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<?php /** * Finite Field Integer Base Class * * PHP version 5 and 7 * * @author Jim Wigginton <[email protected]> * @copyright 2017 Jim Wigginton * @license http://www.opensource.org/licenses/mit-license.html MIT License */ namespace phpseclib3\Math\Common\FiniteField; /** * Finite Field Integer * * @author Jim Wigginton <[email protected]> */ abstract class Integer implements \JsonSerializable { /** * JSON Serialize * * Will be called, automatically, when json_encode() is called on a BigInteger object. * * PHP Serialize isn't supported because unserializing would require the factory be * serialized as well and that just sounds like too much * * @return array{hex: string} */ #[\ReturnTypeWillChange] public function jsonSerialize() { return ['hex' => $this->toHex(true)]; } /** * Converts an Integer to a hex string (eg. base-16). * * @return string */ abstract public function toHex(); }