Proposal DOOR LOCKING SECURITY SYSTEM UING GSM

DOOR LOCKING SECURITY SYSTEM UING GSM
ABSTRACT
The main aim of this project and implimentation is to provide security at homes, offices etc. The system automatically locks the door as soon as it receives a predefined message from the user.
This project and implimentation uses the wireless communication, GSM. To receive the messages from the user mobile, we need a GSM modem. This modem will be interfaced to the microcontroller through serial interface. A modem provides the communication interface. It transports device protocols transparently over the network through a serial interface. A GSM modem is a wireless modem that works with a GSM wireless network. A wireless modem behaves like a dial-up modem. The main difference between them is that a dial-up modem sends and receives data through a fixed telephone line while a wireless modem sends and receives data through radio waves.
If the user is somewhere far from the main door and he wants to close the main door right from the place he is standing, he has to send a predefined message to the modem. The controlling unit will be fixed at the main door. The controlling unit contains the microcontroller and the GSM modem interfaced to it. The microcontroller continuously checks whether it has received any message from the modem.
When the user sends the predefined message to the modem, the modem receives the message and intimates the same to the microcontroller. The microcontroller retrieves this message from the modem by issuing certain AT and T commands to the modem. Thus, after receiving the message from the modem, the microcontroller automatically closes the door by rotating the stepper motor fixed to the door. This will be done perfectly without the involvement of any human.

[ Proposal ] DOOR LOCKING SECURITY SYSTEM UING GSM

DOOR LOCKING SECURITY SYSTEM UING GSM
ABSTRACT
The main aim of this project and implimentation is to provide security at homes, offices etc. The system automatically locks the door as soon as it receives a predefined message from the user.
This project and implimentation uses the wireless communication, GSM. To receive the messages from the user mobile, we need a GSM modem. This modem will be interfaced to the microcontroller through serial interface. A modem provides the communication interface. It transports device protocols transparently over the network through a serial interface. A GSM modem is a wireless modem that works with a GSM wireless network. A wireless modem behaves like a dial-up modem. The main difference between them is that a dial-up modem sends and receives data through a fixed telephone line while a wireless modem sends and receives data through radio waves.
If the user is somewhere far from the main door and he wants to close the main door right from the place he is standing, he has to send a predefined message to the modem. The controlling unit will be fixed at the main door. The controlling unit contains the microcontroller and the GSM modem interfaced to it. The microcontroller continuously checks whether it has received any message from the modem.
When the user sends the predefined message to the modem, the modem receives the message and intimates the same to the microcontroller. The microcontroller retrieves this message from the modem by issuing certain AT and T commands to the modem. Thus, after receiving the message from the modem, the microcontroller automatically closes the door by rotating the stepper motor fixed to the door. This will be done perfectly without the involvement of any human.

Network Security

Network Security

Data on the network is analogous to possessions of a person. It has to be kept secure from others with malicious intent. This intent ranges from bringing down servers on the network to using people's private information like credit card numbers to sabotage of major organizations with a presence on a network. To secure data, one has to ensure that it makes sense only to those for whom it is meant. This is the case for data transactions where we want to prevent eavesdroppers from listening to and stealing data. Other aspects of security involve protecting user data on a computer by providing password restricted access to the data and maybe some resources so that only authorized people get to use these,  and identifying miscreants and thwarting their attempts to cause damage to the network among other things.

The various issues in Network security are as follows :

1. Authentication: We have to check that the person who has requested for something or has sent an e-mail is indeed allowed to do so. In this process we will also look at how the person authenticates his identity to a remote machine.
2. Integrity: We have to check that the message which we have received is indeed the message which was sent. Here CRC will not be enough because somebody may deliberately change the data. Nobody along the route should be able to change the data.
3. Confidentiality: Nobody should be able to read the data on the way so we need Encryption
4. Non-repudiation: Once we sent a message, there should be no way that we can deny sending it and we have to accept that we had sent it.
5. Authorization: This refers to the kind of service which is allowed for a particular client. Even though a user is authenticated we may decide not to authorize him to use a particular service.

TOOLS FOR INFORMATION SECURITY ,cOMPUTEER,NETWORK

 TOOLS FOR INFORMATION SECURITY

 

 click here complete Lecture Notes: Computer Networks

Firewalls

Remember the good days when a firewall was something you found in the front of your Chevy. Well, in today’s high-tech world, a firewall serves the same purpose, but for a network. Much the same as a Firewall is put in a car to provide a point of resistance to a burning or hot engine, a firewall on a network performs the same type of functionality for a computer sys-tem.

There are three main types of firewalls:

1) A packet filter,

 2) A hybrid or

 3) A proxy. A packet filter firewall examines each IP packet crossing the net-work, and based upon a set of rules, either lets the packet through, or denies access.

A proxy firewall actually acts as a secure gateway between net-works.

   The proxy authenticates data and al-lows only specific information to enter or leave the secure side of the proxy. Often times, proxy servers are referred to as application level firewalls, protecting the network (inbound or outbound) depending on the specific application in use. Proxy firewalls are one of the most secure.

[ REPORT ] COMPUTER NETWORK

INTRODUCTION

Basic approach 

Identifying the assets,

Identifying theThreads

 NETWORK SECURITY THREATS AND ATTACKS

SECURITY MEASURES

DEVELOPING AN EFFECTIVE NETWORK SECURITY POLICY

DEVELOPING AN EFFECTIVE NETWORK SECURITY POLICY

A study reported by the U.S. General Accounting Office (GAO) (1996) found that the U.S. Department of Defense network computers are extremely vulnerable. A series of security attacks conducted by the Defense Information System Agency (DISA) revealed that of 38,000 attacks DISA could penetrate the protection and gain access to the network computers 65% of time. Of those successful attacks only 4% (988 attacks) were detected by the target organization. Furthermore, of those detected, only 27% (267 attacks) were actually reported to the appropriate security authority. Given the sophisticated computer network at the Department of Defense and the number of computer personnel involved, the statistics are alarming. The goal of network security is to provide maximum security with minimum impact on the user accessibility and productivity. The network

SECURITY MEASURES ,computer network

SECURITY MEASURES

1. Security Policy: Develop a security policy. This will limit liability exposure and is the basis for applying appropriate security to the enterprise telecommunications infrastructure.

2. Security Awareness: Implement a strong security awareness, training and education program.

3. Monitor Access: Know who, when, why and how users are accessing your systems.

4. Routine Backups: Routinely back up all systems, store backups off-site and test the backups.

5. Integrity Checks: Run system integrity checks and compare using off-line encrypted checksums.

[ computer network ] Identifying the assets,

Identifying the assets,

What am I trying to protect?

Part of a risk analysis involves identifying all things that need to be protected. Some things are obvious, like the various pieces of hardware or cardholder data. Others are apt to be overlooked, such as people who actually have access to the systems. It is essential to list all things that could be affected by a security problem or potential threat. A list of categories should include:

1. Data. Stored online, archived off-line, backups, audit logs, databases, in transit over a communication media, during execution, and during delivery (physical or otherwise) This can include cardholder data, merchant specific data, ACH files, contract information, rate information, contact information, etc.

2. Supplies. Paper, forms ribbons, magnetic media.

3. Hardware. Including CPUS, keyboards, terminals, terminal servers, routers, firewalls, disk drives, communication lines, printers, personal computers and laptops. This should include not only the hardware used for actual processing, but also the hardware used to view data and access the data. This might also include hardware systems used for access to the facilities and systems (to-kens or smart cards).

[ REPORT ] INTRODUCTION COMPUTER NETWORK

INTRODUCTION

Although the history of the Internet is relatively short, its growth has been dynamically explosive. The number of Internet users worldwide has grown from 95 million to 130 million in 1998, and it is projected that there will be 350 million users in the year 2003 (eMarketer, 1998). The Internet is a worldwide collection of networks that links together millions of computers by various means, such as modems, fiber optic lines, routers, and servers. It provides connections to businesses, the government, industries, educational institutions, and individuals.

 Each of these organizations has become increasingly dependent on networks and distributed computing and processing systems. Furthermore, because they possess a critical and integral asset of information, internetworking security and what measures to protect this information has become a major area of concern. In this report we will address the key concepts of network security, common network vulnerabilities, network security threats and attacks, security measures and tools, and the development of a network security policy and proper violation response plan.

A breach in network security could cost your company a great deal in lost productivity, lost data, repair work, and loss of confidence among customers, partners, and employees. But these damages are preventable. You just need a solid security strategy and a well-planned implementation. With the explosion of the public Internet and e-commerce, private computers and computer networks are increasingly vulnerable to damaging attacks. Hackers, viruses, vindictive employees, and even human error all represent clear and present dangers to networks. And all computer users, from

The most casual Internet surfers to large enterprises could be affected by network security breaches.

 With the rapid explosion of e-commerce and the Internet as a serious business tool, a lot of attention has been given to “information security.” Helping businesses securely manage information has become a multi-billion dollar industry. Companies such as Verisign®, Microsoft®, Cisco®, Oracle® and SUN Microsystems®, to name a few, all spend a significant amount of time and money developing their services with security in mind.

    .

  For purposes of this document, rather than describe what security is, we’ll discuss the needs that security should fill. We’ll address the need for physical security, back-ground checks, firewalls, access codes, to-kens and other methods all designed to protect one’s information. In general, the need for security can be summed up as follows

Now we talks about network security, what it is?

    Network security is an ongoing process; as technology progresses and your business evolves, it will be more important than ever to keep up with your changing security needs

“Protective measures to ensure the absence of intrusion or other damaging activity.” Benjamin Field – Securityfocus.com

Network security involves all activities that organizations, enterprises, and institutions undertake to protect the value and ongoing usability of assets and the integrity and continuity of operations. An effective network security strategy requires identifying threats and then choosing the most effective set of tools to combat them.



 With such a wide range of companies engaged in the information security business, it begs the question, “What exactly is security?” Security means different things to different people depending on their age, position within a company or access to “top secret” information.

The needs for security

1. Keep outsiders from entering the organization and gaining access to sensitive or private information. Access can be gained physically or virtually.

2. Prevent unauthorized information from leaving the premises.

3. Monitor and control internal employees’ access to information and systems.

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2. Background :MHSS)

2. Background - MHSS

2.1. GSM/GPRS Based Security System

Based on the IEEE802.11 standard, wireless home network is known as WiFi, which provides a medium for transferring media files [1]. However, it is high cost and high

International Journal of Smart Homepower consumption. Y. Zhao [2] has developed a low cost GSM/GPRS based wireless home security system which includes wireless security sensor nodes and a GSM/GPRS gateway [2-3]. It has the following features:

 (a) low cost, 

(b) low power consumption,

 (c) simple installation,

 (d) fast response and 

(e) simple user interface.

 In general, GSM modem acts as the interface between the users and the sensors nodes. There are 3 types of sensor nodes applied in the system which include the door security nodes, infrared sensor nodes, and fire alarm nodes. This architecture includes components such as filters, amplifiers, analog to digital converters and communication interfaces. The system used a wireless transceiver module to transfer data between gateway and sensor nodes. Every sensor node comprises a microprocessor and a wireless transceiver module. The function of the microprocessor is to receive and analyze the signal from the sensors’ node as well as the current status of the nodes. This system also consists of a sleep timer and switch mode pump circuit, which reduces of the power consumption.
C.K. Ng [4] has developed a wireless security system where an alarm system is programmed in a graphical user interface (GUI). The system is used to monitor the RFID reader, RFID tag and the GSM terminal. The information obtained from the tag is sent to the server in a RF link that is exhibited in a GUI. If the laptop is stolen from the covered region, the alarm system will start to draw attention. Meanwhile, the laptop owner will be notified by an alert message. In addition, the alarm system will not be stopped until the laptop is put back in the covered region, or the program is stopped/terminated.RFID have been available for many years for reading bar codes RFID tag located several meters away [5-8]. It is increasingly being used in other applications ranging from inventory management to anti-counterfeiting protection. In a wireless security system (WSS) [8], a RFID tag is attached to the laptop and RFID reader is connected to server. If the laptop is stolen from the reader, the alarm system will be triggered to draw attention with loud noise. The laptop owner will be notified with short messaging service (SMS) from the server via GSM module system in a few seconds. Alternatively, it can be improved with Bluetooth technology which is embedded in most of mobile laptop today [9]. The GSM terminal is used as the SMS interface to send messages 

[10]. Generally the notebook acts as the base station to run the program. Usually GSM terminal comes with a RS232 connector to external terminal equipment, and the Subscriber Identity Module (SIM) cardholder and the external connector [4].Nakrop Jinaporn [11] has developed a security system against asset theft by using radio frequency identification technology. 

The system consists of five main parts: 

(a) RFID reader and tag,

 (b) GUI,

 (c) database system,

 (d) CCTV and 

(e) wireless transmitter and receiver. 

The RFID reader is installed at the entrance of the campus and the tags are attached on/in student ID cards and their properties. The program of the developed system has the capabilities of investigating the identification process, database management and controlling function of the hardware.GUI is used in a vehicle security system where the information is controlled via the GUI [11-12]. The system is activated when the tag is read while the motorcycle is being located within the effective range. The system will automatically record this incident and exhibit the information on the monitor. Any theft occurrence will turn the monitor on automatically with the alarm signal which alerts other systems. When the burglar occurs, the CCTV will also be started for recording is immediately. The motorcycle engine is shut off automatically when the asset theft occurs however this requires a further investigation.

Introduction :A Multilevel Home Security System (MHSS)

1. Introduction

Home security has been a concern of worldwide. As the technology is emerging every second, abundant home based security systems have been developed and implemented to keep their welfare safe. Home security system is an essential mean of protecting our home from illegal invasion. A conventional home security system consists of a Closed Circuit Television, CCTV and burglar alarm. CCTV captures video in 24 hour to identify what goes on around the house and in the house as well as get a hold of the evidence if there is a house breaking around the captured areas. Burglar alarm acts as the tool to alert the house owners and their neighbors. In additional, it may also chase away the burglar as the system may emit a high frequency sound wave. Nevertheless, the memory consumption is considerably large as the camera keeps recording non-stop. The power consumption is considered as a concern of installing a security system. In this project, a multilevel home security system that sends alert messages to the house owner and police station has also been designed, developed and validated. Section 2 introduces the background of the project. Section 3 introduces an overview of MHSS. Section 4 and 5 discusses the system implementation and hardware & circuit testing respectively. Section 6 makes the conclusions of the project as well as highlights the future work.