MessageVortex Protocol
draft-gwerder-messagevortexmain-04

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Internet Engineering Task Force                                  Gwerder
Internet-Draft                                                      FHNW
Intended status: Experimental                             March 12, 2020
Expires: September 13, 2020

                         MessageVortex Protocol
                   draft-gwerder-messagevortexmain-04

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 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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   This Internet-Draft will expire on September 13, 2020.

Copyright Notice

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

Gwerder                Expires September 13, 2020               [Page 1]
Internet-Draft           MessageVortex Protocol               March 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