Cryptography Essay

Internet has become an indispensable tool in my daily tasks. Contrary; when I was a child, I recall myself going to the library for investigations as back then the use of internet was still on the road of gaining popularity. Nowadays, internet seems to have gained tremendous popularity among new generations to the point that if I were to compare my generation with future generations, I would say they will have even more advantages than the ones I had when I was a child. In addition, changes in population is a second normative history-grade influence as my generation tends to have less children than past generations due to the implementation of contraceptive methods and living cost increases experienced since the past few

M2 – Explain the operation and use of encryption technique in ensuring security of transmitted information

There are many aspects to security and applications, from secure commerce and payment to private communications and protecting passwords. Cryptography, is the practice and study in securing communication between parties in the presence of potential adversaries (Yousuf, N.D.). This report focuses on modern methods of cryptography its operation, strengths and weaknesses, its application techniques in computing and some other aspects where cryptography deemed essential as discussed in this report.

This paper will discuss about some background information is provided, state-of-art email encryptions are reviewed and the IBE scheme is introduced. Then an encryption system based on IBE, DNS and proxy service is proposed.

The internet is the easier way for people to communicate with each other. It has made the world smaller by bringing people together everywhere and any time. This invention has important tools for people to contact and it has changed their way of communication in today busy world. In fact people are becoming totally dependent on the internet as a way of communication in their daily life, business and work. The limitation of old communication tools has made the use of internet for communication is wider all over the world .

The goal of our research paper is to provide a concise analysis on data security and privacy protection issues pertaining to data and databases as well as the current advancement/ breakthrough made and achieved in regards to database security and privacy concerns. We will also discuss in this paper some current solutions in the security market. First, we looked at the a trusted database model which makes it possible to shield database with absolute secrecy to benefit trusted equipment presented on the side of server and made to work at the charge of any cryptography which permits private data handling on a simple device.

Internet usage has seen a steep growth over last year with 54% of the active internet users accessing Internet daily. This is indeed an encouraging trend and shows that the Internet has seeped in the lives of many in a big way.

There are various advantages and disadvantages of the cryptography of using techniques with privacy preservation data mining.

But with advancement of worldwide internet the security of data is important issue. Computer crime is becoming not only disastrous in potential impact but also more attractive to the criminal. There are various techniques, data theft can be prevented.[1][2]

In today’s world Internet has become one of the most important mediums of communication. It has become the lifeline of our survival. It has removed the entire social, economic and physical barrier and has immense effect on our day to day activity.

Primary purpose of cryptography is security. Cryptography has been present since thousands of years. Encryption for a longer duration is a priority in many organizations. One among them is military, which used cryptography to securely transmit a message. During 1980’s there is great necessity of securely communicating with others. Internet is present since 1960’s and the World Wide Web came into existence during 1980’s. Throughout the world people access the internet. A World Wide Web, an electronic portal, is extensively used by many people for communicating. People used World Wide Web to send electronic mails. This kind of communication increased around the world. As the information passed between the two people may be hacked by any other person, securing data and transmitting to the right person became important aspect. A deep emphasis of encryption and cryptography will help all

CRYPTOGRAPHY is the most important part to secure any business by securing the communication range. In this project important topics of cryptography that should be known in general is discussed . How decoding and encoding in done with the help of cryptography to secure any communication. How it helps to maintain authenticity of any industry or company. Cryptography helps in making transactions by keeping data secure. It also protect passwords, ATM pins etc. from hackers. Cryptography maintains aspects which is authenticated like Confidentiality, authenticity & integrity. In this project it is described how cryptography converts the essential data in coded form and how it is changed using terms encryption and decryption. In this undertaking distinctive keys utilized for encryption and unscrambling is examined like cryptography mystery key and open key. In this a short portrayal of encryption is given which is the starting venture in cryptography. Encryption takes an arrangement of calculations, or scientific articulations, to scramble information from its unique organization into one undecipherable. Purpose of cryptography is discussed in the project. How secret codes were used in ancient period is briefly described. Now key is used in cryptography how key convert the data from one format to another is discussed. There are three keys in cryptography public, private and shared keys. A brief discussion about how these

Thus, it is essential that computational techniques are performed so that the requirements of information protection are met. In this scenario are presented the two basic types of encryption, symmetric or private key and public key or asymmetric.

From the codes messages passed furtively throughout the courts of medieval Europe, to the infamous Enigma cipher machine which protected Nazi secrets in World War II, the concept of cryptography is nearly as old as the written word itself. Today, the field of information technology has developed to the point that even the most sophisticated encryption methods are vulnerable, and for those working as information security officers, shielding a company's invaluable data through the use of encryption has become an essential skill. Modern encryption methods rely on much of the same techniques used throughout history, with human readable plaintext being transformed into an unreadable format known as ciphertext upon transmission between two parties, in effort to prevent nefarious third-party intrusions. Within the sub-field of cryptanalysis a growing focus on mathematical theory has spawned the development of intricately constructed algorithms, or governing systems used to precisely define a sequence of operations (Layton, 2007). Modern cryptographic algorithms are capable of creating computationally secured systems that, while they can be theoretically deciphered, are ostensibly secure from any feasible attack strategy. The most widely applied cryptographic algorithms employed by information security officers today typically fall under one of two categories: Symmetric-key cryptography and Public-key cryptography (Peltier, Peltier & Blackley,

Chapter 2 reviews a general overview of basic knowledge should be mastered for good understanding and pointing out the key points of desired attributes as well. Furthermore, possible malicious attacks have been briefly defined and the threat model adopted also reviewed in a brief which helps to know what the environment conditions could be and what is the ability of an attacker to gain secret information. Then after, how an attacker can use these information to perform an attacks.