Encryption protocol used by the Lightning Network

BITCOIN not CRYPTO! Unlike the Bitcoin P2P network, every node in the Lightning Network is identified by a unique public key which serves as its identity. By default, this public key is used to end-to-end encrypt all communication within the network.  " Crypto " short for ' encrypt " &/or  " Encryption " so I repeat BTC not Crypto.  No Sidechains. No Scaling. No Contracts. BITCOIN not CRYPTO!