Encryption Methods : Steganography, And Substitution Ciphers

Encryption is the conversion of electronic data into another form, called cipher text, which cannot be easily understood by anyone except authorized parties. The primary purpose of encryption is to protect the confidentiality of digital data stored on computer systems or transmitted via the Internet or other computer networks. Modern encryption algorithms play

In today’s world of instant connectivity and information at users’ fingertips, it’s vital that sensitive information is safeguarded against those who seek to do personal harm and profit from gaining access to the data. The key behind keeping information safe is the method in which it’s protected and encrypted. In order to appreciate how information is secured, users must understand the encryption concepts behind it. To do this, one must comprehend the current encryption standards, the trends and developments in encryption technology, the importance of securing data, the government’s regulations pertaining to encryption, the companies involved in research and implementation, the implications of leaked or stolen data, and a brief look into

Abstract: The use of encryption by individuals is growing at a tremendous rate, and since 1991 cryptography issues have engulfed both the U.S. government as well as the computing industry. One of the most controversial of these issues is whether encryption should be made supremely secure to the highest-level current technology will allow, or whether a "master key" should be locked away somewhere, only to be used when absolutely justified.  Both sides of the issue have their benefits and detriments; the problem is finding the middle ground that will provide the greatest benefit to society.

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

In asymmetric encryption the public key can be distrusted to anybody while the private key which is kept by an individual. In order for this process to work, it is imperative that the two keys are mathematically paired in order to be able to encrypt and decrypt messages. Because they are mathematically paired, asymmetric encryption can work in both directions, where a message can be encrypted and decrypted with a public or private key, and encrypted and decrypted by the corresponding key. There are several disadvantages to using asymmetric encryption, some of which include that it is slow compared to symmetric encryption and the loss of the private key is an irreversible and unreplaceable action. Despite these disadvantages, the advantages of asymmetric encryption are its convenience in providing a solution for the distribution of the key found in symmetric encryption, and the combination of public and private keys provides us a method of authentication as private keys are needed in order to read the

Cryptography is the art of hiding or securing the important communication from the possible attacks of the outside.

Objectives of my Final Project: In my undertaking I principally focused on the information security issues when sending the information over the system utilizing steganographic procedures. The principle destinations of the task are

Steganography is the science of hiding a secret message or data inside another text, image, audio or video file. It has been in use since ancient times. The distinguishing factors in the steganography techniques used back then and at present, is the medium to carry the secret data and the various algorithms which have been designed for it. We intend to uncover the pros and cons of these various steganography techniques, which use different mediums to carry the secret data.

There has been a need for a non-breakable encryption algorithm desired after since the establishment of Cryptography was first matured. However, an algorithm is advised to be immune as long as there has not been found susceptibility through cryptanalysis. Symmetric-key block ciphers abide as the largest and critical aspect in many cryptographic systems. Independently, they add confidentiality. As a central construction block, their adaptability grants the manufacturing of pseudorandom stream ciphers, number generators, hash functions, and MAC’s. Moreover they serve as an essential component in message verification methods, symmetric-key signature schemes, entity confirmation protocols, and data purity. Although Block ciphers are very powerful objects their design flaws and complex interface opens the door for wider attacks.

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 defined as the art or process of writing in or deciphering secret code: any system of secret writing. Encryption is used in electronic systems to achieve privacy and authentication of information. The privacy requires, two questions need to be answered: what are the consequences of unauthorized access to or disclosure of the valuable information, and how often the possibility of unauthorized access to or disclosure of information. Authentication addresses the issues of whether data is from the correct source or if it has been unauthorized with. Functions embedded with in cryptographic systems help ensure data integrity by guaranteeing authenticity of a message and allowing the use of digital signature, a data block attached to a message that binds the message to a sender so that it can be verified by the receiver or others.

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

* Implements the DES cipher on 64 bit blocks in @param input using @param key in CBC mode.

The word steganography is of Greek origin and means "concealed writing" from the Greek words steganosmeaning "covered ", and graph demeaning “writing”. Steganography is the art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence ofthe message.. Steganography includes the concealment of information within computer files. In digital steganography, electronic communications may include steganographic coding inside of a transport layer, such as a document file, image file, program or protocol. Media files are ideal for steganographic transmission because of their large size. As a simple example, a sender might start with an innocuous image file and

This paper discusses the history of data encryption technology. It also touches on several aspects of data encryption technology. Furthermore, an attempt will be made to answer several key questions like what is data encryption technology (DET). It will also detail some of the history of DET, how DET affects the lives of people in America, and some of the future implications of this technology.