We have developed a secured DNS system in which even when the request from resolver has been received by the attacker, it would not be able to reply for the same. We have also shown fake server which tries to enter in the communication between the resolver and servers & grant the access. Our system also maintains log files for all the connections established in the network. A. Equations 1. Notations: a) SK: Secret Key b) PUR: Root’s Public key c) ESK: Encryption using Secret Key d) EPUR : Encryption using Root’s Public Key 2. Resolver and DNSRootServer a) Resolver DNSRoot: EPURi(SK, hostname) b) DNSRoot Resolver: ESK[hmac (EPURi(SK, hostname)), IPi)] 3. Resolver and Destination Server a) Resolver DestServer:ESK[hmacEPURi+2(SK, hostname))] 4. DNSRootServer and DNSServer a) EPURi+1[SK, hmac (EPURi+1(SK, hostname))] VI. METHODOLOGY A. DNSRoot Server DNS Root Server is at the top of DNS hierarchy, every request first goes to DNSRoot Server. DNSRoot Server database maintains two files i.e. Pubkey and PrivKey.It first check whether these two files are exists or not. If the files are not exists it create new files and generate key pair using ‘EncManager’. EncManager is the class which used for encryption purpose. All public and private keys related to Root Server are stored in above files. After this DNSRoot Receiving Secrete key and hostname from DNSResolver and Decrypt it using own private key. Obtain top level domain from received hostname then retrieving IP of the same from database. The received IP and port are encrypted using secrete key. Now the next step is Reading public key of top level domain. Connect to that top level domain using IP and port number. Encrypting token ,secrete key and ip using public key of top level do... ... middle of paper ... ...he existing DNS protocol due to hackers. It has become a risk to redirect the current page to any desired page, because one may be redirected to any unsafe page which may cause to lower the trust in security measures. So our objective is to develop such a system which provides more security while we are surfing on internet and make the path from source page to requested page more secure. This paper provides an idea through which we can overcome the disadvantages of secret key cryptography. Our paper provides greater convenience as it solves problem of key distribution. Public key encryption allows the use of digital signatures which enables the recipient of a message to verify that the message is truly from a particular sender. In our paper, the use of digital signatures in public key encryption allows the receiver to detect if the message was altered in transit.
RSA encryption is the foundation of public key cryptography security products. For example, credit card companies use the RSA algorithm for customers’ individual online WebPages. The credit card companies publish a big number on WebPages, which is made by big prime numbers using the RSA algorithm. Since neither computers nor people can factor such big numbers, the RSA encryption system has secured many customers’ information.
Depending on the circumstances of an attack, we will be enabling Virtual Private Network (VPN) which will provide secure network over the internet. It will be beneficial for the company because communications and messages will be encrypted if they are receiving or sending it to the remote users of the company (Henry, A). By controlling the traffic can slow down DDoS attack if unwanted connections are blocked which are not needed on the servers. These are the steps which our company will take to contain the data of our
R. Rivest, A. Shamir, and L. Adleman. A method for obtaining digital signatures and public key cryptosystems. Communications of the ACM, 21(2):120-126, 1978. Computer Science, pages 223-238. Springer, 1999.
This process is a transport layer encryption that includes HTTPS using TLS/SSL which is used to encrypt and keep secure the communication between the websites and the web browser. The websites with HTTPS, enable us to transmit the information over the internet securely. Even if unauthorized user access that information, they can’t read. When the information reaches to the destination probably located in a different country, then website operator can decrypt it and store it.
The use of hacking to identify weaknesses in computer security has become an increasingly controversial issue in recent years. Awareness of this issue is important, because our ever increasing reliance on technology means that breaches in computer security have the potential to have wide-ranging and devastating consequences to society, worldwide. This essay will begin by clearly defining the term ‘hacking’ and will examine the type of people who hack and for what reasons. There will then follow a discussion of the moral argument on hacking before examining a few brief examples. The essay will then conclude by arguing against the use of hacking as a means of identifying weaknesses in computer security.
TOR (Roger Dingledine) is a circuit based low-latency anonymous communication service. TOR is now in its second generation and was developed from the Onion routing program. The routing system can run on several operating systems and protect the anonymity of the user. The latest TOR version supports perfect forward secrecy, congestion control, directory servers, integrity checking and configurable exit policies. Tor is essentially a distributed overlay network which works on the application layer of the TCP protocol. It essentially anonymizes all TCP-based applications like web-browsing, SSH, instant messaging. Using TOR can protect against common form of Internet surveillance known as “traffic analysis” (Electronic Frontier Foundation). Knowing the source and destination of your internet traffic allows others to track your behavior and interests. An IP packet has a header and a dat...
Network Security is the protection of the computer’s network though out the entire infrastructure. It can protect very important information and computer files to help prevent theft, spyware, malware, viruses, and more. Depending on if you have a public or private network, can determine what type of security settings you need for your network. All people are different on what they want to have secured or not, but most people do not know how to prevent people or things from getting in their network. “You must have a general understanding of security terminology and specifications as it relates to configuring hardware and software systems.”(Roberts, Richard M. 599). That quote states that by knowing and understanding security terms and specifics, you can
Data encryption refers to the process of transforming electronic information into a scrambled form that can only be read by someone who knows how to translate the code. In nowadays business world, it’s the easiest and most practical way to secure the information that we stored and processed, and it’s significant for our sensitive information. For example, as electronic commerce is popular now, the vendors and retailers must protect the customers’ personal information from hackers or competitors. They also have many business files or contracts that need to be strictly protected. Without data encryption, these important information may fall into wrong hands and be misused by others. Besides, data encryption may be used to secure sensitive information that exists on company networks, or create digital signatures, and help to authorize in business. No one should underestimate the importance of encryption. A little mistake in encryption may make sensitive information revealing, or even result in illegal and criminal accuse.
Within the last decade, the internet has proven to be the most efficient way to complete tasks in today’s society. Every major business in today’s society relies on the internet to conduct business. Though the internet is a useful tool, our reliability on it opens up the door for cyber-attacks that can be detrimental to business as a whole. One example of a cyber-attacks that have recently started becoming more prevalent are DDoS attacks. Recently, DDoS attacks have been a rising issue for businesses owners who run their own servers, such as video game companies and other high profile web servers, including banks and other credit card payment gateways.
One of the largest parts of commerce is transaction. Transactions are needed anytime two parties exchange money or information. Since the Information Age has begun, transactions are more common over the Internet, where it is more imperative that transactions are secure (Klein x). Corporations have also become more widespread, which means that cryptography is needed to secu...
Without proper protection, any part of any network can be susceptible to attacks or unauthorized activity. Routers, switches, and hosts can all be violated by professional hackers, company competitors. In fact, according to several studies, more than half of all network attacks are waged internally. To determine the best ways to protect against attacks, we should understand the many types of attacks that can be instigated and the damage that these attacks can cause to data. The most common types of attacks include Denial of Service (DoS), password, an...
Cyber Security as an International Security Threat National and International Security is a sum of the actions taken by countries and other organizations that can guarantee the safety and well being of their population. It is vital for a nation to pre-emptively discover what issues could affect their security, and take action to prevent any detrimental or harmful events from happening. With the development of technology and the transition into a more technologically savvy society, cyber security has become one of the most prevalent and important economic and national security issues that the United States will come to face. United States President Barack Obama has identified cyber security as a key issue the nation will face. President Obama declared that the “cyber threat is one of the most serious economic and national security challenges we face as a nation” and that “America's economic prosperity in the 21st century will depend on cyber security (“Foreign Policy Cyber Security,” 2013).”
Today, society is affected by the many advances in technology. These advances affect almost every person in the world. One of the prevalent advances in technology was the invention and mass use of the Internet. Today more than ever, people around the world use the Internet to support their personal and business tasks on a daily basis. The Internet is a portal into vast amounts of information concerning almost every aspect of life including education, business, politics, entertainment, social networking, and world security. (idebate.com) Although the Internet has become a key resource in developing the world, the mass use of Internet has highlighted a major problem, privacy and the protection of individual, corporate, and even government security . The argument over whether or not the Internet should be controlled by the government has developed into a controversial issue in almost every country in the world.
TCP/IP is a network model which enables the communication across the Internet. The most fundamental protocol on which the Internet is built. This is made up of the 2 common networking protocols, TCP, for Transmission Control Protocol, and IP, for Internet Protocol. TCP maintains and handles packet flow linking the systems and IP protocol has the ability to handle the routing of packets. However The TCP/IP stack consists of 5 layers first being application layer, the transport layer, then the network layer, the link layer and finally the physical layer. The assignment focuses on the three middle layers and is divided into five parts. Firstly explaining how the TCP and UDP the most vital protocols needed to deliver and communicate.
The internet offers high speed connectivity between countries, which allows criminals to commit cybercrimes from anywhere in the world. Due to the demand for the internet to be fast, networks are designed for maximum speed, rather than to be secure or track users (“Interpol” par. 1). This lack of security enables hacker...