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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Tom Beecher on Nov 13

Incorrect.

If the RIR revokes the resource certificate used to sign the ROA, the ROA
is also then revoked. Validator software will then remove the VRPs that had
been created from that previously valid ROA. If there are no other VRPs
that cover the BGP message parameters, the validator will return NOTFOUND.

If the RIR refused to publish or deleted the ROA, validators will
eventually delete them, which also removes the VRP previously created. If...




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by William Herrin on Nov 13

Not really. If it's technically feasible to override or roll back
transactions, you've violated one of the central tenets of block
chain. You can design a system that allows transactions to be rolled
back or changed by a central authority but the result would not be a
block chain and would not have the desired characteristic of
resistance against government compulsion.

Regards,
Bill Herrin




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Jason R. Rokeach via NANOG on Nov 13

transactions, you've violated one of the central tenets of block
chain.

To be clear, I did not state such. Ownership can be transferred by smart contract. This does not violate a core tenet
of blockchains and is a key feature of almost all blockchains which still exhibit signs of life.




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by William Herrin on Nov 13

If the RIR can institute a revocation via smart contract, for any
reason, then you haven't achieved any resilience against government
compulsion applied to the RIR, which was Brandon's reason for
considering blockchain in the first place.

Regards,
Bill Herrin




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Matt Corallo on Nov 13

Thanks for raising this topic. In all the rush to deploy RPKI I fear these issues are not talked
about enough.

A variant of this could make some sense, the issue is that it doesn't do you a whole lot of good to
have a local RPKI anchor that you and your local community look to if the global internet community
isn't looking at it - sure, your IPs are routable to a few of your friends, but they can't reach
Google...oops....




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Seth David Schoen on Nov 13

Matt Corallo writes:

There are some tools out there either directly using or inspired by
Certificate Transparency that facilitate transparency logging of other
kinds of events. It might be interesting to put RPKI events into one
of those.

The big difference between blockchains and systems like CT is that the
latter do have single points of failure (an operator can shut down the
log completely, or break it in other ways), or at least relatively...




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Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by David Conrad via NANOG on Nov 14

Tom,

Something I’ve been curious about for some time: since deployment of RPKI is (mostly) hosted by the RIRs and
ultimately, the RIRs control the validation chain, what would happen if the RIR creates (or, if you prefer, is directed
by court order to create) INVALIDs?

Regards,
-drc





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