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Rev | Author | Line No. | Line |
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30 | daniel-mar | 1 | <?php |
2 | |||
3 | /* |
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4 | * OpenSSL php functions implemented using phpseclib |
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5 | * Copyright 2022 Daniel Marschall, ViaThinkSoft |
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34 | daniel-mar | 6 | * Version 2022-07-17 |
30 | daniel-mar | 7 | * |
8 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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9 | * you may not use this file except in compliance with the License. |
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10 | * You may obtain a copy of the License at |
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11 | * |
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12 | * http://www.apache.org/licenses/LICENSE-2.0 |
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13 | * |
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14 | * Unless required by applicable law or agreed to in writing, software |
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15 | * distributed under the License is distributed on an "AS IS" BASIS, |
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16 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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17 | * See the License for the specific language governing permissions and |
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18 | * limitations under the License. |
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19 | */ |
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20 | |||
21 | // How to use this supplement: |
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22 | // 1. Include phpseclib using composer and include the autoloader |
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23 | // 2. Then, include this file. The openssl functions are now available. |
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24 | |||
25 | // ATTENTION: This supplement/polyfill does only implement a few openssl_*() functions, |
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26 | // and only a few algorithms: AES and RSA! Feel free to extend this library! |
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27 | // The sign/verify and encrypt/decrypt functions should be binary compatible with |
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28 | // the actual openssl functions. |
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29 | |||
30 | if (!function_exists('openssl_pkey_new') && class_exists('\\phpseclib3\\Crypt\\RSA')) { |
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31 | |||
32 | define('OPENSSL_SUPPLEMENT', 1); |
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33 | |||
34 | daniel-mar | 34 | // --------------------------------------------------------------------- |
30 | daniel-mar | 35 | |
34 | daniel-mar | 36 | // https://www.php.net/manual/en/openssl.purpose-check.php |
37 | if (!defined('X509_PURPOSE_SSL_CLIENT')) define('X509_PURPOSE_SSL_CLIENT', 1); |
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38 | if (!defined('X509_PURPOSE_SSL_SERVER')) define('X509_PURPOSE_SSL_SERVER', 2); |
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39 | if (!defined('X509_PURPOSE_NS_SSL_SERVER')) define('X509_PURPOSE_NS_SSL_SERVER', 3); |
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40 | if (!defined('X509_PURPOSE_SMIME_SIGN')) define('X509_PURPOSE_SMIME_SIGN', 4); |
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41 | if (!defined('X509_PURPOSE_SMIME_ENCRYPT')) define('X509_PURPOSE_SMIME_ENCRYPT', 5); |
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42 | if (!defined('X509_PURPOSE_CRL_SIGN')) define('X509_PURPOSE_CRL_SIGN', 6); |
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43 | if (!defined('X509_PURPOSE_ANY')) define('X509_PURPOSE_ANY', 7); |
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44 | |||
45 | // https://www.php.net/manual/en/openssl.padding.php |
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46 | if (!defined('OPENSSL_PKCS1_PADDING')) define('OPENSSL_PKCS1_PADDING', 1); |
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47 | if (!defined('OPENSSL_SSLV23_PADDING')) define('OPENSSL_SSLV23_PADDING', 2); |
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48 | if (!defined('OPENSSL_NO_PADDING')) define('OPENSSL_NO_PADDING', 3); |
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49 | if (!defined('OPENSSL_PKCS1_OAEP_PADDING')) define('OPENSSL_PKCS1_OAEP_PADDING', 4); |
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50 | |||
51 | // https://www.php.net/manual/en/openssl.key-types.php |
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30 | daniel-mar | 52 | if (!defined('OPENSSL_KEYTYPE_RSA')) define('OPENSSL_KEYTYPE_RSA', 0); |
34 | daniel-mar | 53 | if (!defined('OPENSSL_KEYTYPE_DSA')) define('OPENSSL_KEYTYPE_DSA', 1); |
54 | if (!defined('OPENSSL_KEYTYPE_DH')) define('OPENSSL_KEYTYPE_DH', 2); |
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55 | if (!defined('OPENSSL_KEYTYPE_EC')) define('OPENSSL_KEYTYPE_EC', 3); |
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30 | daniel-mar | 56 | |
34 | daniel-mar | 57 | // https://www.php.net/manual/en/openssl.pkcs7.flags.php |
58 | if (!defined('PKCS7_TEXT')) define('PKCS7_TEXT', 1); |
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59 | if (!defined('PKCS7_BINARY')) define('PKCS7_BINARY', 128); |
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60 | if (!defined('PKCS7_NOINTERN')) define('PKCS7_NOINTERN', 16); |
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61 | if (!defined('PKCS7_NOVERIFY')) define('PKCS7_NOVERIFY', 32); |
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62 | if (!defined('PKCS7_NOCHAIN')) define('PKCS7_NOCHAIN', 8); |
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63 | if (!defined('PKCS7_NOCERTS')) define('PKCS7_NOCERTS', 2); |
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64 | if (!defined('PKCS7_NOATTR')) define('PKCS7_NOATTR', 256); |
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65 | if (!defined('PKCS7_DETACHED')) define('PKCS7_DETACHED', 64); |
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66 | if (!defined('PKCS7_NOSIGS')) define('PKCS7_NOSIGS', 4); |
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30 | daniel-mar | 67 | |
34 | daniel-mar | 68 | // https://www.php.net/manual/en/openssl.cms.flags.php |
69 | if (!defined('OPENSSL_CMS_TEXT')) define('OPENSSL_CMS_TEXT', 1); |
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70 | if (!defined('OPENSSL_CMS_BINARY')) define('OPENSSL_CMS_BINARY', 128); |
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71 | if (!defined('OPENSSL_CMS_NOINTERN')) define('OPENSSL_CMS_NOINTERN', 16); |
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72 | if (!defined('OPENSSL_CMS_NOVERIFY')) define('OPENSSL_CMS_NOVERIFY', 32); |
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73 | if (!defined('OPENSSL_CMS_NOCERTS')) define('OPENSSL_CMS_NOCERTS', 2); |
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74 | if (!defined('OPENSSL_CMS_NOATTR')) define('OPENSSL_CMS_NOATTR', 256); |
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75 | if (!defined('OPENSSL_CMS_DETACHED')) define('OPENSSL_CMS_DETACHED', 64); |
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76 | if (!defined('OPENSSL_CMS_NOSIGS')) define('OPENSSL_CMS_NOSIGS', 12); |
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77 | |||
78 | // https://www.php.net/manual/en/openssl.signature-algos.php |
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79 | if (!defined('OPENSSL_ALGO_DSS1')) define('OPENSSL_ALGO_DSS1', 5); // Only defined when php/openssl compiled with MD2 support |
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30 | daniel-mar | 80 | if (!defined('OPENSSL_ALGO_SHA1')) define('OPENSSL_ALGO_SHA1', 1); |
81 | if (!defined('OPENSSL_ALGO_SHA224')) define('OPENSSL_ALGO_SHA224', 6); |
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82 | if (!defined('OPENSSL_ALGO_SHA256')) define('OPENSSL_ALGO_SHA256', 7); |
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83 | if (!defined('OPENSSL_ALGO_SHA384')) define('OPENSSL_ALGO_SHA384', 8); |
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84 | if (!defined('OPENSSL_ALGO_SHA512')) define('OPENSSL_ALGO_SHA512', 9); |
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85 | if (!defined('OPENSSL_ALGO_RMD160')) define('OPENSSL_ALGO_RMD160', 10); |
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86 | if (!defined('OPENSSL_ALGO_MD5')) define('OPENSSL_ALGO_MD5', 2); |
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87 | if (!defined('OPENSSL_ALGO_MD4')) define('OPENSSL_ALGO_MD4', 3); |
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34 | daniel-mar | 88 | if (!defined('OPENSSL_ALGO_MD2')) define('OPENSSL_ALGO_MD2', 4); // Only defined when php/openssl compiled with MD2 support |
30 | daniel-mar | 89 | |
34 | daniel-mar | 90 | // https://www.php.net/manual/en/openssl.ciphers.php |
91 | if (!defined('OPENSSL_CIPHER_RC2_40')) define('OPENSSL_CIPHER_RC2_40', 0); |
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92 | if (!defined('OPENSSL_CIPHER_RC2_128')) define('OPENSSL_CIPHER_RC2_128', 1); |
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93 | if (!defined('OPENSSL_CIPHER_RC2_64')) define('OPENSSL_CIPHER_RC2_64', 2); |
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94 | if (!defined('OPENSSL_CIPHER_DES')) define('OPENSSL_CIPHER_DES', 3); |
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95 | if (!defined('OPENSSL_CIPHER_3DES')) define('OPENSSL_CIPHER_3DES', 4); |
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96 | if (!defined('OPENSSL_CIPHER_AES_128_CBC')) define('OPENSSL_CIPHER_AES_128_CBC', 5); |
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97 | if (!defined('OPENSSL_CIPHER_AES_192_CBC')) define('OPENSSL_CIPHER_AES_192_CBC', 6); |
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98 | if (!defined('OPENSSL_CIPHER_AES_256_CBC')) define('OPENSSL_CIPHER_AES_256_CBC', 7); |
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99 | |||
100 | // https://www.php.net/manual/en/openssl.constversion.php |
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101 | // OPENSSL_VERSION_TEXT (string) |
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102 | // OPENSSL_VERSION_NUMBER (int) |
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103 | |||
104 | // https://www.php.net/manual/en/openssl.constsni.php |
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105 | // OPENSSL_TLSEXT_SERVER_NAME (string) |
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106 | |||
107 | // https://www.php.net/manual/en/openssl.constants.other.php |
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108 | if (!defined('OPENSSL_RAW_DATA')) define('OPENSSL_RAW_DATA', 1); |
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109 | if (!defined('OPENSSL_ZERO_PADDING')) define('OPENSSL_ZERO_PADDING', 2); |
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110 | if (!defined('OPENSSL_ENCODING_SMIME')) define('OPENSSL_ENCODING_SMIME', 1); |
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111 | if (!defined('OPENSSL_ENCODING_DER')) define('OPENSSL_ENCODING_DER', 0); |
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112 | if (!defined('OPENSSL_ENCODING_PEM')) define('OPENSSL_ENCODING_PEM', 2); |
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113 | |||
114 | // --------------------------------------------------------------------- |
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115 | |||
116 | $openssl_supplement_last_error = ''; |
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117 | |||
30 | daniel-mar | 118 | function openssl_pkey_new($pkey_config=null) { |
119 | try { |
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120 | $algo = $pkey_config && isset($pkey_config["private_key_type"]) ? $pkey_config["private_key_type"] : OPENSSL_KEYTYPE_RSA; |
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121 | $bits = $pkey_config && isset($pkey_config["private_key_bits"]) ? $pkey_config["private_key_bits"] : 2048; |
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122 | |||
31 | daniel-mar | 123 | // TODO: Also support $pkey_config['encrypt_key'] and $pkey_config['encrypt_key_cipher'] ? |
124 | |||
30 | daniel-mar | 125 | if ($algo == OPENSSL_KEYTYPE_RSA) { |
126 | $private = \phpseclib3\Crypt\RSA::createKey($bits); |
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127 | } else { |
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128 | throw new Exception("Algo not implemented"); |
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129 | } |
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130 | |||
131 | $private = $private->withPadding(\phpseclib3\Crypt\RSA::ENCRYPTION_PKCS1 | \phpseclib3\Crypt\RSA::SIGNATURE_PKCS1); |
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132 | |||
133 | $public = $private->getPublicKey()->withPadding(\phpseclib3\Crypt\RSA::ENCRYPTION_PKCS1 | \phpseclib3\Crypt\RSA::SIGNATURE_PKCS1); |
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134 | |||
135 | return array($algo, $bits, $private, $public); |
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136 | } catch (Exception $e) { |
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137 | global $openssl_supplement_last_error; |
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138 | $openssl_supplement_last_error = $e->getMessage(); |
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139 | return false; |
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140 | } |
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141 | } |
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142 | |||
143 | function openssl_pkey_export($res, &$privKey, $passphrase = null, $options = null) { |
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144 | try { |
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31 | daniel-mar | 145 | if ($res instanceof \phpseclib3\Crypt\Common\PrivateKey /*\phpseclib3\Crypt\RSA\PrivateKey*/ ) { |
146 | $privKey = $res; |
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147 | if (!is_null($passphrase)) { |
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148 | $privKey = $res->withPassword($passphrase); |
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149 | } |
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150 | $privKey = $privKey.""; |
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151 | return true; |
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152 | } else if (is_string($res)) { |
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153 | $privKey = $res; |
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154 | if (!is_null($passphrase)) { |
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155 | $privKey = \phpseclib3\Crypt\RSA::load($privKey); |
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156 | $privKey = $res->withPassword($passphrase); |
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157 | $privKey = $privKey.""; |
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158 | } |
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159 | return true; |
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160 | } else if (is_array($res)) { |
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161 | $privKey = $res[2].""; |
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162 | if (!is_null($passphrase)) { |
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163 | $privKey = \phpseclib3\Crypt\RSA::load($privKey); |
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164 | $privKey = $res->withPassword($passphrase); |
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165 | $privKey = $privKey.""; |
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166 | } |
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167 | return true; |
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168 | } else { |
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169 | throw new Exception("Invalid input datatype"); |
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170 | } |
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30 | daniel-mar | 171 | } catch (Exception $e) { |
172 | global $openssl_supplement_last_error; |
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173 | $openssl_supplement_last_error = $e->getMessage(); |
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174 | return false; |
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175 | } |
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176 | } |
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177 | |||
178 | function openssl_pkey_get_details($res) { |
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179 | return array( |
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180 | "bits" => $res[1], |
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181 | "key" => $res[3]."", |
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182 | "type" => $res[0] |
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183 | ); |
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184 | } |
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185 | |||
186 | function openssl_public_encrypt($data, &$encrypted, $pubKey) { |
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187 | try { |
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188 | if (is_string($pubKey)) $pubKey = openssl_pkey_get_public($pubKey); |
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31 | daniel-mar | 189 | if (!is_object($pubKey) || !method_exists($pubKey,'encrypt')) |
190 | throw new Exception("Invalid input datatype"); |
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30 | daniel-mar | 191 | $encrypted = $pubKey->encrypt($data); |
192 | return true; |
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193 | } catch (Exception $e) { |
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194 | global $openssl_supplement_last_error; |
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195 | $openssl_supplement_last_error = $e->getMessage(); |
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196 | return false; |
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197 | } |
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198 | } |
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199 | |||
200 | function openssl_private_decrypt($encrypted, &$decrypted, $privKey) { |
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201 | try { |
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202 | if (is_string($privKey)) $privKey = openssl_pkey_get_private($privKey); |
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31 | daniel-mar | 203 | if (!is_object($privKey) || !method_exists($privKey,'decrypt')) |
204 | throw new Exception("Invalid input datatype"); |
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30 | daniel-mar | 205 | $decrypted = $privKey->decrypt($encrypted); |
206 | return true; |
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207 | } catch (Exception $e) { |
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208 | global $openssl_supplement_last_error; |
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209 | $openssl_supplement_last_error = $e->getMessage(); |
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210 | return false; |
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211 | } |
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212 | } |
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213 | |||
214 | function openssl_verify($msg, $signature, $public, $algorithm=OPENSSL_ALGO_SHA1) { |
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215 | try { |
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216 | if ($algorithm == OPENSSL_ALGO_SHA1) $algorithm = 'SHA1'; |
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217 | if ($algorithm == OPENSSL_ALGO_SHA224) $algorithm = 'SHA224'; |
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34 | daniel-mar | 218 | if ($algorithm == OPENSSL_ALGO_SHA256) $algorithm = 'SHA256'; |
30 | daniel-mar | 219 | if ($algorithm == OPENSSL_ALGO_SHA384) $algorithm = 'SHA384'; |
220 | if ($algorithm == OPENSSL_ALGO_SHA512) $algorithm = 'SHA512'; |
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221 | if ($algorithm == OPENSSL_ALGO_RMD160) $algorithm = 'RMD160'; |
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222 | if ($algorithm == OPENSSL_ALGO_MD5) $algorithm = 'MD5'; |
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223 | if ($algorithm == OPENSSL_ALGO_MD4) $algorithm = 'MD4'; |
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224 | if (is_string($public)) $public = openssl_pkey_get_public($public); |
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31 | daniel-mar | 225 | if (!is_object($public) || !method_exists($public,'verify')) |
226 | throw new Exception("Invalid input datatype"); |
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30 | daniel-mar | 227 | return $public->withHash($algorithm)->verify($msg, $signature) ? 1 : 0; |
228 | } catch (Exception $e) { |
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229 | global $openssl_supplement_last_error; |
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230 | $openssl_supplement_last_error = $e->getMessage(); |
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231 | return false; |
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232 | } |
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233 | } |
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234 | |||
235 | function openssl_sign($msg, &$signature, $private, $algorithm=OPENSSL_ALGO_SHA1) { |
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236 | try { |
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237 | if ($algorithm == OPENSSL_ALGO_SHA1) $algorithm = 'SHA1'; |
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238 | if ($algorithm == OPENSSL_ALGO_SHA224) $algorithm = 'SHA224'; |
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34 | daniel-mar | 239 | if ($algorithm == OPENSSL_ALGO_SHA256) $algorithm = 'SHA256'; |
30 | daniel-mar | 240 | if ($algorithm == OPENSSL_ALGO_SHA384) $algorithm = 'SHA384'; |
241 | if ($algorithm == OPENSSL_ALGO_SHA512) $algorithm = 'SHA512'; |
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242 | if ($algorithm == OPENSSL_ALGO_RMD160) $algorithm = 'RMD160'; |
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243 | if ($algorithm == OPENSSL_ALGO_MD5) $algorithm = 'MD5'; |
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244 | if ($algorithm == OPENSSL_ALGO_MD4) $algorithm = 'MD4'; |
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245 | if (is_string($private)) $private = openssl_pkey_get_private($private); |
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31 | daniel-mar | 246 | if (!is_object($private) || !method_exists($private,'sign')) |
247 | throw new Exception("Invalid input datatype"); |
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30 | daniel-mar | 248 | $signature = $private->withHash($algorithm)->sign($msg); |
249 | return true; |
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250 | } catch (Exception $e) { |
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251 | global $openssl_supplement_last_error; |
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252 | $openssl_supplement_last_error = $e->getMessage(); |
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253 | return false; |
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254 | } |
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255 | } |
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256 | |||
257 | function openssl_error_string() { |
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258 | global $openssl_supplement_last_error; |
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34 | daniel-mar | 259 | $res = $openssl_supplement_last_error; |
260 | $openssl_supplement_last_error = ''; |
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261 | return $res; |
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30 | daniel-mar | 262 | } |
263 | |||
264 | function openssl_random_pseudo_bytes($len) { |
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265 | /* |
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266 | if (function_exists('openssl_random_pseudo_bytes')) { |
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267 | $a = openssl_random_pseudo_bytes($len); |
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268 | if ($a) return $a; |
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269 | } |
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270 | */ |
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271 | |||
272 | if (function_exists('mcrypt_create_iv')) { |
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273 | $a = bin2hex(mcrypt_create_iv($len, MCRYPT_DEV_URANDOM)); |
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274 | if ($a) return $a; |
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275 | } |
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276 | |||
277 | if (function_exists('random_bytes')) { |
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278 | $a = random_bytes($len); |
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279 | if ($a) return $a; |
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280 | } |
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281 | |||
282 | // Fallback to non-secure RNG |
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283 | $a = ''; |
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284 | while (strlen($a) < $len*2) { |
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285 | $a .= sha1(uniqid((string)mt_rand(), true)); |
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286 | } |
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287 | $a = substr($a, 0, $len*2); |
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288 | return hex2bin($a); |
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289 | } |
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290 | |||
291 | function openssl_encrypt($data, $cipher_algo, $passphrase, $options=0, $iv="", &$tag=null, $aad="", $tag_length=16) { |
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292 | try { |
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293 | if (!is_null($tag)) throw new Exception("tag not implemented"); |
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294 | if ($aad != "") throw new Exception("aad not implemented"); |
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295 | if ($tag_length != 16) throw new Exception("tag_length not implemented"); |
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296 | if (!preg_match('@AES\\-(.+)\\-(.+)@i', $cipher_algo, $m)) throw new Exception("Algo not implemented"); |
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297 | if (($options & OPENSSL_ZERO_PADDING) != 0) throw new Exception("OPENSSL_ZERO_PADDING not implemented"); |
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298 | $aes = new \phpseclib3\Crypt\AES($m[2]); |
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299 | $aes->setKeyLength($m[1]); |
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300 | $passphrase = substr($passphrase, 0, $m[1]/8); |
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301 | $passphrase = str_pad($passphrase, $m[1]/8, "\0", STR_PAD_RIGHT); |
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302 | $aes->setKey($passphrase); |
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303 | $aes->setIV($iv); |
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304 | $res = $aes->encrypt($data); |
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305 | if (($options & OPENSSL_RAW_DATA) == 0) $res = base64_encode($res); |
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306 | return $res; |
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307 | } catch (Exception $e) { |
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308 | global $openssl_supplement_last_error; |
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309 | $openssl_supplement_last_error = $e->getMessage(); |
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310 | return false; |
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311 | } |
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312 | } |
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313 | |||
314 | function openssl_decrypt($data, $cipher_algo, $passphrase, $options=0, $iv="", $tag=null, $aad="") { |
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315 | try { |
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316 | if (!is_null($tag)) throw new Exception("tag not implemented"); |
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317 | if ($aad != "") throw new Exception("aad not implemented"); |
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318 | if (!preg_match('@AES\\-(.+)\\-(.+)@i', $cipher_algo, $m)) throw new Exception("Algo not implemented"); |
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319 | if (($options & OPENSSL_ZERO_PADDING) != 0) throw new Exception("OPENSSL_ZERO_PADDING not implemented"); |
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320 | $aes = new \phpseclib3\Crypt\AES($m[2]); |
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321 | $aes->setKeyLength($m[1]); |
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322 | $passphrase = substr($passphrase, 0, $m[1]/8); |
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323 | $passphrase = str_pad($passphrase, $m[1]/8, "\0", STR_PAD_RIGHT); |
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324 | $aes->setKey($passphrase); |
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325 | $aes->setIV($iv); |
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326 | if (($options & OPENSSL_RAW_DATA) == 0) $data = base64_decode($data); |
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327 | return $aes->decrypt($data); |
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328 | } catch (Exception $e) { |
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329 | global $openssl_supplement_last_error; |
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330 | $openssl_supplement_last_error = $e->getMessage(); |
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331 | return false; |
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332 | } |
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333 | } |
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334 | |||
335 | function openssl_free_key($key) { |
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336 | // does nothing |
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337 | } |
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338 | |||
34 | daniel-mar | 339 | function openssl_get_privatekey($key, $passphrase=null) { |
340 | return openssl_pkey_get_private($key, $passphrase=null); |
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341 | } |
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342 | |||
30 | daniel-mar | 343 | function openssl_pkey_get_private($key, $passphrase=null) { |
344 | try { |
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345 | if (substr($key,0,7) === 'file://') { |
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346 | if (!file_exists($file = substr($key, 7))) throw new Exception("file not found"); |
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347 | $key = file_get_contents($file); |
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348 | } |
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349 | if (is_null($passphrase)) $passphrase = false; |
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350 | $privKey = \phpseclib3\Crypt\RSA::load($key, $passphrase); |
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31 | daniel-mar | 351 | return $privKey->withPassword(false)->withPadding(\phpseclib3\Crypt\RSA::ENCRYPTION_PKCS1 | \phpseclib3\Crypt\RSA::SIGNATURE_PKCS1); /** @phpstan-ignore-line */ // Call to an undefined method phpseclib3\Crypt\Common\AsymmetricKey::withPadding(). |
30 | daniel-mar | 352 | } catch (Exception $e) { |
353 | global $openssl_supplement_last_error; |
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354 | $openssl_supplement_last_error = $e->getMessage(); |
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355 | return false; |
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356 | } |
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357 | } |
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358 | |||
34 | daniel-mar | 359 | function openssl_get_publickey($public_key) { |
360 | return openssl_pkey_get_public($public_key); |
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361 | } |
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362 | |||
30 | daniel-mar | 363 | function openssl_pkey_get_public($public_key) { |
364 | try { |
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365 | if (substr($public_key,0,7) === 'file://') { |
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366 | if (!file_exists($file = substr($public_key, 7))) throw new Exception("file not found"); |
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367 | $public_key = file_get_contents($file); |
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368 | } |
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369 | $pubKey = \phpseclib3\Crypt\RSA::load($public_key); |
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370 | return $pubKey->withPadding(\phpseclib3\Crypt\RSA::ENCRYPTION_PKCS1 | \phpseclib3\Crypt\RSA::SIGNATURE_PKCS1); /** @phpstan-ignore-line */ // Call to an undefined method phpseclib3\Crypt\Common\AsymmetricKey::withPadding(). |
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371 | } catch (Exception $e) { |
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372 | global $openssl_supplement_last_error; |
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373 | $openssl_supplement_last_error = $e->getMessage(); |
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374 | return false; |
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375 | } |
||
376 | } |
||
377 | |||
34 | daniel-mar | 378 | function openssl_pkey_free($key) { |
379 | } |
||
380 | |||
30 | daniel-mar | 381 | } |