Title

  Test IKEv2.EN.R.1.1.6.4: Receiving Multiple Proposals for IKE_SA
  Part C: Multiple Integrity Algorithms (BASIC)


Purpose

  To verify an IKEv2 device properly handles IKE_SA_INIT request with multiple proposals.


References

  * [RFC 4306] - Sections 2.7, 3.4 and 3.10.1
  * [RFC 4718] - Sections 2.1 and 2.2


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)
    |                    |
    V                    V

Packet #1 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
Proposals Protocol ID Encryption PRF Integrity D-H Group
Part C Proposal #1 IKE ENCR_3DES PRF_HMAC_SHA1 AUTH_AES_XCBC_96 Group 2
Proposal #2 IKE ENCR_3DES PRF_HMAC_SHA1 AUTH_HMAC_SHA1_96 Group 2


* Packet #1 IKE_SA_INIT request
IPv6 Header Same as the Common Packet #1
UDP Header Same as the Common Packet #1
IKEv2 Header Same as the Common Packet #1
SA Payload Other fields are same as the common packet #1
SA Proposals See SA Table below
KE Payload Same as the Common Packet #1
Ni, Nr Payload Same as the common packet #1


Proposal #1 SA Proposal Next Payload 2 (more)
Reserved 0
Proposal Length 44
Proposal # 1
Protocol ID 1 (IKE)
SPI Size 0
# of Transforms 5
SA Transform Next Payload 3 (more)
Reserved 0
Transform Length 8
Transform Type 1 (ENCR)
Reserved 0
Transform ID According to above configuration
SA Transform Next Payload 3 (more)
Reserved 0
Transform Length 8
Transform Type 2 (PRF)
Reserved 0
Transform ID According to above configuration
SA Transform Next Payload 3 (more)
Reserved 0
Transform Length 8
Transform Type 3 (INTEG)
Reserved 0
Transform ID According to above configuration
SA Transform Next Payload 0 (last)
Reserved 0
Transform Length 8
Transform Type 4 (D-H)
Reserved 0
Transform ID According to above configuration
Proposal #2 SA Proposal Next Payload 0 (last)
Reserved 0
Proposal Length 44
Proposal # 2
Protocol ID 1 (IKE)
SPI Size 0
# of Transforms 5
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 Integrity Algorithms (BASIC)
      13. TN1 starts to negotiate with NUT by sending IKE_SA_INIT request including a SA payload
          as described above.
      14. Observe the messages transmitted on Link A.


Observable Result

  Part C
    Step 6: 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.


Possible Problems

  * None.