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<pre>Internet Engineering Task Force (IETF) S. Kanno
Request for Comments: 6367 NTT Software Corporation
Category: Informational M. Kanda
ISSN: 2070-1721 NTT
September 2011
<span class="h1">Addition of the Camellia Cipher Suites to</span>
<span class="h1">Transport Layer Security (TLS)</span>
Abstract
This document specifies forty-two cipher suites for the Transport
Security Layer (TLS) protocol to support the Camellia encryption
algorithm as a block cipher.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see <a href="./rfc5741#section-2">Section 2 of RFC 5741</a>.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
<a href="http://www.rfc-editor.org/info/rfc6367">http://www.rfc-editor.org/info/rfc6367</a>.
Copyright Notice
Copyright (c) 2011 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to <a href="https://www.rfc-editor.org/bcp/bcp78">BCP 78</a> and the IETF Trust's Legal
Provisions Relating to IETF Documents
(<a href="http://trustee.ietf.org/license-info">http://trustee.ietf.org/license-info</a>) in effect on the date of
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 Simplified BSD License.
<span class="grey">Kanno & Kanda Informational [Page 1]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-2" ></span>
<span class="grey"><a href="./rfc6367">RFC 6367</a> Camellia Cipher Suites for TLS September 2011</span>
Table of Contents
<a href="#section-1">1</a>. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . <a href="#page-2">2</a>
<a href="#section-1.1">1.1</a>. Terminology . . . . . . . . . . . . . . . . . . . . . . . . <a href="#page-2">2</a>
<a href="#section-2">2</a>. Proposed Cipher Suites . . . . . . . . . . . . . . . . . . . . <a href="#page-3">3</a>
<a href="#section-2.1">2.1</a>. HMAC-Based Cipher Suites . . . . . . . . . . . . . . . . . <a href="#page-3">3</a>
<a href="#section-2.2">2.2</a>. GCM-Based Cipher Suites . . . . . . . . . . . . . . . . . . <a href="#page-3">3</a>
<a href="#section-2.3">2.3</a>. PSK-Based Cipher Suites . . . . . . . . . . . . . . . . . . <a href="#page-4">4</a>
<a href="#section-3">3</a>. Cipher Suite Definitions . . . . . . . . . . . . . . . . . . . <a href="#page-4">4</a>
<a href="#section-3.1">3.1</a>. Key Exchange . . . . . . . . . . . . . . . . . . . . . . . <a href="#page-4">4</a>
<a href="#section-3.2">3.2</a>. Cipher . . . . . . . . . . . . . . . . . . . . . . . . . . <a href="#page-4">4</a>
<a href="#section-3.3">3.3</a>. PRFs . . . . . . . . . . . . . . . . . . . . . . . . . . . <a href="#page-5">5</a>
<a href="#section-3.4">3.4</a>. PSK Cipher Suites . . . . . . . . . . . . . . . . . . . . . <a href="#page-5">5</a>
<a href="#section-4">4</a>. Security Considerations . . . . . . . . . . . . . . . . . . . . <a href="#page-5">5</a>
<a href="#section-5">5</a>. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . <a href="#page-5">5</a>
<a href="#section-6">6</a>. References . . . . . . . . . . . . . . . . . . . . . . . . . . <a href="#page-6">6</a>
<a href="#section-6.1">6.1</a>. Normative References . . . . . . . . . . . . . . . . . . . <a href="#page-6">6</a>
<a href="#section-6.2">6.2</a>. Informative References . . . . . . . . . . . . . . . . . . <a href="#page-7">7</a>
<span class="h2"><a class="selflink" id="section-1" href="#section-1">1</a>. Introduction</span>
The Camellia cipher suites are already specified in <a href="./rfc5932">RFC 5932</a> [<a href="#ref-15" title=""Camellia Cipher Suites for TLS"">15</a>]
with SHA-256-based Hashed Message Authentication Code (HMAC) using
asymmetric key encryption. This document proposes the addition of
new cipher suites to the Transport Layer Security (TLS) [<a href="#ref-8" title=""The Transport Layer Security (TLS) Protocol Version 1.2"">8</a>] protocol
to support the Camellia [<a href="#ref-4" title=""A Description of the Camellia Encryption Algorithm"">4</a>] cipher algorithm as a block cipher
algorithm. The proposed cipher suites include variants using the
SHA-2 family of cryptographic hash functions [<a href="#ref-13" title=""Secure Hash Standard (SHS)"">13</a>] and Galois Counter
Mode (GCM) [<a href="#ref-14" title=""Recommendation for Block Cipher Modes of Operation: Galois/Counter Mode (GCM) for Confidentiality and Authentication"">14</a>]. Elliptic curve cipher suites and pre-shared key
(PSK) [<a href="#ref-5" title=""Pre-Shared Key Ciphersuites for Transport Layer Security (TLS)"">5</a>] cipher suites are also included.
<span class="h3"><a class="selflink" id="section-1.1" href="#section-1.1">1.1</a>. Terminology</span>
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 <a href="./rfc2119">RFC 2119</a> [<a href="#ref-3" title=""Key words for use in RFCs to Indicate Requirement Levels"">3</a>].
<span class="grey">Kanno & Kanda Informational [Page 2]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-3" ></span>
<span class="grey"><a href="./rfc6367">RFC 6367</a> Camellia Cipher Suites for TLS September 2011</span>
<span class="h2"><a class="selflink" id="section-2" href="#section-2">2</a>. Proposed Cipher Suites</span>
<span class="h3"><a class="selflink" id="section-2.1" href="#section-2.1">2.1</a>. HMAC-Based Cipher Suites</span>
The eight cipher suites use Camellia [<a href="#ref-4" title=""A Description of the Camellia Encryption Algorithm"">4</a>] in Cipher Block Chaining
(CBC) [<a href="#ref-4" title=""A Description of the Camellia Encryption Algorithm"">4</a>] mode with a SHA-2 family HMAC using the elliptic curve
cryptosystem:
CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x72};
CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x73};
CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x74};
CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x75};
CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x76};
CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x77};
CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x78};
CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x79};
<span class="h3"><a class="selflink" id="section-2.2" href="#section-2.2">2.2</a>. GCM-Based Cipher Suites</span>
The twenty cipher suites use the same asymmetric key algorithms as
those in the previous section but use the authenticated encryption
modes defined in TLS 1.2 [<a href="#ref-8" title=""The Transport Layer Security (TLS) Protocol Version 1.2"">8</a>] with Camellia in GCM [<a href="#ref-14" title=""Recommendation for Block Cipher Modes of Operation: Galois/Counter Mode (GCM) for Confidentiality and Authentication"">14</a>].
CipherSuite TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x7A};
CipherSuite TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x7B};
CipherSuite TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x7C};
CipherSuite TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x7D};
CipherSuite TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x7E};
CipherSuite TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x7F};
CipherSuite TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x80};
CipherSuite TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x81};
CipherSuite TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x82};
CipherSuite TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x83};
CipherSuite TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x84};
CipherSuite TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x85};
CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x86};
CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x87};
CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x88};
CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x89};
CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x8A};
CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x8B};
CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x8C};
CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x8D};
<span class="grey">Kanno & Kanda Informational [Page 3]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-4" ></span>
<span class="grey"><a href="./rfc6367">RFC 6367</a> Camellia Cipher Suites for TLS September 2011</span>
<span class="h3"><a class="selflink" id="section-2.3" href="#section-2.3">2.3</a>. PSK-Based Cipher Suites</span>
The fourteen cipher suites describe PSK cipher suites. The first six
cipher suites use Camellia with GCM, and the next eight cipher suites
use Camellia with SHA-2 family HMAC using asymmetric key encryption
or the elliptic curve cryptosystem.
CipherSuite TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x8D};
CipherSuite TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x8F};
CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x90};
CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x91};
CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x92};
CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x93};
CipherSuite TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x94};
CipherSuite TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x95};
CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x96};
CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x97};
CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x98};
CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x99};
CipherSuite TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x9A};
CipherSuite TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x9B};
<span class="h2"><a class="selflink" id="section-3" href="#section-3">3</a>. Cipher Suite Definitions</span>
<span class="h3"><a class="selflink" id="section-3.1" href="#section-3.1">3.1</a>. Key Exchange</span>
The RSA, DHE_RSA, DH_RSA, DHE_DSS, DH_DSS, ECDH, DH_anon, and ECDHE
key exchanges are performed as defined in <a href="./rfc5246">RFC 5246</a> [<a href="#ref-8" title=""The Transport Layer Security (TLS) Protocol Version 1.2"">8</a>].
<span class="h3"><a class="selflink" id="section-3.2" href="#section-3.2">3.2</a>. Cipher</span>
This document describes cipher suites based on Camellia cipher using
CBC mode and GCM. The details are as follows.
The CAMELLIA_128_CBC cipher suites use Camellia [<a href="#ref-4" title=""A Description of the Camellia Encryption Algorithm"">4</a>] in CBC mode with
a 128-bit key and 128-bit Initialization Vector (IV); the
CAMELLIA_256_CBC cipher suites use a 256-bit key and 128-bit IV.
Advanced Encryption Standard (AES) [<a href="#ref-19" title=""Advanced Encryption Standard (AES)"">19</a>] authenticated encryption with
additional data algorithms, AEAD_AES_128_GCM and AEAD_AES_256_GCM,
are described in <a href="./rfc5116">RFC 5116</a> [<a href="#ref-7" title=""An Interface and Algorithms for Authenticated Encryption"">7</a>]. AES GCM cipher suites for TLS are
described in <a href="./rfc5288">RFC 5288</a> [<a href="#ref-9" title=""AES Galois Counter Mode (GCM) Cipher Suites for TLS"">9</a>]. AES and Camellia share common
characteristics including key sizes and block length.
CAMELLIA_128_GCM and CAMELLIA_256_GCM are defined according to those
of AES.
<span class="grey">Kanno & Kanda Informational [Page 4]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-5" ></span>
<span class="grey"><a href="./rfc6367">RFC 6367</a> Camellia Cipher Suites for TLS September 2011</span>
<span class="h3"><a class="selflink" id="section-3.3" href="#section-3.3">3.3</a>. PRFs</span>
The hash algorithms and pseudorandom function (PRF) algorithms for
TLS 1.2 [<a href="#ref-8" title=""The Transport Layer Security (TLS) Protocol Version 1.2"">8</a>] SHALL be as follows:
a. The cipher suites ending with _SHA256 use HMAC-SHA-256 [<a href="#ref-1" title=""HMAC: Keyed-Hashing for Message Authentication"">1</a>] as the
MAC algorithm. The PRF is the TLS PRF [<a href="#ref-8" title=""The Transport Layer Security (TLS) Protocol Version 1.2"">8</a>] with SHA-256 [<a href="#ref-13" title=""Secure Hash Standard (SHS)"">13</a>] as
the hash function.
b. The cipher suites ending with _SHA384 use HMAC-SHA-384 [<a href="#ref-1" title=""HMAC: Keyed-Hashing for Message Authentication"">1</a>] as the
MAC algorithm. The PRF is the TLS PRF [<a href="#ref-8" title=""The Transport Layer Security (TLS) Protocol Version 1.2"">8</a>] with SHA-384 [<a href="#ref-13" title=""Secure Hash Standard (SHS)"">13</a>] as
the hash function.
When used with TLS versions prior to 1.2 (TLS 1.0 [<a href="#ref-2" title=""The TLS Protocol Version 1.0"">2</a>] and TLS 1.1
[<a href="#ref-6" title=""The Transport Layer Security (TLS) Protocol Version 1.1"">6</a>]), the PRF is calculated as specified in the appropriate version
of the TLS specification.
<span class="h3"><a class="selflink" id="section-3.4" href="#section-3.4">3.4</a>. PSK Cipher Suites</span>
PSK cipher suites for TLS are described in <a href="./rfc5487">RFC 5487</a> [<a href="#ref-11" title=""Pre-Shared Key Cipher Suites for TLS with SHA-256/ 384 and AES Galois Counter Mode"">11</a>] as to SHA-
256/384 and <a href="./rfc5489">RFC 5489</a> [<a href="#ref-12" title=""ECDHE_PSK Cipher Suites for Transport Layer Security (TLS)"">12</a>] as to ECDHE_PSK.
<span class="h2"><a class="selflink" id="section-4" href="#section-4">4</a>. Security Considerations</span>
At the time of writing this document, there are no known weak keys
for Camellia. Additionally, no security problems with Camellia have
been found (see NESSIE [<a href="#ref-16" title=""The NESSIE Project (New European Schemes for Signatures, Integrity and Encryption)"">16</a>], CRYPTREC [<a href="#ref-17" title=""CRYPTREC (Cryptography Research and Evaluation Committees)"">17</a>], and LNCS 5867[18]).
The security considerations in previous RFCs (<a href="./rfc5116">RFC 5116</a> [<a href="#ref-7" title=""An Interface and Algorithms for Authenticated Encryption"">7</a>], <a href="./rfc5289">RFC 5289</a>
[<a href="#ref-10" title=""TLS Elliptic Curve Cipher Suites with SHA-256/ 384 and AES Galois Counter Mode (GCM)"">10</a>], and <a href="./rfc5487">RFC 5487</a> [<a href="#ref-11" title=""Pre-Shared Key Cipher Suites for TLS with SHA-256/ 384 and AES Galois Counter Mode"">11</a>]) apply to this document as well.
<span class="h2"><a class="selflink" id="section-5" href="#section-5">5</a>. IANA Considerations</span>
IANA allocated the following numbers in the TLS Cipher Suite
Registry:
CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x72};
CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x73};
CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x74};
CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x75};
CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x76};
CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x77};
CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x78};
CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x79};
CipherSuite TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x7A};
CipherSuite TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x7B};
CipherSuite TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x7C};
CipherSuite TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x7D};
<span class="grey">Kanno & Kanda Informational [Page 5]</span></pre>
<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-6" ></span>
<span class="grey"><a href="./rfc6367">RFC 6367</a> Camellia Cipher Suites for TLS September 2011</span>
CipherSuite TLS_DH_RSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x7E};
CipherSuite TLS_DH_RSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x7F};
CipherSuite TLS_DHE_DSS_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x80};
CipherSuite TLS_DHE_DSS_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x81};
CipherSuite TLS_DH_DSS_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x82};
CipherSuite TLS_DH_DSS_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x83};
CipherSuite TLS_DH_anon_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x84};
CipherSuite TLS_DH_anon_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x85};
CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x86};
CipherSuite TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x87};
CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x88};
CipherSuite TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x89};
CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x8A};
CipherSuite TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x8B};
CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x8C};
CipherSuite TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x8D};
CipherSuite TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x8E};
CipherSuite TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x8F};
CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x90};
CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x91};
CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256 = {0xC0,0x92};
CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384 = {0xC0,0x93};
CipherSuite TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x94};
CipherSuite TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x95};
CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x96};
CipherSuite TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x97};
CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x98};
CipherSuite TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x99};
CipherSuite TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256 = {0xC0,0x9A};
CipherSuite TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384 = {0xC0,0x9B};
<span class="h2"><a class="selflink" id="section-6" href="#section-6">6</a>. References</span>
<span class="h3"><a class="selflink" id="section-6.1" href="#section-6.1">6.1</a>. Normative References</span>
[<a id="ref-1">1</a>] Krawczyk, H., Bellare, M., and R. Canetti, "HMAC: Keyed-Hashing
for Message Authentication", <a href="./rfc2104">RFC 2104</a>, February 1997.
[<a id="ref-2">2</a>] Dierks, T. and C. Allen, "The TLS Protocol Version 1.0",
<a href="./rfc2246">RFC 2246</a>, January 1999.
[<a id="ref-3">3</a>] Bradner, S., "Key words for use in RFCs to Indicate Requirement
Levels", <a href="https://www.rfc-editor.org/bcp/bcp14">BCP 14</a>, <a href="./rfc2119">RFC 2119</a>, March 1997.
[<a id="ref-4">4</a>] Matsui, M., Nakajima, J., and S. Moriai, "A Description of the
Camellia Encryption Algorithm", <a href="./rfc3713">RFC 3713</a>, April 2004.
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<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-7" ></span>
<span class="grey"><a href="./rfc6367">RFC 6367</a> Camellia Cipher Suites for TLS September 2011</span>
[<a id="ref-5">5</a>] Eronen, P. and H. Tschofenig, "Pre-Shared Key Ciphersuites for
Transport Layer Security (TLS)", <a href="./rfc4279">RFC 4279</a>, December 2005.
[<a id="ref-6">6</a>] Dierks, T. and E. Rescorla, "The Transport Layer Security (TLS)
Protocol Version 1.1", <a href="./rfc4346">RFC 4346</a>, April 2006.
[<a id="ref-7">7</a>] McGrew, D., "An Interface and Algorithms for Authenticated
Encryption", <a href="./rfc5116">RFC 5116</a>, January 2008.
[<a id="ref-8">8</a>] Dierks, T. and E. Rescorla, "The Transport Layer Security (TLS)
Protocol Version 1.2", <a href="./rfc5246">RFC 5246</a>, August 2008.
[<a id="ref-9">9</a>] Salowey, J., Choudhury, A., and D. McGrew, "AES Galois Counter
Mode (GCM) Cipher Suites for TLS", <a href="./rfc5288">RFC 5288</a>, August 2008.
[<a id="ref-10">10</a>] Rescorla, E., "TLS Elliptic Curve Cipher Suites with SHA-256/
384 and AES Galois Counter Mode (GCM)", <a href="./rfc5289">RFC 5289</a>, August 2008.
[<a id="ref-11">11</a>] Badra, M., "Pre-Shared Key Cipher Suites for TLS with SHA-256/
384 and AES Galois Counter Mode", <a href="./rfc5487">RFC 5487</a>, March 2009.
[<a id="ref-12">12</a>] Badra, M. and I. Hajjeh, "ECDHE_PSK Cipher Suites for Transport
Layer Security (TLS)", <a href="./rfc5489">RFC 5489</a>, March 2009.
[<a id="ref-13">13</a>] National Institute of Standards and Technology, "Secure Hash
Standard (SHS)", FIPS PUB 180, October 2008,
<<a href="http://csrc.nist.gov/publications/fips/fips180-3/fips180-3_final.pdf">http://csrc.nist.gov/publications/fips/fips180-3/</a>
<a href="http://csrc.nist.gov/publications/fips/fips180-3/fips180-3_final.pdf">fips180-3_final.pdf</a>>.
[<a id="ref-14">14</a>] Dworkin, M., "Recommendation for Block Cipher Modes of
Operation: Galois/Counter Mode (GCM) for Confidentiality and
Authentication", Special Publication 800-38D, April 2006,
<<a href="http://csrc.nist.gov/publications/nistpubs/800-38D/SP-800-38D.pdf">http://csrc.nist.gov/publications/nistpubs/800-38D/</a>
<a href="http://csrc.nist.gov/publications/nistpubs/800-38D/SP-800-38D.pdf">SP-800-38D.pdf</a>>.
<span class="h3"><a class="selflink" id="section-6.2" href="#section-6.2">6.2</a>. Informative References</span>
[<a id="ref-15">15</a>] Kato, A., Kanda, M., and S. Kanno, "Camellia Cipher Suites for
TLS", <a href="./rfc5932">RFC 5932</a>, June 2010.
[<a id="ref-16">16</a>] "The NESSIE Project (New European Schemes for Signatures,
Integrity and Encryption)",
<<a href="http://www.cosic.esat.kuleuven.be/nessie/">http://www.cosic.esat.kuleuven.be/nessie/</a>>.
[<a id="ref-17">17</a>] "CRYPTREC (Cryptography Research and Evaluation Committees)",
<<a href="http://www.cryptrec.go.jp/english/estimation.html">http://www.cryptrec.go.jp/english/estimation.html</a>>.
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<hr class='noprint'/><!--NewPage--><pre class='newpage'><span id="page-8" ></span>
<span class="grey"><a href="./rfc6367">RFC 6367</a> Camellia Cipher Suites for TLS September 2011</span>
[<a id="ref-18">18</a>] Mala, H., Shakiba, M., Dakhilalian, M., and G. Bagherikaram,
"New Results on Impossible Differential Cryptanalysis of
Reduced Round Camellia-128", LNCS 5867, November 2009,
<<a href="http://www.springerlink.com/content/e55783u422436g77/">http://www.springerlink.com/content/e55783u422436g77/</a>>.
[<a id="ref-19">19</a>] National Institute of Standards and Technology, "Advanced
Encryption Standard (AES)", FIPS PUB 197, November 2001,
<<a href="http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf">http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf</a>>.
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 Informational [Page 8]
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