multiple definition of `default_CSPRNG'

[jonathan.fattouh]

Hello,

I have a project that uses JWT.

When migrating from nRFConnect SDK 1.6.1 to 1.9.1, build failed with message: multiple definition of `default_CSPRNG'

The error can be easly replicated by opening a BLE sample (peripheral_uart) and adding to the prj.conf:

CONFIG_JWT=y
CONFIG_JWT_SIGN_ECDSA=y

The error is :

j): in function `default_CSPRNG':
C:\ncs\v1.9.1\zephyr\subsys\jwt\jwt.c:273: multiple definition of `default_CSPRNG'; zephyr/subsys/bluetooth/host/libsubsys__bluetooth__host.a(hci_ecc.c.obj):C:\ncs\v1.9.1\zephyr\subsys\bluetooth\host\hci_ecc.c:351: first defined here
collect2.exe: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.

Modifying the name of default_CSPRNG to something else in the file jwt.c allows the build to finish correctly but i don't know if it might cause issue elsewhere.

Anyone knows a proper way to use JWT?

Thank you

Best regards

[Amanda Hsieh]

Hi, 

We are checking with the internal and will reply later. 

Regards,
Amanda

[Sigurd]

Hi jonathan.fattouh ,

We are working on fixing this naming conflict. In the meantime, renaming is fine. (As the RNG is being re-registered on every jwt_sign() call).

Here is a link to the PR, if you want to follow the on-going work: https://github.com/zephyrproject-rtos/zephyr/pull/46971

[jonathan.fattouh]

Thank you

Jonathan