Re: [sidr] looking at repository withholding attacks.

2011-07-20 Thread Terry Manderson
>> >> Provided of course that you have a valid GB object since without a >> manifest a simple `cp 1.gbr 1.cer` will fail to validate under oops that should have been `mv 1.gbr 1.cer`. >> the assumption you make the validation selection regime based on >> filename extension > >

Re: [sidr] draft-ietf-sidr-repos-struct to Standards Track

2011-07-20 Thread Terry Manderson
On 21/07/11 2:15 AM, "Rob Austein" wrote: > At Tue, 19 Jul 2011 14:03:18 -0700, Terry Manderson wrote: >> >> Rob's observation that the extension exists in the manifest file name is a >> close approximation provided words exist as highlighted which gives clear >> instruction to implementers as

Re: [sidr] looking at repository withholding attacks.

2011-07-20 Thread Randy Bush
>>> I would prefer, given the identified case, that where a situation >>> exists that a manifest is is non-existent or discarded that the entire >>> publication point MUST be considered suspicious and not used for >>> validation of operational objects. I would be fine if the GB object >>> were stil

Re: [sidr] looking at repository withholding attacks.

2011-07-20 Thread Terry Manderson
On 21/07/11 12:42 PM, "Randy Bush" wrote: >> I would prefer, given the identified case, that where a situation >> exists that a manifest is is non-existent or discarded that the entire >> publication point MUST be considered suspicious and not used for >> validation of operational objects. I w

Re: [sidr] looking at repository withholding attacks.

2011-07-20 Thread Randy Bush
> I would prefer, given the identified case, that where a situation > exists that a manifest is is non-existent or discarded that the entire > publication point MUST be considered suspicious and not used for > validation of operational objects. I would be fine if the GB object > were still validate

Re: [sidr] looking at repository withholding attacks.

2011-07-20 Thread Terry Manderson
Steve, On 21/07/11 3:22 AM, "Stephen Kent" wrote: > Terry, > > The repository document mandates that each CA > issue a manifest and maintain it in an up-to-date > fashion; that's pretty clear. For example, 4.2.1 > says "If the authority alters any of the items > that it has published in the r

Re: [sidr] draft-ietf-sidr-repos-struct to Standards Track

2011-07-20 Thread Stephen Kent
At 12:53 PM +1000 7/18/11, Geoff Huston wrote: ... How is this X.500 directory "tagging" achieved in other PKIs? Three letter filename extension conventions? Or some other tag mechanism? I was referring specifically to the X.500 directory, which tags via its ASN.1 encoding for data types. But

Re: [sidr] looking at repository withholding attacks.

2011-07-20 Thread Sandra Murphy
On Wed, 20 Jul 2011, Stephen Kent wrote: Terry, The repository document mandates that each CA issue a manifest and maintain it in an up-to-date fashion; that's pretty clear. There's also the following text: 2.1. Manifests Every repository publication point MUST contain a manifest -

Re: [sidr] looking at repository withholding attacks.

2011-07-20 Thread Stephen Kent
Terry, The repository document mandates that each CA issue a manifest and maintain it in an up-to-date fashion; that's pretty clear. For example, 4.2.1 says "If the authority alters any of the items that it has published in the repository publication point, then the authority MUST issue a

Re: [sidr] draft-ietf-sidr-repos-struct to Standards Track

2011-07-20 Thread Rob Austein
At Tue, 19 Jul 2011 14:03:18 -0700, Terry Manderson wrote: > > Rob's observation that the extension exists in the manifest file name is a > close approximation provided words exist as highlighted which gives clear > instruction to implementers as to > 1) make the first approximation of validation

Re: [sidr] draft-ietf-sidr-repos-struct to Standards Track

2011-07-20 Thread Stephen Kent
At 9:08 PM -0700 7/17/11, Terry Manderson wrote: On 18/07/11 12:42 PM, "Stephen Kent" wrote: At 4:42 PM -0700 7/17/11, Terry Manderson wrote: the filename extension, which is part of the "file" data type above, conveys the needed info. yes, one could add an OID here, but ultimately an RP

Re: [sidr] draft-ietf-sidr-repos-struct to Standards Track

2011-07-20 Thread Stephen Kent
... I'm happy to see things tagged in a normative fashion, I just think putting the eggs into the filename/directory basket as a standards action is worrying. Cheers Terry Since we're using basic file systems for the repository (e.g., vs. LDAP), I think file names are an obvious candidate for