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<?php |
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namespace Shetabit\Multipay\Drivers\Pasargad\Utils; |
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use Shetabit\Multipay\Drivers\Pasargad\Utils\RSA; |
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class RSAProcessor |
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{ |
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public const KEY_TYPE_XML_FILE = 'xml_file'; |
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public const KEY_TYPE_XML_STRING = 'xml_string'; |
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private $publicKey = null; |
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private $privateKey = null; |
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private $modulus = null; |
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private $keyLength = "1024"; |
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public function __construct($key, $keyType = null) |
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{ |
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$xmlObject = null; |
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$keyType = is_null($keyType) ? null : strtolower($keyType); |
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if ($keyType == null || $keyType == self::KEY_TYPE_XML_STRING) { |
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$xmlObject = simplexml_load_string($key); |
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} elseif ($keyType == self::KEY_TYPE_XML_FILE) { |
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$xmlObject = simplexml_load_file($key); |
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} |
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$this->modulus = RSA::binaryToNumber(base64_decode($xmlObject->Modulus)); |
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$this->publicKey = RSA::binaryToNumber(base64_decode($xmlObject->Exponent)); |
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$this->privateKey = RSA::binaryToNumber(base64_decode($xmlObject->D)); |
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$this->keyLength = strlen(base64_decode($xmlObject->Modulus)) * 8; |
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} |
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/** |
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* Retrieve public key |
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* |
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* @return string|null |
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*/ |
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public function getPublicKey() |
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{ |
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return $this->publicKey; |
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} |
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/** |
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* Retrieve private key |
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* |
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* @return string|null |
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*/ |
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public function getPrivateKey() |
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{ |
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return $this->privateKey; |
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} |
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/** |
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* Retrieve key length |
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* |
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* @return integer |
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*/ |
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public function getKeyLength() |
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{ |
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return $this->keyLength; |
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} |
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/** |
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* Retrieve modulus |
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* @return string|null |
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*/ |
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public function getModulus() |
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{ |
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return $this->modulus; |
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} |
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/** |
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* Encrypt given data |
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* |
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* @param string $data |
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* |
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* @return string |
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*/ |
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public function encrypt($data) |
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{ |
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return base64_encode(RSA::rsaEncrypt($data, $this->publicKey, $this->modulus, $this->keyLength)); |
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} |
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/** |
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* Decrypt given data |
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* |
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* @param $data |
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* |
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* @return string |
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*/ |
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public function decrypt($data) |
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{ |
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return RSA::rsaDecrypt($data, $this->privateKey, $this->modulus, $this->keyLength); |
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} |
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/** |
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* Sign given data |
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* |
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* @param string $data |
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* |
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* @return string |
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*/ |
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public function sign($data) |
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{ |
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return RSA::rsaSign($data, $this->privateKey, $this->modulus, $this->keyLength); |
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} |
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/** |
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* Verify RSA data |
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* |
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* @param string $data |
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* |
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* @return boolean |
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*/ |
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public function verify($data) |
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{ |
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return RSA::rsaVerify($data, $this->publicKey, $this->modulus, $this->keyLength); |
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} |
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} |
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