Network Working Group S. Kanno Internet-Draft NTT Software Corporation Intended status: Standards Track M. Kanda Expires: July 28, 2010 NTT January 24, 2010 Pre-Shared Key Cipher Suites for Camellia for TLS draft-kanno-tls-camellia-psk-00 Abstract This document specifies new Camellia cipher suites for the Transport Layer Security (TLS) protocol to support authentication based on Pre- Shared Key (PSK). This document realizes compatibility with RFC4297, RFC5487, and RFC5489 specified in AES cipher suites. Status of this Memo This Internet-Draft is submitted to IETF in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on July 28, 2010. Copyright Notice Copyright (c) 2010 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 Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of Kanno & Kanda Expires July 28, 2010 [Page 1] Internet-Draft PSK Camellia Cipher Suites for TLS January 2010 publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1. Applicability Statement . . . . . . . . . . . . . . . . . 3 1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3 2. Key Exchange Algorithms . . . . . . . . . . . . . . . . . . . 4 3. PSK, DHE_PSK, and RSA_PSK with SHA-1/256/384 . . . . . . . . . 5 4. ECDHE_PSK with SHA-1/256/384 . . . . . . . . . . . . . . . . . 6 5. PSK, DHE_PSK, and RSA_PSK with the Camellia-GCM . . . . . . . 7 6. Security Considerations . . . . . . . . . . . . . . . . . . . 8 7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9 8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 10 9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 11 9.1. Normative References . . . . . . . . . . . . . . . . . . . 11 9.2. Informative References . . . . . . . . . . . . . . . . . . 11 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 12 Kanno & Kanda Expires July 28, 2010 [Page 2] Internet-Draft PSK Camellia Cipher Suites for TLS January 2010 1. Introduction This document specifies new Camellia cipher suites for the Transport Layer Security (TLS) protocol to support authentication based on Pre- Shared Key (PSK). These PSK is symmetric key, shared in advance among the communicating parties. This document realizes a compatibility with RFC4297 [3], RFC5487 [5], and RFC5489 [4] specified in AES cipher suites. The Camellia algorithm and its properties are described in [2]. 1.1. Applicability Statement The cipher suites defined in this document can be negotiated, whatever the negotiated TLS version is. The cipher suites defined in Section 3 and 4 for SHA-256/384 can be negotiated in TLS version 1.2 or higher. The applicability statement in RFC4297 [3] applies to this document as well. 1.2. 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 [1]. Kanno & Kanda Expires July 28, 2010 [Page 3] Internet-Draft PSK Camellia Cipher Suites for TLS January 2010 2. Key Exchange Algorithms The Key Exchange Algorithms for the camellia cipher are defined in Section 2 of RFC4297 [3] as well. Kanno & Kanda Expires July 28, 2010 [Page 4] Internet-Draft PSK Camellia Cipher Suites for TLS January 2010 3. PSK, DHE_PSK, and RSA_PSK with SHA-1/256/384 The PSK, DHE_PSK, and RSA_PSK with SHA-1/256/384 for the camellia cipher are defined in Section 3 and 4 of RFC4297 [3] and Section 3 of RFC5487 [5] as well. The following twelve cipher suties are defined for PSK, DHE_PSK, and RSA_PSK with SHA-1/256/384. CipherSuite TLS_PSK_WITH_CAMELLIA_128_CBC_SHA = { TBD,TBD }; CipherSuite TLS_PSK_WITH_CAMELLIA_256_CBC_SHA = { TBD,TBD }; CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA = { TBD,TBD }; CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA = { TBD,TBD }; CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA = { TBD,TBD }; CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA = { TBD,TBD }; CipherSuite TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD }; CipherSuite TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 = { TBD,TBD }; CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD }; CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 = { TBD,TBD }; CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD }; CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 = { TBD,TBD }; Kanno & Kanda Expires July 28, 2010 [Page 5] Internet-Draft PSK Camellia Cipher Suites for TLS January 2010 4. ECDHE_PSK with SHA-1/256/384 The ECDHE_PSK with SHA-1/256/384 for the camellia cipher are defined in Section 3 of RFC5489 [4] as well. The following twelve cipher suties are defined for ECDHE_PSK with SHA-1/256/384. CipherSuite TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA = { TBD,TBD }; CipherSuite TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA = { TBD,TBD }; CipherSuite TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD }; CipherSuite TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 = { TBD,TBD }; Kanno & Kanda Expires July 28, 2010 [Page 6] Internet-Draft PSK Camellia Cipher Suites for TLS January 2010 5. PSK, DHE_PSK, and RSA_PSK with the Camellia-GCM The PSK, DHE_PSK, and RSA_PSK with the Camellia-GCM are defined in Section 2 of RFC5487 [5] as well. Also, GCM mode is defined in SP 800-38D [5] and Camellia-GCM is defined in XXX [5] The following twelve cipher suties are defined for PSK, DHE_PSK, and RSA_PSK with the Camellia-GCM. CipherSuite TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 = { TBD,TBD }; CipherSuite TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 = { TBD,TBD }; CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 = { TBD,TBD }; CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 = { TBD,TBD }; CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 = { TBD,TBD }; CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 = { TBD,TBD }; Kanno & Kanda Expires July 28, 2010 [Page 7] Internet-Draft PSK Camellia Cipher Suites for TLS January 2010 6. Security Considerations For security considerations of PSK for TLS, this document refers to Section 7 of RFC4297 [3], Section 4 of RFC5487 [5], and Section 5 of RFC5489 [4]. 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 [6], [7], and [8]). Kanno & Kanda Expires July 28, 2010 [Page 8] Internet-Draft PSK Camellia Cipher Suites for TLS January 2010 7. IANA Considerations IANA is requested to allocate (has allocated) the following numbers in the TLS Cipher Suite Registry: CipherSuite TLS_PSK_WITH_CAMELLIA_128_CBC_SHA = { TBD,TBD }; CipherSuite TLS_PSK_WITH_CAMELLIA_256_CBC_SHA = { TBD,TBD }; CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA = { TBD,TBD }; CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA = { TBD,TBD }; CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA = { TBD,TBD }; CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA = { TBD,TBD }; CipherSuite TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 = { TBD,TBD }; CipherSuite TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 = { TBD,TBD }; CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 = { TBD,TBD }; CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 = { TBD,TBD }; CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 = { TBD,TBD }; CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 = { TBD,TBD }; CipherSuite TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD }; CipherSuite TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 = { TBD,TBD }; CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD }; CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 = { TBD,TBD }; CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD }; CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 = { TBD,TBD }; CipherSuite TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA = { TBD,TBD }; CipherSuite TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA = { TBD,TBD }; CipherSuite TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 = { TBD,TBD }; CipherSuite TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 = { TBD,TBD }; Kanno & Kanda Expires July 28, 2010 [Page 9] Internet-Draft PSK Camellia Cipher Suites for TLS January 2010 8. Acknowledgements This document unabashedly referred to RFC4297 [3], RFC5487 [5], and RFC5489 [4]. Kanno & Kanda Expires July 28, 2010 [Page 10] Internet-Draft PSK Camellia Cipher Suites for TLS January 2010 9. References 9.1. Normative References [1] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [2] Matsui, M., Nakajima, J., and S. Moriai, "A Description of the Camellia Encryption Algorithm", RFC 3713, April 2004. [3] Eronen, P. and H. Tschofenig, "Pre-Shared Key Ciphersuites for Transport Layer Security (TLS)", RFC 4279, December 2005. [4] Badra, M. and I. Hajjeh, "ECDHE_PSK Cipher Suites for Transport Layer Security (TLS)", RFC 5489, March 2009. [5] Badra, M., "Pre-Shared Key Cipher Suites for TLS with SHA-256/ 384 and AES Galois Counter Mode", RFC 5487, March 2009. 9.2. Informative References [6] "The NESSIE project (New European Schemes for Signatures, Integrity and Encryption)", . [7] Information-technology Promotion Agency (IPA), "Cryptography Research and Evaluation Committees", . [8] Mala, H., Shakiba, M., and M. Dakhil-alian, "New Results on Impossible Differential Cryptanalysis of Reduced Round Camellia- 128", November 2009, . Kanno & Kanda Expires July 28, 2010 [Page 11] Internet-Draft PSK Camellia Cipher Suites for TLS January 2010 Authors' Addresses Satoru Kanno NTT Software Corporation Phone: +81-45-212-9803 Fax: +81-45-212-9800 Email: kanno.satoru@po.ntts.co.jp Masayuki Kanda NTT Phone: +81-422-59-3456 Fax: +81-422-59-4015 Email: kanda.masayuki@lab.ntt.co.jp Kanno & Kanda Expires July 28, 2010 [Page 12]