Re: [tor-talk] .onion name gen

[Mirimir <mirimir@xxxxxxxxxx>]

On 03/04/2016 01:39 PM, Scfith Rise up wrote:
> It _would_ be the same private key. Good luck with generating 1.2
> septillion permutations (16^32). 

That's not what I get from
https://trac.torproject.org/projects/tor/wiki/doc/HiddenServiceNames.
SHA1 collisions are possible.

> But could be doable in a few years so to answer your question, I
> believe there can only be one published in the HSDIR, so first come
> first served. Facebook's would have to be DDOS / shutdown and then
> the forged one can be spun up and published. 

As I understand it, what matters is which one announced most recently.

> Please correct me if I'm wrong as I've only been researching Tor since 2015. 
> 
>> On Mar 4, 2016, at 3:23 PM, Mirimir <mirimir@xxxxxxxxxx> wrote:
>>
>>> On 03/04/2016 01:03 PM, Andreas Krey wrote:
>>>> On Fri, 04 Mar 2016 19:55:01 +0000, Flipchan wrote:
>>>> IF i generate a .onion domain , isnt there a risk that someone can generate the same domain? I mean anyone can generate .onion domains and IF i got an easy .onion address then some could easily generate that rsa key right?
>>>
>>> There is no 'easy' onion address, only ones that look like they
>>> are. Faking facebookcorewwwi takes the same effort as any other.
>>> Getting an onion that starts with facebook but does not end in
>>> corewwwi is much easier (by the factor 1099511627775), but that
>>> is true for any other eight character prefix as well.
>>>
>>> Andreas
>>
>> OK, but let's say that someone got facebookcorewwwi.onion, running
>> scallion on some mega-GPU monster. It's hugely improbable, I know. And
>> they'd have a different private key, of course. But how would Tor handle
>> that? Would it work like running multiple onion copies does now? That
>> is, would they compete for HSDir priority?
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