Proposed Authenticated Dynamic Key Agreement Protocol Sample Clauses

Proposed Authenticated Dynamic Key Agreement Protocol. Dynamic key agreement consists of a key agreement protocol together with two additional algorithms, Insert and Delete. The procedure Insert enables a user to join a group. A user can leave a group by invoking the procedure Delete. In this subsection, we describe protocols for insertion and deletion for the above static tree-based authenticated protocol. Our protocol design makes an optimal use of the data precomputed in the procedure KeyAgreement. When a user joins or leaves a group, the structure of the key tree is disturbed and requires to be updated for any subsequent join or leave operation. Maintaining the tree structure of the key agreement protocol is a crucial part of our scheme. We refer this as the preservation of the structure of the procedure KeyAgreement. Suppose we have a keytree T of n users {1, 2, . . . , n} according to the key agreement of [5] with k = R(n) rounds. For the sake of easy description, we take the user set P = {1, . . . , n} instead of the set {U1, . . . , Un} and introduce some more notations. For 1 ≤ l ≤ k, let U (l) be the i-th user set at level l and s(l) be the
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Related to Proposed Authenticated Dynamic Key Agreement Protocol

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