R_A_RFC2408_5_10_2_2_CR - [Responder Test] Invalid Certificate Request Payload Format(Certificate Authority is incorrect) check
End-Node
R_A_RFC2408_5_10_2_2_CR.seq [-tooloption ...] -pkt R_A_RFC2408_5_10_2_2_CR.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):initiator
|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:responder
XXXX: EUI64 address
Verification Points
Determine if the Certificate Authority is supported for the
specified Certificate Encoding. If the Certificate Authority is
invalid or improperly formatted, the payload is discarded and the
following actions are taken:
(a) The event, INVALID CERTIFICATE AUTHORITY, MAY be logged in
the appropriate system audit file.
(b) An Informational Exchange with a Notification payload
containing the INVALID-CERT-AUTHORITY message type MAY be
sent to the transmitting entity. This action is dictated by
a system security policy.
Configuration
Initiator and Responder generate the public key and the secret key
Certificate Request Payload Format(HOST-2:Initiator)
Certificate Authority field: 0 (invalid value)
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 |
Aggressive |
|
3DES |
SHA |
RSA signatures |
2 |
8 Hour |
NUT addr |
PROTO_IPSEC_ESP |
ESP_3DES |
Transport |
HMAC-SHA |
8 Hour |
any |
| HOST-2 |
HOST-2 addr |
NUT addr |
Aggressive |
|
3DES |
SHA |
RSA signatures |
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
This test check is following.
AGGRESSIVE EXCHANGE
# Initiator(TN) Direction Responder(NUT)
(1) HDR; SA, KE, Ni, IDii ========>
CERT Req <-----Cert Data field: 0(invalid)
(2) <======== HDR; SA, KE, Nr, IDir, SIG_R <-----Must not transmit
CERT, CERT Req
or
(3) <======== HDR*; HASH(1); N/D
(HDR; N/D)
Judgement (Check *1)
1. Send the first message from TN
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).
Keying material used to arrive at a common shared secret and random
information which is used to guarantee liveness and protect against
replay attacks are also transmitted. Additionally, the initiator
transmits identification information.
And the initiator send Certificate Request Payload.
2. Receive the second message from NUT
In the second message (2-B), the responder indicates either an ISAKMP
Notify Payload or an ISAKMP delete Payload.
The first message is not accepted. And the second message(2-A) is not returned
(* or INVALID-CERT-AUTHORITY(2-B) message is returned).
*option : if you want to check the retruned Notify message.
Clean up SAD and SPD
RFC2408
5.10 Certificate Request Payload Processing
(omit)
When a Certificate Request payload is received, the receiving entity
(initiator or responder) MUST do the following:
1. Determine if the Certificate Encoding is supported. If the
Certificate Encoding is invalid, the payload is discarded and the
following actions are taken:
(a) The event, INVALID CERTIFICATE TYPE, MAY be logged in
the appropriate system audit file.
(b) An Informational Exchange with a Notification payload
containing the INVALID-CERT-ENCODING message type MAY be
sent to the transmitting entity. This action is dictated by
a system security policy.
If the Certificate Encoding is not supported, the payload is
discarded and the following actions are taken:
(a) The event, CERTIFICATE TYPE UNSUPPORTED, MAY be logged in
the appropriate system audit file.
(b) An Informational Exchange with a Notification payload
containing the CERT-TYPE-UNSUPPORTED message type MAY be
sent to the transmitting entity. This action is dictated by
a system security policy.
2. Determine if the Certificate Authority is supported for the
specified Certificate Encoding. If the Certificate Authority is
invalid or improperly formatted, the payload is discarded and the
following actions are taken:
(a) The event, INVALID CERTIFICATE AUTHORITY, MAY be logged in
the appropriate system audit file.
(b) An Informational Exchange with a Notification payload
containing the INVALID-CERT-AUTHORITY message type MAY be
sent to the transmitting entity. This action is dictated by
a system security policy.
3. Process the Certificate Request. If a requested Certificate Type
with the specified Certificate Authority is not available, then
the payload is discarded and the following actions are taken:
(a) The event, CERTIFICATE-UNAVAILABLE, MAY be logged in the
appropriate system audit file.
(b) An Informational Exchange with a Notification payload
containing the CERTIFICATE-UNAVAILABLE message type MAY be
sent to the transmitting entity. This action is dictated by
a system security policy.
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