Cryptography, Cryptography And Decryption Keys Essay

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

Steganography in the context of digital content piracy serves primarily as a method to track where digital assets are moving or who is receiving them. It can be a good solution for distribution of a small number of copies but becomes less effective when distributing on a wide basis. In order for it to be effective a content provider needs to recover the content by means of the unauthorized channel and examine the indicator marked on the copy. This is cumbersome for wide distribution but can be used on a broad basis such as by region. Region coding is used with many DVD releases for example but can also be considered a type of DRM (Andrew,

Data encryption describes the transformation of plain text into a different format that is meaningless read by human eye without being decrypted, so called cipher text, in order to prevent any unauthorized party to obtain information from the document.

Encryption is a cryptography in which one covers data or information by transforming it into an undecipherable code. Encryption generally uses a predefined parameter or key to perform the data change. Some encryption computations oblige the best approach to be the same length as the message to be encoded yet other encryption counts can take a shot at much more diminutive keys concerning the message. Separating is as often as possible described close by encryption as it’s backwards. Unscrambling of encoded data realizes the first data. Encryption is used as a piece of customary forefront life. Encryption is most used among trades over flimsy channels of correspondence for instance the web. Encryption is also used to secure data being traded between contraptions, for instance, modified teller machines (ATMs), cells, and various more. Encryption can be used to make automated imprints, which allow a message to be affirmed. Exactly when honest to goodness executed, an automated imprint gives the recipient of a message inspiration to acknowledge the message was sent by the affirmed sender. Modernized imprints are outstandingly significant when sending tricky email and distinctive sorts of cutting edge correspondence. This is by and large equivalent to standard composed by hand marks, in that, an all the more astounding imprint passes on a more multifaceted methodology for manufacture. Figure a figure is an estimation, strategy, or method for performing encryption and translating.

Steganography (literally meaning covered writing) dates back to ancient Greece, where common practices consisted of etching messages in wooden tablets and covering them with wax, and tattooing a shaved messenger's head, letting his hair grow back, and then shaving it again when he arrived at his contact point. Steganography comes from the Greek steganos, or "covered," and graphie, or "writing". Synonymous to abstraction, the art and science of hiding information by embedding messages within other, seemingly harmless messages. Steganography takes cryptography a step farther by hiding an encrypted message so that no one suspects it exists. Ideally, anyone scanning your data

“Encryption is a way to enhance the security of a message or file by scrambling the contents so that it can be read only by someone who has the right encryption key to unscramble it” (Microsoft). Encryption uses an algorithm to change plain text data to cipher text. It played a very important role in wars and in military circles to protect top secret information from foreign countries.

The main way to protect the data being transmitted is to hide the message. There are two fundamental techniques used in computer security: Stenography and Cryptography. Both techniques require a transformation in the information to be sent, an identification character included in the message to recognize the sender, and also some secret information to scramble the message when sent and to unscramble it when received (Stallings 12). When the method of Stenography is used, the very existence of the message is cancelled. For example, the resolution of a Kodak CD format is 2048 by 3072 pixels, and each pixel contains 24 bits. If one bit of each pixel is used to

Modern cryptography uses sophisticated mathematical equations (algorithms) and secret keys to encrypt and decrypt data.

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.

Abstract- The utilization of PC systems for information transmissions has made the need of security. The security of this intuitive media data should be possible with encryption or information concealing calculations. To diminish the transmission time, the information pressure is necessary. Since couple of years, an issue is to attempt to join pressure, encryption and information covering up in a solitary stride. Picture security turns out to be progressively critical for some applications, e.g., secret transmission, video reconnaissance, military and therapeutic applications. These days, the transmission of pictures is an every day routine and it is important to locate a proficient approach to transmit them over systems. They send Secret message over channel utilizing Cryptography and Steganography calculations by AES (Advanced Encryption Standard). It is utilized to scramble the information from plain content to figure content the other way around. There are two sorts of keys accessible in the cryptography, symmetric and asymmetric. There are utilizing symmetric key which is separated into two key, for example, private and open key. Open key is utilized for encryption and private key is utilized for decoding. The reversible information concealing method is utilized to recover the information and picture

Steganography is the art of communicating in such a way that the presence of a message cannot be detected; simply put “covered writing”. The message is out in plain sight but Steganography hides the existence of a secret message and in the best case nobody can see that both

Besides, image steganography is a collection of numbers that hide information or message inside the image. In this image hidden method, the pixels of the image are changed to hide the secret data and invisible to

The practice and study in securing communication between parties in presence of potential adversaries. A cryptographic algorithm or cipher is a mathematical function used in a plaintext in the encryption and decryption process. A cryptographic algorithm works in combination with a key (number, word, or phrase) to encrypt the plaintext. The

Steganography is the science of hiding information so that it remains undetected except by its intended receiver. Need of steganography arises when one needs to communicate privately and he cannot risk to arouse the suspicion by sending encrypted message in plain sight.

Information security is of prime concern as data is being transmitted digitally. A system must provide the essential security services such as authentication, data integrity, data confidentiality, non-repudiation, access control, availability [1]. Cryptography is the study of techniques that provide a means for secure communication. It enables the transmission of the information over insecure channels. It ensures that the data is being accessed or is understood by the authorized persons only. Encryption algorithms are one such mechanism that provide the data security. They are used to encode the plain text into a cipher text which is not in a readable format. The initial input data is known as the plain text. The scrambling of the data in the plain text using various substitution and permutation mechanisms is encryption. The scramble data obtained is not readable and is the cipher text.