/**
*
* @see \JWX\JWS\SignatureAlgorithm::validateSignature()
* @throws \RuntimeException For generic errors
* @return bool
*/
public function validateSignature($data, $signature)
{
$key = openssl_pkey_get_public($this->_publicKey->toPEM()->string());
if (!$key) {
throw new \RuntimeException("openssl_pkey_get_public() failed: " . $this->_getLastOpenSSLError());
}
$result = @openssl_verify($data, $signature, $key, $this->_mdMethod());
if (false === $result || -1 == $result) {
throw new \RuntimeException("openssl_verify() failed: " . $this->_getLastOpenSSLError());
}
return $result == 1;
}
/**
* Constructor
*
* @param JWKParameter ...$params
* @throws \UnexpectedValueException If missing required parameter
*/
public function __construct(JWKParameter ...$params)
{
parent::__construct(...$params);
foreach (self::MANAGED_PARAMS as $name) {
if (!$this->has($name)) {
throw new \UnexpectedValueException("Missing '{$name}' parameter.");
}
}
if ($this->keyTypeParameter()->value() != KeyTypeParameter::TYPE_EC) {
throw new \UnexpectedValueException("Invalid key type.");
}
}