| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * Trait implementation of the block cipher capabilities and actions for symmetric encryption algorithms. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | namespace CryptoManana\Core\Traits\MessageEncryption; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | use \CryptoManana\Core\Interfaces\MessageEncryption\BlockOperationsInterface as BlockOperationsSpecification; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * Trait BlockOperationsTrait - Reusable implementation of `BlockOperationsInterface`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * @see \CryptoManana\Core\Interfaces\MessageDigestion\BlockOperationsInterface The abstract specification. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  * @package CryptoManana\Core\Traits\MessageEncryption | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  * @property string $iv The initialization vector (IV) string property storage. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  * @property string $mode The block encryption operation mode string property. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  * @property int $padding The final block padding operation property. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  * @mixin BlockOperationsSpecification | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  | trait BlockOperationsTrait | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |      * Setter for the initialization vector (IV) string property. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |      * @param string $iv The initialization vector (IV) string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |      * @return $this The encryption algorithm object. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |      * @throws \Exception Validation errors. | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 33 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 34 |  |  |     public function setInitializationVector($iv) | 
            
                                                                        
                            
            
                                    
            
            
                | 35 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 36 |  |  |         if (!is_string($iv)) { | 
                            
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                | 37 |  |  |             throw new \InvalidArgumentException('The initialization vector must be a string or a binary string.'); | 
            
                                                                        
                            
            
                                    
            
            
                | 38 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 39 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 40 |  |  |         /** | 
            
                                                                        
                            
            
                                    
            
            
                | 41 |  |  |          * {@internal The encryption standard is 8-bit wise (don not use StringBuilder) and utilizes performance. }} | 
            
                                                                        
                            
            
                                    
            
            
                | 42 |  |  |          */ | 
            
                                                                        
                            
            
                                    
            
            
                | 43 |  |  |         if (strlen($iv) > static::IV_SIZE) { | 
                            
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                | 44 |  |  |             $iv = hash_hkdf('sha256', $iv, static::IV_SIZE, 'CryptoMañana', ''); | 
            
                                                                        
                            
            
                                    
            
            
                | 45 |  |  |         } elseif (strlen($iv) < static::IV_SIZE) { | 
            
                                                                        
                            
            
                                    
            
            
                | 46 |  |  |             $iv = str_pad($iv, static::IV_SIZE, "\x0", STR_PAD_RIGHT); | 
            
                                                                        
                            
            
                                    
            
            
                | 47 |  |  |         } | 
            
                                                                        
                            
            
                                    
            
            
                | 48 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 49 |  |  |         $this->iv = $iv; | 
            
                                                                        
                            
            
                                    
            
            
                | 50 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 51 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |      * Getter for the initialization vector (IV) string property. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      * @return string The initialization vector (IV) string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |     public function getInitializationVector() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |         return $this->iv; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |      * Setter for the block encryption operation mode string property. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |      * @param string $mode The block operation mode string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |      * @return $this The encryption algorithm object. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |      * @throws \Exception Validation errors. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |     public function setBlockOperationMode($mode) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |         $validModes = [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |             self::CBC_MODE, | 
                            
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                | 76 |  |  |             self::CFB_MODE, | 
                            
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                | 77 |  |  |             self::OFB_MODE, | 
                            
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                | 78 |  |  |             self::CTR_MODE, | 
                            
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                | 79 |  |  |             self::ECB_MODE | 
                            
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                | 80 |  |  |         ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |         if (!is_string($mode) || !in_array(strtoupper($mode), $validModes, true)) { | 
                            
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                | 83 |  |  |             throw new \InvalidArgumentException( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |                 'The mode of operation must be a string and be a standardized block mode name.' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |             ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |         $newMethodName = static::ALGORITHM_NAME . '-' . (static::KEY_SIZE * 8) . '-' . $mode; | 
                            
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                | 89 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |         // @codeCoverageIgnoreStart | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |         if (!in_array($newMethodName, openssl_get_cipher_methods(), true)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |             throw new \RuntimeException( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |                 'The algorithm `' . $newMethodName . '`is not supported under the current system configuration.' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |             ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |         // @codeCoverageIgnoreEnd | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |         $this->mode = strtoupper($mode); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |      * Getter for the block encryption operation mode string property. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |      * @return string The block operation mode string. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |     public function getBlockOperationMode() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |         return $this->mode; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |      * Setter for the final block padding operation property. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |      * @param int $padding The padding standard integer code value. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |      * @return $this The encryption algorithm object. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |      * @throws \Exception Validation errors. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |     public function setPaddingStandard($padding) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |         $padding = filter_var( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |             $padding, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |             FILTER_VALIDATE_INT, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |             [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |                 "options" => [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |                     "min_range" => self::PKCS7_PADDING, | 
                            
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                | 129 |  |  |                     "max_range" => self::ZERO_PADDING, | 
                            
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                | 130 |  |  |                 ], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |             ] | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |         if ($padding === false) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |             throw new \InvalidArgumentException( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |                 'The padding standard must must be a valid integer between ' . | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |                 self::PKCS7_PADDING . ' and ' . self::ZERO_PADDING . '.' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |             ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |         $this->padding = $padding; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |         return $this; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |      * Getter for the final block padding operation property. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |      * @return string The padding standard integer code value. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |     public function getPaddingStandard() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |         return $this->padding; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 155 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 156 |  |  |  |