JASRI/SPring-8, Hyogo-ken
* http://www.renesas.com/
JASRI/SPring-8, Hyogo-ken
* T. Masuda et. al., Proceedings of PCaPAC2005, WEP30 (2005)
| Paper | Title | Page |
|---|---|---|
| WEP010 | Development of a PC/104-Plus Based CPU Module with Power over Ethernet Capability | 186 |
|
||
|
We developed a PC/104-Plus based CPU module with power over ethernet (PoE, IEEE 802.3af) capability. It is based on RENESAS* SH-4 CPU that is used for embedded applications requiring both high performance and low power consumption. We ported Linux 2.6 kernel to the CPU module and set up to run on diskless environment of NFS root. By stacking a dedicated PoE low power module onto the CPU module, it runs without a direct DC power supply. The PoE capability has advantages of power cable saving and power management by remote operation via a power sourcing equipment such as a switching hub. We can choose stackable PC/104 or PC/104-Plus peripheral I/O modules from a variety of commercial products such as analog inputs and outputs or digital inputs/outputs. Therefore, we can assemble a compact, flexible and low-cost embedded-measurement instrument. As a first application, we have a plan to apply the CPU module to a precise analog-signal measurement such as a digital voltmeter. We will report the influence of the PoE power sourcing on the precise measurement.
* http://www.renesas.com/ |
||
|
|
Poster | |
| THX03 | TCP/IP Vulnerabilities of Embedded-System Implementations | 224 |
|
||
|
TCP/IP is established as a de facto standard network-communication protocol. Development of the TCP/IP enables us to build a large-scale distributed control system. Recent accelerator-control system consists of many TCP/IP devices; not only computers, but also embedded devices such as digital multimeters, oscilloscopes, multi-channel analyzers, and so on. Since these embedded devices are designed with limited hardware resources, most devices use subset of the TCP/IP components. The limited resources and components therefore cause many problems such as vulnerabilities of TCP/IP implementations. In SPring–8, by increasing the number of network-connected instruments with latent vulnerabilities, more trouble have arisen such as packet flooding and unexpected response delaying. One of the most serious trouble is hang-up of pulse-motor controllers* based on embedded operating system. To determine cause of the trouble, network-connected instruments were inspected using basic TCP/IP tools and security scanners. As a result, we successfully found vulnerabilities of embedded implementation. In this presentation, the cause of vulnerabilities in embedded systems will be discussed.
* T. Masuda et. al., Proceedings of PCaPAC2005, WEP30 (2005) |
||
|
|
Slides |