[riot-notifications] [RIOT-OS/RIOT] pkg/micro-ecc: Use random API instead of hwrng (#7393)

Tobias Heider notifications at github.com
Sun Feb 3 13:21:58 CET 2019

> I tried running the remaining test application which fails for samr21-xpro and nucleo-l073rz. Ideas? Which boards did you test with?

I have tested this on the nucleo-f411re and on native because that's what i had at hand. Both ran without failures. I guess i could need some help for tests on further hardware here. Any details on what broke on the boards you tested?

> I think the documentation of the pkg should still state that `ECC_make_key` and `uECC_sign` APIs expect the random module to be seeded with a high entopy, random seed

Right, i will look it up and fix it.

> The Micro-Ecc documentation states: "The filled-in values should be either truly random, or from a cryptographically-secure PRNG.". I would propose to make the SHA1PRNG a dependency of that package.

Good idea, will do.

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