Re: [Hipsec] HIP parameters critical flag

On 01/12/2010 09:24 AM, Ahrenholz, Jeffrey M wrote:
>> Since I suggested it, it makes sense to vote for it:
>>
>> 715
>>
>> Tobias
>>      
> Are you going to include the HIH parameter inside the ENCRYPTED TLV (in the I2 packet)?
> If so, it keeping HIH next to HOST_ID with the value 715 makes sense to me. Otherwise 63 would work.
>
> Have you considered extending the HOST_ID TLV by one field to include HIH (rather than using a separate parameter)?
> (for example the HI hi_hdr already indicates the RSA/DSA key type, the HIP_SIGNATURE contains SIG algorithm, etc.)
>    

I envision multiple HIH per HI.  With a possible ranking of HIH for the HI.

> -Jeff
>
>    
>>
>> Am 12.01.2010 um 16:58 schrieb Robert Moskowitz:
>>
>>      
>>> Tobias and I have been working away on 5201-bis and of
>>>        
>> course one new thing is the HIH parameter that needs a number...
>>      
>>> -------- Original Message --------
>>> Subject: 	Fwd: HIP parameters critical flag
>>> Date: 	Tue, 12 Jan 2010 11:49:51 +0100
>>> From: 	Tobias Heer<tobias.heer@gmx.de>
>>> To: 	Robert Moskowitz<rgm@htt-consult.com>
>>>
>>>
>>>
>>> Hello Bob,
>>>
>>>        
>>>> Am 11.01.2010 um 21:54 schrieb Robert Moskowitz:
>>>>
>>>>          
>>>>> So for defining the new HIH parmeter, I am looking at
>>>>>            
>> 5.2.1 and it talks about the critical flag.  Oops, of course
>> HIH is critical.  So I search for critical in the other
>> parameters and NONE mention being critical.
>>      
>>>>> What am I missing here???
>>>>>
>>>>>            
>>>> the C bit is the lowest order bit of the parameter number.
>>>>          
>> All parameters with odd numbers (e.g. Puzzle, Solution, DH
>> ...) are critical.
>>      
>>> We are going to clearify this in 5201-bis and explicitly
>>>        
>> state what is a critical parameter.
>>      
>>>        
>>>>> Also what is the type value for HIH to get it in the
>>>>>            
>> 'right' place in the parameters?
>>      
>>>>>            
>>>> The HIH definitely needs to be in the signed part of the
>>>>          
>> packet. I would consider it a parameter that is related to
>> the BEX. The appropriate parameter range would be 0-1023. We
>> probably need to check the HIP extensions to find a free
>> number in this range. I'll do this tomorrow.
>>      
>>>>          
>>> I looked at the parameter numbers and I would suggest
>>>        
>> number 715 because is located behind 705/Host_ID and it is
>> therefore close to it in the actual HIP control packet.
>>      
>>> I checked the following things for all active HIP drafts
>>>        
>> and documents that are accessible from the HIP WG status page:
>>      
>>> * There is no mentioning of the parameter number 715
>>> * The next parameter higher than 705/HOST_ID is 768/Cert
>>>        
>> (RFC5201 and draft-ietf-hip-cert-02.txt)
>>      
>>>   - there won't be any parameter between HOST_ID and HIH
>>>   - there is sufficient space between HIH and Cert to
>>>        
>> introduce new parameters
>>      
>>> I checked the following files:
>>>
>>> rfc4423.txt
>>> rfc5201.txt
>>> rfc5202.txt
>>> rfc5203.txt
>>> rfc5204.txt
>>> rfc5205.txt
>>> rfc5206.txt
>>> rfc5338.txt
>>> draft-ietf-hip-bone-03.txt
>>> draft-ietf-hip-cert-02.txt
>>> draft-ietf-hip-hiccups-00.txt
>>> draft-ietf-hip-nat-traversal-09.txt
>>> draft-ietf-hip-native-api-11.txt
>>>
>>> Any more to check? HIP RG documents?
>>>
>>>
>>> =================================================================
>>>
>>> And Miika proposes:
>>>
>>> I would say that it should be before the ESP_INFO parameter. 63?
>>>
>>>
>>>
>>> http://www.iana.org/assignments/hip-parameters/hip-parameters.xhtml
>>>
>>>
>>> ====================================================================
>>>
>>> So a hum is requested:
>>>
>>> 715?
>>> 63?
>>>
>>> Other?
>>>
>>>
>>>
>>> _______________________________________________
>>> Hipsec mailing list
>>> Hipsec@ietf.org
>>> https://www.ietf.org/mailman/listinfo/hipsec
>>>        
>>
>>
>>
>> --
>>
>> Dipl.-Inform. Tobias Heer, Ph.D. Student
>> Distributed Systems Group
>> RWTH Aachen University, Germany
>> tel: +49 241 80 207 76
>> web: http://ds.cs.rwth-aachen.de/members/heer
>>
>>
>>
>>
>>
>>
>>
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>>      