Added AES class

src/main/java/Main/AES.java

@@ -0,0 +1,40 @@
+package Main;
+
+import javax.crypto.Cipher;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.IvParameterSpec;
+
+public class AES {
+
+    public static byte[] encrypt(byte[] data, SecretKey secretKey, byte[] iv)
+    {
+        try
+        {
+            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
+            IvParameterSpec ivParameterSpec = new IvParameterSpec(iv);
+            cipher.init(Cipher.ENCRYPT_MODE, secretKey, ivParameterSpec);
+            return cipher.doFinal(data);
+        }
+        catch (Exception e)
+        {
+            System.out.println("Error while encrypting: " + e.toString());
+        }
+        return null;
+    }
+
+    public static byte[] decrypt(byte[] data, SecretKey secretKey, byte[] iv)
+    {
+        try
+        {
+            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
+            IvParameterSpec ivParameterSpec = new IvParameterSpec(iv);
+            cipher.init(Cipher.DECRYPT_MODE, secretKey, ivParameterSpec);
+            return cipher.doFinal(data);
+        }
+        catch (Exception e)
+        {
+            System.out.println("Error while decrypting: " + e.toString());
+        }
+        return null;
+    }
+}