diff --git a/src/main/java/net/locusworks/crypto/AES.java b/src/main/java/net/locusworks/crypto/AES.java
index f054c1e..ecf0405 100644
--- a/src/main/java/net/locusworks/crypto/AES.java
+++ b/src/main/java/net/locusworks/crypto/AES.java
@@ -7,11 +7,16 @@ import javax.crypto.KeyGenerator;
 import javax.crypto.spec.IvParameterSpec;
 import javax.crypto.spec.SecretKeySpec;
 
+import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
 
 import net.locusworks.crypto.utils.RandomString;
 
+import java.io.IOException;
 import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
 import java.security.InvalidAlgorithmParameterException;
 import java.security.InvalidKeyException;
 import java.security.NoSuchAlgorithmException;
@@ -43,9 +48,11 @@ public class AES {
 
   private IvParameterSpec ivParamSpec;
 
-  private String seed;
+  private AES(byte[] seed) {
+    initSecureKey(seed);
+  }
 
-  private void initSecureKey(String seed) {
+  private void initSecureKey(byte[] seed) {
     try {
       SecureRandom sr = getSecureRandom(seed);
       KeyGenerator generator = KeyGenerator.getInstance(ENCRYPTION_TYPE);
@@ -65,9 +72,9 @@ public class AES {
    * @throws NoSuchAlgorithmException thrown when algorithm can't be used
    * @throws NoSuchProviderException thrown when the provider cant be found
    */
-  private static SecureRandom getSecureRandom(String seed) throws NoSuchAlgorithmException {
+  private static SecureRandom getSecureRandom(byte[] seed) throws NoSuchAlgorithmException {
     SecureRandom sr = SecureRandom.getInstance(ALGORITHM);
-    sr.setSeed(seed.getBytes(StandardCharsets.UTF_8));
+    sr.setSeed(seed);
     return sr;
   }
 
@@ -123,42 +130,30 @@ public class AES {
     }
   }
   
-  public AES setSeed(String seed) {
-    if (this.seed == null || !this.seed.equals(seed)) {
-      initSecureKey(seed);
-    }
-    this.seed = seed;
-    return this;
-  }
-  
-  public final String getSeed() {
-    return this.seed;
-  }
-
   public static AES createInstance() {
     return createInstance(RandomString.getString(16));
   }
   
-  public static AES createInstance(byte[] byteSeed) {
-    String seed = new String(byteSeed, StandardCharsets.UTF_8);
-    return createInstance(seed);
+  public static AES createInstance(byte[] seed) {
+    return new AES(seed);
   }
 
   public static AES createInstance(String seed) {
-    AES aes = new AES();
-    aes.setSeed(seed);
-    return aes;
+    return createInstance(seed.getBytes(StandardCharsets.UTF_8));
   }
   
-  public static void main(String[] args) throws NoSuchAlgorithmException {
-    if (args == null || !(args.length > 0)) {
-      throw new IllegalArgumentException("No args provided. Need password as argument");
-    }
-    if (args.length % 2 == 0) {
-      System.out.println(AES.createInstance(String.valueOf(args[1])).decrypt(String.valueOf(args[0])));
-    } else {
-      System.out.println(AES.createInstance().encrypt(String.valueOf(args[0])));
+  public static void main(String[] args) throws NoSuchAlgorithmException, IOException {
+    Path keyFile = Paths.get("../pseudo-bot/key.bin");
+    if (!Files.exists(keyFile)) {
+      throw new IOException("Unable to find key.bin in local directory");
     }
+    
+    byte[] key = IOUtils.toByteArray(Files.newInputStream(keyFile));
+    
+    AES aes = AES.createInstance(key);
+    
+    String encrypted = aes.encrypt("pseudobotAdmin2017!");
+    System.out.println(encrypted);
   }
   
 }