TODO/bugs in Irssi SILC client
==============================

 o Add local command to switch the channel's private key when channel has
   several private keys.  Currently sending channel messages with many
   keys is not possible because changing the key is not possible by the
   user.

 o JOINing to +a (requires passphrase to JOIN) does not work on autojoin.
   Seems the passwords in the .silc/config has no effect.

 o Add local commands to list the current server and client public keys
   that the user has.  And a local command to dump the contents of the
   public key to the screen.  Something like LISTKEYS, SHOWKEY...

 o We should get rid of the clientconfig.[ch] in Irssi SILC and move the
   cipher, hash, hmac and pkcs configuration to the Irssi SILC's config
   file.

 o Add PERL scripting support from Irssi CVS.

 o Extend the /HELP command to support sub commands or something.  So
   that user can say /help set mutual_authentication they would get
   help of the mutual_authentication setting.

 o Set different kind of settings, like, /set mutual_authentication,
   /set key_exchange_timeout, /set conn_auth_timeout etc etc.


TODO/bugs In SILC Client Library
================================

 o The PRIVATE_MESSAGE_KEY packet is not handled (it is implemented 
   though).  This should be added and perhaps new client operation
   should be added to notify application that it was received and
   set the key only if application wishes to set (accept the key) it.

 o should /nick nick and /nick Nick cause the Nick to be Nick@host becase
   it used to be nick??

 o When changing own nickname and there exists a same nickname the library
   can give the client now nickname in format nick@host.  This is new
   behaviour and maybe should be removed.  The changer should always
   get the one it wants and not have the formatted nickname.

 o Remove the command destructor all together from the client, it is
   not needed and its usage is buggy when the context is registered
   to multiple pending commands.

 o Additions to do after protocol version 1.1:

	o Fix the NICK_CHANGE notify handling not to create new entry
	  for the changed client, but take the nickname from the notify
	  (removes need for resolving as well).  Protocol TODO entry 3.

	o Add support for list of errors in command replies.  Protocol
	  TODO entry 1.


TODO/bugs In SILC Server
========================

 o strerror messages from premature EOF's to signoff messages.
   (add perhaps a socket error thingy to SilcSockeConnection).

 o Backup router related issues

 	o Channel user mode changes are notified unnecessarely when
	  switching to backup router on router crash.

 o Add a timeout to handling incoming JOIN commands.  It should be 
   enforced that JOIN command is executed only once in a second or two
   seconds.  Now it is possible to accept n incoming JOIN commands
   and process them without any timeouts.  THis must be employed because
   each JOIN command will create and distribute the new channel key
   to everybody on the channel.

 o New configuration file format must be added.  The new one will be
   done using the dotconf config library (lib/dotconf).  The following
   tasks relates closely to this as well and must be done at the same time
   when adding the new config file format:

	o Server says that it is able to listen on multiple ports but
	  currently that is bogus.  It can, but internals are for single
	  server.

 	o Protocol execution timeouts are hard coded, should be
	  configurable.

 	o IP address fields in configuration file should accept mask
	  format as well, IP/MASK, and not just plain IP.

 o If client's public key is saved in the server (and doing public key
   authentication) then the hostname and the username information could
   be taken from the public key.  Should be a configuration option!


TODO/bugs In SILC Libraries
===========================

 o make install copies the symblic links from lib/silcsim/ and not
   modules.

 o WIN32 silc_net_create_connection_async does not work the same way
   than on Unix.  Do it with threads on WIN32.  The function works but
   is not actually async currently.

 o Rewrite the lib/silcsim/silcsim.h.  The SilcSimContext should be
   private and silc_sim_alloc should take necessary arguments.


TODO in SILC Protocol
=====================

Current protocol version is 1.0.  However, it is far from being perfect,
and needs to include additional features.  Following protocol TODO entries
describe new stuff to be added to protocol versions 1.x.

 1. Re-define the Status Payload: it is now 16 bits, split it into two
    8 bits fields.  First field includes status types from 0 - 9 and
    10 - n *if* it is not an list of errors.  If it is list of errors then
    the first field includes 1, 2 and/or 3, and the second field includes
    the error status 10 - n.  This way it is possible to send multiple
    errors (list of errors) and we have a way to tell the receiver that
    there will be other errors as well.  The second field is used only
    if there is list of errors.  If normal status, or normal (single)
    error status the second field is set to zero, and must be ignored.
    Hence, the status works same way as now except for list of errors.
    To be included in protocol version 1.1.

 2. Define that WHOIS and IDENTIFY commands must send list of errors
    if multiple Client ID (or Channel ID and Server ID for IDENTIFY) was
    requested and was not found.  Each unfound entry must cause an error
    command reply to the sender.  Also define that errors must be sent
    *after* sending successfully found entries (this way receiver may
    ignore them).  To be included in protocol version 1.1.

 3. Define the NICK_CHANGE notify to send the changed nickname as a new
    third argument.  This will make the NICK_CHANGE notify handling easier
    in the receiver's end (client primarily) since it removes the
    requirement that receiver must resolve (using IDENTIFY or WHOIS) the
    new Client ID received in the notify (because of the new nickname is
    unknown).  To be included in protocol version 1.1.

 4. Add "request parameters" or similar to the WHOIS command, which can
    be used to request various parameters (something not returned by
    standard WHOIS command) about clients (info that could be fetched
    even from clients).  Additional specification (or appendix) should 
    be done to define the payload and the parameters.  It could be used
    to make the WHOIS command support various search conditions as well.
    This would be the way to extend the WHOIS command to support various
    new features without always making the command incompatible to previous
    version.  To be included in protocol version 1.1.

 5. Inviting and banning by public key should be made possible.  To be
    included in protocol version 1.x.

 6. Add perhaps SILENCE_USERS, SILENCE_OPERS channel user modes which
    can be used to silence (moderate) normal users and opers (this set
    only by founder).  To be included in protocol version 1.1.

 7. Channel Message Payload needs slight redesining to include the IV
    field to the MAC generation of the payload.  It is authenticated
    by the packet's MAC but not by the payload's MAC.  Since the IV
    belongs to the payload, its integrity should be protected by the
    payload MAC and not alone by packet MAC.  To be included in protocol 
    version 1.1.


TODO After 1.0
==============

 o Compression routines are missing.  The protocol supports packet
   compression thus it must be implemented.  SILC Zip API must be
   defined.  zlib package is already included into the lib dir (in CVS,
   not in distribution), but it is not used yet, and it requires some
   tweaking on the Makefiles (we want static lib not shared).

 o Implement the defined SilcDH API.  The definition is in
   lib/silccrypt/silcdh.h.

 o Add builtin SOCKS and HTTP Proxy support, well the SOCKS at least.
   SILC currently supports SOCKS4 and SOCKS5 but it needs to be compiled
   in separately.

 o X.509 certificate support.  SILC protocol supports certificates and
   it would be great to have support for them.  This is a big task as
   support has to be made for ASN.1 as well.  I've looked into OpenSSL 
   package as it has X.509 certificate support (and ASN.1 as well).  
   The code does not look very good to my eye but it has some potentials.
   This should be looked at more closely.

   Naturally own SILC Certificate API has to be defined regardles what
   the actual X.509 library is (OpenSSL X.509 or something else).  Other
   choice is to write own X.509 library but I'm not going to do it - 
   I can help to migrate the OpenSSL X.509 into SILC and I can help if 
   someone would like to write the X.509 library - but I'm not going 
   to start writing one myself.  Anyhow, the OpenSSL X.509 lib should
   be checked.

   Other package that should be checked is the NSS's X509 library,
   which I like more over OpenSSL package.

 o SSH2 public keys support.

 o OpenPGP certificate support.

 o Cipher optimizations (asm, that this) at least for i386 would be nice.
