* @copyright 2015 Jim Wigginton * @license http://www.opensource.org/licenses/mit-license.html MIT License * @link http://phpseclib.sourceforge.net */ namespace phpseclib\Crypt\RSA; use phpseclib\Math\BigInteger; /** * Raw RSA Key Handler * * @package RSA * @author Jim Wigginton * @access public */ class Raw { /** * Break a public or private key down into its constituent components * * @access public * @param string $key * @param string $password optional * @return array */ static function load($key, $password = '') { if (!is_array($key)) { return false; } if (isset($key['isPublicKey']) && isset($key['modulus'])) { if (isset($key['privateExponent']) || isset($key['publicExponent'])) { if (!isset($key['primes'])) { return $key; } if (isset($key['exponents']) && isset($key['coefficients']) && isset($key['publicExponent']) && isset($key['privateExponent'])) { return $key; } } } $components = array('isPublicKey' => true); switch (true) { case isset($key['e']): $components['publicExponent'] = $key['e']; break; case isset($key['exponent']): $components['publicExponent'] = $key['exponent']; break; case isset($key['publicExponent']): $components['publicExponent'] = $key['publicExponent']; break; case isset($key[0]): $components['publicExponent'] = $key[0]; } switch (true) { case isset($key['n']): $components['modulus'] = $key['n']; break; case isset($key['modulo']): $components['modulus'] = $key['modulo']; break; case isset($key['modulus']): $components['modulus'] = $key['modulus']; break; case isset($key[1]): $components['modulus'] = $key[1]; } return isset($components['modulus']) && isset($components['publicExponent']) ? $components : false; } /** * Convert a public key to the appropriate format * * @access public * @param \phpseclib\Math\BigInteger $n * @param \phpseclib\Math\BigInteger $e * @return string */ static function savePublicKey(BigInteger $n, BigInteger $e) { return array('e' => clone $e, 'n' => clone $n); } }