How to use

AesZipFileEncrypter

in

de.idyl.winzipaes

/**
 * Zip + encrypt one "inFile" to one "outZipFile" using "password".
 */
public static void zipAndEncrypt(File inFile, File outFile, String password, AESEncrypter encrypter) throws IOException {
  AesZipFileEncrypter enc = new AesZipFileEncrypter(outFile,encrypter);
  try {
    enc.add(inFile, password);
  } finally {
    enc.close();
  }
}

/**
 * Encrypt all files from an existing zip to one new "zipOutFile" using "password".
 */
public static void zipAndEncryptAll(File inZipFile, File outFile, String password, AESEncrypter encrypter) throws IOException {
  AesZipFileEncrypter enc = new AesZipFileEncrypter(outFile,encrypter);
  try {
    enc.addAll(inZipFile, password);
  } finally {
    enc.close();
  }
}

/**
 * Add un-encrypted + un-zipped file to encrypted zip file.<br>
 *
 * @param file to add
 * @param pathForEntry to be used for addition of the file (path within zip file)
 * @param password to be used for encryption
 */
public void add(File file, String pathForEntry, String password) throws IOException, UnsupportedEncodingException {
  FileInputStream fis = new FileInputStream(file);
  try {
    add(pathForEntry, fis, password);
  } finally {
    fis.close();
  }
}

public EncryptedZIPExportWriter(String zipFileName, String password) {
  try {
    this.zipFile = new File(zipFileName);
    if (zipFile.exists()) {
      throw new IllegalStateException("File " + zipFileName + " already exists");
    }
    this.objectMapper = JsonSerialization.mapper;
    AESEncrypter encrypter = new AESEncrypterBC();
    this.encrypter = new AesZipFileEncrypter(this.zipFile, encrypter);
    this.password = password;
  } catch (IOException ioe) {
    throw new RuntimeException(ioe);
  }
}

  @Override
  public void closeExportWriter() {
    try {
      this.encrypter.close();
    } catch (IOException ioe) {
      throw new RuntimeException(ioe);
    }
  }
}

/**
 * Add un-encrypted + un-zipped file to encrypted zip file.<br>
 *
 * @param file to add
 * @param pathForEntry to be used for addition of the file (path within zip file)
 * @param password to be used for encryption
 */
public void add(File file, String pathForEntry, String password) throws IOException, UnsupportedEncodingException {
  FileInputStream fis = new FileInputStream(file);
  try {
    add(pathForEntry, fis, password);
  } finally {
    fis.close();
  }
}

  zfe = new AesZipFileEncrypter(filePath, new AESEncrypterBC());
} catch (IOException e) {
  failedException = e;

/**
 * Zip + encrypt one "inFile" to one "outZipFile" using "password".
 */
public static void zipAndEncrypt(File inFile, File outFile, String password, AESEncrypter encrypter) throws IOException {
  AesZipFileEncrypter enc = new AesZipFileEncrypter(outFile,encrypter);
  try {
    enc.add(inFile, password);
  } finally {
    enc.close();
  }
}

/**
 * Encrypt all files from an existing zip to one new "zipOutFile" using "password".
 */
public static void zipAndEncryptAll(File inZipFile, File outFile, String password, AESEncrypter encrypter) throws IOException {
  AesZipFileEncrypter enc = new AesZipFileEncrypter(outFile,encrypter);
  try {
    enc.addAll(inZipFile, password);
  } finally {
    enc.close();
  }
}

@Override
public <T> void writeEntities(String fileName, List<T> entities) {
  try {
    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    this.objectMapper.writeValue(stream, entities);
    byte[] byteArray = stream.toByteArray();
    this.encrypter.add(fileName, new ByteArrayInputStream(byteArray), this.password);
  } catch (IOException ioe) {
    throw new RuntimeException(ioe);
  }
}

/**
 * Add un-encrypted + un-zipped file to encrypted zip file.
 * 
 * @param file to add, provides the path of the file within the zip file via its getPath()
 * @param password to be used for encryption
 */
public void add(File file, String password) throws IOException, UnsupportedEncodingException {
  FileInputStream fis = new FileInputStream(file);
  try {
    add(file.getPath(), fis, password);
  } finally {
    fis.close();
  }
}

/**
 * Add un-encrypted + un-zipped file to encrypted zip file.
 * 
 * @param file to add, provides the path of the file within the zip file via its getPath()
 * @param password to be used for encryption
 */
public void add(File file, String password) throws IOException, UnsupportedEncodingException {
  FileInputStream fis = new FileInputStream(file);
  try {
    add(file.getPath(), fis, password);
  } finally {
    fis.close();
  }
}

/**
 * Take all elements (files) from zip file and add them ENCRYPTED with password to the new zip
 * file created with this instance. <br>
 * Encrypted data of each file has the same size as the compressed data, though the file size is
 * increased by 26 bytes for salt and pw-verification bytes.<br>
 * While the {@link #add(File, String)} method does not need an additional zip file, this method
 * comes in handy, when your input data is larger than your available memory. 
 * 
 * @param pathToZipFile
 *          provides zipFileEntries for encryption
 * @param password
 *          used to perform the encryption
 * @throws IOException
 */
public void addAll(File pathToZipFile, String password) throws IOException {
  ZipFile zipFile = new ZipFile(pathToZipFile);
  try {
    add(zipFile, password);
  } finally {
    zipFile.close();
  }
}

/**
 * Take all elements (files) from zip file and add them ENCRYPTED with password to the new zip
 * file created with this instance. <br>
 * Encrypted data of each file has the same size as the compressed data, though the file size is
 * increased by 26 bytes for salt and pw-verification bytes.<br>
 * While the {@link #add(File, String)} method does not need an additional zip file, this method
 * comes in handy, when your input data is larger than your available memory. 
 * 
 * @param pathToZipFile
 *          provides zipFileEntries for encryption
 * @param password
 *          used to perform the encryption
 * @throws IOException
 */
public void addAll(File pathToZipFile, String password) throws IOException {
  ZipFile zipFile = new ZipFile(pathToZipFile);
  try {
    add(zipFile, password);
  } finally {
    zipFile.close();
  }
}

protected void add(ZipFile inFile, String password) throws IOException,
    UnsupportedEncodingException {
  ZipFileEntryInputStream zfe = new ZipFileEntryInputStream(inFile.getName());			
  try {
    Enumeration<? extends ZipEntry> en = inFile.entries();
    while (en.hasMoreElements()) {
      ZipEntry ze = en.nextElement();
      zfe.nextEntry(ze);
      add(ze, zfe, password);
    }
  } finally {
    zfe.close();
  }
}

protected void add(ZipFile inFile, String password) throws IOException,
    UnsupportedEncodingException {
  ZipFileEntryInputStream zfe = new ZipFileEntryInputStream(inFile.getName());			
  try {
    Enumeration<? extends ZipEntry> en = inFile.entries();
    while (en.hasMoreElements()) {
      ZipEntry ze = en.nextElement();
      zfe.nextEntry(ze);
      add(ze, zfe, password);
    }
  } finally {
    zfe.close();
  }
}