IPv6 supports IPsec, but I think this proposal would be closer to Tor/I2P over IPv6.
For example, a client using an IPv6 ephemeral address, accessing a Tor hidden site, hosted on another client using an IPv6 ephemeral address, will both encrypt, and anonymize both endpoints, with a very short window for any de-anonymization attempts.
I2P will also scramble the whole connection over multiple circuits.
EDIT: reading closer the proposal, I see you only consider connections to public targets, with intermediate nodes keeping a cache of the circuit, and using a shortest path algorithm. It would seem to me that a client on IPv6 ephemeral using a HTTPS (with ECH) connection over Tor, would be safer than in this proposal. Choosing random intermediate nodes is a feature to reduce the chance of a single actor controlling all nodes on the path and being able to log the whole circuit.
I2P takes that a couple steps farther, adding more intermediate nodes, splitting the send and receive parts over different circuits, and expiring circuits periodically.
That name’s already taken.
Look into IPv6 ephemeral addresses.
Sounds good! But does it provide encryption tho?
IPv6 supports IPsec, but I think this proposal would be closer to Tor/I2P over IPv6.
For example, a client using an IPv6 ephemeral address, accessing a Tor hidden site, hosted on another client using an IPv6 ephemeral address, will both encrypt, and anonymize both endpoints, with a very short window for any de-anonymization attempts.
I2P will also scramble the whole connection over multiple circuits.
EDIT: reading closer the proposal, I see you only consider connections to public targets, with intermediate nodes keeping a cache of the circuit, and using a shortest path algorithm. It would seem to me that a client on IPv6 ephemeral using a HTTPS (with ECH) connection over Tor, would be safer than in this proposal. Choosing random intermediate nodes is a feature to reduce the chance of a single actor controlling all nodes on the path and being able to log the whole circuit.
I2P takes that a couple steps farther, adding more intermediate nodes, splitting the send and receive parts over different circuits, and expiring circuits periodically.