ID-Based Tripartite Key Agreement Protocol Sample Clauses

ID-Based Tripartite Key Agreement Protocol. In this subsection, we introduce a new tripartite key agreement protocol which is evolved from our two-party key agreement protocol. We assume that there are three participants A, B, and C, each of which have acquired its private key from ▇▇▇▇, ▇▇▇▇, and PKG3, respectively. We also assume that A, B, and C have chosen their ephemeral key a ∈ Z∗q(1) , b ∈ Z∗q(2) , and c ∈ Zq∗(3) , respectively. Message 1: A → B ,C: T = a P , T = a P ,W (2) (2) (2) (3)