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Electronic surveillance and privacy
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Recommended: Electronic surveillance and privacy
Introduction :
These days internet is being used by people of different walks of life, who are facing more challenges in terms of data storage and transmission which in turn increases number of users in the network thereby considerably. In the advanced world, information is more essential of workstation interchanges and heart of worldwide economy. To guarantee the security of information, the idea of concealing has pulled in individuals to present an imaginative and innovative answers for secure information from falling into wrong hands. The dissemination of advanced media confronting an issue from numerous years as the information are struck and controlled by unapproved individual. The web is a strategy for correspondence as a method for appropriates data to the masses. As an effect of spreading the web around the globe, stowing away of secret messages through distinctive techniques is expanded. Step by step the data concealing strategies are expanding with more complex methodology. Pictures, features, content and so on are utilized within correspondence of mystery messages in advanced media. steganography and cryptography are distinctive sorts of strategies utilization to send secure information transmission. Steganography is the craftsmanship and art of concealing information into distinctive bearer records, for example, pictures, features, sound, content and so forth. In cryptography, there is parcel of degree to discover mystery message that we send by outsider (assaulter). Anyhow in steganography discovering mystery message is not that much simple. In this way, that just the sender and beneficiary realize that the message even exists. It doesn't pull in unwanted consideration. The mystery message that sender exchang...
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This program uses mainly on the concept of cryptology. Cryptology is the study about secret communication between two parties, where there is a presence of a third party known as adversaries, and that party knows nothing about the content of the communication (Rivest, 1990).
Throughout this course many software packages have been discussed as far as their usefulness and application in a computer forensics environment. I have chosen to write about encryption, as well as anti-spyware software. Specifically I will discuss TrueCrypt and Spybot – Search and Destroy.
An option that copyright owners have considered toward protecting their works from circulating in P2P networks is to use a variety of technological tools to prevent piracy. Such tools would be capable of blocking, decoying and redirecting the connections of unauthorized copyrighted file transfers. However, federal and state laws such as the Computer Fraud and Abuse Act of ...
Modern telecommunications technologies make possible extremists to pitch their dogma globally. As Zanini and Edwards stress, modern network communications enable terrorist the freedom to operate worldwide from most any country (2001, 38). Consequently, terrorists must protect their digital information. That is a need to secure and hide within and mingle among the digital populace in order to protect their freedom of action. Two inexpensive, practical means, steganography and encryption, allow terror associations to hide and secure their digital information that protect their freedom of action.
Solomon, M. G., Rudolph, K., Tittel, E., Broom, N., & Barrett, D. (2011). Computer Forensics Jumpstart (2nd ed.). Indianapolis, IN: Wiley Publishing Inc..
Steganography, Discrete Wavelet Transform, Haar, Daubechies, Biorthogonal, Reverse Biorthogonal , Meyer(dmey) , PSNR & MSE
Britz, Marjie. 2009. Computer forensics and cybercrime: an introduction. Upper Saddle River, N.J.: Pearson Prentice Hall.
Steganography is a lot like cryptography, except there are some differences. Cryptography scrambles the message so that if someone discovers it, they cannot understand the contents of the message easily. A decryption key or password is required in order for the recipient to use the information. The goal of steganography is to have the message go through without anyone other than the intended recipient even knowing it was there. When steganography is used, the message is completely hidden, or invisible, so unless you know what to look for, you wouldn’t even know the hidden message is there. When cryptography is used, and noticed, it may make people suspicious, while when the message is hidden using stenography, it is invisible so as not to arouse suspicion.
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.
"USDOJ: CRM: Computer Crime & Intellectual Property Section." USDOJ. Department of Justice, n.d. Web. 01 Mar. 2014.
Hackers and terrorists have been using this form of technology for years. The United States governmental officials had suspected an attack on the United States for a period of time and thought the information to be hidden using steganography. Anyone can use and get access to steganographic materials. It's easy to download on numerous sights and no software is required. It's an easy and cheap way to keep information secure and undetectable. The number of steganography sites has doubled in the past two years (Kolata, F4). The United States government is also trying to place restrictions on encryption methods to prevent another catastrophic attack in the world such as the World Trade Center attacks. By having access to a private key the government would have unlimited access to secure information and crack codes all for safety reasons (USA Today). A " private key" is needed to decode any steganographic messages. Images are made up from a combination of an abundant of pixels (tiny dots).
LeRoux, Yves. "Privacy concerns in the digital world." 03 Oct 2013. Computer Weekly. 24 April 2014 .
Nowadays when more and more sensitive information is stored on computers and transmitted over the Internet, we need to ensure information security and safety. Image is also an important part of our information .Therefore it’s very important to protect our image from unauthorized access.Security of multimedia information is used to protect the multimedia content...
In this era when the Internet provides essential communication between tens of millions of people and is being increasingly used as a tool for security becomes a tremendously important issue to deal with, So it is important to deal with it. There are many aspects to security and many applications, ranging from secure commerce and payments to private communications and protecting passwords. One essential aspect for secure communications is that of cryptography. But it is important to note that while cryptography is necessary for secure communications, it is not by itself sufficient. Cryptography is the science of writing in secret code and is an ancient art; In the old age people use to send encoded message which can be understand by the receiver only who know the symbolic and relative meaning of that encoded message .The first documented use of cryptography in writing dates back to circa 1900 B.C. Egyptian scribe used non-standard hieroglyphs in an inscription. After writing was invented cryptography appeared spontaneously with applications ranging from diplomatic missives to war-time battle plans. It is no surprise, then, that new forms of cryptography came soon after the widespread development of computer communications. In telecommunications and data cryptography is necessary when communicating in any untrusted medium, which includes any network, particularly the Internet [1].Within the context of any application-to-application communication, there are some security requirements, including: