Re: [Suit] SUIT URIs

[Carsten Bormann <[e-mail]>]

Do you need just URIs or also URI references?
Fragment ids?

Grüße, Carsten


> On 2021-06-02, at 12:04, Brendan Moran <[e-mail]> wrote:
> 
> The current text of the SUIT manifest specification uses textually-encoded URIs. While this is probably the most compact URI encoding, it does introduce an additional parsing burden on devices.
> 
> Should SUIT consider a mechanism for friendlier URIs? There are two immediate options:
> 1) SUIT URI:
> [
>  Scheme: int,
>  Host: tstr / bstr, ; tstr for domain, bstr for ip address
>  Path: tstr,
>  Query: tstr
> ]
> 
> 
> 
> 2) CRI as defined in draft-ietf-core-href:
> CRI-Reference = [
>     (authority // discard),
>     *path,
>     ? (([], fragment)              ; include array only if
>        //([+query], ?fragment))    ; at least one query and/or fragment
>   ]
> 
>   authority   = (?scheme, ?(host, ?port))
>   scheme      = (scheme-name
>                  // COAP // COAPS // HTTP // HTTPS)
>   scheme-name = (false, text .regexp "[a-z][a-z0-9+.-]*")
>   COAP = -1 COAPS = -2 HTTP = -3 HTTPS = -4
>   host        = (host-name // host-ip)
>   host-name   = (true, text)
>   host-ip     = bytes .size 4 / bytes .size 16
>   port        = 0..65535
>   discard     = 0..127
>   path        = text
>   query       = text
>   fragment    = text
> My concern with CRI is that it is not yet in Core’s WGLC.
> 
> Either choice could easily be added as an extension to SUIT later, but that might mean that SUIT implementations don’t adopt it.
> 
> 
> Best Regards,
> Brendan
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