MessageVortex Protocol
draft-gwerder-messagevortexmain-05

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Internet Engineering Task Force                               M. Gwerder
Internet-Draft                                                      FHNW
Intended status: Experimental                         September 12, 2020
Expires: March 16, 2021

                         MessageVortex Protocol
                   draft-gwerder-messagevortexmain-05

Abstract

   The MessageVortex (referred to as Vortex) protocol achieves different
   degrees of anonymity, including sender, receiver, and third-party
   anonymity, by specifying messages embedded within existing transfer
   protocols, such as SMTP or XMPP, sent via peer nodes to one or more
   recipients.

   The protocol outperforms others by decoupling the transport from the
   final transmitter and receiver.  No trust is placed into any
   infrastructure except for that of the sending and receiving parties
   of the message.  The creator of the routing block (Routing block
   builder;RBB) has full control over the message flow.  Routing nodes
   gain no non-obvious knowledge about the messages even when
   collaborating.  While third-party anonymity is always achieved, the
   protocol also allows for either sender or receiver anonymity.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on March 16, 2021.

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Gwerder                  Expires March 16, 2021                 [Page 1]
Internet-Draft           MessageVortex Protocol           September 2020

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   5
     1.2.  Protocol Specification  . . . . . . . . . . . . . . . . .   5
     1.3.  Number Specification  . . . . . . . . . . . . . . . . . .   5
   2.  Entities Overview . . . . . . . . . . . . . . . . . . . . . .   5
     2.1.  Node  . . . . . . . . . . . . . . . . . . . . . . . . . .   5
       2.1.1.  Blocks  . . . . . . . . . . . . . . . . . . . . . . .   6
       2.1.2.  NodeSpec  . . . . . . . . . . . . . . . . . . . . . .   6
         2.1.2.1.  NodeSpec for SMTP nodes . . . . . . . . . . . . .   6
         2.1.2.2.  NodeSpec for XMPP nodes . . . . . . . . . . . . .   6
     2.2.  Peer Partners . . . . . . . . . . . . . . . . . . . . . .   7
     2.3.  Encryption keys . . . . . . . . . . . . . . . . . . . . .   7
       2.3.1.  Identity Keys . . . . . . . . . . . . . . . . . . . .   7
       2.3.2.  Peer Key  . . . . . . . . . . . . . . . . . . . . . .   7
       2.3.3.  Sender Key  . . . . . . . . . . . . . . . . . . . . .   7
     2.4.  Vortex Message  . . . . . . . . . . . . . . . . . . . . .   8
     2.5.  Message . . . . . . . . . . . . . . . . . . . . . . . . .   8
     2.6.  Key and MAC specifications and usage  . . . . . . . . . .   9
       2.6.1.  Asymmetric Keys . . . . . . . . . . . . . . . . . . .   9
       2.6.2.  Symmetric Keys  . . . . . . . . . . . . . . . . . . .   9
     2.7.  Transport Address . . . . . . . . . . . . . . . . . . . .  10
     2.8.  Identity  . . . . . . . . . . . . . . . . . . . . . . . .  10
       2.8.1.  Peer Identity . . . . . . . . . . . . . . . . . . . .  10
       2.8.2.  Ephemeral Identity  . . . . . . . . . . . . . . . . .  10
       2.8.3.  Official Identity . . . . . . . . . . . . . . . . . .  10
     2.9.  Workspace . . . . . . . . . . . . . . . . . . . . . . . .  11
     2.10. Multi-use Reply Blocks  . . . . . . . . . . . . . . . . .  11
     2.11. Protocol Version  . . . . . . . . . . . . . . . . . . . .  11
   3.  Layer Overview  . . . . . . . . . . . . . . . . . . . . . . .  11
     3.1.  Transport Layer . . . . . . . . . . . . . . . . . . . . .  12
     3.2.  Blending Layer  . . . . . . . . . . . . . . . . . . . . .  12