$Id: TODO,v 1.1 1998/01/13 17:28:11 um Exp um $

* communication via sockets, forward secrecy
* local queue for outgoing messages to foil traffic analysis
* Why does SunOS `read' read 4 characters at a time?
* re-write key management: Support multiple keys with expiry dates.
* support elliptic curve encryption (unpatented, much shorter session
  keys in the mix headers)
* hashcash support
* free() allocated memory at various places
* collect entropy from system ressources
