DPTSV:A Dynamic Priority Task Scheduling Strategy for TSS Deadlock Based on Value Evaluation  

作　　者：ZHAO Bo XIANG Shuang AN Yang TAO Wei 

机构地区：[1]School of Computer Science,Wuhan University [2]Key laboratory of Aerospace Information Security and Trusted Computing Wuhan University,Ministry of Education

出　　处：《China Communications》2016年第1期161-175,共15页中国通信（英文版）

基　　金：supported by the State Key Program of National Natural Science Foundation of China(Grant No.91118003);the National Natural Science Foundation of China(Grant No.61173138,61272452,61332019);the National Basic Research Program of China("973"Program)(Grant No.2014CB340600);the National High-Tech Research and Development Program of China("863"Program)(Grant No.2015AA016002)

摘　　要：This paper analyzes the threat of TCG Software Stack(TSS)/TCM Service Module(TSM) deadlock in multi-user environment such as cloud and discusses its causes and mechanism.In addition,this paper puts forward a dynamic priority task scheduling strategy based on value evaluation to handle this threat.The strategy is based on the implementation features of trusted hardware and establishes a multi-level ready queue.In this strategy,an algorithm for real-time value computing is also designed,and it can adjust the production curves of the real time value by setting parameters in different environment,thus enhancing its adaptability,which is followed by scheduling and algorithm description.This paper also implements the algorithm and carries out its performance optimization.Due to the experiment result from Intel NUC,it is shown that TSS based on advanced DPTSV is able to solve the problem of deadlock with no negative influence on performance and security in multi-user environment.This paper analyzes the threat of TCG Software Stack（TSS）/TCM Service Module（TSM） deadlock in multi-user environment such as cloud and discusses its causes and mechanism.In addition,this paper puts forward a dynamic priority task scheduling strategy based on value evaluation to handle this threat.The strategy is based on the implementation features of trusted hardware and establishes a multi-level ready queue.In this strategy,an algorithm for real-time value computing is also designed,and it can adjust the production curves of the real time value by setting parameters in different environment,thus enhancing its adaptability,which is followed by scheduling and algorithm description.This paper also implements the algorithm and carries out its performance optimization.Due to the experiment result from Intel NUC,it is shown that TSS based on advanced DPTSV is able to solve the problem of deadlock with no negative influence on performance and security in multi-user environment.

关 键 词：TCG software stack/TCM service module deadlock multi-user trusted platform module real-time value 

分 类 号：TP393.01[自动化与计算机技术—计算机应用技术]