tree 33134e8e72d2be50817fb40d1e0efb4a774b49b4
parent df9633b21cd4888ab0c0bbeb5ad2386b575c6c92
author Hanno Becker <hanno.becker@arm.com> 1566822613 +0100
committer Hanno Becker <hanno.becker@arm.com> 1567497545 +0100

Allow ssl_client2/ssl_server2 to use HMAC DRBG instead of CTR DRBG

So far, ssl_client2 and ssl_server2 were relying on MBEDTLS_CTR_DRBG_C
being set. This commit adapts them to use HMAC DRBG in case CTR DRBG
is disabled in the configuration.

Note that disabling CTR DRBG in favor of HMAC DRBG can be useful on
constrained systems because Mbed TLS' HMAC DRBG is slightly smaller,
and moreover needed anyway as part of deterministic ECDSA.