http://babei.i2p/i2p/i2pd-encrypted-leaseset.html
PSK or private DH
i2cp.leaseSetAuthType Authentication type for encrypted LeaseSet. 0 - no authentication(default), 1 - DH, 2 - PSK
i2cp.leaseSetClient.dh.nnn Client name:client's public DH in base64, for authentication type 1, nnn is integer
i2cp.leaseSetClient.psk.nnn Client name:client's PSK in base64, for authentication type 2, nnn is integer i2cp.leaseSetType = 可以取 1, 3, 5, 7 1 - LS (已弃用) 3 - LS2 (第二代...