https://www.bleepingcomputer.com/news/security/tor-switches-to-new-counter-galois-onion-relay-encryption-algorithm/
Tor has announced improved encryption and security for the circuit traffic by replacing the old tor1 relay encryption algorithm with a new design called...
torswitchesnewcountergalois
https://blog.torproject.org/introducing-cgo/
Tor is upgrading its relay encryption algorithm for improved security. In upcoming releases, Arti and Tor will both support a new encryption algorithm called...
countergaloisonionimprovedencryption