Addition of the ARIA Cipher Suites to Transport Layer Security (TLS)
draft-nsri-tls-aria-01

Network Working Group                                          W. Kim
Internet Draft                                                 J. Lee
Intended status: Informational                                J. Park
Expires: May 30, 2011                                         D. Kwon
                                                                 NSRI
                                                     December 1, 2010

 Addition of the ARIA Cipher Suites to Transport Layer Security (TLS)
                     draft-nsri-tls-aria-01.txt

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Abstract

   This document specifies a set of cipher suites for the Transport
   Security Layer (TLS) protocol to support the ARIA encryption
   algorithm as a block cipher.

1. Introduction

   This document proposes the addition of new cipher suites to the
   Transport Layer Security (TLS) [RFC5246] protocol to support the
   ARIA [RFC5794] encryption algorithm as a block cipher algorithm. The
   proposed cipher suites include variants using SHA-2 family of
   cryptographic hash functions and ARIA Galois counter mode. Elliptic
   curve cipher suites and pre-shared key (PSK) cipher suites are also
   included.

   The cipher suites with SHA-1 are not included in this document. Due
   to recent analytic work on SHA-1 [Wang05], the IETF is gradually
   moving away from SHA-1 and towards stronger hash algorithms.

1.1. ARIA

   ARIA is a general-purpose block cipher algorithm developed by Korean
   cryptographers in 2003. It is an iterated block cipher with 128-,
   192-, and 256-bit keys and encrypts 128-bit blocks in 12, 14, and 16
   rounds, depending on the key size. It is secure and suitable for
   most software and hardware implementations on 32-bit and 8-bit
   processors. It was established as a Korean standard block cipher
   algorithm in 2004 [ARIAKS] and has been widely used in Korea,
   especially for government-to-public services. It was included in
   PKCS #11 in 2007 [ARIAPKCS]. The algorithm specification and object
   identifiers are described in [RFC5794].

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].

2. Proposed Cipher Suites

2.1. HMAC-based Cipher Suites

   The first twenty cipher suites use ARIA [RFC5794] in Cipher Block
   Chaining (CBC) mode with an HMAC-based MAC. Eight out of twenty use
   elliptic curves.

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   CipherSuite TLS_RSA_WITH_ARIA_128_CBC_SHA256         = { TBD,TBD };
   CipherSuite TLS_RSA_WITH_ARIA_256_CBC_SHA384         = { TBD,TBD };
   CipherSuite TLS_DH_DSS_WITH_ARIA_128_CBC_SHA256      = { TBD,TBD };
   CipherSuite TLS_DH_DSS_WITH_ARIA_256_CBC_SHA384      = { TBD,TBD };
   CipherSuite TLS_DH_RSA_WITH_ARIA_128_CBC_SHA256      = { TBD,TBD };
   CipherSuite TLS_DH_RSA_WITH_ARIA_256_CBC_SHA384      = { TBD,TBD };
   CipherSuite TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256     = { TBD,TBD };
   CipherSuite TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384     = { TBD,TBD };
   CipherSuite TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256     = { TBD,TBD };
   CipherSuite TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384     = { TBD,TBD };
   CipherSuite TLS_DH_anon_WITH_ARIA_128_CBC_SHA256     = { TBD,TBD };
   CipherSuite TLS_DH_anon_WITH_ARIA_256_CBC_SHA384     = { TBD,TBD };

   CipherSuite TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256 = { TBD,TBD };
   CipherSuite TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384 = { TBD,TBD };
   CipherSuite TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256  = { TBD,TBD };
   CipherSuite TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384  = { TBD,TBD };
   CipherSuite TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256   = { TBD,TBD };
   CipherSuite TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384   = { TBD,TBD };
   CipherSuite TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256    = { TBD,TBD };
   CipherSuite TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384    = { TBD,TBD };

2.2. Galois Counter Mode-based Cipher Suites

   The next twenty cipher suites use the same asymmetric algorithms as
   those in the previous section but use the authenticated encryption
   modes defined in TLS 1.2 with the ARIA in Galois Counter Mode (GCM)
   [GCM].

   CipherSuite TLS_RSA_WITH_ARIA_128_GCM_SHA256         = { TBD,TBD };
   CipherSuite TLS_RSA_WITH_ARIA_256_GCM_SHA384         = { TBD,TBD };
   CipherSuite TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256     = { TBD,TBD };
   CipherSuite TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384     = { TBD,TBD };
   CipherSuite TLS_DH_RSA_WITH_ARIA_128_GCM_SHA256      = { TBD,TBD };
   CipherSuite TLS_DH_RSA_WITH_ARIA_256_GCM_SHA384      = { TBD,TBD };
   CipherSuite TLS_DHE_DSS_WITH_ARIA_128_GCM_SHA256     = { TBD,TBD };
   CipherSuite TLS_DHE_DSS_WITH_ARIA_256_GCM_SHA384     = { TBD,TBD };
   CipherSuite TLS_DH_DSS_WITH_ARIA_128_GCM_SHA256      = { TBD,TBD };
   CipherSuite TLS_DH_DSS_WITH_ARIA_256_GCM_SHA384      = { TBD,TBD };
   CipherSuite TLS_DH_anon_WITH_ARIA_128_GCM_SHA256     = { TBD,TBD };
   CipherSuite TLS_DH_anon_WITH_ARIA_256_GCM_SHA384     = { TBD,TBD };

   CipherSuite TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256 = { TBD,TBD };
   CipherSuite TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384 = { TBD,TBD };
   CipherSuite TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256  = { TBD,TBD };
   CipherSuite TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384  = { TBD,TBD };
   CipherSuite TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256   = { TBD,TBD };

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   CipherSuite TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384   = { TBD,TBD };
   CipherSuite TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256    = { TBD,TBD };
   CipherSuite TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384    = { TBD,TBD };

2.3. Pre-shared key (PSK) Cipher Suites

   The next twelve cipher suites describe pre-shared key cipher suites.
   The first six cipher suites use HMAC-based MAC and the next six
   cipher suites use the ARIA Galois Counter Mode.

   CipherSuite TLS_PSK_WITH_ARIA_128_CBC_SHA256         = { TBD,TBD };
   CipherSuite TLS_PSK_WITH_ARIA_256_CBC_SHA384         = { TBD,TBD };
   CipherSuite TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256     = { TBD,TBD };
   CipherSuite TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384     = { TBD,TBD };
   CipherSuite TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256     = { TBD,TBD };
   CipherSuite TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384     = { TBD,TBD };
   CipherSuite TLS_PSK_WITH_ARIA_128_GCM_SHA256         = { TBD,TBD };
   CipherSuite TLS_PSK_WITH_ARIA_256_GCM_SHA384         = { TBD,TBD };
   CipherSuite TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256     = { TBD,TBD };
   CipherSuite TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384     = { TBD,TBD };
   CipherSuite TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256     = { TBD,TBD };
   CipherSuite TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384     = { TBD,TBD };

3. Cipher Suite Definitions

3.1. Key Exchange

   The RSA, DHE_RSA, DH_RSA, DHE_DSS, DH_DSS, DH_anon, ECDH and ECDHE
   key exchanges are performed as defined in [RFC5246].

3.2. Cipher

   The ARIA_128_CBC cipher suites use ARIA [RFC5794] in CBC mode with a
   128-bit key and 128-bit IV; the ARIA_256_CBC cipher suites use a
   256-bit key and 128-bit IV.

   AES authenticated encryption with additional data algorithms,
   AEAD_AES_128_GCM and AEAD_AES_256_GCM are described in [RFC5116].
   And AES GCM cipher suites for TLS are described in [RFC5288]. AES
   and ARIA share common characteristics including key sizes and block
   length. ARIA_128_GCM and ARIA_256_GCM are defined according as those
   of AES.

3.3. PRFs

   The PRFs SHALL be as follows:

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   a. For cipher suites ending with _SHA256, the PRF is the TLS
   PRF[RFC5246] using SHA-256 as the hash function.

   b. For cipher suites ending with _SHA384, the PRF is the TLS PRF
   [RFC5246] using SHA-384 as the hash function.

3.4. Pre-shared key (PSK) cipher suites

   Pre-shared key cipher suites for TLS are described in [RFC4279],
   [RFC4785], [RFC5487] and [RFC5489].

4. Security Considerations

   At the time of writing this document no security problem has been
   found on ARIA (see [YWL]).

   The security considerations in previous RFCs [RFC3711, RFC4279,
   RFC4785, RFC5116, RFC5288, RFC5289, RFC5487] and [GCM] apply to this
   document as well.

5. IANA Considerations

   IANA is requested to allocate the following numbers in the TLS
   Cipher Suite Registry:

   CipherSuite TLS_RSA_WITH_ARIA_128_CBC_SHA256         = { TBD,TBD };
   CipherSuite TLS_RSA_WITH_ARIA_256_CBC_SHA384         = { TBD,TBD };
   CipherSuite TLS_DH_DSS_WITH_ARIA_128_CBC_SHA256      = { TBD,TBD };
   CipherSuite TLS_DH_DSS_WITH_ARIA_256_CBC_SHA384      = { TBD,TBD };
   CipherSuite TLS_DH_RSA_WITH_ARIA_128_CBC_SHA256      = { TBD,TBD };
   CipherSuite TLS_DH_RSA_WITH_ARIA_256_CBC_SHA384      = { TBD,TBD };
   CipherSuite TLS_DHE_DSS_WITH_ARIA_128_CBC_SHA256     = { TBD,TBD };
   CipherSuite TLS_DHE_DSS_WITH_ARIA_256_CBC_SHA384     = { TBD,TBD };
   CipherSuite TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256     = { TBD,TBD };
   CipherSuite TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384     = { TBD,TBD };
   CipherSuite TLS_DH_anon_WITH_ARIA_128_CBC_SHA256     = { TBD,TBD };
   CipherSuite TLS_DH_anon_WITH_ARIA_256_CBC_SHA384     = { TBD,TBD };

   CipherSuite TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256 = { TBD,TBD };
   CipherSuite TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384 = { TBD,TBD };
   CipherSuite TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256  = { TBD,TBD };
   CipherSuite TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384  = { TBD,TBD };
   CipherSuite TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256   = { TBD,TBD };
   CipherSuite TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384   = { TBD,TBD };
   CipherSuite TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256    = { TBD,TBD };
   CipherSuite TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384    = { TBD,TBD };

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   CipherSuite TLS_RSA_WITH_ARIA_128_GCM_SHA256         = { TBD,TBD };
   CipherSuite TLS_RSA_WITH_ARIA_256_GCM_SHA384         = { TBD,TBD };
   CipherSuite TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256     = { TBD,TBD };
   CipherSuite TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384     = { TBD,TBD };
   CipherSuite TLS_DH_RSA_WITH_ARIA_128_GCM_SHA256      = { TBD,TBD };
   CipherSuite TLS_DH_RSA_WITH_ARIA_256_GCM_SHA384      = { TBD,TBD };
   CipherSuite TLS_DHE_DSS_WITH_ARIA_128_GCM_SHA256     = { TBD,TBD };
   CipherSuite TLS_DHE_DSS_WITH_ARIA_256_GCM_SHA384     = { TBD,TBD };
   CipherSuite TLS_DH_DSS_WITH_ARIA_128_GCM_SHA256      = { TBD,TBD };
   CipherSuite TLS_DH_DSS_WITH_ARIA_256_GCM_SHA384      = { TBD,TBD };
   CipherSuite TLS_DH_anon_WITH_ARIA_128_GCM_SHA256     = { TBD,TBD };
   CipherSuite TLS_DH_anon_WITH_ARIA_256_GCM_SHA384     = { TBD,TBD };

   CipherSuite TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256 = { TBD,TBD };
   CipherSuite TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384 = { TBD,TBD };
   CipherSuite TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256  = { TBD,TBD };
   CipherSuite TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384  = { TBD,TBD };
   CipherSuite TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256   = { TBD,TBD };
   CipherSuite TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384   = { TBD,TBD };
   CipherSuite TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256    = { TBD,TBD };
   CipherSuite TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384    = { TBD,TBD };

   CipherSuite TLS_PSK_WITH_ARIA_128_CBC_SHA256         = { TBD,TBD };
   CipherSuite TLS_PSK_WITH_ARIA_256_CBC_SHA384         = { TBD,TBD };
   CipherSuite TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256     = { TBD,TBD };
   CipherSuite TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384     = { TBD,TBD };
   CipherSuite TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256     = { TBD,TBD };
   CipherSuite TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384     = { TBD,TBD };
   CipherSuite TLS_PSK_WITH_ARIA_128_GCM_SHA256         = { TBD,TBD };
   CipherSuite TLS_PSK_WITH_ARIA_256_GCM_SHA384         = { TBD,TBD };
   CipherSuite TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256     = { TBD,TBD };
   CipherSuite TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384     = { TBD,TBD };
   CipherSuite TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256     = { TBD,TBD };
   CipherSuite TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384     = { TBD,TBD };

6. References

6.1. Normative References

  [GCM]       Dworkin, M., "Recommendation for Block Cipher Modes of
               Operation: Galois/Counter Mode (GCM) and GMAC", National
               Institute of Standards and Technology SP 800-38D,
               November 2007.

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  [RFC2119]   Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

  [RFC4279]   Eronen, P. and H. Tschofenig, "Pre-Shared Key
              Ciphersuites for Transport Layer Security (TLS)", RFC
              4279, December 2005.

  [RFC4785]   Blumenthal, U. and P. Goel, "Pre-Shared Key (PSK)
              Ciphersuites with NULL Encryption for Transport Layer
              Security (TLS)", RFC 4785, January 2007.

  [RFC5116]   McGrew, D., "An Interface and Algorithms for
              Authenticated Encryption", RFC 5116, January 2008.

  [RFC5246]   Dierks, T. and E. Rescorla, "The Transport Layer
              Security (TLS) Protocol Version 1.2", RFC 5246, August
              2008.

  [RFC5288]   Salowey, J., Choudhury, A., and D. McGrew, "AES-GCM
              Cipher Suites for TLS", RFC 5288, August 2008.

  [RFC5289]   Rescorla, E., TLS Elliptic Curve Cipher Suites with SHA-
              256/384 and AES Galois Counter Mode (GCM), August 2008.

  [RFC5487]   Badra, M., "Pre-Shared Key Cipher Suites for TLS with
              SHA-256/384 and AES Galois Counter Mode", RFC 5487,
              March 2009.

  [RFC5489]   Barda, M. and Hajjeh, I., ECDHE_PSK Cipher Suites for
              Transport Layer Security (TLS), RFC 5489, March 2009.

  [RFC5794]   Lee, J., Lee, J., Kim, J., Kwon, D. and Kim, C., "A
              Description of the ARIA Encryption Algorithm", RFC 5794,
              March 2010.

6.2. Informative References

   [YWL]      Li, Y., Wu, W. and Zhang, L., "Integral attacks on
              reduced-round ARIA block cipher", ISPEC 2010, LNCS,
              vol.6047, pp.19-29, 2010.

   [ARIAKS]   Korean Agency for Technology and Standards (KATS), "128
              bit block encryption algorithm ARIA - Part 1: General",
              KS X 1213-1:2009, December 2009 (In Korean).

   [ARIAPKCS] RSA Laboratories, PKCS #11 v2.20 Amendment 3 Revision 1:
              Additional PKCS #11 Mechanisms, January 2007.

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   [Wang05]   Wang, X., Yin, Y., and H. Yu, "Finding Collisions in the
              Full SHA-1", CRYPTO 2005, August 2005.

Authors' Addresses

   Woo-Hwan Kim
   National Security Research Institute
   P.O.Box 1, Yuseong, Daejeon, 305-350, Korea
   Email: whkim5@ensec.re.kr

   Jungkeun Lee
   National Security Research Institute
   P.O.Box 1, Yuseong, Daejeon, 305-350, Korea
   Email: jklee@ensec.re.kr

   Je-Hong Park
   National Security Research Institute
   P.O.Box 1, Yuseong, Daejeon, 305-350, Korea
   Email: jhpark@ensec.re.kr

   Daesung Kwon
   National Security Research Institute
   P.O.Box 1, Yuseong, Daejeon, 305-350, Korea
   Email: ds_kwon@ensec.re.kr

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