Re: [6tisch-security] minimal security draft

Hello Peter,

We use COSE Key Set structure to transport link-layer keys. Key set is a CBOR array, while each key in the array is specified as a CBOR map object. This is quite flexible and relies on the already standardized document (COSE). We then bundle Key Set object together with a short 15.4 address to create a response that fits within a single 15.4 frame. For more details refer to Section 4.4 of minimal-security draft.

For the content-format question, doesn’t it suffice to use application/cbor as content type? I don’t have much experience with content-format registration so please correct me if I am missing something.

Regards,
Mališa

> On 09 Feb 2017, at 10:06, peter van der Stok <stokcons@xs4all.nl> wrote:
> 
> Dear authors,
> 
> For the transport of the link-layer keys have you thought about using a specific format?
> Will you specify a content-format in the CoAP registry?
> We should like to use that content format also in the est-coaps draft.
> 
> If you do, will it be possible to use CBOR and specifically binary arrays?
> 
> Greetings,
> 
> Peter
> 
> -- 
> Peter van der Stok
> vanderstok consultancy
> mailto: consultancy@vanderstok.org
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