A quick response:
it also decreases the incentive to
launch such an
attack because the threshold of witnesses that are required to sign the
document for the signature to be accepted can be locally set on each
client.
>>> This does; however, give a pretty straightfo
On 30 April 2016 at 09:56, Nicolas Gailly wrote:
> On 04/29/2016 05:13 PM, Tom Ritter wrote:
>>> The mechanism is similar for
>>> witnesses that went offline. The parent of an offline witness will
>>> set the bit
>>> in the bitmap of the failed witness.
>> You mention this in Cons as well
> On 1 May 2016, at 00:56, Nicolas Gailly wrote:
>
>>> 4.2 Benefits
>>>
>>>Technically, it is quite easy to implement witness cosigning if the
>>> group
>>>of witnesses is small. If we want the group of witnesses to be
>>> large, however
>>>– and we do, to ensure that compromising t
On 04/29/2016 05:13 PM, Tom Ritter wrote:
>> The mechanism is similar for
>> witnesses that went offline. The parent of an offline witness will
>> set the bit
>> in the bitmap of the failed witness.
> You mention this in Cons as well - it seems like the parents in the
> tree need to be more
> On 30 Apr 2016, at 01:13, Tom Ritter wrote:
>
>> 3.4 Optional: Break-the-glass Emergency Directory Adjustments
>> ...
>> With even fancier crypto, even the witnesses would not
>> necessarily need
>>to know, but that’s beyond the scope of this proposal and its
>> desirability may
>>be q
On 25 April 2016 at 07:32, Nicolas Gailly wrote:
> They can / should
> probably
> publish logs of the statements they witness or simply make available
> a public
> mirror of everything that its tree roster has been asked to sign.
This mirror can be 'unprotected' in the sense that you just
Hi all,
Since the first post, I've received some comments off-list and
consequently added more sections to the proposal. Particularly, it adds
a detailed description of the messages that needs to be passed down
between the witnesses, paragraphs to answer some questions, and a link
to the official
Hi Tor devs,
I'm part of the DeDiS team at EPFL and we are working on Cothority,
which is a generic framework for Collective Authority. We worked on a
proposal to apply Collective Signatures (CoSi) to D.A. consensus
document in the Tor ecosystem. While not adding too much complexity to
the Tor eco
