nanog mailing list archives

Re: BGP Security and PKI Hierarchies (was: Re: Wifi Security)


From: Randy Bush <randy () psg com>
Date: Wed, 23 Nov 2005 15:19:08 -1000


So when one receives an update, which part is it that you verify with
the certificate derived from the RIR chain and which part is it that you
verify with the certificate derived from the web-of-trust?  I'm guessing
the answer in part is that there's a signature attesting to the
prefix origination based on the RIR-rooted certificate, but I'm not
certain what you are suggesting you would sign with the web-of-trust
based ISP identity certificate (the origination announcement, indicating
that it is not only authorization to originate but also source
authentication?)

something like

the rir attests to the delegation of the prefix and an asn to the
identified isp.

the isp signs, using their isp identity to
  o originating from the asn
  o originating that prefix (in sbgp, toward another isp)
  o possibly delegating a subset of that prefix
  o passing other prefixes on (in sbgp, toward ...)

but either you, smb, or jis should be able to get it more correctly
than i.

randy


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