blake2s_init
blake2s_init(&blake, NOISE_SYMMETRIC_KEY_LEN);
blake2s_init(&blake, BLAKE2S_HASH_SIZE);
blake2s_init(&blake, BLAKE2S_HASH_SIZE);
blake2s_init(&blake, BLAKE2S_HASH_SIZE);
blake2s_init(&blake, NOISE_HASH_LEN);
blake2s_init(&blake, NOISE_HASH_LEN);
blake2s_init(ctx, BLAKE2S_HASH_SIZE);
blake2s_init(&main_ctx, BLAKE2S_HASH_SIZE);
blake2s_init(&main_ctx, sizeof(hash));
blake2s_init(&ctx, HASH_LEN);
blake2s_init(&ctx, HASH_LEN);
blake2s_init(&ctx, sizeof(bnote.build_id));