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