In this paper, we present the design, implementation, and software testing of USBSec, a secure extension of the vanilla USB protocol that incorporates host authentication to defend against software threats. Specifically, we force the USB host to supply authentication information to the peripheral device before enumerating the device. The peripheral validates the authentication information again...

Universal serial bus (USB) is a popular method for personal computers (PC) to communicate with peripherals via cables. In some applications, it’s desirable to isolate the USB communication to achieve safety requirements, or break ground loops. Unfortunately the isolation task is not trivial because of the bi-directional data flow on the USB cable. This article discusses this and other challenge...

The security of sensitive data and the safety of control signal are two core issues in industrial control system (ICS). However, the prevalence of USB storage devices brings a great challenge on protecting ICS in those respects. Unfortunately, there is currently no solution especially for ICS to provide a complete defense against data transmission between untrusted USB storage devices and criti...

This bachelor thesis describes the implementation of an Android framework to access mass storage devices over the USB interface of a smartphone. First the basics of USB (i.e. interfaces, endpoints and USB On the go) and accessing USB devices via the official Android API are discussed. Next the USB mass storage class is explained, which was designed by the USB-IF to access mobile mass storage li...

Universal Serial Bus (USB) is a popular choice of interfacing computer systems with peripherals. With the increasing support of modern operating systems, it is now truly plug-and-play for most USB devices. However, this great convenience comes with a risk that can allow a device to perform arbitrary actions at any time while it is connected. Researchers have confirmed that a simple USB device s...

In this study, we prepared essential oil (EO) from waste wood chips made from used sake barrels (USBs) of Japanese cedar (i.e., EO-USB) by steam distillation. We found that EO-USB and three commercially purchased EOs derived from xylem tissue of Japanese woods, such as Japanese cedar (Cryptomeria japonica), Japanese cypress (Chamaecyparis obtusa) and false arborvitae (Thujopsis dolabrata), supp...