ECC Brainpool Curves for Transport Layer Security (TLS) Version 1.3
draft-bruckert-brainpool-for-tls13-02
Network Working Group L. Bruckert
Internet-Draft J. Merkle
Intended status: Informational secunet Security Networks
Expires: August 10, 2019 M. Lochter
BSI
February 6, 2019
ECC Brainpool Curves for Transport Layer Security (TLS) Version 1.3
draft-bruckert-brainpool-for-tls13-02
Abstract
This document specifies the use of several ECC Brainpool curves for
authentication and key exchange in the Transport Layer Security (TLS)
protocol version 1.3.
Status of This Memo
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This Internet-Draft will expire on August 10, 2019.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Brainpool NamedGroup Types . . . . . . . . . . . . . . . . . 2
3. Brainpool SignatureScheme Types . . . . . . . . . . . . . . . 3
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 3
5. Security Considerations . . . . . . . . . . . . . . . . . . . 4
6. References . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.1. Normative References . . . . . . . . . . . . . . . . . . 5
6.2. Informative References . . . . . . . . . . . . . . . . . 6
Appendix A. Test Vectors . . . . . . . . . . . . . . . . . . . . 8
A.1. 256 Bit Curve . . . . . . . . . . . . . . . . . . . . . . 8
A.2. 384 Bit Curve . . . . . . . . . . . . . . . . . . . . . . 9
A.3. 512 Bit Curve . . . . . . . . . . . . . . . . . . . . . . 9
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 10
1. Introduction
In [RFC5639], a new set of elliptic curve groups over finite prime
fields for use in cryptographic applications was specified. These
groups, denoted as ECC Brainpool curves, were generated in a
verifiably pseudo-random way and comply with the security
requirements of relevant standards from ISO [ISO1] [ISO2], ANSI
[ANSI1], NIST [FIPS], and SecG [SEC2].
[RFC8422] defines the usage of elliptic curves for authentication and
key agreement in TLS 1.2 and earlier versions, and [RFC7027] defines
the usage of the ECC Brainpool curves for authentication and key
exchange in TLS. The latter is applicable to TLS 1.2 and earlier
versions, but not to TLS 1.3 that deprecates the ECC Brainpool Curve
IDs registered for the use of ECC Brainpool Curves in earlier TLS
versions.
The negotiation of ECC Brainpool Curves for key exchange according to
[RFC8446] requires the definition and assignment of additional
NamedGroup IDs. This document specifies such values for three curves
from [RFC5639].
The negotiation of ECC Brainpool Curves for authentication according
to [RFC8446] requires the definition and assignment of additional
SignatureScheme IDs. This document specifies such values for three
curves from [RFC5639].
2. Brainpool NamedGroup Types
According to [RFC8446], the name space NamedGroup is used for the
negotiation of elliptic curve groups for key exchange during a
handshake starting a new TLS session. This document adds new
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NamedGroup types to three elliptic curves defined in [RFC5639] as
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