I_RFC2408_5_11_2_1_HASH - [Initiator Test] Check the Hash to confirm it is supported
End-Node
I_RFC2408_5_11_2_1_HASH.seq [-tooloption ...] -pkt I_RFC2408_5_11_2_1_HASH.def -tooloption : v6eval tool option
See also ike_common.def and ike_ipsec.def and ike_addr.def and ike_pkt_ph1_recv.def and ike_pkt_ph2_recv.def
HOST-2(TN):responder
|3ffe:501:ffff:101::11
|
Net-y --+--------+------------------------ 3ffe:501:ffff:101::/64
|
|
ROUTER-1(TN)
|3ffe:501:ffff:100::11
|
Net-z --+--------+------------------------ 3ffe:501:ffff:100::/64
|
|3ffe:501:ffff:100:XXXX
NUT:initiator
XXXX: EUI64 address
Verification Points
Determine if the Hash is supported. If the Hash determination
fails, the message is discarded and the following actions are
taken:
(a) The event, INVALID HASH INFORMATION, MAY be logged in the
appropriate system audit file.
(b) An Informational Exchange with a Notification payload
containing the INVALID-HASH-INFORMATION message type MAY be
sent to the transmitting entity. This action is dictated by
a system security policy.
Configuration
Hash Payload Format(HOST-2:Responder)
Hash Data field : not include this field (invalid)
Initiator and Responder IKE parameter
At least, following parameter must be included in proposal.
| Machine |
Src |
Dest |
Phase I |
Phase II |
| Ex mode |
Key Value |
Enc Alg |
Hash Alg |
Auth Method |
DH Group |
PH1 Lt |
IDx |
Proto ID |
Trans ID |
Mode |
Auth Alg |
PH2 Lt |
Upper |
| NUT |
NUT addr |
HOST-2 addr |
Main |
IKE-TEST |
3DES |
SHA |
pre-shared key |
2 |
8 Hour |
NUT addr |
PROTO_IPSEC_ESP |
ESP_3DES |
Transport |
HMAC-SHA |
8 Hour |
any |
| HOST-2 |
HOST-2 addr |
NUT addr |
Main |
IKE-TEST |
3DES |
SHA |
pre-shared key |
2 |
8 Hour |
HOST-2 addr |
PROTO_IPSEC_ESP |
ESP_3DES |
Transport |
HMAC-SHA |
8 Hour |
any |
*Ex Mode = Exchange mode
*IDx = identity payload(FQDN or user FQDN can also be chosen as IDx)
*Enc Alg = IKE Encryption Algorithm
*Hash Alg = IKE Authentication Algorithm
*Key Value = pre-shared key value
*PH1 Lt = Phase-1 Lifetime
*PH2 Lt = Phase-2 Lifetime
*Proto ID = Protocol Identifier
*Trans ID = Transform Identifier
*Mode = Encapsulation Mode
*Auth Alg = Authentication Algorithm
*Auth Method = Authentication Method
*DH Group = Diffie-Hellman Group
*Upper = Upper Layer Protocol
*NUT addr = NUT address
*HOST-2 addr = HOST-2 address
Pre-Sequence
In order to start the negotiation of IKE,
NUT transmits Echo Request to TN(HOST-2).
This test check is following.
IDENTITY PROTECTION EXCHANGE
(1) HDR; SA ========>
(2) <======== HDR; SA
(3) HDR; KE; NONCE ========>
(4) <======== HDR; KE; NONCE
(5) HDR*; IDii; HASH_I ========>
(6) <======== HDR*; IDir; HASH_R <----Hash Data field : not include this field (invalid)
(7) HDR*; HASH(1); N/D ========> <----must not start Phase II
(HDR; N/D)
Judgement (Check *1)
1. Receive the first message from NUT
In the first message (1), the initiator generates a proposal it
considers adequate to protect traffic for the given situation. The
Security Association, Proposal, and Transform payloads are included
in the Security Association payload (for notation purposes).
2. Send the second message from TN
In the second message (2), the responder indicates the protection
suite it has accepted with the Security Association, Proposal, and
Transform payloads.
3. Receive the third message from NUT
In the third (3) message, the initiator send keying material
used to arrive at a common shared secret and random information
which is used to guarantee liveness and protect against replay attacks.
4. Send the fourth message from TN
In the fourth (4) message, the responder send keying material
used to arrive at a common shared secret and random information
which is used to guarantee liveness and protect against replay attacks.
5. Receive the fifth message from NUT
In the fifth (5) message, the initiator send identification
information and the results of the agreed upon authentication
function(hash function).
6. Send the sixth message from TN
In the sixth (6) message, the responder send identification
information and the results of the agreed upon authentication
function(hash function).
7. Receive the seventh message from NUT
In the seventh message (7), the initiator indicates either an ISAKMP
Notify Payload or an ISAKMP delete Payload.
The first to the fifth message must be exchanged correctly.
The sixth message must not be accepted. And the seventh message must not be returned (* or
INVALID-HASH-INFORMATION message is returned).(Not establish ISAKMP SA,
Not start negotiation of Phase II).
*option : if you want to check the retruned Notify message.
Clean up SAD and SPD
RFC2408
5.11 Hash Payload Processing
(omit)
When a Hash payload is received, the receiving entity (initiator or
responder) MUST do the following:
1. Determine if the Hash is supported. If the Hash determination
fails, the message is discarded and the following actions are
taken:
(a) The event, INVALID HASH INFORMATION, MAY be logged in the
appropriate system audit file.
(b) An Informational Exchange with a Notification payload
containing the INVALID-HASH-INFORMATION message type MAY be
sent to the transmitting entity. This action is dictated by
a system security policy.
2. Perform the Hash function as outlined in the DOI and/or Key
Exchange protocol documents. If the Hash function fails, the
message is discarded and the following actions are taken:
(a) The event, INVALID HASH VALUE, MAY be logged in the
appropriate system audit file.
(b) An Informational Exchange with a Notification payload
containing the AUTHENTICATION-FAILED message type MAY be
sent to the transmitting entity. This action is dictated by
a system security policy.
(omit)
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