对目前分布式能源交易中面临的高频率,复杂交易存在的安全性,交易成本高与交易信任难等问题,分析现有区块链技术与分布式能源交易的优缺点,提出基于区块链技术改进DPoS (Delegated Proof of Stake,委托权益证明)共识机制的分布式能源交...对目前分布式能源交易中面临的高频率,复杂交易存在的安全性,交易成本高与交易信任难等问题,分析现有区块链技术与分布式能源交易的优缺点,提出基于区块链技术改进DPoS (Delegated Proof of Stake,委托权益证明)共识机制的分布式能源交易应用与架构。通过基于动态激励信任度的委托权益证明(DPoS),并辅以信任度模型和奖惩机制对节点进行综合的评价。通过算例仿真分析对比,提出的改进DT-DPoS (Dynamic Trust-Delegated Proof of Stake)算法可以提高节点的积极性,增强了剔除恶意节点的效率,维护了系统的安全性与稳定性。展开更多
Because the node of vehicular ad-hoc networks has the characteristics of high mobility and encounter temporary, a trust management between the nodes in the routing process becomes more difficult. To solve this problem...Because the node of vehicular ad-hoc networks has the characteristics of high mobility and encounter temporary, a trust management between the nodes in the routing process becomes more difficult. To solve this problem, this paper proposes a new trusted routing protocol in VANET based on GeoDTN+Nav by using trust management model of Bayesian and the three opportunistic routing forwarding models, which includes four steps of the routing initialization, the routing discovery, the trusted routing establishment and the routing deletion. The proposed protocol not only improves the security of routing, but also has the lower time complexity. Besides, experimental results and analysis show that the protocol has achieved good performance in the removal ratio of malicious nodes, correct reception ratio of packet and the message payload.展开更多
文摘对目前分布式能源交易中面临的高频率,复杂交易存在的安全性,交易成本高与交易信任难等问题,分析现有区块链技术与分布式能源交易的优缺点,提出基于区块链技术改进DPoS (Delegated Proof of Stake,委托权益证明)共识机制的分布式能源交易应用与架构。通过基于动态激励信任度的委托权益证明(DPoS),并辅以信任度模型和奖惩机制对节点进行综合的评价。通过算例仿真分析对比,提出的改进DT-DPoS (Dynamic Trust-Delegated Proof of Stake)算法可以提高节点的积极性,增强了剔除恶意节点的效率,维护了系统的安全性与稳定性。
文摘Because the node of vehicular ad-hoc networks has the characteristics of high mobility and encounter temporary, a trust management between the nodes in the routing process becomes more difficult. To solve this problem, this paper proposes a new trusted routing protocol in VANET based on GeoDTN+Nav by using trust management model of Bayesian and the three opportunistic routing forwarding models, which includes four steps of the routing initialization, the routing discovery, the trusted routing establishment and the routing deletion. The proposed protocol not only improves the security of routing, but also has the lower time complexity. Besides, experimental results and analysis show that the protocol has achieved good performance in the removal ratio of malicious nodes, correct reception ratio of packet and the message payload.