Re: [tor-talk] Tor Design : Differents keys used for connection.

[Brieuc BarthÃlemy <bri@xxxxxxxxx>]

Hi Roger,
Glad YOU answered me, ashamed I didn't find it. ;)

Thank you so much!

Brieuc BarthÃlemy

www.brieuc.be | www.fatcha.be | carolofornie.be

@bribarthelemy
<http://t.sidekickopen52.com/e1t/c/5/f18dQhb0S7lC8dDMPbW2n0x6l2B9nMJN7t5XZsd0s2vN1pNBMlRbFvlW8qC6LR56dQ67f1Vjyr202?t=https%3A%2F%2Ftwitter.com%2Fbribarthelemy&si=5080546748661760&pi=73b41fc0-af6b-4631-8feb-df53cef3e691>

On Thu, May 19, 2016 at 10:21 PM, Roger Dingledine <arma@xxxxxxx> wrote:

> On Thu, May 19, 2016 at 10:13:54PM +0200, Brieuc BarthÃlemy wrote:
> > In point 4 (Page 4) the article talks about differents keys:
> > - A long term identity key: to sign TLS certificate, OR route descriptor
> > and to sign directories.
> > - A short-term onion key: used to decrypt requests from users.
> > - Ephemerals keys ( first words on page 5 )
> > - And "link keys" for TLS communication.
> >
> > My question is: do you think the last two of them ( Ephemerals and link
> > eyes ) are the same one ?
> > Because I don't find any clear informations about those "ephemerals"
>
> You might enjoy
> https://www.torproject.org/docs/faq#KeyManagement
>
> It sounds like the 'ephemeral keys' you mention could be the circuit-level
> keys, that is, the symmetric keys negotiated by the circuit handshake
> and used for the lifetime of that circuit.
>
> --Roger
>
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