MSEC Working Group S. Yoon
Internet Draft J. Jeong
Intended Status: Informational H. Kim
Expires: May 23, 2010 H. Jeong
Y. Won
Korea Internet & Security Agency
November 23, 2009
IANA Registry Update for Support of the SEED Cipher Algorithm in the
Multimedia Internet KEYing (MIKEY)
draft-seokung-msec-mikey-seed-05
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Abstract
This document updates IANA registries to support the SEED block
cipher algorithm for the Secure Real-time Transport Protocol (SRTP)
and the secure Real-time Transport Control Protocol (SRTCP) in
Multimedia Internet KEYing (MIKEY).
Table of Contents
1. Introduction..................................................3
1.1. SEED.....................................................3
2. Additions to MIKEY payload....................................3
2.1. Modified Table 6.10.1.b from RFC3830.....................3
2.2. Modified Table 6.10.1.d from RFC3830.....................4
3. Security Considerations.......................................4
4. IANA Considerations...........................................4
5. Acknowledgements..............................................4
6. References....................................................5
6.1. Normative References.....................................5
6.2. Informative References...................................5
Author's Addresses...............................................6
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1. Introduction
This document updates IANA registries to support the SEED [RFC4269]
block cipher algorithm for the Secure Real-time Transport Protocol
(SRTP) and the Secure Real-time Transport Control Protocol (SRTCP)
[RFC3711] in Multimedia Internet KEYing (MIKEY) [RFC3830].
1.1. SEED
SEED is a 128-bit symmetric key block cipher that has been developed
by KISA (Korea Information Security Agency) and a group of experts
since 1998. The input/output block size of SEED is 128-bit and the
key length is also 128-bit. SEED has a 16-round Feistel structure.
SEED is a Korean National Industrial Association standard and is
widely used in South Korea for electronic commerce and various
security products such as firewall, VPN, and so on.
2. Additions to MIKEY payload
This section specifies new code points for the MIKEY [RFC3830]
payload to indicate the use of the SEED cipher algorithm for SRTP and
SRTCP. There are three applicable modes of running SEED, SEED in
Counter Mode (SEED-CTR), SEED in Counter with CBC-MAC Mode (SEED-CCM)
and SEED in Galois/Counter Mode (SEED-GCM) Mode. These are defined in
[I-D.ietf-avt-seed-srtp].
2.1. Modified Table 6.10.1.b from RFC3830
IANA is asked to amend the sub-registry derived from Table 6.10.1.b
of [RFC3830] as follows:
SRTP encr alg | Value
---------------------
NULL | 0
AES-CM | 1
AES-F8 | 2
SEED-CTR | 3 (NEW)
SEED-CCM | 4 (NEW)
SEED-GCM | 5 (NEW)
Figure 1: Table 6.10.1.b from [RFC3830] (Revised)
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2.2. Modified Table 6.10.1.d from RFC3830
IANA is asked to amend the sub-registry derived from Table 6.10.1.d
of [RFC3830] as follows:
SRTP PRF | Value
---------------------
AES-CM | 0
SEED-CTR | 1 (NEW)
Figure 2: Table 6.10.1.d from [RFC3830] (Revised)
3. Security Considerations
No security problem has been found on SEED. SEED is secure against
all known attacks including Differential cryptanalysis, linear
cryptanalysis, and related key attacks. The only known attack is an
exhaustive search for the key. For further security considerations,
the reader is encouraged to read [SEED-EVAL].
4. IANA Considerations
With the adoption of this document for publication IANA has amended
the indicated sub-registries in Section 2 of the MIKEY [RFC3830]
Payload Name registry according to Section 2.1 and 2.2 above.
5. Acknowledgements
The authors would like to thank David McGrew, Spencer Dawkins,
SangHwan Park, Brian Weis, and Tim Polk for their reviews and support.
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6. References
6.1. Normative References
[I-D.ietf-avt-seed-srtp]
S. Yoon, J. Kim, H. Park, H. Jeong, Y. Won, "The SEED
Cipher Algorithm and Its Use with the Secure Real-time
Transport Protocol (SRTP)", draft-ietf-avt-seed-srtp-14
(work in progress), June 2009.
[RFC3711] M. Baugher, D. McGrew, M. Naslund, E.Carrara, K. Norrman,
"The Secure Real-time Transport Protocol (SRTP)",
RFC 3711, March 2004.
[RFC3830] Arkko, J., Carrara, E., Lindholm, F., Naslund, M., and K.
Norrman, "MIKEY: Multimedia Internet KEYing", RFC 3830,
August 2004.
[RFC4269] H. Lee, S. Lee, J. Yoon, D. Cheon, J. Lee, "The SEED
Encryption Algorithm", RFC 4269, December 2005.
6.2. Informative References
[SEED-EVAL] KISA, "Self Evaluation Report",
http://www.kisa.or.kr/kisa/seed/down/SEED_Evaluation_Repo
rt_by_CRYPTREC.pdf
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Author's Addresses
Seokung Yoon
Korea Internet & Security Agency
IT Venture Tower, Jungdaero 135, Songpa-gu, Seoul, Korea 138-950
Email: seokung@kisa.or.kr
Jongil Jeong
Korea Internet & Security Agency
IT Venture Tower, Jungdaero 135, Songpa-gu, Seoul, Korea 138-950
Email: jijeong@kisa.or.kr
Hwankuk Kim
Korea Internet & Security Agency
IT Venture Tower, Jungdaero 135, Songpa-gu, Seoul, Korea 138-950
Email: rinyfeel@kisa.or.kr
Hyuncheol Jeong
Korea Internet & Security Agency
IT Venture Tower, Jungdaero 135, Songpa-gu, Seoul, Korea 138-950
Email: hcjung@kisa.or.kr
Yoojae Won
Korea Internet & Security Agency
IT Venture Tower, Jungdaero 135, Songpa-gu, Seoul, Korea 138-950
Email: yjwon@kisa.or.kr
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