Title

  Test IKEv2.EN.R.1.2.6.5: Receiving Multiple Transform
  Part C: Multiple Extended Sequecnce Numbers (BASIC)


Purpose

  To verify an IKEv2 device properly handles a CREATE_CHILD_SA request with multiple
  transform to rekey IKE_SA.


References

  * [RFC 4306] - Sections 2.7, 2.8 and 3.3


Test Setup

  * Network Topology
      Connect the devices according to the Common Topology.
  * Configuration
      In each part, configure the devices according to the Common Configuration.
  * Pre-Sequence and Cleanup Sequence
      IKEv2 on the NUT is disabled after each part.


Procedure

   NUT                  TN1
(End-Node)           (End-Node)
    |                    |
    |<-------------------| IKE_SA_INIT request (HDR, SAi1, KEi, Ni)
    |                    | (Packet #1)
    |------------------->| IKE_SA_INIT response (HDR, SAr1, KEr, Nr)
    |                    | (Judgement #1)
    |                    |
    |<-------------------| IKE_AUTH request (HDR, SK {IDi, AUTH, N, SAi2, TSi, TSr})
    |                    | (Packet #2)
    |------------------->| IKE_AUTH response (HDR, SK {IDr, AUTH, N, SAr2, TSi, TSr})
    |                    | (Judgement #2)
    |                    |
    |<-------------------| CREATE_CHILD_SA request (HDR, SK {SA, Ni})
    |                    | (Packet #3)
    |------------------->| CREATE_CHILD_SA response (HDR, SK {SA, Nr})
    |                    | (Judgement #3)
    |                    |
    V                    V

N: USE_TRANSPORT_MODE
Packet #1 See Common Packet #1
Packet #2 See Common Packet #3
Packet #3 See below

From part A to part D, TN1 transmits an IKE_SA_INIT request including a SA payload
which contains the transforms as follows:
IKE_SA_INIT exchanges Algorithms
Encryption PRF Integrity D-H Group
Part C ENCR_3DES PRF_HMAC_SHA1 AUTH_AES_XCBC_96
AUTH_HMAC_SHA1_96
Group 2

* Packet #2: IKE_AUTH request
IPv6 Header Same as the common packet #11
UDP Header Same as the common packet #11
IKEv2 Header Same as the common packet #11
SA Proposals Other fields are same as the common packet #11
SA Proposals See SA Table below
Ni, Nr Payload Same as the Common Packet #11
Proposal #1 SA Proposal Next Payload 0 (last)
Reserved 0
Proposal Length 44
Proposal # 1
Proposal ID 1 (IKE)
SPI Size 0
# of Transforms 5
SA Transform Next Payload 3 (more)
Reserved 0
Transform Length 8
Transform Type According to above configuration
Reserved 0
Transform ID According to above configuration
SA Transform Next Payload 3 (more)
Reserved 0
Transform Length 8
Transform Type 1 (ENCR)
Reserved 0
Transform ID 3 (3DES)
SA Transform Next Payload 3 (more)
Reserved 0
Transform Length 8
Transform Type 2 (PRF)
Reserved 0
Transform ID 2 (HMAC_SHA1)
SA Transform Next Payload 3 (more)
Reserved 0
Transform Length 8
Transform Type 3 (INTEG)
Reserved 0
Transform ID 2 (HMAC_SHA1_96)
SA Transform Next Payload 0 (last)
Reserved 0
Transform Length 8
Transform Type 4 (D-H)
Reserved 0
Transform ID 2 (1024 MODP Group)
  Part C: Multiple Extended Sequecnce Numbers (BASIC)
     13. TN1 starts to negotiate with NUT by sending IKE_SA_INIT request.
     14. Observe the messages transmitted on Link A.
     15. After reception of IKE_SA_INIT response from the NUT, TN1 transmits an IKE_AUTH
         request to the NUT.
     16. Observe the messages transmitted on Link A.
     17. TN1 transmits a CREATE_CHILD_SA request including a Notify Payload of type
         REKEY_SA and rekeyed CHILD_SA's SPI value in the SPI field to the NUT.
     18. Observe the messages transmitted on Link A.


Observable Result

  Part C
       Step 14: Judgment #1
       The NUT transmits an IKE_SA_INIT response including "ENCR_3DES",
       "PRF_HMAC_SHA1", "AUTH_HMAC_SHA1_96" and "D-H group 2" as accepted
       algorithms.
       Step 16: Judgment #2
       The NUT transmits an IKE_AUTH response including "ENCR_3DES",
       "AUTH_HMAC_SHA1_96" and "No Extended Sequence Numbers" as accepted algorithms.
       Step 18: Judgment #3
       The NUT transmits a CREATE_CHILD_SA response including "ENCR_3DES",
       "PRF_HMAC_SHA1", "AUTH_HMAC_SHA1_96" and "D-H group 2" as proposed
       algorithms.


Possible Problems

  * None.