Difference Between Spatial Area And Frequency Essay

For an encryption strategy to be successful, an organization must consider many factors. For example, for encryption technologies to work properly when data is being transmitted, both the sender and receiver must be using the same or compatible technology.

How does scale influence the information and interpretations we can draw from maps? Map scale has a major influence on the interpretations being made from maps as the level of detail is important. Different scale sized maps have different purposes and can be interpreted differently. For example a small scale map is useful in studying weather patterns and not travel planning. Whereas a large scale map may be useful for landscape changes in a

Geographers adoption physical map to display the physical landscape features, climate, and landform of a certain place or location. Physical map generally shows things like mountains, rivers, and lakes which those are nature made. In a different part of the region, it will have various types of climate and landform. Climate is used to provide data about the general weather condition in a particular area around the world. Landform is a feature on the Earth's surface that is part of the terrain, hills, and plains. Accordingly, this allows people to know the characteristics of different topographical and weather in their surrounding. Because of Geographers so everybody is able to explore more things they ever had thought or seem about.

Data security incorporates the necessity to effectively oversee security dangers connected with electronic information transmission, conglomeration and capacity.

Multimedia security is ever demanding area of research covering different aspects of electrical engineering and computer science. In this chapter, our main focus is encryption of JPEG2000 compatible images. Though both stream and block cipher have been investigated in the literature, but this chapter provides a detailed study of block cipher as applied to images, since JPEG2000 generates various subband sizes as blocks. In the first section, we briefly define various encryption components like wavelet transform, bit plane decomposition, XOR operation, artificial neural network, seed key generator and chaotic map functions, for interest of the reader. Later in section 2, we present literature review of various encryption techniques from two perspectives: applications to highlight scope of research in this domain; and approaches to provide overall view of multimedia encryption. The section three provides a new two-layer encryption technique for JPEG2000 compatible images. The first step provides a single layer of encryption using a neural network to generate a pseudo-random sequence with a 128-bit key, which XORs with bit planes obtained from image subbands to generate encrypted sequences. The second step develops another layer of encryption using a cellular neural network with a different 128-bit key to develop sequences with hyper chaotic behavior. These sequences XOR with selected encrypted bit planes (obtained in step 1) to generate doubly-encrypted bit planes. Finally,

so that hackers cannot steal valuable data. I will also provide MFI ways that it can identify quickly

For data to be transmitted from one place to another effectively communication protocols must be adhered to. These are basically sets of rules that ensure efficient transmission occurs.

system. All data should be encrypted before being copied or stored to help deter hacking. By

What is Networking and Security? you may think network security is worthless or not important, but network security allows you to have usability, reliability, integrity, and safety of your data (“What Is Network Security” np). Without network security you would be opening yourself to many different threats such as: Viruses, Worms, Hacker Attacks, Denial of Service Attacks, Identity Theft, and more (“What Is Network Security and How Does It Protect You?” np). Network Security is important because it protects your personal information on the internet, keeps small and large business networks up and running as well as protects their private information, and speeds up the transfer rate of data because network security

A database’s confidentiality associates with the protection of data information from being disclosed to unauthorized parties. Users who are given access to the data should be able to view certain data according to their given authority. For example, an employee should not be able to see the salaries of their managers however the managers should be able view an employee’s criminal history. A loss of confidentiality means that the data or system is unsecure and unauthorized personnel have the ability to transfer or leak any unsecured data. A method to thwart this threat is through data encryption. This security option uses mathematical algorithms to render a network message unreadable to unauthorized users. The encoding of the data becomes protected and the only way to gain access to the data is through a decryption key. Encryption prevents unauthorized users from reading encrypted data and prevents data leakage.

High security risk. Users of the network must have authentication methods such as unique user ids and passwords. This help control access to the files and settings on the network while passwords prevent unauthorized users from logging onto the network. Data may also have to be encrypted so that it is meaningless if intercepted.

Xiaoqiang Zhang et al, in 2010, the author introduced Safeguard transmission of confidential digital pictures has come to be a public attention in both scrutiny and applications. As shown in their preceding studies, Varied Picture Agent (MIE) encryption algorithm is a new and enthusing picture encryption algorithm, though, its protection is altered by the unreasonable choice of camouflaged images. To examine this factor, the

Abstract—This paper involves the work done in the field of development of secure and better cryptographic algorithms for digital data like images. The paper presents a technique and its application in binary plane decomposition and two image encryption schemes. One scheme is simple and other provides high security. This proposed work achieves lossless image encryption. The paper has been carried out by dividing into five subsections: i) Introduction, ii) Literature Review iii) Proposed Methodology iv) Simulation Results v) Conclusion.

There would be no need for securing data storage network if you can save your information on the network without anyone altering the content. However, it is almost impossible for you to save your information in an unsecured data storage network and retrieve it just the way you saved it. In today’s world where hackers are rampant everywhere, the need to secure data storage network becomes a major concern for security experts.

The complexity of spatial data type and implicit relationships among spatial objects makes the process of discovering spatial patterns from spatial data is more difficult compared to the process discovering patterns from traditional data.