diff --git a/src/dorkbox/util/HashUtil.java b/src/dorkbox/util/HashUtil.java
new file mode 100644
index 0000000..d80e740
--- /dev/null
+++ b/src/dorkbox/util/HashUtil.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2010 dorkbox, llc
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package dorkbox.util;
+
+import org.bouncycastle.crypto.digests.SHA256Digest;
+
+/**
+ * Bouncycastle hashes!
+ */
+public
+class HashUtil {
+    /**
+     * gets the SHA256 hash + SALT of the specified username, as UTF-16
+     */
+    public static
+    byte[] getSha256WithSalt(String username, byte[] saltBytes) {
+        if (username == null) {
+            return null;
+        }
+
+        byte[] charToBytes = Sys.charToBytes(username.toCharArray());
+        byte[] userNameWithSalt = Sys.concatBytes(charToBytes, saltBytes);
+
+
+        SHA256Digest sha256 = new SHA256Digest();
+        byte[] usernameHashBytes = new byte[sha256.getDigestSize()];
+        sha256.update(userNameWithSalt, 0, userNameWithSalt.length);
+        sha256.doFinal(usernameHashBytes, 0);
+
+        return usernameHashBytes;
+    }
+
+    /**
+     * gets the SHA256 hash of the specified string, as UTF-16
+     */
+    public static
+    byte[] getSha256(String string) {
+        byte[] charToBytes = Sys.charToBytes(string.toCharArray());
+
+        SHA256Digest sha256 = new SHA256Digest();
+        byte[] usernameHashBytes = new byte[sha256.getDigestSize()];
+        sha256.update(charToBytes, 0, charToBytes.length);
+        sha256.doFinal(usernameHashBytes, 0);
+
+        return usernameHashBytes;
+    }
+
+    /**
+     * gets the SHA256 hash of the specified byte array
+     */
+    public static
+    byte[] getSha256(byte[] bytes) {
+
+        SHA256Digest sha256 = new SHA256Digest();
+        byte[] hashBytes = new byte[sha256.getDigestSize()];
+        sha256.update(bytes, 0, bytes.length);
+        sha256.doFinal(hashBytes, 0);
+
+        return hashBytes;
+    }
+}
diff --git a/src/dorkbox/util/Sys.java b/src/dorkbox/util/Sys.java
index df18f31..4065ee7 100644
--- a/src/dorkbox/util/Sys.java
+++ b/src/dorkbox/util/Sys.java
@@ -27,8 +27,6 @@ import java.util.Map;
 import java.util.Map.Entry;
 import java.util.concurrent.TimeUnit;
 
-import org.bouncycastle.crypto.digests.SHA256Digest;
-
 @SuppressWarnings({"unused", "WeakerAccess"})
 public final
 class Sys {
@@ -294,56 +292,6 @@ class Sys {
         return concatBytes;
     }
 
-    /**
-     * gets the SHA256 hash + SALT of the specified username, as UTF-16
-     */
-    public static
-    byte[] getSha256WithSalt(String username, byte[] saltBytes) {
-        if (username == null) {
-            return null;
-        }
-
-        byte[] charToBytes = Sys.charToBytes(username.toCharArray());
-        byte[] userNameWithSalt = Sys.concatBytes(charToBytes, saltBytes);
-
-
-        SHA256Digest sha256 = new SHA256Digest();
-        byte[] usernameHashBytes = new byte[sha256.getDigestSize()];
-        sha256.update(userNameWithSalt, 0, userNameWithSalt.length);
-        sha256.doFinal(usernameHashBytes, 0);
-
-        return usernameHashBytes;
-    }
-
-    /**
-     * gets the SHA256 hash of the specified string, as UTF-16
-     */
-    public static
-    byte[] getSha256(String string) {
-        byte[] charToBytes = Sys.charToBytes(string.toCharArray());
-
-        SHA256Digest sha256 = new SHA256Digest();
-        byte[] usernameHashBytes = new byte[sha256.getDigestSize()];
-        sha256.update(charToBytes, 0, charToBytes.length);
-        sha256.doFinal(usernameHashBytes, 0);
-
-        return usernameHashBytes;
-    }
-
-    /**
-     * gets the SHA256 hash of the specified byte array
-     */
-    public static
-    byte[] getSha256(byte[] bytes) {
-
-        SHA256Digest sha256 = new SHA256Digest();
-        byte[] hashBytes = new byte[sha256.getDigestSize()];
-        sha256.update(bytes, 0, bytes.length);
-        sha256.doFinal(hashBytes, 0);
-
-        return hashBytes;
-    }
-
     /**
      * this saves the char array in UTF-16 format of bytes
      */