topic Re: SE050 middleware serial communication in Secure Authentication

SE050 middleware serial communication

michaelok — Thu, 29 Jul 2021 22:11:40 GMT

I downloaded SE-PLUG-TRUST-MW.zip and compiled it.

Host: Linux

I've mounted a OM-SE050ARD developer kit on a Arduino Uno. My Linux host is connected to the Arduino using a USB CDC (ACM) connection, and my device tree has:

/dev/ttyACM0

THOUGHTS

The Arduino is kind of a middle man, and I'm not sure this configuration works.

Maybe I can set SMCOM to VCOM or JRCP, in order to allow the Arduino middle man arrangement.

QUESTIONS

Is my configuration impossible?

What firmware should I load onto the Arduino, to allow communication from my Linux host to access the SE050.

Does the SE050 need to be directly connected (over the I2C bus) to the host running the middleware?

Re: SE050 middleware serial communication

Kan_Li — Fri, 30 Jul 2021 08:38:02 GMT

Hi @michaelok ,

Yes, this configuration is possible, but better using FRDM-K64F instead of a Arduino Uno, because there is a ready bin file to act as a bridge between the Host and SE050 based on FRDM-K64F, and you may find it in the folder of "SE-PLUG-TRUST-MW\simw-top\binaries\MCU", such as shown below:

The MCU firmware binaries "vcom*" provide a VCOM port for communication to the secure element to let the Windows examples connect over VCOM to the secure element.
The MCU firmware binaries "ccid*" provide a CCID reader emulation to the secure element for software which is using e.g. PC/SC smartcard interface

MCU binaries for SE050/51 using UM11225 T=1oI2C protocol:
./MCU/se05x/se05x_ccid-T1oI2C-frdmk64f.bin (CCID interface for K64F)
./MCU/se05x/se05x_vcom-T1oI2C-evkmimxrt1060.bin (VCOM interface for i.MX RT1060)
./MCU/se05x/se05x_vcom-T1oI2C-frdmk64f.bin (VCOM interface for K64F)
./MCU/se05x/se05x_vcom-T1oI2C-lpcxpresso55s69.bin (VCOM interface for LPC55S69 EVK)

It is also possible to connect SE050 with Linux host via I2C interface directly, but so far we just provide Linux support on i.MX platforms such as the MCIMX8M-EVK or MCIMX6UL-EVK development board, and Raspberry Pi as well, please kindly refer to https://www.nxp.com/docs/en/application-note/AN12570.pdf for more details.

To add support for SE050 on other Linux platforms, we also provide the following app note: https://www.nxp.com.cn/docs/en/application-note/AN12448.pdf .

Hope that helps,

Have a great day,
Kan

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Re: SE050 middleware serial communication

michaelok — Fri, 30 Jul 2021 22:52:39 GMT

Thanks @Kan_Li , this is very helpful information. It seems you have the wrong impression that I'm using a Windows OS, which I don't have.

My new plan is to flash the MCU of my FRDM-K64F and test the method you describe, with:

se050_GetInfo-T1oI2C-frdmk64f.bin
se05x_vcom-T1oI2C-frdmk64f.bin

I see some binaries with the text GP1 in their names, do you know what GP1 means?

I like the porting guide you mention as well, I found that on my own and plan to use it in the long term. My goal is to put a SE050 in every STM32 based device I produce.

Re: SE050 middleware serial communication

keerthi1 — Thu, 14 Dec 2023 09:57:44 GMT

Hi sir,

Can you provide a source code for those binaries.

Re: SE050 middleware serial communication

Kan_Li — Fri, 15 Dec 2023 02:06:12 GMT

Hi @keerthi1 ,

You may have the source code in the sdk based projects, please kindly refer to the following for details.

Have a great day,
Kan