Test IKEv2.EN.I.1.2.3.4: Sending Multiple Transform
Part A: Multiple Encryption Algorithms (ADVANCED)
To verify an IKEv2 device properly transmits CREATE_CHILD_SA request with multiple
transforms to rekey CHILD_SA.
* [RFC 4306] - Sections 2.7 and 3.3
* Network Topology
Connect the devices according to the Common Topology.
* Configuration
In each part, configure the devices according to the following configuration:
|
CREATE_CHILD_SA exchanges Algorithms |
| Encryption |
Integrity |
ESN |
| Part A |
ENCR_3DES
ENCR_AES_CBC |
AUTH_HMAC_SHA1_96 |
No ESN |
* Pre-Sequence and Cleanup Sequence
IKEv2 on the NUT is disabled after each part.
NUT TN1
(End-Node) (End-Node)
| |
|------------------->| IKE_SA_INIT request (HDR, SAi1, KEi, Ni)
| | (Judgement #1)
|<-------------------| IKE_SA_INIT Response (HDR, SAr1, KEr, Nr)
| | (Packet #1)
| |
|------------------->| IKE_AUTH request (HDR, SK {IDi, AUTH, N+, SAi2, TSi, TSr})
| | (Judgement #2)
|<-------------------| IKE_AUTH Response (HDR, SK {IDr, AUTH, N+, SAr2, TSi, TSr})
| | (Packet #2)
| |
--- ---
| | ---
|<-------------------| IPSec {Echo Request} |
| | (Packet #3) |
|------------------->| IPSec {Echo Reply} | repeat Echo exchange until lifetime of SA is expired
| | (Judgement #3) |
| | ---
--- ---
| |
|------------------->| CREATE_CHILD_SA request (HDR, SK {N, N+, SA, Ni, TSi, TSr})
| | (Judgement #4)
| |
V V
N: REKEY_SA
N+: USE_TRANSPORT_MODE
| Packet #1 |
See Common Packet #2 |
| Packet #2 |
See Common Packet #4 |
| Packet #3 |
See Common Packet #19 |
Part A: Multiple Encryption Algorithms (ADVANCED)
1. NUT starts to negotiate with TN1 by sending IKE_SA_INIT request.
2. Observe the messages transmitted on Link A.
3. TN1 responds with an IKE_SA_INIT response to the NUT.
4. Observe the messages transmitted on Link A.
5. After reception of IKE_AUTH request from the NUT, TN1 responds with an IKE_AUTH
response to the NUT
6. TN1 transmits an Echo Request with IPsec ESP using corresponding algorithms to NUT.
7. Observe the messages transmitted on Link A.
8. Repeat Steps 6 and 7 until lifetime of SA is expired for 30 seconds.
9. Observe the messages transmitted on Link A.
Part A
Step 2: Judgment #1
The NUT transmits an IKE_SA_INIT request including "ENCR_3DES",
"PRF_HMAC_SHA1", "AUTH_HMAC_SHA1_96" and "D-H group 2" as proposed
algorithms.
Step 4: Judgment #2
The NUT transmits an IKE_AUTH request including "ENCR_3DES",
"AUTH_HMAC_SHA1_96" and "No Extended Sequence Numbers" as proposed algorithms.
Step 7: Judgment #3
The NUT transmits an Echo Reply with IPsec ESP using corresponding algorithms.
Step 9: Judgment #4
The NUT transmits a CREATE_CHILD_SA request including "ENCR_3DES",
"ENCR_AES_CBC", "AUTH_HMAC_SHA1_96" and "No Extended Sequence Numbers"
as proposed algorithms. And the CREATE_CHILD_SA request includes a Notify payload of
type REKEY_SA containing rekeyed CHILD_SA's SPI value in the SPI field.
* Each NUT has the different lifetime of SA.