Removable Storage Devices Research Articles

AUTOMATED DEVICE PARTS TRANSPORTATION SYSTEM IN THE CONDITIONS OF MEDIUM-SERIES PRODUCTION

The article analyzes previous research and publications on the development and application of various types of automated transport carts used in serial production, from which a conclusion is drawn about the need to develop an automated transport cart that can be used in instrument manufacturing and which will increase the productivity of the transport system.
 After conducting the analysis, the main element of the automated transportation system was developed, which is an automated transport cart mounted on mecanum wheels, which ensure its all-directional movement, without changing the orientation in space or its change regardless of the direction of movement, with two on-board manipulators that have removable gripping devices, and an individual removable storage device. Changeable elements increase the flexibility of the automated cart, because this feature allows the cart to be adapted to a large number of various technological processes. With the help of the CAD system, a three-dimensional model of the schematic design of the automated transport cart was developed, which takes into account all its important elements, as well as a detailed model of the mecanum wheels, designed specifically for the design of the cart.
 Using the parameters of the developed automated transport cart, the kinematics of the cart were calculated and formulas for solving the forward and inverse kinematics problem were determined, as well as the algorithms of the cart operation were developed, which describe each cycle performed by the cart at each workplace. Based on formulas for solving kinematics problems, formulas and methods for leveling spatial errors that occur during movement from one point to another are defined, as well as functions for optimizing the process of moving an automated transport cart are defined, and how optimization affects performance is determined.

A layered Y(III)-viologen framework for efficient detection of nitrofurazone

Two-dimensional (2D) materials as sensors show the unique advantage in detection because of the functional sites on their surface are easier to contact with analytes. Based on the Hard-Soft-Acid-Base theory, a nitrogen-rich metal–organic framework, [Y3(ipbp)4(HCOO)4(H2O)2]·NO3∙8.5H2O (Y-MOF) was synthesized by solvothermal reactions of a viologen ligand bromide 1-(3,5-isophthalic acid)-4,4′-bipyridine (H2ipbpBr) and Y3+ ions. It shows a 2D layered structure in which these uncoordinated pyridine groups of ipbp− hang on both sides of the layer as Lewis basic sites and exhibits excellent chemical stability in aqueous solutions within a pH range from 1 to 13. Fluorescent experiment indicates that Y-MOF possesses a high sensitivity for nitrofurazone (NFZ) with a low detection limit of 0.77 ​μg/mL and a high quenching constant of 1.36 ​× ​104 ​M−1. The cycling tests confirm that this MOF can be easily recovered and repeatedly used without an obvious performance loss. Furthermore, Y-MOF can detect NFZ in irrigation water, river water, and milk, in which satisfactory recoveries ranged from 94.70% to 109.85% with low Removable Storage Device (RSD) of 0.55%–2.76%. These results demonstrate that Y-MOF can be used as a potential sensor for the practical detection of NFZ in water environment and food matrix.

Fractional Dynamics of Stuxnet Virus Propagation in Industrial Control Systems

The designed fractional order Stuxnet, the virus model, is analyzed to investigate the spread of the virus in the regime of isolated industrial networks environment by bridging the air-gap between the traditional and the critical control network infrastructures. Removable storage devices are commonly used to exploit the vulnerability of individual nodes, as well as the associated networks, by transferring data and viruses in the isolated industrial control system. A mathematical model of an arbitrary order system is constructed and analyzed numerically to depict the control mechanism. A local and global stability analysis of the system is performed on the equilibrium points derived for the value of α = 1. To understand the depth of fractional model behavior, numerical simulations are carried out for the distinct order of the fractional derivative system, and the results show that fractional order models provide rich dynamics by means of fast transient and super-slow evolution of the model’s steady-state behavior, which are seldom perceived in integer-order counterparts.

A software agent enabled biometric security algorithm for secure file access in consumer storage devices

In order to resist unauthorized access, consumer storage devices are typically protected using a low entropy password. However, storage devices are not fully protected against an adversary because the adversary can utilize an off-line dictionary attack to find the correct password and/or run an existing algorithm for resetting the existing password. In addition, a password protected device may also be stolen or misplaced allowing an adversary to easily retrieve all the stored confidential information from a removable storage device. In order to protect the consumer's confidential information that has been stored, this paper proposes a mutual authentication and key negotiation protocol that can be used to protect the confidential information in the device. The functionality of the protocol enables the storage device to be secure against relevant security attacks. A formal security analysis using Burrows-Abadi- Needham (BAN) logic is presented to verify the presented algorithm. In addition, a performance analysis of the proposed protocol reveals a significantly reduced communication overhead compared to the relevant literature.

The spread of computer viruses under the influence of removable storage devices

Removable storage devices provide a way other than the Internet for the spread of computer viruses. However, nearly all previous epidemiological models of viruses considered only the Internet route of spread of viruses, neglecting the removable device route at all. In this paper, a new spread model of viruses, which incorporates the effect of removable devices, is suggested. Different from previous models, the epidemic threshold for this model vanishes. Moreover, the model admits a unique virose equilibrium, which is shown to be globally asymptotically stable. This result implies that any effort in eradicating viruses cannot succeed. By analyzing the respective influences of system parameters, a number of policies are recommended so as to restrict the density of infected computers to below an acceptable threshold.

Implementing Efficient Management and Security of Removable Storage by FVM

The security usage and management of removable storage devices has become a vital problem for enterprises and individuals. However, the required strict security policies for preventing unauthorized access to sensitive data raise the decrease of usability and flexibility. The main problem rests on the binding between security and application domains which stifles the initiative of the devices on themselves. This paper presents TRS, an efficient active architecture that binds a feather-weight virtual machine (FVM) to the removable storage device. It is designed based on an inside-bound smart card as well as the chip operation system (COS) which builds a trust channel between the FVM and the device. The FVM is set up by a trust chain and provides isolated usage environment for process accessing the device which prevents the obtained data from leakage. Finally, we implement a USB flash disk we call as UTrustDisk based on the hardware structure of Amordisk which is a security product of Nationz Technologies Inc. The results show the average overhead of read and write is 7.5% and 11.5%.

Solution of removable storage control based on file system filter driver

Concerning the access control security for removable storage,an access control method for removable storage based on File System(FS) filter driver was proposed.This method identified more than one removable storage device volumes and unique identifier for each volume,and controlled the volume according to its access.Additionally,through monitoring the process execution,this method prevented and killed Trojan.Using this method,the current popular removable storage devices were controlled to achieve a better result,enhancing the safety of using removable storage devices.

A driver-layer caching policy for removable storage devices

The growing popularity of flash memory is expected to draw attention to the limitations of file-system performance over flash memory. This work was motivated by the modular designs of operating system components such as bus and device drivers. A filter-driver-layered caching design is proposed to resolve the performance gap among file systems and to improve their performance with the considerations of flash memory characteristics. An efficient hybrid tree structure is presented to organize and manipulate the intervals of cached writes. Algorithms are proposed in the merging, padding, and removing of the data of writes. The effectiveness of the proposed approach is demonstrated with some analysis study of FAT-formatted and NTFS-formatted USB flash disks. The proposed cohesive caching policy was implemented as a filter driver in Windows XP/Vista for performance evaluation. In the experiments, a ten-fold or larger performance improvement was usually achieved when the cache size was only 64KB. Other substantial improvements were also observed in the experiments. For example, the proposed design enabled FAT-formatted and NTFS-formatted flash-memory devices to copy Linux image files 93% and 14% faster than conventional flash drives, respectively.

Stenog-Shell Framework for Anonymous File Exchange

Email systems and removable storage devices are the two most popular and user-friendly mechanisms of file exchange that provide privacy preserving and security for data communication. Most previous work has focused on mitigating external attacks on data communication by improving data encryption and integrity techniques. In this paper, we present a novel anonymization-based framework (Stenog-Shell) that focuses on internal attacks on breached emails and stolen removable storage devices (i.e., the attacks from the insiders of an organization who have full awareness and even access to the targeted data). We also propose a novel scheme to disguise the file's identity based on stenography. To evaluate our approach, we implemented our Stenog-Shell prototype and tested it with a realistic application in both emails and removable storage devices environments. Our results indicate that our Stenog-Shell prototype can effectively support several file formats with low memory usage and high performance.

The missing link in today's mobile security solutions

The number and diversity of mobile users, device types and access locations is increasing. It's no longer a question of “whether” to protect data, but “how” to protect data and how to control and manage its security. How does an organization achieve productivity and competitive advantage, while ensuring their data-at-rest remains secure, regardless of the type of user (employees, affiliates, and even customers), the type of computing or removable storage device, or the remote access location (a home, an airport, or Internet cafè)?