Yutaka Niibe gniibe@identi.ca

Maebashi, Japan

GNU wannabee ['gnu:be], FSIJ chairman, Debian Developer

GD32VF103 and its possible use for Gnuk
2020-09-30T23:59:47Z via Pumpa To: Public CC: Followers
GD32VF103, which comes with RISC-V core, is cheap and fast.

I ported Chopstx to GD32VF103, and am considering if it's good to port Gnuk.

Last month, when I found riscv-openocd merged the support of GD32VF103, I tried to use the debugger interface.

And... for my version (which I bought from Seeed), the Longan Nano, I can access its flash ROM content.
If my analysys is correct, it's a kind of matter for CVE, I suppose.

With help of my Chinese friends, I try to contact the vendor.

Happy Chinese Holiday Season!
Alexandre Oliva likes this.
And then, I was informed for this having many CVEs:
https://github.com/JohannesObermaier/f103-analysis/

Well, mine is independent, and more easier to be attacked.

Yutaka Niibe at 2020-10-02T01:46:05Z
geekable likes this.
Supporting Ed448 (GnuPG)
2020-06-24T01:21:24Z via Pumpa To: Public CC: Followers
I pushed the change to support Ed448 to GnuPG master:
https://dev.gnupg.org/rGa763bb2580b0d586a80b8ccd3654f41e49604f4f
Ed448 in libgcrypt
2020-06-10T23:59:57Z via Pumpa To: Public CC: Followers
X448 feature has been pushed to GnuPG master.

Now, I'm adding the support of Ed448 to libgcrypt so that it will be also supported by GnuPG.
Supporting X448 (GnuPG)
2020-06-10T23:58:44Z via Pumpa To: Public CC: Followers
I pushed the change to support X448 to GnuPG master.
UI (displaying the name of algo, selecting it from tty or command line) needs some more changes, though.
Bouncing GnuPG Logo
2019-12-26T23:33:30Z via Identi.ca Web To: Public CC: Followers
It's running on the Longan-Nano board with RISC-V MCU named GD32VF103 (Bumblebee core).

I took a video, but I don't know how we can share a video with free software friendly way.
So, it's an image only for now.

salyavin likes this.
Just for the record, you can upload videos here, to Pump.io, with a client capable of it, like Dianara.

And there's always a Mediagoblin or Nextcloud instance 😃
JanKusanagi at 2019-12-27T13:01:08Z
salyavin likes this.
"FSIJ" logo on 160x80 screen by RISC-V MCU
2019-12-01T23:49:16Z via Identi.ca Web To: Public CC: Followers
Longan Nano comes with LCD display, which is connected through SPI.
I wrote a SPI driver for Chopstx.
This is an example.

salyavin likes this.
2019-11-26T00:23:14Z via Identi.ca Web To: Public CC: Followers
Last week, I renewed IEEE membership, and got a sticker saying "KEEP CALM I'M IEEE MEMBER".

Then, yesterday, I received FSF Bulletin. #fsfbulletin
It was sent on November 11th, the one of binary days. :-)

McClane likes this.
2019-11-12T06:11:30Z via Identi.ca Web To: Public CC: Followers
Chopstx is running on RISC-V MCU now.
I got the board named "Longan-nano", which uses GD32VF103.

Alexandre Oliva likes this.
Experiment with ICE40 for SHA256
2019-09-04T23:41:02Z via Identi.ca Web To: Public CC: Followers
With Migen, I wrote a SHA256 module.
2019-07-09T23:31:16Z via Identi.ca Web To: Public CC: Followers
GnuPG 2.2.17 is out.

This includes a important change to access key retrieval from WKD (Web Key Discovery).
https://tools.ietf.org/html/draft-koch-openpgp-webkey-service-08

For example, you can fetch my by:
$ gpg --locate-key gniibe@fsij.org
2019-07-09T03:43:34Z via Identi.ca Web To: Public CC: Followers
WKD for debian.org is available now:
https://dkg.fifthhorseman.net/blog/wkd-for-debian.org.html

So, I'm going to setup WKD on fsij.org.
2019-07-04T04:41:17Z via Identi.ca Web To: Public CC: Followers
I'm back to Savannah, to update Japanese translation of www.gnu.org.

I found that it now supports Ed25519 SSH key, that's good for me (using Gnuk Token).
I need a hole for the metal case
2019-05-31T04:38:33Z via Identi.ca Web To: Public CC: Followers
McClane likes this.
Drill it, drill it with fire!!! 😎
JanKusanagi at 2019-05-31T19:15:16Z
Yutaka Niibe likes this.
A user with lighter color eyes once requested no-use of LED.
For those, no hole makes sense.

Yutaka Niibe at 2019-06-03T06:40:16Z
The metal case from China
2019-05-18T01:06:18Z via Identi.ca Web To: Public CC: Followers
This is a good part I found.

McClane likes this.
New Project of 2019: I'm under GPL\r\n
2019-03-29T01:32:28Z via Identi.ca Web To: Public CC: Followers
It's Verilog module (written in Python with migen) for fun.

https://gitlab.com/unixjazz/im_gpl

McClane likes this.
Smartcard ATR (2)
2019-03-01T23:15:25Z via Identi.ca Web To: Public CC: Followers
This is entire session of ATR.
Smartcard ATR by Sigrok with Saleae Logic 16
2019-03-01T23:14:16Z via Identi.ca Web To: Public CC: Followers
This is a pulseview window of sigrok.
I needed to have a "look" at these signals to debug my smartcard reader.
- D0 line is power supply of +3V3.
- D1 line is I/O.
- D2 line is RST.
- D3 line is CLK.
We can see that after RST asserted, smartcard emits ATR string to I/O.
My smartcard reader
2019-03-01T13:45:06Z via Identi.ca Web To: Public CC: Followers
I gave up using smartcard reader (of proprietary firmware).
I start my own firmware implementation.
Today, I successfully got ATR of OpenPGP card V3.3.

Alexandre Oliva, Ben Sturmfels, McClane likes this.
This is the ATR string of OpenPGP card V3.3.

$ jpnevulator --tty /dev/ttyACM1 --read
3B DA 18 FF 81 B1 FE 75 1F 03 00 31 F5 73 C0 01
60 00 90 00 1C 48 65 6C 6C 6F 21

Yutaka Niibe at 2019-03-01T13:46:26Z
Gnubot approves! 🤖 👍
JanKusanagi at 2019-03-01T14:41:36Z
Yutaka Niibe likes this.
2019-02-19T05:58:07Z via Identi.ca Web To: Public CC: Followers
Long standing bug has been fixed.
https://dev.gnupg.org/T2011

zykotick9 likes this.
\o/
JanKusanagi at 2019-02-19T13:34:24Z