Socket Programming Research Articles

DNA Based Cryptography and Steganography in Cloud Computing using Socket Programming

DNA Based Cryptography and Steganography in Cloud Computing using Socket Programming

Public Key Infrastructure (PKI) enhanced file transfer over secure sockets in Linux environment

Public Key Infrastructure (PKI) provides an intensive security mechanism for securing data communication over network. Generally transferring a file over a network is not secure if the network is wireless network or it consists of hubs as a networking device. Because then packets are broadcasts to every other computers over the network. A hub does not remember what all devices are attached to it. It just sends the packets to all its ports. Same in case of wireless networks the data packets are broadcasted. In general scenario the data packets are received by only those clients which are supposed to receive it, but it may be happen that a third party too, called “Sniffers” capture or “sniffed” the data packets during file transaction even if they are not supposed to accept it. In this work we try to enhance the security of file transfer by merging file transfer over secure socket along with Public Key Infrastructure (PKI). If we implement file transfer along with asymmetric key cryptography then there is another problem arises, known as man-in-middle attack. This attack exposes the problem of key validity, in which the attacker intercept the first message and sends its own public key to each. By doing this, attacker pretends to be the other person and hence can read the stream of decrypted traffic and can modify it. To provide privacy and security to file transfer we use Secure Socket Layer (SSL) a communication layer protocol.Keywords: PKI, Secure Sockets, Tunneling, Man-in-Middle Attack, Socket Programming, Packet Sniffer

The Design of Mobile Terminal Monitoring System Based on B/S Architecture

The mobile terminal monitoring method, combining with traditional monitoring technology, using B/S architecture technology, bring much convenience to equipment’s far-away monitoring, which being the hot spot of function expansion for monitoring system. This paper discusses the technical details of the mobile terminal monitoring system based on B/S architecture and the detection for mobile terminal and the controlling schema for equipment are studied in two parts respectively, among which B/S architecture mode is used to communicate with WEB server in the communication between mobile terminal and server and Socket programming is used to deliver the controlling message between WEB server and equipment.

Development of Client-Server Application by Using UDP Socket Programming for Remotely Monitoring CNC Machine Environment in Fixture Process

The use of computer technology in manufacturing industries can improve manufacturing flexibility significantly, especially in manufacturing processes; many software applications have been utilized to improve machining performance. However, none of them has discussed the abilities to perform direct machining. In this paper, an integrated system for remote operation and monitoring of Computer Numerical Control (CNC) machines is put into consideration. The integrated system includes computerization, network technology, and improved holding mechanism. The work proposed by this research is mainly on the software development for such integrated system. It uses Java three-dimensional (3D) programming and Virtual Reality Modeling Language (VRML) at the client side for visualization of machining environment. This research is aimed at developing a control system to remotely operate and monitor a self-reconfiguration fixture mechanism of a CNC milling machine through internet connection and integration of Personal Computer (PC)-based CNC controller, a server side, a client side and CNC milling. The performance of the developed system was evaluated by testing with one type of common protocols particularly User Datagram Protocol (UDP). Using UDP, the developed system requires 3.9 seconds to complete the close clamping, less than 1 second to release the clamping and it can deliver 463 KiloByte.

초등 수학 학습을 위한 소켓 기반 멀티플레이형 게임 서비스의 설계 및 구현

오락적 기능을 가지고 있는 교육용 컴퓨터 게임 서비스는 학생들이 학습에 대한 흥미를 높일 수 있도록 도와주는 매력적인 도구로 활용되고 있다. 특히, 수학 과목은 교육용 컴퓨터 게임 서비스가 가장 효과적으로 적용될 수 있는 대표적인 교과목이다. 기존에 개발된 게임 서비스는 대부분 단일 사용자 혹은 2명이 게임에 참여하는 형태이며 문제로 제시된 수식의 답을 단순히 찾는 방식으로 진행된다. 본 논문에서는 교육용 게임 서비스 요구 사항을 준수하고 특히 TCP/IP 소켓 프로그래밍 기술을 기반으로 여러 학습자가 동시에 게임에 참가 할 수 있는 멀티플레이형 게임 서비스를 설계 및 구현하였다. 또한, 수 감각의 신장을 유도하기 위해 단순히 수식의 답만 구하는 것이 아니라 학습자 스스로 여러 수식을 합성하고 선택 할 수 있도록 게임 규칙을 설계하여 적용하였다. 마지막으로 제안 게임 서비스를 교육용 게임 서비스 요구사항에 따라 비교하여 적합성을 확인하였다. The educational computer game service, due to its entertainment role, is a very attractive tool for students to raise their interests in learning. Especially mathematics, the most difficult subject for many students, is one of the typical subjects in which the educational computer game service can be efficiently applied. Most of the previous game services is for single or two learners. And learner only have to simply submit a solution for the proposed math expression in the game. In this paper a multi-player game service based on TCP/IP socket programming technique is designed and implemented to join in the game for multiple learners. In addition, we design a game rule to improve learners' number sense by letting them arrange various ways to solve the problem. Finally, using the requirements of educational game service, we evaluate the proposed game service and its usability.

태블릿 기기와 전자칠판 시스템 간의 연동 기술 연구

In this paper we have studied about the interconnection technology between tablet device and interactive white board(IWB) system. For this study we have implemented the board writing software for both tablet device and interactive white board system which has contents management, page turning and basic writing functions. Then we defined the data format to communicate the control information and board writing information between two devices, and implemented the communication module for the real-time bidirectional communication by using the Socket programming. The page turning or writing information on tablet device were transferred to the IWB system in real-time and vice versa. From the result of performance test based on the error rate, latency time and communication coverage we derived that our implementation software has good performance between tablet device and IWB system. Also from the result of field test we proved that our solution is well suitable to use in real education environment.

Design of Secure Transmission of Multimedia Data Using SRTP on Linux Platform

This paper aims for providing a viable solution for security in streaming media technology. Service providers do not want the end users to capture and duplicate streaming media data. Once captured data can be re-distributed to millions without any control from the source. Licensing issues also dictate the number of times end user may utilize the data. Encryption is not sufficient as it leaves the system vulnerable to duplication and recording after decryption. In this paper an attempt has been made to transmit digital multimedia data to multiple users. The transmission of the video/audio data has been attempted from one PC to another PC. While doing this, security considerations have to be taken care by using suitable encryption/decryption techniques. A research carried out on the different data transmission protocols reveals that the Secure Real Time Transport Protocol (SRTP) is one of the best available protocols. Hence the SRTP has been deployed in this project on Linux OS using socket programming. The code for the transmitter and the receiver is designed and developed around the SRTP library for transmission of multimedia data. The solution is illustrated by choosing an example of a video clip for transmission and reception. This model increasing the security of streaming media and adds a measure of integrity protection, but it is primarily intended to aid in replay preventions.

DESIGN OF AN INTELLIGENT NITROGEN INJECTION SYSTEM FOR FIRE SAFTEY OF POWER TRANSFORMER

Fire hazards occurring at power transformers and interconnecting transformer installations are the matter of serious concern. These may lead into serious consequences such as fatal/non-fatal accidents and loss of valuable assets. One Power transformer costs to Rs. 4 Crores/40 Million Dollars approximately. Moreover such types of incidences may cause fatal or non-fatal accidents to human being or stray animals. On number of occasions there is a sudden blasting of porcelain bushings . The pieces of porcelain are scattered in the switchyard with a velocity of bullet and cause damage to nearby equipments in the switchyard. The Nitrogen injection system is the traditional method of quenching fire hazards occurring at transformer installations . It is desired that reporting of such occurrences should be as quick as possible. This paper suggests a novice method for communication of such occurrences based on client-server interaction by connecting it to the traditional Nitrogen injection system. The proposed communication system is based on the notion of client server communication. Server is the process that is offering some service on receipt of request from the client. Client is the process that requests server to provide service. The socket programming based technique is found to be an effective tool for quick communication of such incidences on CMS client , smart phones and ESR terminals. It is possible to implement the proposed system on existing client-server network used for transmission of ABT data from substation/consumer installation to the Central Monitoring System. The Java embedded system can be developed as a dedicated hardware for proposed Client –server Association.

Security Enhancement in GSM using A3 algorithm

The GSM (Global System for Mobile Communications) is widely used cellular standard in the world. Recently, the mobile industry has experienced an extreme increase in the number of its users. Thus the GSM network with the greatest worldwide number of users succumbs to several security vulnerabilities. Security is a burning and intelligent issue. GSM security flaws have been identified several years ago. Many algorithms are used for making the GSM secure. The algorithms mainly used are A3, A5 and A8 algorithms. Algorithm A3 is used for authentication, A5 is used for encryption, and A8 is used for the generation of a cipher key. This paper presents an enhanced scheme of A3 algorithm to improve the level of security provided by the GSM. Proposed scheme is implemented at some level and analyzed thoroughly to show that the proposed scheme provides better security in the GSM. The above said algorithm is implemented using C#.NET in Microsoft Visual Studio 2012 with the help of socket programming. In this paper, encryption is introduced in the Authentication phase during the A3 algorithm of the GSM security.

An ARM-based debugging system for multi-pole array acoustic logging tools

This paper presents a debugging system for multi-pole array acoustic logging (MPAL) tools. The debugging system proposed in this study can debug the MPAL tool system, sub-system and local electronics. In the test equipment, we have used principal and subordinate structures, and interconnected the host computer and the front-end machine via Ethernet. The front-end machine is based on the ARM7 (advanced reduced instruction set computing (RISC) machine) technique, the processor of which runs an embedded operating system, namely, uClinux OS. We have analyzed the system telecommunication, human-machine interface circuit, transmitter mandrel interface circuit, receiver mandrel interface circuit, and board-level test interface circuit. The software used in the system consists of the embedded front-computer software and the host application software. We have explained in detail the flow chart of the boot loader in the embedded front-computer software. The host application software is composed of four application subroutines, which match with the functional modules of the system hardware. A net communication program based on the server/client mode is implemented by means of socket programming and multi-thread programming. Test results indicate that the data transmission rate of the system is higher than 1 MB/s, which completely meets the current requirements of the data transmission rate between the tool system and the wireline telemetry device. Application of the debugging system, which includes multiple level test methods, shows that the proposed system can fully meet the test requirements of MPAL at various levels.

A Kind of Method of Socket Programming Combining MATLAB and VB Based on COM Component

This paper proposes a kind of method of socket programming combining matlab and VB based on COM component aimed at socket programming. An example has been illustrated to declare the application of this method. It shows user-friendly graphics interface applied in VB, and graphic display in matlab.

Moodle Mobile Notifier

E-learning management systems (eLMS) are increasingly used as online communication platform between students and teachers in traditional, distance and open learning educational institutions. Moodle [10] is the most used open-source e-LMS platform with around 68 million users being served worldwide [9]. This serverside application can be accessed via a web browser, on any computer or Internet-enabled hand-held device (smart phone, tablet, etc.). However, this system has three limitations: first, the lack of synchronization between client and server applications, in other words between posting (server side) and viewing (client side) the information. The second limitation is that students cannot easily differentiate between newly and previously seen information. This is because most of the Moodle posts are not tagged with dates (except news and messages). The third limitation arises specifically when the Moodle server is accessed from a hand-held device using mobile telecommunication networks where bandwidth is considered as a scarce resource (low data rates and limited download/upload quotas). This limitation is caused by the ”useless” exchange of high amount of data to load all page contents even if no new information has been posted. The above listed limitations have negative impact on the tutor-student communication when eLMS platforms are used. This article proposes a system based on a three-tier architecture named Mobile Moodle Notifier (MMN) to overcome these limitations: the first tier is a mobile application (built on Google Android operating system [3]) that communicates with Moodle using low-level programming (socket programming) in order to reduce the bandwidth and download data consumption. The second tier is a server-side application that feeds the users (mobile application) with newly posted information from the third tier, which is the extended - Moodle database. Performance tests show a 50 times faster execution time and 300 times less download data consumption on average using MMN compared to accessing Moodle via a regular web browser.

Implementation of Ecc Using Socket Programming In Java

Elliptic Curve Cryptography (ECC) has attracted the attention of researchers and developers as it has got robust mathematical structure and higher security compared to algorithms like RSA (Rivest Adleman and Shameer Public key Algorithm). It increases the security compared to RSA or at least give comparable security with lesser key size than RSA. This research shows the implementation of ECC algorithm on a data that is sent from one computer device to another connected through LAN using socket programming in Java.

LTE Radio Resource Management Conformance Testing: Exploration and Implementation

LTE is an evolution of 3G technology which possesses 100Mb/s data downloading capability. The technology of LTE is progressive and puts forward stricter requirements for terminals. All the LTE wireless terminals must pass the Radio resource Management (RRM) conformance testing before entering into the market. This paper first dissected TTCN-3 test system and RRM testing structure for the purpose of designing RRM testing model. The testing model proposed in this paper realized the equal data exchange between test system (TS) and system under test (SUT) in application layer, and thus solved a big problem in constructing test platform of RRM testcases. Then comes the most difficult tasks: develop RRM testcases, system adapter (SA) and codec (CD). Among the tasks, RRM testcases are developed based on the test suite released by European Telecommunication Standards Institute (ETSI). Important runtime testing processes including Authentication and Key Agreement (AKA) process, preamble transfer process and cell reselection process are dissected in detail for the purpose of programming. SA is developed according to TRI specification using socket programming. CD is developed according to TCI specification.. On the basis of massive practical work, the implementation of RRM conformance testing is shown. Index Terms—Radio resource management, LTE, TTCN-3, AKA, Conformance testing

A Study of Robot Platform Based on WiFi Remote Control

In order to complete the complex operation in the dangerous environment and improve the efficiency and accuracy of industrial production. WiFi based remote control system platform is composed by the controlled mobile robot and control terminal such as PC. They communicate with each other through wireless network. The mobile robot constructs of four wheel drive. Microcontroller, sensor, wireless routing module, serial server and network camera are in the robot. Control terminal includes PC, control handle and other equipments. Using a proven and reliable wireless bridge, each network device can realize network communication with others. Based on the TCP/IP protocol, using socket programming technology, data communication can be achieved. Video capture uses the network camera. Through the test of the platform, bilateral operation with real-time haptic and video feedback are achieved. At the same time according to the real-time environmental information feedback, control terminal realizes the effective remote monitoring in the controlled end.

Design and Implementation of a Reconfigurable Mobile Game Controller on Smartphone

Expansion of games industry came in modern life, accompanied with innovative features in a game controller. Nowadays mobile industry is booming with the expansion of the variety of novel technologies, such as the use of 3D accelerometer sensors, high resolution cameras, the capability of connecting to wireless networks and so on. Therefore, a smartphone can be added with the game control functions to become a mobile game controller. In this paper, we propose the design and implementation of making a mobile phone as a game controller using User Datagram Protocol socket programming. This system is developed by Java 2 Standard Edition and Google Android Software Development Kits which has already provided sensor and multi-touch APIs. We successfully realize a reconfigurable mobile game controller on a mobile smartphone to interact with the existing digital games by mapping control functions on the server. Acceptable performance is shown to validate the effectiveness of our solution.

Multiplexed Chat Application

Multiplexing in socket programming is the capability of handling input and output from different I/O channels. we can multiplex UDP and TCP sockets to build multiplexed chat application UDP is a connectionless transport layer protocol. Since TCP doesn't provide the feature of Multicasting UDP is a widely used protocol to implement it. UDP's stateless nature is useful for servers that answer small queries for large number of clients. Socket network programming is one of the most popular technologies used to build a chat application and establishing network communication between systems. Socket programming helps to implement the bottom level of network communication, using Application Programming Interface (API). In this paper we propose a method to make a chat room using socket based on User Datagram Protocol (UDP) which enables the feature of acknowledgments after every message sent and poll system call[1]. It is equivalent to a dedicated chat server having a Server and n number of Clients. After client and server set up to connect, you can achieve many machines to communicate through peer to peer communication, multicasting and File sending. During communication taking place there might be different system and network failures occurring, which we have discussed and proposed a convenient solution for that.

Streaming Media Technology in the Fire Communication

This article describes the real-time transmission of streaming media technology in the Fire Communication. Paper focuses on three important processes of network transmission: socket programming, network communication protocol and buffer control.

Developed Java Software For Switching Secured Short Message Service (SMS)

This work implements a software based SMS switching system using GLOBACOM and MTN as network carriers. JAVA programming language with focus on socket programming will be used for the software development. The application client, which is the portion that runs on the mobile phone, uses Java macro Edition, while the server section involved in the switching uses Java Servlet. When tested on the windows 7 operating system using oracle and the SUN mobile phone simulators, there was quick response and transmission of the SMS text from one end to the other. The application was similarly simulated on the UNIX based operating system such as Linux, and Solaris. There was high level of success on the simulation showing that the results are reliable. However the results could only handle up to 100 characters per SMS and a 64 bit encryption technique was used.

Research of Efficient C/S Model Based File Transfer Method

Abstract The one-to-multiple file transfer problem has not been solved under the Linux system. In this paper, we take socket programming to accomplish Client/Server model based file transfer system and develop efficient software which not only support multiple clients and files transferring simultaneously, but also support transmission resuming from breakpoint. Our research focuses on solving the multi-thread concurrency, transmission resuming from breakpoint, thread pool, buffer queue and other aspects of problem. Our work is the basic foundation of FTP servers, file transfer software in local area network and large-scale examination system, etc.