Messages in this thread | | | Subject | Re: zero-copy TCP fileserving | Date | Thu, 03 Jun 1999 14:13:52 +0300 | From | Olaf Titz <> |
| |
> The Linux network stack is much faster than any decent software encryption > scheme, all of which make a dozen or more read/write rounds on its > input, so that isn't a very interesting case. The interesting cases for
True for block ciphers, but stream ciphers like RC4 just XOR a key stream into the data. It would be interesting to make that as fast as possible (big registers?), which could be a win if the key stream is computed asynchronously in some way (and RC4 is pretty fast in that too).
Don't know if this would be really a win, though. Also the usefulness of stream ciphers is limited (basically, the only level this works on is from a TCP connection upwards).
Olaf
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |