draft-riikonen-silc-spec-05.txt

[Pekka R. <pri...@ik...>]

A new Internet Draft defining the Secure Internet Live Conferencing (SILC)
Protocol is available, and has been submitted to the IETF.

o Secure Internet Live Conferencing (SILC), Protocol Specification

  http://silcnet.org/docs/draft-riikonen-silc-spec-05.txt

  Abstract

   This memo describes a Secure Internet Live Conferencing (SILC)
   protocol which provides secure conferencing services over insecure
   network channel.  SILC is IRC [IRC] like protocol, however, it is
   not equivalent to IRC and does not support IRC.  Strong cryptographic
   methods are used to protect SILC packets inside the SILC network.
   Three other Internet Drafts relates very closely to this memo;
   SILC Packet Protocol [SILC2], SILC Key Exchange and Authentication
   Protocols [SILC3] and SILC Commands [SILC4].

Changes to previous draft:

o Changed nickname and channel name length statement from
  "characters" to "bytes".

o Defined that the nickname in SILC is lowercase always, and the
  Client ID hash MUST be computed from lowercase nickname.

o Defined that there MAY be commands that server can send to client.

o Defined that all passphrases sent in SILC protocol MUST be UTF-8
  encoded.

o Defined that if Authentication Data Length in Authentication
  Payload is zero (0), the payload MUST be discarded, and authentication
  fails.

o Defined that the hash() and sign() functions used in Authentication
  Payload may be seprately defined in the context where the payload
  is used, instead of just using functions selected in SKE.

o Added the references for computing signatures with different
  kind of keys.

o Defined that all strings in SILC Public key are UTF-8 encoded.

o Defined that the version string MUST be US-ASCII encoded.

o Incremented the SILC Protocol version from 1.0 to 1.1, and the
  required protocol version string is SILC-1.1 now.

o Defined the when new client comes to network its nickname MUST
  be checked from the watcher list.

o Defined that when client leaves the network its nickname MUST
  be checked from the watcher list.

o Defined that if channel message is sent to unknown Channel ID
  the SILC_NOTIFY_TYPE_ERROR must be sent to the sender of the
  message.

o Defined that if private message is sent to unknown Client ID
  the SILC_NOTIFY_TYPE_ERROR must be sent to the sender of the
  message.

o Added session detaching and resuming definition.

	Pekka
________________________________________________________________________
 Pekka Riikonen                                 priikone at silcnet.org
 Secure Internet Live Conferencing (SILC)       http://silcnet.org/