Title

  Test IKEv2.EN.R.1.2.6.8: D-H transform NONE when rekeying the IKE_SA
  Part A: (BASIC)


Purpose

  To verify an IKEv2 device properly handles D-H transform NONE when rekeying the
  IKE_SA.


References

  * [RFC 4718] - Sections 5.12


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)
    |---------X          | CREATE_CHILD_SA response (HDR, SK {N(NO_PROPOSAL_CHOSEN)})
    |                    | (Judgement #3)
    |                    |
    V                    V

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

Packet #3: CREATE_CHILD_SA request Packet #3 is same as Common Packet #11 except SA Transform proposed in each test.

Part A:
SA Transform of Tranform Type D-H is replaced by the following SA
Transfrom.
SA Transform Next Payload 0 (last)
Reserved 0
Transform Length 8
Transform Type 4 (D-H)
Reserved 0
Transform ID 0 (NONE)
  Part A: (BASIC)
     1. TN1 starts to negotiate with NUT by sending IKE_SA_INIT request.
     2. Observe the messages transmitted on Link A.
     3. After reception of IKE_SA_INIT response from the NUT, TN1 transmits an IKE_AUTH
        request to the NUT.
     4. Observe the messages transmitted on Link A.
     5. TN1 transmits a CREATE_CHILD_SA request including a SA payload. A proposal in the
        SA payload contains 1 (IKE) in the Protocol ID field, 8 in the SPI size field and the rekeyed
        IKE_SA Initiator's SPI value. The message proposes D-H transform NONE.
     6. Observe the messages transmitted on Link A.


Observable Result

  Part A
       Step 2: 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 4: 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 6: Judgment #3
       The NUT transmits a CREATE_CHILD_SA response including a Notify payload of type
       NO_PROPOSAL_CHOSEN.


Possible Problems

  * None.