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<?php |
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/** |
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* Trait implementation of the data padding capabilities and actions for asymmetric encryption algorithms. |
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*/ |
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namespace CryptoManana\Core\Traits\MessageEncryption; |
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use CryptoManana\Core\Interfaces\MessageEncryption\AsymmetricPaddingInterface as AsymmetricPaddingSpecification; |
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/** |
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* Trait AsymmetricPaddingTrait - Reusable implementation of `AsymmetricPaddingInterface`. |
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* |
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* @see \CryptoManana\Core\Interfaces\MessageDigestion\AsymmetricPaddingInterface The abstract specification. |
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* |
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* @package CryptoManana\Core\Traits\MessageEncryption |
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* |
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* @property int $padding The asymmetric data padding operation property. |
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* @property bool $useChunks Flag for enabling/disabling data processing via chunks. |
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* |
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* @mixin AsymmetricPaddingSpecification |
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*/ |
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trait AsymmetricPaddingTrait |
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{ |
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/** |
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* Setter for the asymmetric data padding operation property. |
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* |
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* @param int $padding The padding standard integer code value. |
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* |
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* @return $this The asymmetric encryption algorithm object. |
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* @throws \Exception Validation errors. |
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*/ |
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public function setPaddingStandard($padding) |
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{ |
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$validPadding = [ |
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self::PKCS1_PADDING, |
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self::OAEP_PADDING, |
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]; |
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$padding = filter_var( |
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$padding, |
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FILTER_VALIDATE_INT, |
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[ |
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"options" => [ |
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"min_range" => 1, |
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"max_range" => PHP_INT_MAX, |
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], |
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] |
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); |
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if ($padding === false || !in_array($padding, $validPadding, true)) { |
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throw new \InvalidArgumentException( |
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'The digestion algorithm standard must be a valid integer bigger than 0.' |
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); |
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} |
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$this->padding = $padding; |
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return $this; |
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} |
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/** |
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* Getter for the asymmetric data padding operation property. |
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* |
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* @return string The padding standard integer code value. |
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*/ |
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public function getPaddingStandard() |
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{ |
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return $this->padding; |
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} |
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/** |
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* Getter for the minimum size of the padding bytes that are required/reserved by the algorithm. |
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* |
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* @return int The minimum reserved size of the padding bytes. |
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*/ |
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public function getPaddingReservedSize() |
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{ |
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/** |
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* {@internal The reserved byte size for the PKCS1 standard is 11 and for the OAEP is 42. }} |
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*/ |
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return ($this->padding === OPENSSL_PKCS1_PADDING) ? 11 : 42; |
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} |
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/** |
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* Enable long data processing via small chunks. |
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* |
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* @return $this The asymmetric encryption algorithm object. |
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* |
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* @note Using data chunks with asymmetric algorithms is discouraged. |
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*/ |
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public function enableChunkProcessing() |
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{ |
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$this->useChunks = true; |
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return $this; |
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} |
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/** |
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* Disable long data processing via small chunks. |
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* |
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* @return $this The asymmetric encryption algorithm object. |
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* |
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* @note Using data chunks with asymmetric algorithms is discouraged. |
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*/ |
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public function disableChunkProcessing() |
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{ |
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$this->useChunks = false; |
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return $this; |
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} |
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} |
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TonyKaravasilev /
CryptoManana
