Create a WinZip compatible AES Encrypted Zip

Creates a WinZip compatible 128-bit AES-encrypted .zip archive

Download Chilkat Java Library

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    CkZip zip = new CkZip();

    boolean success;

    //  Any string unlocks the component for the 1st 30-days.
    success = zip.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        System.out.println(zip.lastErrorText());
        return;
    }

    success = zip.NewZip("aes.zip");
    if (success != true) {
        System.out.println(zip.lastErrorText());
        return;
    }

    //  Set properties to indicate that the Zip should be
    //  AES encrypted.

    //  A value of 4 indicates WinZip compatible AES encryption.
    zip.put_Encryption(4);

    //  Key length can be 128, 192, or 256 bits.
    zip.put_EncryptKeyLength(128);

    //  Set the password needed to unzip.
    zip.SetPassword("myPassword");

    //  Append a directory tree.  The AppendFiles does
    //  not read the file contents or append them to the zip
    //  object in memory.  It simply appends references
    //  to the files so that when WriteZip (or WriteZipAndClose,
    //  or WriteExe, etc.) is called, the files are compressed
    //  and encrypted.
    boolean recurse;
    recurse = true;
    zip.AppendFiles("c:/temp/a/*",recurse);

    //  Write "AesEncrypted.zip"

    success = zip.WriteZipAndClose();
    if (success != true) {
        System.out.println(zip.lastErrorText());
        return;
    }

    System.out.println("Zip Created!");
  }
}