Network Working Group S. Kanno Internet-Draft NTT Software Corporation Intended status: Informational M. Kanda Expires:October 7, 2009 Nippon Telegraph and Telephone Corporation April 5, 2009July 31, 2010 NTT January 27, 2010 Addition of Camellia Elliptic Curve Cipher Suites with SHA-1 and SHA-2draft-kanno-tls-camellia-ecc-sha-00draft-kanno-tls-camellia-ecc-sha-01 Abstract This document specifies a set of elliptic curve cipher suites for the Transport Security Layer (TLS) protocol to support the Camellia encryption algorithm as a block cipher. This document describes sixteen new cipher suites for TLS that specify HMAC-SHA1 and HMAC- SHA2. 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. 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Please review these documents carefully, as they describe your rights and restrictions with respect to this document.Abstract ThisCode Components extracted from this documentspecifies a setmust include Simplified BSD License text as described in Section 4.e ofelliptic curve cipher suites fortheTransport Security Layer (TLS) protocol to support the Camellia encryption algorithm as a block cipher. This document describes sixteen new cipher suites for TLS that specify HMAC-SHA1Trust Legal Provisions andHMAC- SHA2.are provided without warranty as described in the BSD License. 1. Introduction This document specifies a set of elliptic curve cipher suites for the Transport Security Layer (TLS) protocol to support the Camellia encryption algorithm as a block cipher. This document describes sixteen new cipher suites for TLS that specify HMAC-SHA1 and HMAC- SHA2. The Camellia algorithmspecificationandobject identifiersits 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. Cipher Suites This document defines sixteen new cipher suites to be added to TLS. All use Elliptic Curve Cryptography for key exchange and digital signature, as defined in [RFC4492]. The sixteen cipher suites use Camellia [RFC3713] in Cipher Block Chaining (CBC) mode with HMAC-based MAC. The cipher suites defined here have the following identifiers: CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 = {TBD,TBD}; CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 = {TBD,TBD}; CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 = {TBD,TBD}; CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 = {TBD,TBD}; CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 = {TBD,TBD}; CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 = {TBD,TBD}; CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 = {TBD,TBD}; CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 = {TBD,TBD}; 3. IANA Considerations IANA is requested to allocate the following numbers in the TLS Cipher Suite Registry: CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA = {TBD,TBD} CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 = {TBD,TBD}; CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 = {TBD,TBD}; CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 = {TBD,TBD}; CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 = {TBD,TBD}; CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 = {TBD,TBD}; CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 = {TBD,TBD}; CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 = {TBD,TBD}; CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 = {TBD,TBD}; 4. Security Considerations At the time of writing of thisdocument,document there are no known weak keys forCamellia.Camellia and no security problems have been found with Camellia (see [NESSIE], [CRYPTREC], and [Research]). The security considerations in RFC 5289 [RFC5289] apply to this document as well. 5. References 5.1. Normative References [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. [RFC4492] Blake-Wilson, S., Bolyard, N., Gupta, V., Hawk, C., and B. Moeller, "Elliptic Curve Cryptography (ECC) Cipher Suites for Transport Layer Security (TLS)", RFC 4492, May 2006. [RFC5289] Rescorla, E., "TLS Elliptic Curve Cipher Suites with SHA- 256/384 and AES Galois Counter Mode (GCM)", RFC 5289, August 2008. 5.2. Informative [CRYPTREC] Information-technology Promotion Agency (IPA), "Cryptography Research and Evaluation Committees", <http://www.ipa.go.jp/security/enc/CRYPTREC/index-e.html>. [NESSIE] "The NESSIE project (New European Schemes for Signatures, Integrity and Encryption)", <http://www.cosic.esat.kuleuven.ac.be/nessie/>. [Research] 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/>. Authors' Addresses Satoru Kanno NTT Software Corporation Phone:+81-45-212-7577+81-45-212-9803 Fax: +81-45-212-9800 Email:kanno-s@po.ntts.co.jpkanno.satoru@po.ntts.co.jp Masayuki KandaNippon Telegraph and Telephone CorporationNTT Phone: +81-422-59-3456 Fax: +81-422-59-4015 Email: kanda.masayuki@lab.ntt.co.jp