mirror of
https://github.com/ChronosX88/netsukuku.git
synced 2024-11-24 11:12:19 +00:00
39 lines
1.5 KiB
Plaintext
39 lines
1.5 KiB
Plaintext
|
== NTK_RFC 0007 ==
|
||
|
|
|
||
|
|
|
||
|
|
Subject: ANDNA counter system based on public key
|
||
|
|
|
||
|
|
----
|
||
|
|
This text describes a change to the counter_gnode system in ANDNA.
|
||
|
|
It will be included in the final documentation, so feel free to correct it.
|
||
|
|
But if you want to change the system here described, please contact us first.
|
||
|
|
----
|
||
|
|
|
||
|
|
{{{
|
||
|
|
The counter_gnode is used to prevent massive registrations of hnames by a
|
||
|
|
single node, however there is a bug in the actual protocol.
|
||
|
|
|
||
|
|
Currently the IP of the counter_gnode is the hash of the public key of the
|
||
|
|
register node.
|
||
|
|
|
||
|
|
The public key is part of the key pair used by the register_node to register
|
||
|
|
and update its hnames, therefore there should be only one key pair for each
|
||
|
|
node.
|
||
|
|
|
||
|
|
However, nothing prevents the register node to create multiple key pairs,
|
||
|
|
modify the ntkd code and use them at the same time.
|
||
|
|
With this technique, the register node can have a new counter_gnode for each
|
||
|
|
new generated key pair, avoiding in this way the registration limit.
|
||
|
|
|
||
|
|
The solution is to calculate the IP of the counter_gnode using the hash of the
|
||
|
|
IP of the register_node. This method was previously proposed but it was
|
||
|
|
discarded because every time the register_node changes IP it will have a new
|
||
|
|
counter_gnode. The new counter_gnode cannot know how many hnames the
|
||
|
|
register_node registered before so it will accept all the new requests, but in
|
||
|
|
reality, this is not a problem, in fact, the new counter_gnode can accept only
|
||
|
|
256 hnames, thus the limit is maintained.
|
||
|
|
}}}
|
||
|
|
|
||
|
|
----
|
||
|
|
related: ["Netsukuku RFC"]
|