Function sphinx_write_frame

common/sphinx.c:483–491

}

static void sphinx_write_frame(u8 *dest,
			       const struct sphinx_hop *hop,
			       const struct hmac *hmac)
{
	BUILD_ASSERT(sizeof(hmac->bytes) == HMAC_SIZE);
	memcpy(dest, hop->raw_payload, tal_bytelen(hop->raw_payload));
	memcpy(dest + tal_bytelen(hop->raw_payload),
	       hmac->bytes, HMAC_SIZE);
}

static void sphinx_prefill_stream_xor(u8 *dst, size_t dstlen,
				      const struct secret *shared_secret)