Package de.hsh.graja.offline.encryption

Class OgreConnector

java.lang.Object
de.hsh.graja.offline.encryption.OgreConnector
public class OgreConnector extends Object
This class serves as a connection between the Offline-Graja-Encryption and other projects in need of using it.

  • Constructor Details

    • OgreConnector

      public OgreConnector()

  • Method Details

    • encryptFile

      public static File encryptFile(File fileToEncrypt, Map<String,? extends Object> metaData) throws IOException
      Encrypts the given file using the Offline-Graja-Encryption
      Parameters:
      fileToEncrypt - The file which should be encrypted. The file is converted to a *.dat file with the same file name as the given file. For example a file called task.zip will be encrypted to task.dat. If there already is a file with that name (e. g. when encrypting a *.dat file), the encrypted file is named task_encrypted.dat (in that example - similar for other files). If the file task_encrypted.dat exists already as well, it will be overwritten!
      metaData - A map containing all the meta data which should be stored in the encrypted file. After decryption this meta data will be stored in a JSON file called ogre.inf
      Returns:
      The encrypted *.dat file
      Throws:
      IOException

    • decryptFile

      public static File decryptFile(File fileToDecrypt) throws IOException
      Encrypts the given file using the Offline-Graja-Encryption
      Parameters:
      fileToDecrypt - The file which should be decrypted. The file is converted to a *.zip file with the same file name as the given file. For example a file called task.dat will be decrypted to task.zip. If there already is a file with that name, the decrypted file is named task_decrypted.zip (in that example - similar for other files). If the file task_decrypted.zip exists already, it will be overwritten! This method will obviously fail and create data garbage if the given file was never encrypted with the ogre.inf
      Returns:
      The created *.zip file containing the original of the encrypted file and a JSON file called ogre.inf, containing all the meta data which was stored in the encrypted file.
      Throws:
      IOException