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| Rev | Author | Line No. | Line |
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| 827 | daniel-mar | 1 | <?php |
| 2 | |||
| 3 | /** |
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| 4 | * Raw RSA Key Handler |
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| 5 | * |
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| 6 | * PHP version 5 |
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| 7 | * |
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| 8 | * An array containing two \phpseclib3\Math\BigInteger objects. |
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| 9 | * |
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| 10 | * The exponent can be indexed with any of the following: |
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| 11 | * |
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| 12 | * 0, e, exponent, publicExponent |
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| 13 | * |
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| 14 | * The modulus can be indexed with any of the following: |
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| 15 | * |
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| 16 | * 1, n, modulo, modulus |
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| 17 | * |
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| 874 | daniel-mar | 18 | * @category Crypt |
| 19 | * @package RSA |
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| 827 | daniel-mar | 20 | * @author Jim Wigginton <terrafrost@php.net> |
| 21 | * @copyright 2015 Jim Wigginton |
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| 22 | * @license http://www.opensource.org/licenses/mit-license.html MIT License |
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| 23 | * @link http://phpseclib.sourceforge.net |
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| 24 | */ |
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| 25 | |||
| 26 | namespace phpseclib3\Crypt\RSA\Formats\Keys; |
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| 27 | |||
| 28 | use phpseclib3\Math\BigInteger; |
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| 29 | |||
| 30 | /** |
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| 31 | * Raw RSA Key Handler |
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| 32 | * |
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| 874 | daniel-mar | 33 | * @package RSA |
| 827 | daniel-mar | 34 | * @author Jim Wigginton <terrafrost@php.net> |
| 874 | daniel-mar | 35 | * @access public |
| 827 | daniel-mar | 36 | */ |
| 37 | abstract class Raw |
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| 38 | { |
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| 39 | /** |
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| 40 | * Break a public or private key down into its constituent components |
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| 41 | * |
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| 874 | daniel-mar | 42 | * @access public |
| 827 | daniel-mar | 43 | * @param string $key |
| 44 | * @param string $password optional |
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| 45 | * @return array |
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| 46 | */ |
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| 47 | public static function load($key, $password = '') |
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| 48 | { |
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| 49 | if (!is_array($key)) { |
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| 50 | throw new \UnexpectedValueException('Key should be a array - not a ' . gettype($key)); |
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| 51 | } |
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| 52 | |||
| 53 | $key = array_change_key_case($key, CASE_LOWER); |
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| 54 | |||
| 55 | $components = ['isPublicKey' => false]; |
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| 56 | |||
| 57 | foreach (['e', 'exponent', 'publicexponent', 0, 'privateexponent', 'd'] as $index) { |
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| 58 | if (isset($key[$index])) { |
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| 59 | $components['publicExponent'] = $key[$index]; |
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| 60 | break; |
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| 61 | } |
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| 62 | } |
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| 63 | |||
| 64 | foreach (['n', 'modulo', 'modulus', 1] as $index) { |
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| 65 | if (isset($key[$index])) { |
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| 66 | $components['modulus'] = $key[$index]; |
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| 67 | break; |
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| 68 | } |
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| 69 | } |
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| 70 | |||
| 71 | if (!isset($components['publicExponent']) || !isset($components['modulus'])) { |
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| 72 | throw new \UnexpectedValueException('Modulus / exponent not present'); |
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| 73 | } |
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| 74 | |||
| 75 | if (isset($key['primes'])) { |
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| 76 | $components['primes'] = $key['primes']; |
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| 77 | } elseif (isset($key['p']) && isset($key['q'])) { |
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| 78 | $indices = [ |
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| 79 | ['p', 'q'], |
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| 80 | ['prime1', 'prime2'] |
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| 81 | ]; |
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| 82 | foreach ($indices as $index) { |
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| 83 | list($i0, $i1) = $index; |
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| 84 | if (isset($key[$i0]) && isset($key[$i1])) { |
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| 85 | $components['primes'] = [1 => $key[$i0], $key[$i1]]; |
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| 86 | } |
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| 87 | } |
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| 88 | } |
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| 89 | |||
| 90 | if (isset($key['exponents'])) { |
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| 91 | $components['exponents'] = $key['exponents']; |
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| 92 | } else { |
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| 93 | $indices = [ |
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| 94 | ['dp', 'dq'], |
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| 95 | ['exponent1', 'exponent2'] |
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| 96 | ]; |
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| 97 | foreach ($indices as $index) { |
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| 98 | list($i0, $i1) = $index; |
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| 99 | if (isset($key[$i0]) && isset($key[$i1])) { |
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| 100 | $components['exponents'] = [1 => $key[$i0], $key[$i1]]; |
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| 101 | } |
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| 102 | } |
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| 103 | } |
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| 104 | |||
| 105 | if (isset($key['coefficients'])) { |
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| 106 | $components['coefficients'] = $key['coefficients']; |
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| 107 | } else { |
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| 108 | foreach (['inverseq', 'q\'', 'coefficient'] as $index) { |
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| 109 | if (isset($key[$index])) { |
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| 110 | $components['coefficients'] = [2 => $key[$index]]; |
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| 111 | } |
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| 112 | } |
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| 113 | } |
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| 114 | |||
| 115 | if (!isset($components['primes'])) { |
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| 116 | $components['isPublicKey'] = true; |
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| 117 | return $components; |
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| 118 | } |
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| 119 | |||
| 120 | if (!isset($components['exponents'])) { |
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| 121 | $one = new BigInteger(1); |
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| 122 | $temp = $components['primes'][1]->subtract($one); |
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| 123 | $exponents = [1 => $components['publicExponent']->modInverse($temp)]; |
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| 124 | $temp = $components['primes'][2]->subtract($one); |
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| 125 | $exponents[] = $components['publicExponent']->modInverse($temp); |
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| 126 | $components['exponents'] = $exponents; |
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| 127 | } |
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| 128 | |||
| 129 | if (!isset($components['coefficients'])) { |
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| 130 | $components['coefficients'] = [2 => $components['primes'][2]->modInverse($components['primes'][1])]; |
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| 131 | } |
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| 132 | |||
| 133 | foreach (['privateexponent', 'd'] as $index) { |
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| 134 | if (isset($key[$index])) { |
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| 135 | $components['privateExponent'] = $key[$index]; |
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| 136 | break; |
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| 137 | } |
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| 138 | } |
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| 139 | |||
| 140 | return $components; |
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| 141 | } |
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| 142 | |||
| 143 | /** |
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| 144 | * Convert a private key to the appropriate format. |
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| 145 | * |
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| 874 | daniel-mar | 146 | * @access public |
| 827 | daniel-mar | 147 | * @param \phpseclib3\Math\BigInteger $n |
| 148 | * @param \phpseclib3\Math\BigInteger $e |
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| 149 | * @param \phpseclib3\Math\BigInteger $d |
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| 150 | * @param array $primes |
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| 151 | * @param array $exponents |
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| 152 | * @param array $coefficients |
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| 153 | * @param string $password optional |
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| 154 | * @param array $options optional |
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| 155 | * @return array |
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| 156 | */ |
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| 157 | public static function savePrivateKey(BigInteger $n, BigInteger $e, BigInteger $d, array $primes, array $exponents, array $coefficients, $password = '', array $options = []) |
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| 158 | { |
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| 159 | if (!empty($password) && is_string($password)) { |
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| 160 | throw new UnsupportedFormatException('Raw private keys do not support encryption'); |
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| 161 | } |
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| 162 | |||
| 163 | return [ |
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| 164 | 'e' => clone $e, |
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| 165 | 'n' => clone $n, |
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| 166 | 'd' => clone $d, |
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| 167 | 'primes' => array_map(function ($var) { |
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| 168 | return clone $var; |
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| 169 | }, $primes), |
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| 170 | 'exponents' => array_map(function ($var) { |
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| 171 | return clone $var; |
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| 172 | }, $exponents), |
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| 173 | 'coefficients' => array_map(function ($var) { |
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| 174 | return clone $var; |
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| 175 | }, $coefficients) |
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| 176 | ]; |
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| 177 | } |
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| 178 | |||
| 179 | /** |
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| 180 | * Convert a public key to the appropriate format |
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| 181 | * |
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| 874 | daniel-mar | 182 | * @access public |
| 827 | daniel-mar | 183 | * @param \phpseclib3\Math\BigInteger $n |
| 184 | * @param \phpseclib3\Math\BigInteger $e |
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| 185 | * @return array |
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| 186 | */ |
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| 187 | public static function savePublicKey(BigInteger $n, BigInteger $e) |
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| 188 | { |
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| 189 | return ['e' => clone $e, 'n' => clone $n]; |
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| 190 | } |
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| 191 | } |