draft-ietf-dnsext-rfc2539bis-dhk-06.txt

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INTERNET-DRAFT                     Diffie-Hellman Information in the DNS


   This document and the information contained herein are provided on an
   "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
   OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
   ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,
   INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
   INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
   WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.













































D. Eastlake 3rd                                                 [Page 6]


INTERNET-DRAFT                     Diffie-Hellman Information in the DNS


Normative References

   [RFC 2631] - "Diffie-Hellman Key Agreement Method", E. Rescorla, June
   1999.

   [RFC 2434] - "Guidelines for Writing an IANA Considerations Section
   in RFCs", T.  Narten, H. Alvestrand, October 1998.

   [RFC 4034] - Arends, R., Austein, R., Larson, M., Massey, D., and S.
   Rose, "Resource Records for the DNS Security Extensions", RFC 4034,
   March 2005.



Informative Refences

   [RFC 1034] - "Domain names - concepts and facilities", P.
   Mockapetris, November 1987.

   [RFC 1035] - "Domain names - implementation and specification", P.
   Mockapetris, November 1987.

   [RFC 2539] - "Storage of Diffie-Hellman Keys in the Domain Name
   System (DNS)", D. Eastlake, March 1999, obsoleted by this RFC.

   [RFC 2671] - "Extension Mechanisms for DNS (EDNS0)", P. Vixie, August
   1999.

   [RFC 4033] - Arends, R., Austein, R., Larson, M., Massey, D., and S.
   Rose, "DNS Security Introduction and Requirements", RFC 4033, March
   2005.

   [RFC 4035] - Arends, R., Austein, R., Larson, M., Massey, D., and S.
   Rose, "Protocol Modifications for the DNS Security Extensions", RFC
   4035, March 2005.

   [Schneier] - Bruce Schneier, "Applied Cryptography: Protocols,
   Algorithms, and Source Code in C" (Second Edition), 1996, John Wiley
   and Sons.













D. Eastlake 3rd                                                 [Page 7]


INTERNET-DRAFT                     Diffie-Hellman Information in the DNS


Author Address

   Donald E. Eastlake 3rd
   Motorola Laboratories
   155 Beaver Street
   Milford, MA 01757 USA

   Telephone:   [phone]
   EMail:       [e-mail]



Expiration and File Name

   This draft expires in January 2006.

   Its file name is draft-ietf-dnsext-rfc2539bis-dhk-06.txt.



































D. Eastlake 3rd                                                 [Page 8]


INTERNET-DRAFT                     Diffie-Hellman Information in the DNS


Appendix A: Well known prime/generator pairs

   These numbers are copied from the IPSEC effort where the derivation of
   these values is more fully explained and additional information is
   available.
   Richard Schroeppel performed all the mathematical and computational
   work for this appendix.



A.1. Well-Known Group 1:  A 768 bit prime

   The prime is 2^768 - 2^704 - 1 + 2^64 * { [2^638 pi] + 149686 }.  Its
   decimal value is
          155251809230070893513091813125848175563133404943451431320235
          119490296623994910210725866945387659164244291000768028886422
          915080371891804634263272761303128298374438082089019628850917
          0691316593175367469551763119843371637221007210577919

   Prime modulus: Length (32 bit words): 24, Data (hex):
            FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1
            29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD
            EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245
            E485B576 625E7EC6 F44C42E9 A63A3620 FFFFFFFF FFFFFFFF

   Generator: Length (32 bit words): 1, Data (hex): 2



A.2. Well-Known Group 2:  A 1024 bit prime

   The prime is 2^1024 - 2^960 - 1 + 2^64 * { [2^894 pi] + 129093 }.
   Its decimal value is
         179769313486231590770839156793787453197860296048756011706444
         423684197180216158519368947833795864925541502180565485980503
         646440548199239100050792877003355816639229553136239076508735
         759914822574862575007425302077447712589550957937778424442426
         617334727629299387668709205606050270810842907692932019128194
         467627007

   Prime modulus:  Length (32 bit words): 32, Data (hex):
            FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1
            29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD
            EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245
            E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED
            EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE65381
            FFFFFFFF FFFFFFFF

   Generator: Length (32 bit words): 1, Data (hex): 2



D. Eastlake 3rd                                                 [Page 9]


INTERNET-DRAFT                     Diffie-Hellman Information in the DNS


A.3. Well-Known Group 3:  A 1536 bit prime

   The prime is 2^1536 - 2^1472 - 1 + 2^64 * { [2^1406 pi] +  741804 }.
   Its decimal value is
            241031242692103258855207602219756607485695054850245994265411
            694195810883168261222889009385826134161467322714147790401219
            650364895705058263194273070680500922306273474534107340669624
            601458936165977404102716924945320037872943417032584377865919
            814376319377685986952408894019557734611984354530154704374720
            774996976375008430892633929555996888245787241299381012913029
            459299994792636526405928464720973038494721168143446471443848
            8520940127459844288859336526896320919633919

   Prime modulus Length (32 bit words): 48, Data (hex):
              FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1
              29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD
              EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245
              E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED
              EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D
              C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F
              83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D
              670C354E 4ABC9804 F1746C08 CA237327 FFFFFFFF FFFFFFFF

   Generator: Length (32 bit words):  1, Data (hex): 2




























D. Eastlake 3rd                                                [Page 10]