Biblio

With the development of Internet technology, software vulnerabilities have become a major threat to current computer security. In this work, we propose the vulnerability detection for source code using Contextual LSTM. Compared with CNN and LSTM, we evaluated the CLSTM on 23185 programs, which are collected from SARD. We extracted the features through the program slicing. Based on the features, we used the natural language processing to analysis programs with source code. The experimental results demonstrate that CLSTM has the best performance for vulnerability detection, reaching the accuracy of 96.711% and the F1 score of 0.96984.

In this paper we discuss the Internet of Things (IoT) by exploring aspects which go beyond the proliferation of devices and information enabled by: the growth of the Internet, increased miniaturization, prolonged battery life and an IT literate user base. We highlight the role of feedback mechanisms and illustrate this with reference to implemented computer enabled factory control systems. As the technology has developed, the cost of computing has reduced drastically, programming interfaces have improved, sensors are simpler and more cost effective and high performance communications across a wide area are readily available. We illustrate this by considering an application based on the Raspberry Pi, which is a low cost, small, programmable and network capable computer based on a powerful ARM processor with a programmable I/O interface, which can provide access to sensors (and other devices). The prototype application running on this platform can sense the presence of human being, using inexpensive passive infrared detectors. This can be used to monitor the activity of vulnerable adults, logging the results to a central server using a domestic Internet solution over a Wireless LAN. Whilst this demonstrates the potential for the use of such control/monitoring systems, practical systems spanning thousands of sites will be more complex to deliver and will have more stringent data processing and management demands and security requirements. We will discuss these concepts in the context of delivery of a smart interconnected society.

A novel optical fiber sensing network is proposed to eliminate the effect of multiple fiber failures. Simulation results show that if the number of breakpoint in each subnet is less than four, the optical routing paths can be reset to avoid those breakpoints by changing the status of optical switches in the remote nodes.

In the multi-cloud tenancy environments, Web Service offers an standard approach for discovering and using capabilities in an environment that transcends ownership domains. This brings into concern the ownership and security related to Web Service governance. Our approach for this issue involves an ESB-integrated middleware for security criteria regulation on Clouds. It uses an attribute-based security policy model for the exhibition of assets consumers' security profiles and deducing service accessing decision. Assets represent computing power/functionality and information/data provided by entities. Experiments show the middleware to bring minor governance burdens on the hardware aspect, as well as better performance with colosum scaling property, dealing well with cumbersome policy files, which is probably the situation of complex composite service scenarios.

In the information age of today, with the rapid development and wide application of communication technology and network technology, more and more information has been transmitted through the network and information security and protection is becoming more and more important, the cryptography theory and technology have become an important research field in Information Science and technology. In recent years, many researchers have found that there is a close relationship between chaos and cryptography. Chaotic system to initial conditions is extremely sensitive and can produce a large number of with good cryptographic properties of class randomness, correlation, complexity and wide spectrum sequence, provides a new and effective means for data encryption. But chaotic cryptography, as a new cross discipline, is still in its initial stage of development. Although many chaotic encryption schemes have been proposed, the method of chaotic cryptography is not yet fully mature. The research is carried out under such a background, to be used in chaotic map of the chaotic cipher system, chaotic sequence cipher, used for key generation of chaotic random number generators and other key problems is discussed. For one-dimensional chaotic encryption algorithm, key space small, security is not higher defect, this paper selects logistic mapping coupled to generate twodimensional hyper chaotic system as the research object, the research focus on the hyper chaotic sequence in the application of data encryption, in chaotic data encryption algorithm to make some beneficial attempts, at the same time, the research on applications of chaos in data encryption to do some exploring.