blake2s_init
rc = blake2s_init(&bctx.ss, ses->mlen);
blake2s_init(&state, outlen);
void blake2s_init(struct blake2s_state *state, const size_t outlen);
blake2s_init(&blake, COOKIE_KEY_SIZE);
blake2s_init(&state, BLAKE2S_HASH_SIZE);
blake2s_init(&state, BLAKE2S_HASH_SIZE);
blake2s_init(&state, BLAKE2S_HASH_SIZE);
blake2s_init(&blake, NOISE_HASH_LEN);
blake2s_init(&blake, NOISE_HASH_LEN);