Common use of Implementation Architecture Clause in Contracts

Implementation Architecture. TREE API is a group key agreement API that implements the cryptographic primitives of TGDH. It contains the following three function calls: – tree new user: called by any new member to generate its context. – tree merge req: called by every group member when a join/merge occurs. It identifies the sponsor unambigu- ously (as described in Section 5.6). It then removes all pairs on its key-path. If the caller is a sponsor, generates new secret share and computes all keys and bkeys on its key-path. This function returns an output token, which is then broadcast to the whole group.