Owing to the rapid increase in the interchange of text information through internet networks,the reliability and security of digital content are becoming a major research problem.Tampering detection,Content authentica...Owing to the rapid increase in the interchange of text information through internet networks,the reliability and security of digital content are becoming a major research problem.Tampering detection,Content authentication,and integrity verification of digital content interchanged through the Internet were utilized to solve a major concern in information and communication technologies.The authors’difficulties were tampering detection,authentication,and integrity verification of the digital contents.This study develops an Automated Data Mining based Digital Text Document Watermarking for Tampering Attack Detection(ADMDTW-TAD)via the Internet.The DM concept is exploited in the presented ADMDTW-TAD technique to identify the document’s appropriate characteristics to embed larger watermark information.The presented secure watermarking scheme intends to transmit digital text documents over the Internet securely.Once the watermark is embedded with no damage to the original document,it is then shared with the destination.The watermark extraction process is performed to get the original document securely.The experimental validation of the ADMDTW-TAD technique is carried out under varying levels of attack volumes,and the outcomes were inspected in terms of different measures.The simulation values indicated that the ADMDTW-TAD technique improved performance over other models.展开更多
In Industrial Control Systems (ICS), security issues are getting more and more attention. The number of hacking attacks per year is endless, and the attacks on industrial control systems are numerous. Programmable Log...In Industrial Control Systems (ICS), security issues are getting more and more attention. The number of hacking attacks per year is endless, and the attacks on industrial control systems are numerous. Programmable Logic Controller (PLC) is one of the main controllers of industrial processes. Since the industrial control system network is isolated from the external network, many people think that PLC is a safety device. However, virus attacks in recent years, such as Stuxnet, have confirmed the erroneousness of this idea. In this paper, we use the vulnerability of Siemens PLC to carry out a series of attacks, such as S7-200, S7-300, S7-400, S7-1200 and so on. We read the data from the PLC output and then rewrite the data and write it to the PLC. We tamper with the writing of data to achieve communication chaos. When we attack the primary station, all slave devices connected to the primary station will be in a state of communication confusion. The attack methods of us can cause delay or even loss of data in the communications from the Phasor Data Concentrator (PMU) to the data concentrator. The most important thing is that our attack method generates small traffic and short attack time, which is difficult to be identified by traditional detection methods.展开更多
针对现阶段软件定义网络(SDN)控制层流规则窜改攻击以及单点脆弱性问题,提出一种基于动态异构冗余的拟态安全控制器模型,通过分布式冗余架构以及一致性判决机制提高系统可靠性,利用调度机制实现系统动态性以及结合异构因素提高系统安全...针对现阶段软件定义网络(SDN)控制层流规则窜改攻击以及单点脆弱性问题,提出一种基于动态异构冗余的拟态安全控制器模型,通过分布式冗余架构以及一致性判决机制提高系统可靠性,利用调度机制实现系统动态性以及结合异构因素提高系统安全性,通过一致性容错算法(consistency and fault detection algorithm,CFDA)实现安全数据处理与错误检测,并提高控制器集群动态、可扩展性。仿真结果表明,对于控制器集群网络而言CFDA具有较低的通信复杂度,降低了节点冗余度要求;同时,冗余体的增加可以非线性降低系统被攻击成功概率,而适当的调度策略大大提高了系统安全率,因此拟态安全控制器机制能够有效提高攻击者攻击难度,增加系统安全可靠性。展开更多
基金funded by the Deanship of Scientific Research at Princess Nourah bint Abdulrahman University through the Research Groups Program Grant No.(RGP-1443-0051).
文摘Owing to the rapid increase in the interchange of text information through internet networks,the reliability and security of digital content are becoming a major research problem.Tampering detection,Content authentication,and integrity verification of digital content interchanged through the Internet were utilized to solve a major concern in information and communication technologies.The authors’difficulties were tampering detection,authentication,and integrity verification of the digital contents.This study develops an Automated Data Mining based Digital Text Document Watermarking for Tampering Attack Detection(ADMDTW-TAD)via the Internet.The DM concept is exploited in the presented ADMDTW-TAD technique to identify the document’s appropriate characteristics to embed larger watermark information.The presented secure watermarking scheme intends to transmit digital text documents over the Internet securely.Once the watermark is embedded with no damage to the original document,it is then shared with the destination.The watermark extraction process is performed to get the original document securely.The experimental validation of the ADMDTW-TAD technique is carried out under varying levels of attack volumes,and the outcomes were inspected in terms of different measures.The simulation values indicated that the ADMDTW-TAD technique improved performance over other models.
文摘In Industrial Control Systems (ICS), security issues are getting more and more attention. The number of hacking attacks per year is endless, and the attacks on industrial control systems are numerous. Programmable Logic Controller (PLC) is one of the main controllers of industrial processes. Since the industrial control system network is isolated from the external network, many people think that PLC is a safety device. However, virus attacks in recent years, such as Stuxnet, have confirmed the erroneousness of this idea. In this paper, we use the vulnerability of Siemens PLC to carry out a series of attacks, such as S7-200, S7-300, S7-400, S7-1200 and so on. We read the data from the PLC output and then rewrite the data and write it to the PLC. We tamper with the writing of data to achieve communication chaos. When we attack the primary station, all slave devices connected to the primary station will be in a state of communication confusion. The attack methods of us can cause delay or even loss of data in the communications from the Phasor Data Concentrator (PMU) to the data concentrator. The most important thing is that our attack method generates small traffic and short attack time, which is difficult to be identified by traditional detection methods.
文摘针对现阶段软件定义网络(SDN)控制层流规则窜改攻击以及单点脆弱性问题,提出一种基于动态异构冗余的拟态安全控制器模型,通过分布式冗余架构以及一致性判决机制提高系统可靠性,利用调度机制实现系统动态性以及结合异构因素提高系统安全性,通过一致性容错算法(consistency and fault detection algorithm,CFDA)实现安全数据处理与错误检测,并提高控制器集群动态、可扩展性。仿真结果表明,对于控制器集群网络而言CFDA具有较低的通信复杂度,降低了节点冗余度要求;同时,冗余体的增加可以非线性降低系统被攻击成功概率,而适当的调度策略大大提高了系统安全率,因此拟态安全控制器机制能够有效提高攻击者攻击难度,增加系统安全可靠性。
