Re: [GNUnet-developers] gnunet-guile reboot & guix (take two)

[ng0]

On Mon, 05 Feb 2018, address@hidden (Ludovic Courtès) wrote:
> Hi amirouche,
>
> amirouche <address@hidden> skribis:
>
>> After discussing gnunet & guix at fosdem with gnunet
>> people I have better picture of where things can go.
>>
>> The short story is:
>>
>> 1) There is no way to know the gnunet hash aka. gnunet uri
>>   of a substitute before the build.
>>
>> 2) There is no way to associate gnunet hash and guix hash
>>   in a secure/trusted manner over gnunet. Except maybe
>>   if we use GNS to publish guix hash as subdomains of
>>   substitute-server.guix.gnu?
>
> Before jumping to conclusions, did you check the narinfo format that we
> use on HTTP?  A narinfo is essentially a statement that a given store
> item, resulting from a .drv build, has a specific content hash.
>
> Lookup by content hash over GNUnet’s AFS is all we’d need.
>
> See also the discussion in
> <https://www.gnu.org/software/guix/blog/2017/reproducible-builds-a-status-update/>.
>
> HTH!
>
> Ludo’.
>
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> address@hidden
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Adding to this subthread: I added nar and narinfo support to
libextractor last year, maybe this comes in handy as well.
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