Byzantine Fault Tolerant Set Reconciliation
draft-summermatter-set-union-00

Document Type Active Internet-Draft (individual)
Authors Elias Summermatter  , Christian Grothoff 
Last updated 2021-01-23
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Independent Stream                                       E. Summermatter
Internet-Draft                                               Seccom GmbH
Intended status: Informational                               C. Grothoff
Expires: 27 July 2021                              Berner Fachhochschule
                                                         23 January 2021

              Byzantine Fault Tolerant Set Reconciliation
                    draft-summermatter-set-union-00

Abstract

   This document contains a protocol specification for Byzantine fault-
   tolerant Set Reconciliation.

Status of This Memo

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

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   This Internet-Draft will expire on 27 July 2021.

Copyright Notice

   Copyright (c) 2021 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Summermatter & Grothoff   Expires 27 July 2021                  [Page 1]
Internet-Draft                  Set Union                   January 2021

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Background  . . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.1.  Bloom Filters . . . . . . . . . . . . . . . . . . . . . .   5
     2.2.  Counting Bloom Filter . . . . . . . . . . . . . . . . . .   6
   3.  Invertible Bloom Filter . . . . . . . . . . . . . . . . . . .   7
     3.1.  Structure . . . . . . . . . . . . . . . . . . . . . . . .   7
     3.2.  Operations  . . . . . . . . . . . . . . . . . . . . . . .   8
       3.2.1.  Insert Element  . . . . . . . . . . . . . . . . . . .   8
       3.2.2.  Remove Element  . . . . . . . . . . . . . . . . . . .   9
       3.2.3.  Decode IBF  . . . . . . . . . . . . . . . . . . . . .  10
       3.2.4.  Set Difference  . . . . . . . . . . . . . . . . . . .  12
     3.3.  Wire format . . . . . . . . . . . . . . . . . . . . . . .  14
       3.3.1.  ID Calculation  . . . . . . . . . . . . . . . . . . .  14
       3.3.2.  Mapping Function  . . . . . . . . . . . . . . . . . .  15
       3.3.3.  HASH calculation  . . . . . . . . . . . . . . . . . .  16
   4.  Strata Estimator  . . . . . . . . . . . . . . . . . . . . . .  17
     4.1.  Description . . . . . . . . . . . . . . . . . . . . . . .  17
   5.  Mode of operation . . . . . . . . . . . . . . . . . . . . . .  17
     5.1.  Full Synchronisation Mode . . . . . . . . . . . . . . . .  18
     5.2.  Delta Synchronisation Mode  . . . . . . . . . . . . . . .  19
     5.3.  Combined Mode . . . . . . . . . . . . . . . . . . . . . .  22
   6.  Messages  . . . . . . . . . . . . . . . . . . . . . . . . . .  22
     6.1.  Operation Request . . . . . . . . . . . . . . . . . . . .  22
       6.1.1.  Description . . . . . . . . . . . . . . . . . . . . .  23
       6.1.2.  Structure . . . . . . . . . . . . . . . . . . . . . .  23
     6.2.  IBF . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
       6.2.1.  Description . . . . . . . . . . . . . . . . . . . . .  23
       6.2.2.  Structure . . . . . . . . . . . . . . . . . . . . . .  24
     6.3.  IBF . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
       6.3.1.  Description . . . . . . . . . . . . . . . . . . . . .  25
     6.4.  Elements  . . . . . . . . . . . . . . . . . . . . . . . .  25
       6.4.1.  Description . . . . . . . . . . . . . . . . . . . . .  26
       6.4.2.  Structure . . . . . . . . . . . . . . . . . . . . . .  26
     6.5.  Offer . . . . . . . . . . . . . . . . . . . . . . . . . .  27
       6.5.1.  Description . . . . . . . . . . . . . . . . . . . . .  27
       6.5.2.  Structure . . . . . . . . . . . . . . . . . . . . . .  27
     6.6.  Inquiry . . . . . . . . . . . . . . . . . . . . . . . . .  27
       6.6.1.  Description . . . . . . . . . . . . . . . . . . . . .  27
       6.6.2.  Structure . . . . . . . . . . . . . . . . . . . . . .  28
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