Mathematical Mesh Part VIII: Cryptographic Algorithms
draft-hallambaker-mesh-cryptography-00

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Network Working Group                                    P. Hallam-Baker
Internet-Draft                                             April 4, 2019
Intended status: Informational
Expires: October 6, 2019

         Mathematical Mesh Part VIII: Cryptographic Algorithms
                 draft-hallambaker-mesh-cryptography-00

Abstract

   The Mathematical Mesh 'The Mesh' is an infrastructure that
   facilitates the exchange of configuration and credential data between
   multiple user devices and provides end-to-end security.  This
   document describes the advanced encryption services supported by the
   Mesh.

   This document is also available online at
   http://mathmesh.com/Documents/draft-hallambaker-mesh-
   cryptography.html [1] .

Status of This Memo

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   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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Hallam-Baker             Expires October 6, 2019                [Page 1]
Internet-Draft         Mathematical Mesh Reference            April 2019

   to this document.  Code Components extracted from this document must
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Definitions . . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
     2.2.  Defined Terms . . . . . . . . . . . . . . . . . . . . . .   3
     2.3.  Related Specifications  . . . . . . . . . . . . . . . . .   3
     2.4.  Implementation Status . . . . . . . . . . . . . . . . . .   3
   3.  Recommended and Required Algorithms . . . . . . . . . . . . .   4
   4.  Key Co-Generation . . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  Mechanism . . . . . . . . . . . . . . . . . . . . . . . .   4
       4.1.1.  Application to Elliptic Curve systems . . . . . . . .   5
     4.2.  Implementation for Ed25519 and Ed448  . . . . . . . . . .   5
     4.3.  Example: Provisioning the Confirmation Service  . . . . .   6
     4.4.  Implementation for X25519 and X448  . . . . . . . . . . .   7
   5.  Recryption  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     5.1.  Mechanism . . . . . . . . . . . . . . . . . . . . . . . .   8
     5.2.  Implementation  . . . . . . . . . . . . . . . . . . . . .   9
       5.2.1.  Group Creation  . . . . . . . . . . . . . . . . . . .  10
       5.2.2.  Provisioning a Member . . . . . . . . . . . . . . . .  10
       5.2.3.  Message Encryption and Decryption . . . . . . . . . .  11
     5.3.  Example: Messaging group  . . . . . . . . . . . . . . . .  11
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  13
   9.  Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .  13
     9.1.  Key Combination . . . . . . . . . . . . . . . . . . . . .  13
       9.1.1.  Ed25519 . . . . . . . . . . . . . . . . . . . . . . .  13
       9.1.2.  Ed448 . . . . . . . . . . . . . . . . . . . . . . . .  13
       9.1.3.  X25519  . . . . . . . . . . . . . . . . . . . . . . .  13
       9.1.4.  X448  . . . . . . . . . . . . . . . . . . . . . . . .  13
     9.2.  Group Encryption  . . . . . . . . . . . . . . . . . . . .  13
       9.2.1.  X25519  . . . . . . . . . . . . . . . . . . . . . . .  13
       9.2.2.  X448  . . . . . . . . . . . . . . . . . . . . . . . .  13
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  13
     10.2.  Informative References . . . . . . . . . . . . . . . . .  14
     10.3.  URIs . . . . . . . . . . . . . . . . . . . . . . . . . .  14
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  14
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