[gnutls-devel] GnuTLS | gnutls | nettle/rnd-fips: add FIPS 140-2 continuous RNG test (!1034)

[Development of GNU's TLS library]

Daiki Ueno commented on a discussion on lib/nettle/rnd-fips.c: https://gitlab.com/gnutls/gnutls/merge_requests/1034#note_186108308

>  	return 0;
>  }
>  
> +static int get_entropy(struct fips_ctx *fctx, uint8_t *buffer, size_t length)

Given fctx is thread local, the function should be thread safe. However, it raises another question: if multiple threads are simultaneously retrieve entropy through this function, that would invalidate the continuous check. Maybe we need to add a global storage and control access using a lock.

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