[Nfd-dev] Auto prefix propagation on multiple machines

Lee, Jongdeog jlee700 at illinois.edu
Fri Mar 17 13:59:49 PDT 2017


Dear Junxiao,

  Thanks for you reply.
  By the way, what are the conditions that the NDN node replies this error message to the producer regarding auto prefix registration: "authorization rejected"

Best wishes,
Jongdeog Lee (JD)

------------------------------------------------
Ph.D. Student
Department of Computer Science
University of Illinois at Urbana-Champaign
________________________________
From: Junxiao Shi [shijunxiao at email.arizona.edu]
Sent: Thursday, March 16, 2017 2:00 PM
To: Lee, Jongdeog; nfd-dev at lists.cs.ucla.edu
Subject: Re: [Nfd-dev] Auto prefix propagation on multiple machines

Hi Jongdeog

1. I have a valid certificate (/ndn/edu/illinois/jlee700) on machine A and want to use the same certificate on machine B.
Command Interests design do not support having same certificate on multiple machines, because timestamp checking would fail if clocks are perfectly synchronized.


  After restarting NFD, nfd commands make this error:
"Private key doesn't exist"
This error means the key is in PIB but not TPM. It isn't related to clock synchronization. I don't know the cause.

2. Instead of using the same certificate, I tried to issue my own NDN certificate (/ndn/edu/illinois/jlee700/apollo) signed by my trusted certificate. I could see the apollo certificate installed on machine B after following Junxiao's post. However, when the producer (ndnpingserver /ndn/edu/illinois/jlee700/apollo/test) runs on machine B, it starts to advertise /ndn/edu/illinois/jlee700 instead of /ndn/edu/illinois/jlee700/apollo.
This means identity /ndn/edu/illinois/jlee700/apollo exists in NFD-RIB's PIB.

Yours, Junxiao
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