Group key management based on semigroup actions
This work addresses secure group communication for users needing distributed key management, but it appears incremental as it builds on existing protocols with specific enhancements.
The authors tackled group key management by developing protocols based on general semigroup actions, constructing keys in a distributed and collaborative way, with examples showing potential enhancements in security and communication overheads compared to existing protocols.
In this work we provide a suite of protocols for group key management based on general semigroup actions. Construction of the key is made in a distributed and collaborative way. Examples are provided that may in some cases enhance the security level and communication overheads of previous existing protocols. Security against passive attacks is considered and depends on the hardness of the semigroup action problem in any particular scenario.