Re: Machine Identity

der Mouse <mouse@Rodents.Montreal.QC.CA> Thu, 28 February 2008 19:59 UTC

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From: der Mouse <mouse@Rodents.Montreal.QC.CA>
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Date: Thu, 28 Feb 2008 14:55:42 -0500 (EST)
To: discuss@apps.ietf.org
Subject: Re: Machine Identity
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> Of course, an entity must not be able to take the identity of another
> one, for instance to steal its reputation.  Hence the need for
> authentication.

That's extremely hard, unless you add "...without the cooperation of
the entity whose identity is being copied" to the end of the first
sentence.

> On the other hand, being able to generate a lot of identities is not
> a problem: an entity which would do so would start at a reputation of
> zero, which is not its interest.

It is if that entity's own reputation is negative.  This, for example,
is why spammers register throwaway domains.  In your P2P example, think
serious leechers.

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