Internet DRAFT - draft-ietf-avtcore-aria-sdes
draft-ietf-avtcore-aria-sdes
AVTCore W. Kim
Internet-Draft J. Lee
Intended status: Standards Track J. Park
Expires: May 17, 2017 D. Kwon
NSRI
D. Kim
Kookmin Univ.
November 13, 2016
The Addition of SRTP crypto suites based on the ARIA algorithms to the
SDP Security Descriptions
draft-ietf-avtcore-aria-sdes-02
Abstract
This document defines SRTP crypto suites based on the ARIA block
cipher algorithm for use with the Session Description Protocol (SDP)
security descriptions.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on May 17, 2017.
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described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. ARIA . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2. SRTP Crypto Suites . . . . . . . . . . . . . . . . . . . 2
1.3. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
2. Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 7
4. References . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1. Normative References . . . . . . . . . . . . . . . . . . 7
4.2. Informative References . . . . . . . . . . . . . . . . . 7
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 8
1. Introduction
This document defines the SDP Security Descriptions attributes
[RFC4568] corresponding to the ARIA transforms which are defined in
[I-D.ietf-avtcore-aria-srtp].
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. SRTP Crypto Suites
The transforms based on ARIA and the corresponding SRTP protection
profiles for DTLS-SRTP are defined in [I-D.ietf-avtcore-aria-srtp].
The SDP Security Descriptions [RFC4568] crypto suites corresponding
to ARIA transforms [I-D.ietf-avtcore-aria-srtp] are sets as shown in
Table 1.
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+---------------------------+-----------------+------------------+
| Name | Enc. Key Length | Auth. Tag Length |
+---------------------------+-----------------+------------------+
| ARIA_128_CTR_HMAC_SHA1_80 | 16 octets | 10 octets |
| ARIA_128_CTR_HMAC_SHA1_32 | 16 octets | 4 octets |
| ARIA_192_CTR_HMAC_SHA1_80 | 24 octets | 10 octets |
| ARIA_192_CTR_HMAC_SHA1_32 | 24 octets | 4 octets |
| ARIA_256_CTR_HMAC_SHA1_80 | 32 octets | 10 octets |
| ARIA_256_CTR_HMAC_SHA1_32 | 32 octets | 4 octets |
| AEAD_ARIA_128_GCM | 16 octets | 16 octets |
| AEAD_ARIA_256_GCM | 32 octets | 16 octets |
+---------------------------+-----------------+------------------+
Table 1: ARIA Crypto Suites for SRTP
1.3. 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. Parameters
The parameters in each crypto suite listed in Table 1 are described
for use with the SDP Security Descriptions attributes [RFC4568].
+---------------------------------+------------------+
| Parameter | Value |
+---------------------------------+------------------+
| Master key length | 128 bits |
| Master salt length | 112 bits |
| Key Derivation Function | ARIA_128_CTR_PRF |
| Default key lifetime (SRTP) | 2^48 packets |
| Default key lifetime (SRTCP) | 2^31 packets |
| Cipher (for SRTP and SRTCP) | ARIA_128_CTR |
| SRTP authentication function | HMAC-SHA1 |
| SRTP authentication key length | 160 bits |
| SRTP authentication tag length | 80 bits |
| SRTCP authentication function | HMAC-SHA1 |
| SRTCP authentication key length | 160 bits |
| SRTCP authentication tag length | 80 bits |
+---------------------------------+------------------+
Table 2: The ARIA_128_CTR_HMAC_SHA1_80 Crypto Suite
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+---------------------------------+------------------+
| Parameter | Value |
+---------------------------------+------------------+
| Master key length | 128 bits |
| Master salt length | 112 bits |
| Key Derivation Function | ARIA_128_CTR_PRF |
| Default key lifetime (SRTP) | 2^48 packets |
| Default key lifetime (SRTCP) | 2^31 packets |
| Cipher (for SRTP and SRTCP) | ARIA_128_CTR |
| SRTP authentication function | HMAC-SHA1 |
| SRTP authentication key length | 160 bits |
| SRTP authentication tag length | 32 bits |
| SRTCP authentication function | HMAC-SHA1 |
| SRTCP authentication key length | 160 bits |
| SRTCP authentication tag length | 80 bits |
+---------------------------------+------------------+
Table 3: The ARIA_128_CTR_HMAC_SHA1_32 Crypto Suite
+---------------------------------+------------------+
| Parameter | Value |
+---------------------------------+------------------+
| Master key length | 192 bits |
| Master salt length | 112 bits |
| Key Derivation Function | ARIA_192_CTR_PRF |
| Default key lifetime (SRTP) | 2^48 packets |
| Default key lifetime (SRTCP) | 2^31 packets |
| Cipher (for SRTP and SRTCP) | ARIA_192_CTR |
| SRTP authentication function | HMAC-SHA1 |
| SRTP authentication key length | 160 bits |
| SRTP authentication tag length | 80 bits |
| SRTCP authentication function | HMAC-SHA1 |
| SRTCP authentication key length | 160 bits |
| SRTCP authentication tag length | 80 bits |
+---------------------------------+------------------+
Table 4: The ARIA_192_CTR_HMAC_SHA1_80 Crypto Suite
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+---------------------------------+------------------+
| Parameter | Value |
+---------------------------------+------------------+
| Master key length | 192 bits |
| Master salt length | 112 bits |
| Key Derivation Function | ARIA_192_CTR_PRF |
| Default key lifetime (SRTP) | 2^48 packets |
| Default key lifetime (SRTCP) | 2^31 packets |
| Cipher (for SRTP and SRTCP) | ARIA_192_CTR |
| SRTP authentication function | HMAC-SHA1 |
| SRTP authentication key length | 160 bits |
| SRTP authentication tag length | 32 bits |
| SRTCP authentication function | HMAC-SHA1 |
| SRTCP authentication key length | 160 bits |
| SRTCP authentication tag length | 80 bits |
+---------------------------------+------------------+
Table 5: The ARIA_192_CTR_HMAC_SHA1_32 Crypto Suite
+---------------------------------+------------------+
| Parameter | Value |
+---------------------------------+------------------+
| Master key length | 256 bits |
| Master salt length | 112 bits |
| Key Derivation Function | ARIA_256_CTR_PRF |
| Default key lifetime (SRTP) | 2^48 packets |
| Default key lifetime (SRTCP) | 2^31 packets |
| Cipher (for SRTP and SRTCP) | ARIA_256_CTR |
| SRTP authentication function | HMAC-SHA1 |
| SRTP authentication key length | 160 bits |
| SRTP authentication tag length | 80 bits |
| SRTCP authentication function | HMAC-SHA1 |
| SRTCP authentication key length | 160 bits |
| SRTCP authentication tag length | 80 bits |
+---------------------------------+------------------+
Table 6: The ARIA_256_CTR_HMAC_SHA1_80 Crypto Suite
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+---------------------------------+------------------+
| Parameter | Value |
+---------------------------------+------------------+
| Master key length | 256 bits |
| Master salt length | 112 bits |
| Key Derivation Function | ARIA_256_CTR_PRF |
| Default key lifetime (SRTP) | 2^48 packets |
| Default key lifetime (SRTCP) | 2^31 packets |
| Cipher (for SRTP and SRTCP) | ARIA_256_CTR |
| SRTP authentication function | HMAC-SHA1 |
| SRTP authentication key length | 160 bits |
| SRTP authentication tag length | 32 bits |
| SRTCP authentication function | HMAC-SHA1 |
| SRTCP authentication key length | 160 bits |
| SRTCP authentication tag length | 80 bits |
+---------------------------------+------------------+
Table 7: The ARIA_256_CTR_HMAC_SHA1_32 Crypto Suite
+--------------------------------+-------------------+
| Parameter | Value |
+--------------------------------+-------------------+
| Master key length | 128 bits |
| Master salt length | 96 bits |
| Key Derivation Function | ARIA_128_CTR_PRF |
| Default key lifetime (SRTP) | 2^48 packets |
| Default key lifetime (SRTCP) | 2^31 packets |
| Cipher (for SRTP and SRTCP) | AEAD_ARIA_128_GCM |
| AEAD authentication tag length | 128 bits |
+--------------------------------+-------------------+
Table 8: The AEAD_ARIA_128_GCM Crypto Suite
+--------------------------------+-------------------+
| Parameter | Value |
+--------------------------------+-------------------+
| Master key length | 256 bits |
| Master salt length | 96 bits |
| Key Derivation Function | ARIA_256_CTR_PRF |
| Default key lifetime (SRTP) | 2^48 packets |
| Default key lifetime (SRTCP) | 2^31 packets |
| Cipher (for SRTP and SRTCP) | AEAD_ARIA_256_GCM |
| AEAD authentication tag length | 128 bits |
+--------------------------------+-------------------+
Table 9: The AEAD_ARIA_256_GCM Crypto Suite
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3. IANA Considerations
SDP Security Descriptions [RFC4568] defines SRTP "crypto suites". In
order to allow SDP to signal the use of the algorithms defined in
this document, IANA is requested to add the below crypto suites to
the "SRTP Crypto Suite Registrations" created by [RFC4568], at time
of writing located on the following IANA page:
http://www.iana.org/assignments/sdp-security-descriptions/ .
srtp-crypto-suite-ext = "ARIA_128_CTR_HMAC_SHA1_80"/
"ARIA_128_CTR_HMAC_SHA1_32"/
"ARIA_192_CTR_HMAC_SHA1_80"/
"ARIA_192_CTR_HMAC_SHA1_32"/
"ARIA_256_CTR_HMAC_SHA1_80"/
"ARIA_256_CTR_HMAC_SHA1_32"/
"AEAD_ARIA_128_GCM" /
"AEAD_ARIA_256_GCM" /
srtp-crypto-suite-ext
4. References
4.1. Normative References
[I-D.ietf-avtcore-aria-srtp]
Kim, W., Lee, J., Park, J., and D. Kwon, "The ARIA
Algorithm and Its Use with the Secure Real-time Transport
Protocol(SRTP)", draft-ietf-avtcore-aria-srtp-09 (work in
progress), November 2015.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<http://www.rfc-editor.org/info/rfc2119>.
[RFC4568] Andreasen, F., Baugher, M., and D. Wing, "Session
Description Protocol (SDP) Security Descriptions for Media
Streams", RFC 4568, DOI 10.17487/RFC4568, July 2006,
<http://www.rfc-editor.org/info/rfc4568>.
4.2. Informative References
[ARIAKS] Korean Agency for Technology and Standards, "128 bit block
encryption algorithm ARIA - Part 1: General (in Korean)",
KS X 1213-1:2009, December 2009.
[ARIAPKCS]
RSA Laboratories, "Additional PKCS #11 Mechanisms",
PKCS #11 v2.20 Amendment 3 Revision 1, January 2007.
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[RFC5794] Lee, J., Lee, J., Kim, J., Kwon, D., and C. Kim, "A
Description of the ARIA Encryption Algorithm", RFC 5794,
DOI 10.17487/RFC5794, March 2010,
<http://www.rfc-editor.org/info/rfc5794>.
Authors' Addresses
Woo-Hwan Kim
National Security Research Institute
P.O.Box 1, Yuseong
Daejeon 34188
Korea
EMail: whkim5@nsr.re.kr
Jungkeun Lee
National Security Research Institute
P.O.Box 1, Yuseong
Daejeon 34188
Korea
EMail: jklee@nsr.re.kr
Je Hong Park
National Security Research Institute
P.O.Box 1, Yuseong
Daejeon 34188
Korea
EMail: jhpark@nsr.re.kr
Daesung Kwon
National Security Research Institute
P.O.Box 1, Yuseong
Daejeon 34188
Korea
EMail: ds_kwon@nsr.re.kr
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Dong-Chan Kim
Kookmin University
77 Jeongneung-ro, Seongbuk-gu
Seoul 02707
Korea
EMail: dckim@kookmin.ac.kr
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