New Cryptographic Algorithms for HIP
draft-moskowitz-hip-new-crypto-09

Document Type Active Internet-Draft (individual)
Authors Robert Moskowitz  , Stuart Card  , Adam Wiethuechter 
Last updated 2021-01-28
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HIP                                                         R. Moskowitz
Internet-Draft                                            HTT Consulting
Updates: 7401, 7402 (if approved)                                S. Card
Intended status: Standards Track                         A. Wiethuechter
Expires: 1 August 2021                                     AX Enterprize
                                                         28 January 2021

                  New Cryptographic Algorithms for HIP
                   draft-moskowitz-hip-new-crypto-09

Abstract

   This document provides new cryptographic algorithms to be used with
   HIP.  The Edwards Elliptic Curve and the Keccak sponge functions are
   the main focus.  The HIP parameters and processing instructions
   impacted by these algorithms are defined.

Status of This Memo

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   This Internet-Draft will expire on 1 August 2021.

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

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Moskowitz, et al.         Expires 1 August 2021                 [Page 1]
Internet-Draft               HIP New Crypto                 January 2021

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terms and Definitions . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Requirements Terminology  . . . . . . . . . . . . . . . .   3
     2.2.  Definitions . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  HIP Parameter values for new Cryptographic Functions  . . . .   4
     3.1.  Elliptic Curves for Diffie-Hellman  . . . . . . . . . . .   4
       3.1.1.  DIFFIE_HELLMAN  . . . . . . . . . . . . . . . . . . .   5
     3.2.  Edward Digital Signature Algorithm for HITs . . . . . . .   5
       3.2.1.  HOST_ID . . . . . . . . . . . . . . . . . . . . . . .   5
       3.2.2.  HIT_SUITE_LIST  . . . . . . . . . . . . . . . . . . .   6
     3.3.  Hashing in HIP  . . . . . . . . . . . . . . . . . . . . .   7
       3.3.1.  Hashing with the Sponge Functions . . . . . . . . . .   7
       3.3.2.  RHASH . . . . . . . . . . . . . . . . . . . . . . . .   8
       3.3.3.  HIP_MAC and HIP_MAC2  . . . . . . . . . . . . . . . .   8
     3.4.  HIP Cipher  . . . . . . . . . . . . . . . . . . . . . . .   9
       3.4.1.  HIP_CIPHER  . . . . . . . . . . . . . . . . . . . . .   9
     3.5.  ESP Transform . . . . . . . . . . . . . . . . . . . . . .   9
       3.5.1.  ESP_TRANSFORM . . . . . . . . . . . . . . . . . . . .  10
   4.  Generating a HIT from an HI . . . . . . . . . . . . . . . . .  10
   5.  HIP KEYMAT Generation . . . . . . . . . . . . . . . . . . . .  10
     5.1.  The Keccak KEYMAT . . . . . . . . . . . . . . . . . . . .  11
     5.2.  The Xoodyak KEYMAT  . . . . . . . . . . . . . . . . . . .  11
   6.  Pseudorandom Function (PRF) . . . . . . . . . . . . . . . . .  12
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  12
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
     8.1.  Keymat vulnerabilities  . . . . . . . . . . . . . . . . .  12
     8.2.  KMAC Security as a KDF  . . . . . . . . . . . . . . . . .  13
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  13
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  13
     10.2.  Informative References . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  16

1.  Introduction

   This document adds new cryptographic algorithms for HIPv2 [RFC7401]
   and [RFC7402].  This includes:

   *  New elliptic curves for ECDH.

   *  The Edwards Elliptic Curve Digital Signature Algorithm (EdDSA)
      used in Host Identities (HI) and for Base Exchange (BEX)
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