Paper 3: On Ends-to-Ends Encryption, Xxxxxxx Xxxx Sample Clauses

Paper 3: On Ends-to-Ends Encryption, Xxxxxxx Xxxx. Xxxxxx, Xxx Xxxxxxx, Xxxx Xxxxxxx, Xxx Xxxxxxxx and Xxxxx Xxxxxx [3] This paper also proposes a tree-based group key exchange protocol, but fo- cuses on post-compromise security property. A protocol between Xxxxx and Xxx provides post-compromise security if Xxxxx has security guarantee about communication with Bob, even if Bobs secrets have already been compromised. In a protocol that does not provide post-compromise security, it is possi- ble for an adversary who compromised one participant to be able to intercept group messages indefinitely. This protocol can be seen in two phases. First, the initiator of the group creates the tree and computes the keys allowing the other members to xx- xxxxxxx the group key. Then, each member can update its key. Thus, this paper can be considered as an extension of the previous ones because it describes mechanisms that can be added to the Xxxxxx-Xxxxxxx tree constructed as presented in the first two papers.