/mandos/trunk

The Mandos server announces itself as a Zeroconf service of type

"_mandos._tcp". The Mandos client sends a line of text where the first

whitespace-separated field is the protocol version, which currently is

"1".  The client and server then start a TLS protocol handshake with a

slight quirk: the Mandos server program acts as a TLS "client" while

the connecting Mandos client acts as a TLS "server".  The Mandos

client must supply an OpenPGP certificate, and the fingerprint of this

certificate is used by the Mandos server to look up (in a list read

from a file at start time) which binary blob to give the client.  No

other authentication or authorization is done by the server.

| Mandos server   |     | Mandos client                              |

|                 |     | <Connect>                                  |

|                 | <-  | "1\r\n"                                    |

| <TLS handshake> | <-> | <TLS handshake>                            |

|                 | <-  | OpenPGP public key (part of TLS handshake) |

| <Binary blob>   | ->  |                                            |

| <Close>         |     |                                            |