime();
$token = new \Bitpay\Token();
$token->setPolicies($tkn['policies'])->setToken($tkn['token'])->setFacade($tkn['facade'])->setCreatedAt($createdAt->setTimestamp(floor($tkn['dateCreated'] / 1000)));
if (isset($tkn['resource'])) {
$token->setResource($tkn['resource']);
}
if (isset($tkn['pairingCode'])) {
$token->setPairingCode($tkn['pairingCode']);
$token->setPairingExpiration($pairingExpiration->setTimestamp(floor($tkn['pairingExpiration'] / 1000)));
}
return $token;
}
public function testCheckRequirements()
{
$requirements = Util::checkRequirements();
// PHP Version
if (!defined('PHP_VERSION_ID')) {
$version = explode('.', PHP_VERSION);
define('PHP_VERSION_ID', $version[0] * 10000 + $version[1] * 100 + $version[2]);
}
if (PHP_VERSION_ID >= 50400) {
$this->assertTrue($requirements['PHP']);
} else {
$this->assertTrue(is_string($requirements['PHP']));
}
// Mcrypt Extension
if (extension_loaded('mcrypt')) {
$this->assertTrue($requirements['Mcrypt']);
} else {
$this->assertTrue(is_string($requirements['Mcrypt']));
}
// OpenSSL Extension
if (extension_loaded('openssl')) {
$this->assertTrue($requirements['OpenSSL']);
} else {
$this->assertTrue(is_string($requirements['OpenSSL']));
}
// JSON Extension
if (extension_loaded('json')) {
$this->assertTrue($requirements['JSON']);
} else {
$this->assertTrue(is_string($requirements['JSON']));
}
// cURL Extension
if (extension_loaded('curl')) {
$this->assertTrue($requirements['cURL']);
$curl_version = curl_version();
$ssl_supported = $curl_version['features'] & CURL_VERSION_SSL;
if ($ssl_supported) {
$this->assertTrue($requirements['cURL.SSL']);
} else {
$this->assertTrue(is_string($requirements['cURL.SSL']));
}
} else {
$this->assertTrue(is_string($requirements['cURL']));
$this->assertTrue(is_string($requirements['cURL']));
}
// Math
if (extension_loaded('bcmath') || extension_loaded('gmp')) {
$this->assertTrue($requirements['Math']);
} else {
$this->assertTrue(is_string($requirements['Math']));
}
}
/**
* Generates an uncompressed and compressed EC public key.
*
* @param \Bitpay\PrivateKey $privateKey
* @return \Bitpay\PublicKey
* @throws \Exception
*/
public function generate(PrivateKey $privateKey = null)
{
if ($privateKey instanceof PrivateKey) {
$this->setPrivateKey($privateKey);
}
if (!empty($this->hex)) {
return $this;
}
if (is_null($this->privateKey)) {
throw new \Exception('Please `setPrivateKey` before you generate a public key');
}
if (!$this->privateKey->isGenerated()) {
$this->privateKey->generate();
}
if (!$this->privateKey->isValid()) {
throw new \Exception('Private Key is invalid and cannot be used to generate a public key');
}
$point = new Point('0x' . substr(Secp256k1::G, 2, 64), '0x' . substr(Secp256k1::G, 66, 64));
$R = Util::doubleAndAdd('0x' . $this->privateKey->getHex(), $point);
$RxHex = Util::encodeHex($R->getX());
$RyHex = Util::encodeHex($R->getY());
$RxHex = str_pad($RxHex, 64, '0', STR_PAD_LEFT);
$RyHex = str_pad($RyHex, 64, '0', STR_PAD_LEFT);
$this->x = $RxHex;
$this->y = $RyHex;
$this->hex = sprintf('%s%s', $RxHex, $RyHex);
$this->dec = Util::decodeHex($this->hex);
return $this;
}
