Issue running ECDSA with a different backend

RE: Issue running ECDSA with a different backend

cdugue — Tue, 07 May 2019 13:30:50 GMT

That fixed it, thanks!

RE: Issue running ECDSA with a different backend

Vidar Berg — Tue, 07 May 2019 07:04:39 GMT

Hello,

I got the same error. Turns out that you need to enable the nrf RNG since you're not using the RNG in CC310. Set NRF_CRYPTO_BACKEND_NRF_HW_RNG_ENABLED to '1' in sdk_config.h to enable it.

RE: Issue running ECDSA with a different backend

cdugue — Mon, 06 May 2019 12:30:48 GMT

Hello,

I am attempting to use secp256r1 which is supported by the three backends on the nRF52840 but I get the error mentioned above at runtime.

RE: Issue running ECDSA with a different backend

Vidar Berg — Mon, 06 May 2019 11:25:46 GMT

Hello,

Please make sure that you're using a curve supported by both cc310 and Oberon. The ecdsa project for pca10040 (nrf52832) uses the Oberon backend.