diff --git a/code/ryzom/client/src/interface_v3/lua_ihm_ryzom.cpp b/code/ryzom/client/src/interface_v3/lua_ihm_ryzom.cpp
index e011f6e15..d88d08d41 100644
--- a/code/ryzom/client/src/interface_v3/lua_ihm_ryzom.cpp
+++ b/code/ryzom/client/src/interface_v3/lua_ihm_ryzom.cpp
@@ -592,6 +592,8 @@ void CLuaIHMRyzom::RegisterRyzomFunctions(NLGUI::CLuaState &ls)
 		LUABIND_FUNC(isCtrlKeyDown),
 		LUABIND_FUNC(encodeURLUnicodeParam),
 		LUABIND_FUNC(encodeURLParam),
+		LUABIND_FUNC(encodeToHexa),
+		LUABIND_FUNC(decodeFromHexa),
 		LUABIND_FUNC(getPlayerLevel),
 		LUABIND_FUNC(getPlayerVpa),
 		LUABIND_FUNC(getPlayerVpb),
@@ -3780,6 +3782,24 @@ std::string CLuaIHMRyzom::encodeURLParam(const string &text)
 	return convertToHTML(text);
 }
 
+
+// ***************************************************************************
+std::string CLuaIHMRyzom::encodeToHexa(const string &text)
+{
+	return toHexa(text);
+}
+
+
+
+// ***************************************************************************
+std::string CLuaIHMRyzom::decodeFromHexa(const string &text)
+{
+	string hexa;
+	fromHexa(text, hexa);
+	return hexa;
+}
+
+
 // ***************************************************************************
 sint32 CLuaIHMRyzom::getPlayerLevel()
 {
diff --git a/code/ryzom/client/src/interface_v3/lua_ihm_ryzom.h b/code/ryzom/client/src/interface_v3/lua_ihm_ryzom.h
index 3a9eed78a..31cda63b1 100644
--- a/code/ryzom/client/src/interface_v3/lua_ihm_ryzom.h
+++ b/code/ryzom/client/src/interface_v3/lua_ihm_ryzom.h
@@ -261,6 +261,9 @@ private:
 	static std::string encodeURLUnicodeParam(const ucstring &text);
 	static std::string encodeURLParam(const std::string &text);
 
+	static std::string encodeToHexa(const std::string &text);
+	static std::string decodeFromHexa(const std::string &text);
+
 	static sint32 getPlayerLevel();		// get max level among player skills (magi, combat, crafting ,foraging)
 	static std::string getPlayerVpaHex();
 	static std::string getPlayerVpbHex();