Re: [DNSOP] draft-lewis-domain-names-00.txt

[Alec Muffett <[e-mail]>]

>> So it's IMO fine to say ".onion addresses are case-insensitive and
>> will comply with existing DNS limitations for label lengths (63) and
>> maximum fqdn lengths (253ish)".
>> Which contradicts draft-lewis-domain-names-00
> 
> 
> So - and not to be pointed - but in your email I reference, should I ignore that for the sake of this document?  I mean what the message says seems to contradict what you are quoting from Mathewson - which is fine - but this is something unclear to me.


Yes, you should ignore that text.

Nick is the engineer at Tor who implements the relevant code.

In the following, he provides the following undertaking:

https://lists.torproject.org/pipermail/tor-dev/2015-August/009275.html <https://lists.torproject.org/pipermail/tor-dev/2015-August/009275.html>

> The examples in Proposal 224 are a mere 53 characters long leaving 10 to
> play with for padding-hyphens and possibly checksum characters.
>
> Nick: Is this likely to need to change? Or might there be a need to encode >
> 315 bits / 63 chars total?

I don't anticipate this changing.

If there were ever a need to encode more than that number of bits,
we'd add an extra label.

So, .onion addresses will stay within DNS bounds.  :-)

    - alec