@Mike

There is something unhackable, but we'll need to build it first.

> Date: Mon, 2 Mar 2015 14:22:08 -0800
> Subject: Re: [agi] Couple thoughts
> From: [email protected]
> To: [email protected]
> 
> I get the feeling there is nothing left unhackable.  Even a
> typewriter, they can plant a effing video recorder somewhere and film
> you typing.  It used to be you made fun of the guy with tin foil on
> his head to "block transmissions."
> 
> On 3/2/15, John Rose via AGI <[email protected]> wrote:
> >> -----Original Message-----
> >> From: Matt Mahoney via AGI [mailto:[email protected]]
> >>
> >> Peers need to know when two messages are from the same source. If a peer
> >> earns a reputation for being a reliable source of information (like Google
> >> or
> >> your bank), then malicious peers will try to spoof messages from them. To
> >> prevent this, peers sign their messages using a mutually agreed secret
> >> key
> >> chosen at random. After an initial exchange (using e.g. Diffie-Hellman),
> >> I
> >> send you a message and a signature like SHA256(message + key). You
> >> receive
> >> the message, compute the signature, and compare it to the signature that
> >> I
> >> sent you. Since nobody else knows the key, and the hash is not invertible,
> >> you
> >> know the message must have come from me.
> >>
> >
> >
> > Well, that's the same as using HTTPS or another application layer protocol
> > over TLS/SSL with certificates signed by a certificate authority no? Though
> > in your communications protocol you control the signing and encryption
> > algorithm and everyone need not get a CA signed cert I suppose.
> >
> > John
> >
> >
> >
> >
> >
> >
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