Java

Create a WinZip/7-Zip compatible AES Encrypted Zip

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Creates a WinZip compatible AES-encrypted .zip archive Java

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[])
  {
    boolean success = false;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkZip zip = new CkZip();

    success = zip.NewZip("/myZipDir/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 for AES encryption:
    zip.put_EncryptPassword("myPassword");

    // Add a directory tree to be zipped.  (The files
    // are not compressed at this point -- only references
    // to the files and directories are added to the zip object.)
    boolean recurse = true;
    success = zip.AppendFiles("c:/temp/a/*",recurse);
    if (success != true) {
        System.out.println(zip.lastErrorText());
        return;
        }

    // Create the encrypted zip ("/myZipDir/aes.zip")
    // The path of the zip is what was originally passed
    // to the NewZip method (above).  
    success = zip.WriteZipAndClose();
    if (success != true) {
        System.out.println(zip.lastErrorText());
        return;
        }

    System.out.println("Created AES Encrypted Zip.");
  }
}