Security analysis of the Raspbian Linux operating system and its settings to increase resilience against attacks via network interface

Telegram and Viber are the most popular mobile messengers nowadays. Unlike other products, such as WhatsApp or Facebook Messenger, these messengers allow their users to restrict access to messages stored on the device − in Telegram it is access protection using a PIN code, in the Viber there is hidden chat functionality, also protected with a PIN code. This article presents a practical attack that allows to bypass the security functionalities implemented by the developers of both solutions. The paper presents the methods to increase the security of the mentioned software in a way that it can be implemented in the Android operating system. Keywords: Telegram, Viber, cryptography, Android, instant messenger.

Download Full-text

SafeCandy: System for security, analysis and validation in Android

Sistemas y Telemática ◽

10.18046/syt.v13i35.2154 ◽

2015 ◽

Vol 13 (35) ◽

pp. 89-102 ◽

Cited By ~ 2

Author(s):

Sebastián Londoño ◽

Christian Urcuqui ◽

Manuel Fuentes Amaya ◽

Johan Gómez ◽

Andrés Navarro Cadavid

Keyword(s):

Operating System ◽

Mobile Devices ◽

Security Analysis ◽

Threat Detection ◽

Malicious Software ◽

Static And Dynamic Analysis ◽

Security Controls ◽

Android Applications ◽

Google Play ◽

New System

Android is an operating system which currently has over one billion active users for all their mobile devices, a market impact that is influencing an increase in the amount of information that can be obtained from different users, facts that have motivated the development of malicious software by cybercriminals. To solve the problems caused by malware, Android implements a different architecture and security controls, such as a unique user ID (UID) for each application, while an API permits its distribution platform, Google Play applications. It has been shown that there are ways to violate that protection, so the developer community has been developing alternatives aimed at improving the level of safety. This paper presents: the latest information on the various trends and security solutions for Android, and SafeCandy, an app proposed as a new system for analysis, validation and configuration of Android applications that implements static and dynamic analysis with improved ASEF. Finally, a study is included to evaluate the effectiveness in threat detection of different malware antivirus software for Android.

Download Full-text

Operating System Kernel Data Disambiguation to Support Security Analysis

Network and System Security - Lecture Notes in Computer Science ◽

10.1007/978-3-642-34601-9_20 ◽

2012 ◽

pp. 263-276 ◽

Cited By ~ 1

Author(s):

Amani S. Ibrahim ◽

John Grundy ◽

James Hamlyn-Harris ◽

Mohamed Almorsy

Keyword(s):

Operating System ◽

Security Analysis

Download Full-text

Controller for Network Interface Card on FPGA

International Journal of Reconfigurable and Embedded Systems (IJRES) ◽

10.11591/ijres.v1.i2.pp55-58 ◽

2012 ◽

Vol 1 (2) ◽

pp. 55

Author(s):

Suchita Kamble ◽

N. N. Mhala

Keyword(s):

Operating System ◽

Data Transfer ◽

Direct Memory Access ◽

Main Memory ◽

Network Interface ◽

Medium Access ◽

Hardware Interface ◽

Underlying Network ◽

Peripheral Component Interconnect ◽

Network Interfaces

The continuing advances in the performance of network servers make it essential for network interface cards (NICs) to provide more sophisticated services and data processing. Modern network interfaces provide fixed functionality and are optimized for sending and receiving large packets. Network interface cards allow the operating system to send and receive packets through the main memory to the network. The operating system stores and retrieves data from the main memory and communicates with the NIC over the local interconnect, usually a peripheral component interconnect bus (PCI). Most NICs have a PCI hardware interface to the host server, use a device driver to communicate with the operating system and use local receive and transmit storage buffers. NICs typically have a direct memory access (DMA) engine to transfer data between host memory and the network interface memory. In addition, NICs include a medium access control (MAC) unit to implement the link level protocol for the underlying network such as Ethernet, and use a signal processing hardware to implement the physical (PHY) layer defined in the network. To execute and synchronize the above operations NICs also contents controller whose architecture is customized for network data transfer. In this paper we present the architecture of application specific controller that can be used in NICs.

Download Full-text

The Network Security Analysis of Linux Operating System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.998-999.1274 ◽

2014 ◽

Vol 998-999 ◽

pp. 1274-1277

Author(s):

Yong Jun Cui ◽

Yong Hua Zhang

Keyword(s):

Operating System ◽

Network Security ◽

Security Analysis ◽

Point Of View

This article argues that in terms of security flaws Linux operating system. On this basis, it focuses on improving Linux security in two ways, one is the use and management of Linux from a security point of view, the second is upgrading the system, and improves their security thoroughly.

Download Full-text

Design and Implementation of Embedded Network Interface Based on ATmega128

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.556-562.6038 ◽

2014 ◽

Vol 556-562 ◽

pp. 6038-6041

Author(s):

Fu Yang Xia

Keyword(s):

Operating System ◽

Network Interface ◽

Module Structure ◽

Design And Implementation ◽

The Core ◽

Tcp Protocol ◽

Embedded Network ◽

And Function ◽

Ethernet Interface

The solution of Ethernet interface based on the core of ATmega128 and its architecture of hardware was illustrated in this paper. The operating system of μC/OS-II was transplanted to the system and the improvement of TCP/IP protocol was implemented. The paper dwelled on the module structure of TCP protocol which based on message and function of μC/OS-II. Finally, the test of systemic performance was presented.

Download Full-text