Addition of Camellia Cipher Suites to Transport Layer Security (TLS)
RFC 4132
| Document | Type |
RFC - Proposed Standard
(July 2005; No errata)
Obsoleted by RFC 5932
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 4132 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Russ Housley | ||
| Send notices to | shiho@rd.scei.sony.co.jp, <treese@acm.org>, ekr@rtfm.com | ||
Network Working Group S. Moriai
Request for Comments: 4132 Sony Computer Entertainment Inc.
Category: Standards Track A. Kato
NTT Software Corporation
M. Kanda
Nippon Telegraph and Telephone Corporation
July 2005
Addition of Camellia Cipher Suites to Transport Layer Security (TLS)
Status of This Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2005).
Abstract
This document proposes the addition of new cipher suites to the
Transport Layer Security (TLS) protocol to support the Camellia
encryption algorithm as a bulk cipher algorithm.
1. Introduction
This document proposes the addition of new cipher suites to the TLS
protocol [TLS] to support the Camellia encryption algorithm as a bulk
cipher algorithm. This proposal provides a new option for fast and
efficient bulk cipher algorithms.
Note: This work was done when the first author worked for NTT.
1.1. Camellia
Camellia was selected as a recommended cryptographic primitive by the
EU NESSIE (New European Schemes for Signatures, Integrity and
Encryption) project [NESSIE] and included in the list of
cryptographic techniques for Japanese e-Government systems, which
were selected by the Japan CRYPTREC (Cryptography Research and
Evaluation Committees) [CRYPTREC]. Camellia is also included in
specification of the TV-Anytime Forum [TV-ANYTIME]. The TV-Anytime
Forum is an association of organizations that seeks to develop
Moriai, et al. Standards Track [Page 1]
RFC 4132 Camellia Cipher Suites for TLS July 2005
specifications to enable audio-visual and other services based on
mass-market high-volume digital storage in consumer platforms.
Camellia is specified as Cipher Suite in TLS used by Phase 1 S-7
(Bi-directional Metadata Delivery Protection) specification and S-5
(TV-Anytime Rights Management and Protection Information for
Broadcast Applications) specification. Camellia has been submitted
to other several standardization bodies such as ISO (ISO/IEC 18033)
and IETF S/MIME Mail Security Working Group [Camellia-CMS].
Camellia supports 128-bit block size and 128-, 192-, and 256-bit key
sizes; i.e., the same interface specifications as the Advanced
Encryption Standard (AES) [AES].
Camellia was jointly developed by NTT and Mitsubishi Electric
Corporation in 2000 [CamelliaTech]. It was carefully designed to
withstand all known cryptanalytic attacks and even to have a
sufficiently large security leeway. It has been scrutinized by
worldwide cryptographic experts.
Camellia was also designed to be suitable for both software and
hardware implementations and to cover all possible encryption
applications, from low-cost smart cards to high-speed network
systems. Compared to the AES, Camellia offers at least comparable
encryption speed in software and hardware. In addition, a
distinguishing feature is its small hardware design. Camellia
perfectly meets one of the current TLS market requirements, for which
low power consumption is mandatory.
The algorithm specification and object identifiers are described in
[Camellia-Desc]. The Camellia homepage,
http://info.isl.ntt.co.jp/camellia/, contains a wealth of information
about camellia, including detailed specification, security analysis,
performance figures, reference implementation, and test vectors.
1.2. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHOULD", "SHOULD NOT",
"RECOMMENDED", "MAY", and "OPTIONAL" in this document (in uppercase,
as shown) are to be interpreted as described in [RFC2119].
2. Proposed Cipher Suites
The new cipher suites proposed here have the following definitions:
CipherSuite TLS_RSA_WITH_CAMELLIA_128_CBC_SHA = { 0x00,0x41 };
CipherSuite TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA = { 0x00,0x42 };
CipherSuite TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA = { 0x00,0x43 };
CipherSuite TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA = { 0x00,0x44 };
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