Java by API/javax.crypto.spec/PBEKeySpec

javax.crypto.spec.PBEKeySpec

   <source lang="java">
 

import java.security.Key; import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.SecretKey; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.PBEKeySpec; import javax.crypto.spec.PBEParameterSpec; public class MainClass {

 public static void main(String[] args) throws Exception {
   KeyGenerator kg = KeyGenerator.getInstance("DESede");
   Key sharedKey = kg.generateKey();
   String password = "password";
   byte[] salt = "salt1234".getBytes();
   PBEParameterSpec paramSpec = new PBEParameterSpec(salt, 20);
   PBEKeySpec keySpec = new PBEKeySpec(password.toCharArray());
   SecretKeyFactory kf = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
   SecretKey passwordKey = kf.generateSecret(keySpec);
   Cipher c = Cipher.getInstance("PBEWithMD5AndDES");
   c.init(Cipher.WRAP_MODE, passwordKey, paramSpec);
   byte[] wrappedKey = c.wrap(sharedKey);
   c = Cipher.getInstance("DESede");
   c.init(Cipher.ENCRYPT_MODE, sharedKey);
   byte[] input = "input".getBytes();
   byte[] encrypted = c.doFinal(input);
   c = Cipher.getInstance("PBEWithMD5AndDES");
   c.init(Cipher.UNWRAP_MODE, passwordKey, paramSpec);
   Key unwrappedKey = c.unwrap(wrappedKey, "DESede", Cipher.SECRET_KEY);
   c = Cipher.getInstance("DESede");
   c.init(Cipher.DECRYPT_MODE, unwrappedKey);
   System.out.println(new String(c.doFinal(encrypted)));
 }

}

 </source>