Common Contracts
2 similar null contracts
Dynamic Group Key Agreement for Resource-Constrained Devices using BlockchainsAugust 19th, 2020
Abstract. Dynamic group key agreement (DGKA) protocols are one of the key security primitives to secure multiparty communications in decentralized and insecure environments while considering the instant changes in a communication group. However, with the ever-increasing number of connected devices, traditional DGKA protocols have perfor- mance challenges since each member in the group has to make several computationally intensive operations while verifying the keying mate- rials to compute the resulting group key. To overcome this issue, we propose a new approach for DGKA protocols by utilizing Hyperledger Fabric framework as a blockchain platform. To this end, we migrate the communication and verification overhead of DGKA participants to the blockchain network in our developed scheme. This paradigm allows a flexible DGKA protocol that considers resource-constrained entities and trade-offs regarding distributed computation. According to our perfor- mance analysis, participants with low
Dynamic Group Key Agreement for Resource-Constrained Devices using BlockchainsAugust 11th, 2020
Secret Key Query (querySK(·)). After the fault correction step, each participant Ui ∈ Ugrp performs following to query secret keys from each Uj ∈ Unet (CK1...N = CK1||CK2|| . . . ||CKN ).
