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by gpsx 1719 days ago
I get your point that a node in the network can transfer a different packet. But I think people will have to be more creative with the protocol. For example, other nodes can hear both your transmission and next hop and can detect the packet was changed. I'm not sure you could make it 100% reliably, but the network could be self policing. Hopefully it would be one of those things that doesn't work in theory, only in practice. (And if not, then the rules would have to be updated.)
1 comments

Signing packets is not a new idea.

The problem still is that you have no way to authenticate on any layer above the hardware.

Ham radio as is is stuck in the 1960s which given the age of the people on it isn't really surprising.