On 9/13/13, George Kadianakis desnacked@riseup.net wrote:
This proposal is in serious need for comments.
1.2. From the PoV of the HS client:
Tor clients can distinguish new-style HS addresses from old ones by their length. Legacy addresses are 16 base32 characters, while new ones are 56 (XXX) base32 characters.
If Tor is asked to connect to a legacy address it SHOULD throw a warning and advocate the use of new-style addresses (it should still connect to the HS however). In the future, when old-style HS addresses are close to depletion, we can introduce a torrc parameter that blocks client connections to old-style HS addresses.
As commented earlier on this list... https://lists.torproject.org/pipermail/tor-dev/2013-August/005286.html
This addressing change will break onioncat (IPv6) within Tor. https://www.onioncat.org/
I suggest a solution to transporting IPv6 within Tor be maintained/deployed concurrently with any change in current onion addressing and or transport mechanics.