Symmetric

Asymmetric

Group Broadcast

Connection

Three-way handshake between two nodes, plus message for sharing pseudonyms

Diffie-Helman between each pair of nodes.

Three-way handshake between two nodes, plus message for sharing pseudonyms

Messages

Single encrypted message for all neighbors

One encrypted message for each neighbor

Single encrypted message for all neighbors.

Revocation

Single encrypted message for all neighbors

One encrypted message for each neighbor

Single encrypted message for all neighbors.