.htaccess
1 year ago
Common.php
1 year ago
JWK.php
1 year ago
MontgomeryPrivate.php
1 year ago
MontgomeryPublic.php
1 year ago
OpenSSH.php
1 year ago
PKCS1.php
1 year ago
PKCS8.php
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PuTTY.php
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XML.php
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index.html
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libsodium.php
1 year ago
web.config
1 year ago
libsodium.php
109 lines
| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * libsodium Key Handler |
| 5 | * |
| 6 | * Different NaCl implementations store the key differently. |
| 7 | * https://blog.mozilla.org/warner/2011/11/29/ed25519-keys/ elaborates. |
| 8 | * libsodium appears to use the same format as SUPERCOP. |
| 9 | * |
| 10 | * PHP version 5 |
| 11 | * |
| 12 | * @author Jim Wigginton <terrafrost@php.net> |
| 13 | * @copyright 2015 Jim Wigginton |
| 14 | * @license http://www.opensource.org/licenses/mit-license.html MIT License |
| 15 | * @link http://phpseclib.sourceforge.net |
| 16 | */ |
| 17 | |
| 18 | declare(strict_types=1); |
| 19 | |
| 20 | namespace phpseclib3\Crypt\EC\Formats\Keys; |
| 21 | |
| 22 | use phpseclib3\Crypt\EC\Curves\Ed25519; |
| 23 | use phpseclib3\Exception\RuntimeException; |
| 24 | use phpseclib3\Exception\UnsupportedFormatException; |
| 25 | use phpseclib3\Math\BigInteger; |
| 26 | use phpseclib3\Math\Common\FiniteField\Integer; |
| 27 | |
| 28 | /** |
| 29 | * libsodium Key Handler |
| 30 | * |
| 31 | * @author Jim Wigginton <terrafrost@php.net> |
| 32 | */ |
| 33 | abstract class libsodium |
| 34 | { |
| 35 | use Common; |
| 36 | |
| 37 | /** |
| 38 | * Is invisible flag |
| 39 | */ |
| 40 | public const IS_INVISIBLE = true; |
| 41 | |
| 42 | /** |
| 43 | * Break a public or private key down into its constituent components |
| 44 | */ |
| 45 | public static function load(string $key, ?string $password = null): array |
| 46 | { |
| 47 | switch (strlen($key)) { |
| 48 | case 32: |
| 49 | $public = $key; |
| 50 | break; |
| 51 | case 64: |
| 52 | $private = substr($key, 0, 32); |
| 53 | $public = substr($key, -32); |
| 54 | break; |
| 55 | case 96: |
| 56 | $public = substr($key, -32); |
| 57 | if (substr($key, 32, 32) != $public) { |
| 58 | throw new RuntimeException('Keys with 96 bytes should have the 2nd and 3rd set of 32 bytes match'); |
| 59 | } |
| 60 | $private = substr($key, 0, 32); |
| 61 | break; |
| 62 | default: |
| 63 | throw new RuntimeException('libsodium keys need to either be 32 bytes long, 64 bytes long or 96 bytes long'); |
| 64 | } |
| 65 | |
| 66 | $curve = new Ed25519(); |
| 67 | $components = ['curve' => $curve]; |
| 68 | if (isset($private)) { |
| 69 | $arr = $curve->extractSecret($private); |
| 70 | $components['dA'] = $arr['dA']; |
| 71 | $components['secret'] = $arr['secret']; |
| 72 | } |
| 73 | $components['QA'] = isset($public) ? |
| 74 | self::extractPoint($public, $curve) : |
| 75 | $curve->multiplyPoint($curve->getBasePoint(), $components['dA']); |
| 76 | |
| 77 | return $components; |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Convert an EC public key to the appropriate format |
| 82 | * |
| 83 | * @param Integer[] $publicKey |
| 84 | */ |
| 85 | public static function savePublicKey(Ed25519 $curve, array $publicKey): string |
| 86 | { |
| 87 | return $curve->encodePoint($publicKey); |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * Convert a private key to the appropriate format. |
| 92 | * |
| 93 | * @param Integer[] $publicKey |
| 94 | */ |
| 95 | public static function savePrivateKey(BigInteger $privateKey, Ed25519 $curve, array $publicKey, ?string $secret = null, ?string $password = null): string |
| 96 | { |
| 97 | if (!isset($secret)) { |
| 98 | throw new RuntimeException('Private Key does not have a secret set'); |
| 99 | } |
| 100 | if (strlen($secret) != 32) { |
| 101 | throw new RuntimeException('Private Key secret is not of the correct length'); |
| 102 | } |
| 103 | if (!empty($password) && is_string($password)) { |
| 104 | throw new UnsupportedFormatException('libsodium private keys do not support encryption'); |
| 105 | } |
| 106 | return $secret . $curve->encodePoint($publicKey); |
| 107 | } |
| 108 | } |
| 109 |