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105 lines
3.0 KiB
PHP
105 lines
3.0 KiB
PHP
<?php
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/**
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* Raw RSA Key Handler
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*
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* PHP version 5
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*
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* An array containing two \phpseclib\Math\BigInteger objects.
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*
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* The exponent can be indexed with any of the following:
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*
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* 0, e, exponent, publicExponent
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*
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* The modulus can be indexed with any of the following:
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*
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* 1, n, modulo, modulus
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*
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* @category Crypt
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* @package RSA
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* @author Jim Wigginton <terrafrost@php.net>
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* @copyright 2015 Jim Wigginton
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* @license http://www.opensource.org/licenses/mit-license.html MIT License
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* @link http://phpseclib.sourceforge.net
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*/
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namespace phpseclib\Crypt\RSA\Keys;
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use phpseclib\Math\BigInteger;
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/**
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* Raw RSA Key Handler
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*
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* @package RSA
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* @author Jim Wigginton <terrafrost@php.net>
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* @access public
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*/
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abstract class Raw
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{
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/**
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* Break a public or private key down into its constituent components
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*
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* @access public
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* @param string $key
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* @param string $password optional
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* @return array|bool
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*/
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public static function load($key, $password = '')
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{
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if (!is_array($key)) {
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return false;
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}
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if (isset($key['isPublicKey']) && isset($key['modulus'])) {
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if (isset($key['privateExponent']) || isset($key['publicExponent'])) {
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if (!isset($key['primes'])) {
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return $key;
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}
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if (isset($key['exponents']) && isset($key['coefficients']) && isset($key['publicExponent']) && isset($key['privateExponent'])) {
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return $key;
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}
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}
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}
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$components = ['isPublicKey' => true];
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switch (true) {
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case isset($key['e']):
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$components['publicExponent'] = $key['e'];
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break;
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case isset($key['exponent']):
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$components['publicExponent'] = $key['exponent'];
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break;
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case isset($key['publicExponent']):
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$components['publicExponent'] = $key['publicExponent'];
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break;
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case isset($key[0]):
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$components['publicExponent'] = $key[0];
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}
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switch (true) {
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case isset($key['n']):
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$components['modulus'] = $key['n'];
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break;
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case isset($key['modulo']):
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$components['modulus'] = $key['modulo'];
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break;
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case isset($key['modulus']):
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$components['modulus'] = $key['modulus'];
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break;
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case isset($key[1]):
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$components['modulus'] = $key[1];
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}
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return isset($components['modulus']) && isset($components['publicExponent']) ? $components : false;
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}
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/**
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* Convert a public key to the appropriate format
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*
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* @access public
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* @param \phpseclib\Math\BigInteger $n
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* @param \phpseclib\Math\BigInteger $e
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* @return array
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*/
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public static function savePublicKey(BigInteger $n, BigInteger $e)
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{
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return ['e' => clone $e, 'n' => clone $n];
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}
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}
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