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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