Currently computing information systems have entered a new stage and the security of systems is more and more serious, and the research on system security is developing in depth. This paper discusses neuro-computing a...Currently computing information systems have entered a new stage and the security of systems is more and more serious, and the research on system security is developing in depth. This paper discusses neuro-computing applications in security of network information systems.展开更多
In recent years cloud computing is the subject of extensive research in the emerging field of information technology and has become a promising business.The reason behind this widespread interest is its abilityto incr...In recent years cloud computing is the subject of extensive research in the emerging field of information technology and has become a promising business.The reason behind this widespread interest is its abilityto increase the capacity and capability of enterprises,having no investment for new infrastructure,no software license requirement and no need of any training.Security concern is the main limitation factor in the growth of this new born technology.The security responsibilities of both,the provider and the consumer greatly differ between cloud service models.In this paper we discuss a variety of security risks,authentication issues,trust,and legal regularity in cloud environment with consumer perspective.Early research focused only on technical and business consequences of cloud computing and ignored consumer perspective.Therefore,this paper discusses the consumer security and privacy preferences.展开更多
Quorum systems have been used to solve the problem of data consistency in distributed fault-tolerance systems. But when intrusions occur, traditional quorum systems have some disadvantages. For example, synchronous qu...Quorum systems have been used to solve the problem of data consistency in distributed fault-tolerance systems. But when intrusions occur, traditional quorum systems have some disadvantages. For example, synchronous quorum systems are subject to DOS attacks, while asynchronous quorum systems need a larger system size （at least 3f＋1 for generic data, and f fewer for self-verifying data）. In order to solve the problems above, an intrusion-tolerance quorum system （ITQS） of hybrid time model based on trust timely computing base is presented （TTCB）. The TTCB is a trust secure real-time component inside the server with a well defined interface and separated from the operation system. It is in the synchronous communication environment while the application layer in the server deals with read-write requests and executes update-copy protocols asynchronously. The architectural hybridization of synchrony and asynchrony can achieve the data consistency and availability correctly. We also build two kinds of ITQSes based on TTCB, i.e., the symmetrical and the asymmetrical TTCB quorum systems. In the performance evaluations, we show that TTCB quorum systems are of smaller size, lower load and higher availability.展开更多
基金This project was supported by the Foundation of State Key Lab for Software Engineering at Wuhan University.
文摘Currently computing information systems have entered a new stage and the security of systems is more and more serious, and the research on system security is developing in depth. This paper discusses neuro-computing applications in security of network information systems.
文摘In recent years cloud computing is the subject of extensive research in the emerging field of information technology and has become a promising business.The reason behind this widespread interest is its abilityto increase the capacity and capability of enterprises,having no investment for new infrastructure,no software license requirement and no need of any training.Security concern is the main limitation factor in the growth of this new born technology.The security responsibilities of both,the provider and the consumer greatly differ between cloud service models.In this paper we discuss a variety of security risks,authentication issues,trust,and legal regularity in cloud environment with consumer perspective.Early research focused only on technical and business consequences of cloud computing and ignored consumer perspective.Therefore,this paper discusses the consumer security and privacy preferences.
基金supported by the National Natural Science Foundation of China (60774091)
文摘Quorum systems have been used to solve the problem of data consistency in distributed fault-tolerance systems. But when intrusions occur, traditional quorum systems have some disadvantages. For example, synchronous quorum systems are subject to DOS attacks, while asynchronous quorum systems need a larger system size （at least 3f＋1 for generic data, and f fewer for self-verifying data）. In order to solve the problems above, an intrusion-tolerance quorum system （ITQS） of hybrid time model based on trust timely computing base is presented （TTCB）. The TTCB is a trust secure real-time component inside the server with a well defined interface and separated from the operation system. It is in the synchronous communication environment while the application layer in the server deals with read-write requests and executes update-copy protocols asynchronously. The architectural hybridization of synchrony and asynchrony can achieve the data consistency and availability correctly. We also build two kinds of ITQSes based on TTCB, i.e., the symmetrical and the asymmetrical TTCB quorum systems. In the performance evaluations, we show that TTCB quorum systems are of smaller size, lower load and higher availability.
基金国家自然科学基金项目(62202090,62173101)辽宁省博士启动基金(2022-BS-077)+3 种基金中央高校基本科研业务费(N2417006)辽宁网络安全执法协同创新中心课题(XTCX2024-015)资助by Liaoning Province Natural Science Foundation Medical-Engineering Cross Joint Fund under Grant 2022-YGJC-24by the Fundamental Research Funds for the Central Universities under Grant N2217009.
