A Secure Solution for USB Flash Drives Using FAT File System Structure

2010 ◽  
Author(s):  
Sun-Ho Lee ◽  
Kang-Bin Yim ◽  
Im-Yeong Lee
Keyword(s):  
File System ◽  
System Structure ◽  
Fat File System

Information Security in Data and Storage Grids through GS3

2013 ◽  
pp. 542-558
Author(s):  
Vincenzo Daniele Cunsolo ◽  
Salvatore Distefano ◽  
Antonio Puliafito ◽  
Marco Scarpa
Keyword(s):  
Data Storage ◽  
File System ◽  
Storage System ◽  
System Structure ◽  
Advanced Encryption Standard ◽  
Symmetric Cryptography ◽  
Secure Storage ◽  
File Access ◽  
System Service ◽  
And Storage

In grid computing infrastructures, the data storage subsystem is physically distributed among several nodes and logically shared among several users. This highlights the necessity of: (i) Availability for authorized users only, (ii) Confidentiality, and (iii) Integrity of information and data: in one term security. In this work we face the problem of data security in grid, by proposing a lightweight cryptography algorithm combining the strong and highly secure asymmetric cryptography technique (RSA) with the symmetric cryptography (Advanced Encryption Standard, AES). The proposed algorithm, we named Grid Secure Storage System (GS3), has been implemented on top of the Grid File Access Library (GFAL) of the gLite middleware, in order to provide a file system service with cryptography capability and POSIX interface. The choice of implementing GS3 as a file system allows to protect also the file system structure, and moreover to overcome the well-known problem of file rewriting in gLite/GFAL environments. This chapter describes and details both the GS3 algorithm and its implementation, also evaluating the performance of such implementation and discussing the obtained results.

scholarly journals Investigation of the computational complexity of methods for hiding information in cluster steganosystems

Radiotekhnika ◽  
2021 ◽  
pp. 77-87
Author(s):  
K.Yu. Shekhanin ◽  
S.V. Pshenichnaya ◽  
A.A. Kuznetsov
Keyword(s):  
Computational Complexity ◽  
3D Printing ◽  
File System ◽  
File Systems ◽  
Structural Features ◽  
Advantages And Disadvantages ◽  
Storage Media ◽  
Urgent Task ◽  
Fat File System ◽  
Computational Resources

Several methods of technical steganography are currently known. Hiding information in a model in 3D printing, this industry of hiding information has certain advantages and disadvantages, namely: the relatively high cost of creating a hidden message and the difficulty in reading the information. The second area of technical steganography is related to network traffic. In this method, information can be hidden, for example, in the header fields of protocols, or, for example, the transmission of a hidden message by sending packets in a certain sequence. There are also methods of hiding information in the structure of the file system, but the known methods are either capable of hiding a small amount of information, or have an insufficient level of resistance to detection. Thus, an urgent task is to develop a method for hiding information, which is able to hide more information and has a higher level of resistance to detection, with a satisfactory level of computational complexity. This paper presents methods of technical steganography based on the structural features of file systems in storage media, in particular, hiding information in the FAT file system by mixing clusters of certain key files (cover files). Methods of hiding information in the structure of a clustered file system by mixing clusters of cover files require significant computational resources. In this paper, research has been carried out on methods to increase computational efficiency in terms of the amount of required RAM, and the number of the required number of basic operations to hide a message.

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