[Mini-NDN] [EXT] ERROR: Failed to register prefix (authorization rejected)

[Nazatul Haque Sultan]

Hi Junxiao,

Thanks for your reply. I understood from your reply that if more than two
producers use the same key to sign interests than the mentioned problem
arises.

However, my topology has only one producer (which publishes multiple
contents at a regular interval of time). Unfortunately, I am still getting
that error message. Can you please explain this to me?

Thank you.

Best regards,
Nazatul

On Wed, Aug 19, 2020 at 6:00 PM Junxiao Shi <shijunxiao at email.arizona.edu>
wrote:

> Hi Nazatul
>
> This is caused by multiple producers trying to register prefixes
> simultaneously.
> Prefix registration uses signed Interests. If two signed Interests are
> signed by the same key but processed out of order, the validator will
> reject them. See
> https://redmine.named-data.net/issues/2293
>
> To solve this issue, give each producer a separate KeyChain by setting
> distinct values in NDN_CLIENT_PIB and NDN_CLIENT_TPM environment variables,
> so that they sign the signed Interests with distinct keys.
> Ideally this logic should be provided by Mini-NDN scripts.
>
> Yours, Junxiao
>
> On Tue, Aug 18, 2020 at 23:05 Nazatul Haque Sultan via Mini-NDN <
> mini-ndn at lists.cs.ucla.edu> wrote:
>
>> *External Email*
>> Dear All,
>>
>> I was trying to publish contents (videos) using
>> "ndnputchunks. However, a few times I could see an "*authorization
>> rejected*" error:
>>
>> ERROR: Failed to register prefix '/ndn/a-site/a/XYZ.mp4' (authorization
>> rejected)
>>
>> I have attached a screenshot of it. Can someone please explain this to
>> me? That will be very helpful.
>>
>> Thank you in advance.
>>
>> Best Regards,
>> Nazatul
>>
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