ID 原文 译文
5204 网络的服务扩展能力是下一代网络的重大需求，也是网络服务模型技术发展的主要挑战。 The capability of providing network service extensibility is the major demand of next generation network, it isalso the main challenge of network service model technology.
5205 可扩展网络服务模型正是应网络发展的这一需求而提出的。 The extensible network service model was proposed in re-sponse to the demand of network development.
5206 概述了该服务模型的基本概念与原理； Firstly, an overview of the basic principles of the extensible network ser-vice model was expounded.
5207 从原理分析的角度对该服务模型的服务扩展能力进行了定性分析； And then, from the point of view of principle analysis, the service extension capability of theservice model was qualitatively analyzed.
5208 使用网络服务扩展能力的分析方法，从理论和网络实际应用 2 个角度选用实例对该服务模型的服务扩展能力的进行了定量分析。 Finally, using the analytic method of network service extensible capability, the service extension capability of the service model was quantitative analyzed from two perspectives of theory and practical application.
5209 由定性分析与定量分析结果可知，可扩展网络服务模型具有很好的服务扩展能力。 The qualitative analysis and the quantitative analysis show that the extensible network service model hasstrong service extensible capability.
5210 属性基加密因其细粒度访问控制在云存储中得到了广泛应用。 Attribute-based encryption (ABE) scheme is widely used in the cloud storage due to its fine-grained access control.
5211 在属性基加密方案中，每个属性可能同时被多个用户共享，因此如何实现属性级用户撤销且能够抵抗用户合谋攻击是当前面临的重要挑战。 Each attribute in ABE may be shared by multiple users at the same time. Therefore, how to achieve attribute-level user revo-cation is currently facing an important challenge.
5212 针对上述问题，提出了一种支持属性撤销的属性基加密方案，所提方案可以有效地抵抗撤销用户与未撤销用户的合谋攻击， To solve this problem,an attribute-based encryption scheme that supported the immediate attribute revocation was proposed. The scheme could achieve attribute-level user revocation and could effectively resist collusion attacks between the revoked users and the exist-ing users.
5213 同时，将复杂的解密计算外包给具有强大计算能力的云服务商，减轻了数据用户的计算负担。 At the same time, this scheme outsourced complex decryption calculations to cloud service providers with power-ful computing ability, which reduced the computational burden of the data user.