Fix the TLSv1.3 key schedule implementation.

When the RFC refers to ("") for key derivation, it is referring to the
transcript hash of an empty string, not an empty string. Rename
tls13_secrets_new() to tls13_secrets_create(), make it take an EVP_MD *
and calculate the hash of an empty string so that we have it available
for the "derived" and other steps. Merge tls13_secrets_init() into
the same function, remove the EVP_MD * from other functions and use the
empty string hash at the appropriate places.

ok beck@ tb@

0 files changed, 0 insertions, 0 deletions