diff --git a/source/net/filebot/mac/sandbox/SandBoxUtil.java b/source/net/filebot/mac/sandbox/SandBoxUtil.java
new file mode 100644
index 00000000..322a853d
--- /dev/null
+++ b/source/net/filebot/mac/sandbox/SandBoxUtil.java
@@ -0,0 +1,21 @@
+package net.filebot.mac.sandbox;
+
+import ca.weblite.objc.Client;
+
+public class SandBoxUtil {
+
+	private static final Client objc = new Client();
+
+	public static Object NSData_initWithBase64Encoding(String text) {
+		return objc.sendProxy("NSData", "data").send("initWithBase64Encoding:", text);
+	}
+
+	public static Object NSURL_bookmarkDataWithOptions(String path) {
+		return objc.sendProxy("NSURL", "fileURLWithPath:", path).sendProxy("bookmarkDataWithOptions:includingResourceValuesForKeys:relativeToURL:error:", 2048, null, null, null).sendString("base64Encoding");
+	}
+
+	public static Object NSURL_URLByResolvingBookmarkData_startAccessingSecurityScopedResource(String text) {
+		return objc.sendProxy("NSURL", "URLByResolvingBookmarkData:options:relativeToURL:bookmarkDataIsStale:error:", NSData_initWithBase64Encoding(text), 1024, null, false, null).send("startAccessingSecurityScopedResource");
+	}
+
+}