One document matched: draft-kato-tls-rfc4132bis-05.txt
Differences from draft-kato-tls-rfc4132bis-04.txt
Network Working Group A. Kato
Internet-Draft NTT Software Corporation
Obsoletes: 4132 (if approved) M. Kanda
Intended status: Standards Track NTT
Expires: September 24, 2010 S. Kanno
NTT Software Corporation
March 23, 2010
Camellia Cipher Suites for TLS
draft-kato-tls-rfc4132bis-05
Abstract
This document specifies a set of cipher suites for the Transport
Security Layer (TLS) protocol to support the Camellia encryption
algorithm as a block cipher. It amends the cipher suites originally
specifed in RFC 4132 by counterparts using the newer cryptographic
hash algorithms from the SHA-2 familiy. This document obsoletes RFC
4132.
Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with the
provisions of BCP 78 and BCP 79.
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Task Force (IETF), its areas, and its working groups. Note that
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This Internet-Draft will expire on September 24, 2010.
Copyright Notice
Copyright (c) 2010 IETF Trust and the persons identified as the
document authors. All rights reserved.
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Internet-Draft Camellia Cipher Suites for TLS March 2010
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1. Introduction
This document proposes the addition of new cipher suites to the
Transport Layer Security (TLS) [RFC5246] protocol to support the
Camellia [RFC3713] encryption algorithm as a block cipher algorithm,
adding variants using the SHA-2 family of cryptographic hash
algorithms [FIPS180-3] to the TLS cipher suite portfolio originally
specified in RFC 4132 [RFC4132]. This document obsoletes RFC 4132.
The Camellia algorithm and its properties are described in [RFC3713].
1.1. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
2. Proposed Cipher Suites
The cipher suites defined here have the following identifiers:
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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 };
CipherSuite TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA = { 0x00,0x45 };
CipherSuite TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA = { 0x00,0x46 };
CipherSuite TLS_RSA_WITH_CAMELLIA_256_CBC_SHA = { 0x00,0x84 };
CipherSuite TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA = { 0x00,0x85 };
CipherSuite TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA = { 0x00,0x86 };
CipherSuite TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA = { 0x00,0x87 };
CipherSuite TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA = { 0x00,0x88 };
CipherSuite TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA = { 0x00,0x89 };
CipherSuite TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256 = { TBD,TBD };
3. Cipher Suite Definitions
3.1. Key Exchange
The RSA, DHE_RSA, DH_RSA, DHE_DSS, DH_DSS, and DH_anon key exchanges
are performed as defined in [RFC5246].
3.2. Cipher
The CAMELLIA_128_CBC cipher suites use Camellia [RFC3713] in CBC mode
with a 128-bit key and 128-bit IV; the CAMELLIA_256_CBC cipher suites
use a 256-bit key and 128-bit IV.
3.3. Hash and Pseudorandom Function
3.3.1. Hash and Pseudorandom Function for TLS 1.1
The cipher suites ending with _SHA use HMAC-SHA1 as the MAC
algorithm.
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When used with TLS versions prior to 1.2, the PRF is calculated as
specified in the appropriate version of the TLS specification.
3.3.2. Hash and Pseudorandom Function for TLS 1.2
The cipher suites ending with _SHA256 use HMAC-SHA-256 as the MAC
algorithm. The PRF is the TLS PRF [RFC5246] with SHA-256 as the hash
function. These cipher suites MUST NOT be negotiated by TLS 1.1 or
earlier versions. Clients MUST NOT offer these cipher suites if they
do not offer TLS 1.2 or later. Servers which select an earlier
version of TLS MUST NOT select one of thse cipher suites.
4. IANA Considerations
IANA has already allocated the following numbers for RFC 4132, and is
requested to update them to reference this document:
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 };
CipherSuite TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA = { 0x00,0x45 };
CipherSuite TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA = { 0x00,0x46 };
CipherSuite TLS_RSA_WITH_CAMELLIA_256_CBC_SHA = { 0x00,0x84 };
CipherSuite TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA = { 0x00,0x85 };
CipherSuite TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA = { 0x00,0x86 };
CipherSuite TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA = { 0x00,0x87 };
CipherSuite TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA = { 0x00,0x88 };
CipherSuite TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA = { 0x00,0x89 };
IANA is requested to allocate (has allocated) the following numbers
in the TLS Cipher Suite Registry:
CipherSuite TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 = { TBD,TBD };
CipherSuite TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA256 = { TBD,TBD };
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5. Security Considerations
At the time of writing this document there are no known weak keys for
Camellia. And no security problem has been found on Camellia (see
[NESSIE], [CRYPTREC], and [LNCS]).
Also, Security issues are discussed throughout RFC 5246 [RFC5246],
especially in Appendices D, E, and F of [RFC5246].
6. References
6.1. Normative References
[FIPS180-3]
National Institute of Standards and Technology, "Secure
Hash Standard (SHS)", FIPS PUB 180, October 2008, <http://
csrc.nist.gov/publications/fips/fips180-3/
fips180-3_final.pdf>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC3713] Matsui, M., Nakajima, J., and S. Moriai, "A Description of
the Camellia Encryption Algorithm", RFC 3713, April 2004.
[RFC5246] Dierks, T. and E. Rescorla, "The Transport Layer Security
(TLS) Protocol Version 1.2", RFC 5246, August 2008.
6.2. Informative References
[CRYPTREC]
Information-technology Promotion Agency (IPA),
"Cryptography Research and Evaluation Committees",
<http://www.ipa.go.jp/security/enc/CRYPTREC/index-e.html>.
[ISO/IEC 18033-3]
International Organization for Standardization,
"Information technology - Security techniques - Encryption
algorithms - Part 3: Block ciphers", ISO/IEC 18033-3,
July 2005.
[LNCS] Mala, H., Shakiba, M., and M. Dakhil-alian, "New Results
on Impossible Differential Cryptanalysis of Reduced Round
Camellia-128", November 2009,
<http://www.springerlink.com/content/e55783u422436g77/>.
[NESSIE] "The NESSIE project (New European Schemes for Signatures,
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Integrity and Encryption)",
<http://www.cosic.esat.kuleuven.ac.be/nessie/>.
[RFC4132] Moriai, S., Kato, A., and M. Kanda, "Addition of Camellia
Cipher Suites to Transport Layer Security (TLS)",
RFC 4132, July 2005.
Authors' Addresses
Akihiro Kato
NTT Software Corporation
Phone: +81-45-212-9803
Fax: +81-45-212-9800
Email: kato.akihiro@po.ntts.co.jp
Masayuki Kanda
NTT
Phone: +81-422-59-3456
Fax: +81-422-59-4015
Email: kanda.masayuki@lab.ntt.co.jp
Satoru Kanno
NTT Software Corporation
Phone: +81-45-212-9803
Fax: +81-45-212-9800
Email: kanno.satoru@po.ntts.co.jp
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