Hi,

I am not seeing any blue light when try to use it to active my google account 2 step authentication. I've done compiling the firmware and is loaded in to the device successfully. But it doesn't seems to work.
I saw there is a step to build the open bootloader. Is this step necessary to get this working?

THanks

I installed the openssl by ubuntu apt command.The OpenSSL version in my Ubuntu 18.04 is 1.1.0g.
There is no such command that named "list-standard-command" in the current version.So the shell script need to be modified.I would be glad to launch a pull request or you could do it by yourself.

Flashed with the open_bootloader and app from 0b7d8ad

The device is correctly identified:

nRF52 U2F Security Key:

  Product ID:	0x520f
  Vendor ID:	0x1915  (Nordic Semiconductor ASA)
  Version:	1.00
  Serial Number:	000000000000
  Speed:	Up to 12 Mb/sec
  Manufacturer:	Nordic Semiconductor
  Location ID:	0x14200000 / 21
  Current Available (mA):	500
  Current Required (mA):	500
  Extra Operating Current (mA):	0

But when I press the button, the red LED starts to pulse and it boots into Open DFU:

Open DFU Bootloader:

  Product ID:	0x521f
  Vendor ID:	0x1915  (Nordic Semiconductor ASA)
  Version:	1.00
  Serial Number:	E913D22507A8
  Speed:	Up to 12 Mb/sec
  Manufacturer:	Nordic Semiconductor
  Location ID:	0x14200000 / 22
  Current Available (mA):	500
  Current Required (mA):	500
  Extra Operating Current (mA):	0

Please advise.

Hi, have you considered or do you have any plans to extend to FIDO2?

We make Solo: http://github.com/solokeys/solo

Our firmware is based on STM32, but designed to be ported on multiple platforms. We used to have a NRF port but we no longer maintain it, mostly for the effort it requires. You can still see our old code here: https://github.com/solokeys/solo/tree/ed676151f13b2b9ae8176b3318c9f49c4897d783/targets

If you're interested, we'd be really happy to merge our works together and have you maintain the port to NRF -- you'll get FIDO2 for free and soon other features such as openpgp/ssh. Please feel free to reply here or write us directly at [email protected]. Cheers!

but it do not work, is it not compatible with it? I could register the usb dongle in the admin page. But if i would login to the page again i get the message that i should do some thing with the key. Then i press the button but nothin happens. During the registration of the dongle pressing the button has worked. In the debuggin console of firefox also nothing happens.
So the question is it is a FW problem of the dongle or of the nextcloud u2f application plugin?

I am trying to configure the nrf52840 USB dongle. it succeeds. but on the board side, a blue LED is blinking. when I pressed the button, it did not give any response. it looks like trouble in mapping of button. Can anyone help me to solve this issue?

Can i use your FW to use it to store a HMAC-SHA1 file on it to use it with a keepassXC for example?
https://keepassxc.org/docs/#faq-yubikey-why-hmac-sha1

I think Challenge-Reponse is the keyword for it.

Is this planed to implement?

i run in this error during creating the firmware:

Compiling file: oberon_backend_hmac.c
Linking target: _build/nrf52840_xxaa.out
arm-none-eabi-gcc.exe: error: ../../../nrf_sdks/nRF5_SDK_15.2.0_9412b96/external/micro-ecc/nrf52hf_armgcc/armgcc/micro_ecc_lib_nrf52.a: No such file or directory
make: *** [../../../nrf_sdks/nRF5_SDK_15.2.0_9412b96/components/toolchain/gcc/Makefile.common:294: _build/nrf52840_xxaa.out] Fehler 1

How can i fix it?
If i check this directory for the file micro_ecc_lib_nrf52.a i notice that is not there.

MINGW64 ~/nrf52-u2f/boards/nrf52840-mdk-usb-dongle/armgcc
f52hf_armgcc/armgcc/2-u2f/nrf_sdks/nRF5_SDK_15.2.0_9412b96/external/micro-ecc/nrf
ext_micro_ecc_gcc_nRF5x.ld  Makefile

run python-fido2 examples get-info.py and multi_device.py passed.

It's always failed to register a new key for google acount on linux chrome. timeout error.

It can be registered on linux firefox with https://webauthndemo.appspot.com

But It is mostly failed on auth for registered key(only successful once).

When I try Register nrf52-u2f USB Dongle Into Google account.It sucessed.
But when I logout,try to use 2fa to login.blue light on.And Chrome brower
prompt me to push button,I push button,it useless.Can't Login.
system:windows 10 18362
chrome:80.0.3987.116 64bit

I lost access to the DFU Mode, holding RESET while plugging the device does nothing, and pressing it while connect only resets the device. I'd like to go back to uf2 or open bootloader but it seems impossible.

Interested in this project and would like to ask if this firmware can only support both NRF52840-MDK and nRF52840 Micro Dev Kit USB Dongle the two development boards. If I want to use Raspberry-Pi, can it be achieved?

Hi when I run ./generate-certs.sh in my terminal gives me this problem:

Can't open myserver.cnf for reading, No such file or directory
140408292447552:error:02001002:system library:fopen:No such file or directory:../crypto/bio/bss_file.c:69:fopen('myserver.cnf','r')
140408292447552:error:2006D080:BIO routines:BIO_new_file:no such file:../crypto/bio/bss_file.c:76:

I'm doing the steps with Ubuntu 20.04.1 LTS

what libraries do you have to include to use app_uart_put(data) to send data to the uart ? We tried app_uart.h and app_uart_fifo.h but this doesnt work.

• Compatible with more websites/apps
  • Dropbox
  • Stripe
  • Bitbucket
  • FastMail
  • Vultr
• Bluetooth Low Energy support for U2F
• NFC support
• Compatible with FIDO2

Hi,

Just wanted to ask, have there been any plans on implementing OpenPGP card functionality to combine both U2F functionality and OpenPGP functionality?

Hi,
Just wondering if anyone has built this for the nordic usb dongle (not the mdk usb dongle)? I have kind of got it working but I think I'm having trouble mapping the button.

Thanks

Great project! I like the idea to have an open-source U2F token.
Question: Are the secret keys stored in the nRF52's cryptocell?

If I understand correctly, there are two types of secret key:

• the attestation key. In general, it might be shared between a class of authenticator devices, and certified by the device maker; in this case it could not be a cryptocell key, since I suppose keys generated by the cryptocell cannot leave it.

• the assertion keys, which are certified by the attestation key. These are generated by the authenticator, one for each relying party. So it makes sense for these to be generated by the cryptocell.

Grateful for comments (or corrections if I have misunderstood).

Hi, the official has released a much newer version than this one.
Could you please rebuild a new firmware :)
Thanks!

When i active 2-Step Verification account google, the setup just fine, but when i login with chrome the blue light is blinking slow not fast and when the button push not response

How to solve this problem?

hii everyone,

I'm using the Eclipse ide for build the nRF52840 fido security key project .
but i can build the project .
it may be not good setup the GNU arm eclipse plug-in.
plz, help me