New Cryptographic Algorithms for HIP
draft-moskowitz-hip-new-crypto-02

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HIP                                                         R. Moskowitz
Internet-Draft                                            HTT Consulting
Intended status: Standards Track                                 S. Card
Expires: April 5, 2020                                   A. Wiethuechter
                                                           AX Enterprize
                                                         October 3, 2019

                  New Cryptographic Algorithms for HIP
                   draft-moskowitz-hip-new-crypto-02

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

   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 April 5, 2020.

Copyright Notice

   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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   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   include Simplified BSD License text as described in Section 4.e of

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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

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 Crytpo . . . . . . . . . . . . .   4
     3.1.  Elliptic Curves for Diffie-Hellman  . . . . . . . . . . .   4
       3.1.1.  DIFFIE_HELLMAN  . . . . . . . . . . . . . . . . . . .   4
     3.2.  Edward Digital Signature Algorithm  . . . . . . . . . . .   4
       3.2.1.  HOST_ID . . . . . . . . . . . . . . . . . . . . . . .   5
       3.2.2.  HIT_SUITE_LIST  . . . . . . . . . . . . . . . . . . .   5
     3.3.  Hashing with the Keccak Function  . . . . . . . . . . . .   6
       3.3.1.  The Keccak Permutation  . . . . . . . . . . . . . . .   6
       3.3.2.  RHASH . . . . . . . . . . . . . . . . . . . . . . . .   7
       3.3.3.  HIP_MAC and HIP_MAC2  . . . . . . . . . . . . . . . .   7
     3.4.  HIP Cipher  . . . . . . . . . . . . . . . . . . . . . . .   7
       3.4.1.  HIP_CIPHER  . . . . . . . . . . . . . . . . . . . . .   7
   4.  Generating a HIT from an HI . . . . . . . . . . . . . . . . .   8
   5.  HIP KEYMAT Generation . . . . . . . . . . . . . . . . . . . .   8
   6.  Using Keccak for a Pseudorandom Function  . . . . . . . . . .   9
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
     8.1.  Keymat vulnerabilities  . . . . . . . . . . . . . . . . .   9
   9.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   9
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  10
     10.2.  Informative References . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

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

   o  New elliptic curves for ECDH.

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

   o  Hashes used in Host Identity Tag (HIT) generation, and wherever
      else hashes are needed.

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   o  Keyed hashes used for KEYMAT generation and packet MACing
      operations.
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