Esempio n. 1
0
 /**
  * Unseals the given envelope.
  *
  * @param string $envelope The envelope to unseal.
  * @param string $envelopeKey The envelope hash key.
  * @param string $cipherMethod The cipher method used to seal the message.
  * @param string $iv The optional initialization vector for some cipher methods.
  * @return string The unsealed message.
  * @since 0.3
  */
 public function unseal(string $envelope, string $envelopeKey, string $cipherMethod = null, string $iv = '') : string
 {
     OpenSSL::resetErrors();
     $paddedIV = InitVector::pad($iv);
     if (@openssl_open($envelope, $message, $envelopeKey, $this->resource, $cipherMethod, $paddedIV) === false) {
         // @codeCoverageIgnoreStart
         throw new OpenSSLException(OpenSSL::getErrors(), 'Could not unseal envelope.');
         // @codeCoverageIgnoreEnd
     }
     return $message;
 }
Esempio n. 2
0
 /**
  * Seals the given message in an encrypted envelope that can only be decrypted by the private key matching the public key.
  *
  * @param string $message The message to be sealed.
  * @param string $cipherMethod The cipher method to use from CipherMethod.
  * @param string $iv The optional initialization vector for some cipher methods.
  * @return array Returns an array containing the envelope along other information like the key and method used.
  *                  0 => [string] envelope
  * 1 => [string] envelope key
  * 2 => [string] cipher method used
  * @since 0.3
  */
 public function seal(string $message, string $cipherMethod = CipherMethod::RC4, string $iv = '') : array
 {
     OpenSSL::resetErrors();
     if (!CipherMethod::isAvailable($cipherMethod)) {
         throw new CipherMethodNotAvailableException($cipherMethod, 'The given cipher method is not available in the current platform stack.');
     }
     $paddedIV = InitVector::pad($iv);
     if (@openssl_seal($message, $envelope, $envelopeKeys, [$this->resource], $cipherMethod, $paddedIV) === false) {
         // @codeCoverageIgnoreStart
         throw new OpenSSLException(OpenSSL::getErrors(), 'Could not seal message.');
         // @codeCoverageIgnoreEnd
     }
     return [$envelope, $envelopeKeys[0], $cipherMethod];
 }