INTRODUCTION STEGANOGRAPHY
Steganography is an art of hiding data inside data.Steganography is a form of security technique which is used to hide secret messages in various types of files, including digital images, audio and video. It is very old way of hiding secret data, but it changes a lot with the introduction of new technologies. There are many techniques available today for hiding secret data. For hiding in different cover media, there are different techniques. The main aim of steganography is to hide secret data in an innocently looking cover media. . Detection of presence of data in stego data is known as Steganalysis.
History of Steganography:
Steganography has been used in various forms for 2500 years. Steganography
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Public key cryptography is an asymmetric method that use a pair of keys for encryption: a public key which is used to encrypt data, and private, or secret key is used to decryption. It requires that a person must have a pair of public key and private key. The public key is distributed in the open so that anyone wishing to communicate with that in a secure way than he can use the receiver’s public key to convert the plaintext into cipher text. This cipher text cannot be converted into same plaintext using same public key. Therefore, there is no issue if some other person knows about public key. This cipher text is converted into plaintext using receiver’s private key. The Public Key Cryptography can be used to verify the authentication of message in which a message is signed with sender’s private key and it is verified in receiver side by sender’s public key. It also ensures that message has not been tampered, any change in message will result changes in Message Digest, which is a fixed bit string generated from message data. The public key and private key are mathematically related to each other but it is a very difficult job to deduce private key from public key.each other but it is a very difficult job to deduce private key from public …show more content…
Steganography is often confused with cryptography because the two are similar in the way that they both are used to protect confidential information. The difference between the two is in the output; the output of steganography operation is not apparently visible but in cryptography the output is scrambled so that it can draw attention. Author also defines Steganalysis process to detect of presence of steganography. In this paper they tried to clarify the different methods to implementation of steganography using ‘multimedia’ file like text, image, audio and video as
Hash is applied to the message and encrypted using the sender’s public key now the encrypted hashed encrypted message and the message is
People can attach images, documents or just send simple emails to any other person with an email address and is usually used in business circumstances but can be use between people to send any information or just as communication. This means that people can send an email to another person whom has an email address and then this email which can have picture or file attachments can be sent from one email to another some other person can read it and then
Some methods were ciphers, codes, and probably the most interesting, invisible ink. Anybody could spy, but there are some people that you didn’t know spied like Benjamin Franklin. There were others too, and some of them were even traitors. Secret letters consisted of spy codes, invisible ink, ciphers, hidden and masked letters. All of these methods were used so people couldn’t understand if a message was stolen, or confiscated.
Leadership. A quality held by someone in a group to positively influence the members to achieve goals they are heading towards. The movie Hidden Figures, based on the best-selling novel titled Hidden Figures:The American Dream and the Untold Story of the Black Women Who Helped Win the Space Race, presents three adept African American mathematicians: Katherine Johnson, Dorothy Vaughn, and Mary Jackson. These three were the iconic women worked at the National Aeronautics and Space Administration, also known to others as NASA, to successfully launch the first American into space. Their leadership skills makes it an honor to write about the remarkable women, unfortunately, I have to write about just one leader.
The Yellow Wallpaper, by Charlotte Perkins follows the story of the narrator Jane and her physician husband, John, who move to a colonial mansion shortly after the birth of their newborn baby in order to help his wife recover from hysteria and different forms of depression. The sporadic emotions that the narrator face are linked to postpartum depression caused by the recent birth of their baby. This selection, is a story about the progress to insanity and freedom by resolving personal issues. It shows how everyone deals with their personal obstacles in different ways; some people take longer to resolve their problems, and some people even ignore the trouble itself. The Yellow Wallpaper is a perfect example of this because there are several
The encryption key (public key) does not have to be secret and anyone can use it to encrypt data. However, the corresponding decrypted key (private key) is known to a single entity that can decrypt data encrypted with the encryption key. When we need to send an encrypted message to someone else, we first obtain the person’s public encryption key and transform the message with it. Only the recipient knows the corresponding private key. The recipient can decrypt the message.
With the introduction of new technology in recent years, the government can discreetly capture evidence from electronic files,
The Safe Place The story The Hiding Place is narrated by Corrie ten-Boom. She talked about the trials her family, the ten-Boom family, went through during World War ll. The ten-Booms live in Haarlem, Holland in a house known as the Beje. The book begins with the ten Boom family celebrating the 100th anniversary of the watch shop.
For example, your entire class fails a test and your teacher lets you retake it. Since you already know you did badly on the test, you do not want to fail it again. So you cheat your way out of it. You all finish the test without getting caught. Eventually your teacher will find out you cheated.
The main focus of this project was to provide a means of education to digital forensic investigations to develop better and efficient tools to overcome the anti forensic packages. The future of this project could be extended to implement many other anti forensic techniques and features like encryption, steganography and even targeting computer forensic tool vulnerabilities. It would be a disaster if all these techniques are combined and implemented. The future developments could also make use of other digital forensic tools like Prodiscover, Encase and also new computer forensic tools being developed currently in the industry. Defeating cross view rootkit detection tools in a generic
The movie Hidden Figures by Theodore Melfi is talking about the civil rights and equality of men and women in 1970 's to 1990’s. The Mise-en-scene means "setting up a scene. " There are six elements that make up mise-en-scene acting, costume and make-up, setting, lighting, composition or space and lastly. In Hidden Figures, the mise-en-scene helps audiences to become closer to the story and have the same feeling as those main characters. The director uses many different kind of shout angles to show the unbalanced between black people and white people at that time and the color and lighting also help the director can present the emotions that the characters are facing different kind of events or people.
Face recognition technology [1] is the least intrusive and fastest biometric technology. It works with the most obvious individual identifier – the human face. Instead of requiring people to place their hand on a reader (a process not acceptable in some cultures as well as being a source of illness transfer) or precisely position their eye in front of a scanner, face recognition systems unobtrusively take pictures of people 's faces as they enter a defined area. There is no intrusion or delay, and in most cases the subjects are entirely unaware of the process. They do not feel "under surveillance" or that their privacy has been invaded.
Well, I think I’ll just use this opportunity to introduce myself, my family and the you-know-which mysterious country a little bit more (list of three). People always freak out when Chinese students are so mastered in mathematics. Some of them would say its just some sort of Asian gift while some would say our mathematics skills is just as good as our cheating skills in exams (comparison). Well, the truth is: yes, we did try very hard in math during our high school; and no, we did not born with a calculator (exaggeration).
Technology is growing at a fast pace and every day we see a new product or service that is available. Many times it is hard to even keep up with the latest phone, computer, game console, or software. There are so many different gadgets to choose from and even the internet is on information overload. As a result, we can no longer truly expect to have privacy.
Cryptography basically makes any transaction secure between two parties. Security is very important, because every person with Bitcoins, their Bitcoins, and every transaction is logged to a public ledger visible by every computer on the