Cryptographic overhead of IPsec Protocol suit Research Paper

Cryptographic overhead of IPsec Protocol suit - Research Paper Example The reality that the Internet is deficient in security is still undeniable. So to solve this issue researchers are trying to increase the network security at each layer by designing a range of security protocols. The designed protocols include PGP, S/MIME, and SET which are specifically designed to ensure the security of the application layer. In this scenario, SSL/TLS are used on the transport layer. In this race, IPSec is one of the most important security protocol, which is designed for dealing with the network layer security, ensuring the availability of security services like that data source authentication, access control, data confidentiality and integrity and processing data packages on the IP packet layer (Zheng & Zhang, 2009; Meng, et al., 2010). This report presents a detailed analysis of IPSec and associated aspects. IPSec IPSec is a complete suite of protocols, which carry out specific tasks. As discussed above, the basic objective of IPSec is to provide a variety of sec urity facilities to traffic transmitting between a source and destination. In this scenario, a source or destination can be a host or a router. In addition, these facilities can be used for all packets sent or received, or simply to a particular kind of transmission such as FTP or telnet. Figure1 demonstrates how IPSec ensures the security of data transmission between a host and a destination (Clark, 2002): Figure 1IPSec Operation, Image Source: (Clark, 2002) In this diagram a red line is used to demonstrate that IPSec is implemented on the path between the Host B and Router 1. Basically, IPSec provides a variety of security mechanisms for securing transmissions over a network and these mechanisms can be implemented in different ways. Additionally, IPSec can perform operations on particular kind of traffic at the same time as remaining traffic is moved on a defenseless path. This process is clearly mentioned in the figure, in this figure 1 black links are used to demonstrate this ki nd of communication. A number of separate IPSec protected connections can be established between the two routers and between Host B and Router 1 (Clark, 2002). Implementation of security through IPSec In their paper, (Zheng & Zhang, 2009) provides a detailed discussion on the working of IPSec and the way it ensures the surety of transmission over a network. According to their viewpoint, IPSec implements the security in a network by maintaining the security associations (SAs). In this scenario, a security association is used as a basis to identify the security parameters that will be utilized in data transmission to make it protected, for instance IPSec security protocol, encryption algorithm, hash function and encryption key. Additionally, each security association is typically specified by an exclusive set of parameters such as destination IP address, security parameter index and security protocol. In addition, these associations are established after the negotiation between the co mmunicating hosts in the networks. IPSec is also responsible for maintaining a Security Policy Database (SPD). In fact, a network interface that is established using the IPSec, possesses a pair of Security Policy Database and Security Association Database, which help in processing incoming and outgoing IP packets. One entry of Security Association Database is equal to a security association, on the other hand, Security Policy Database entry refers to a security policy. In this scenario,

Enterprise and Entrepreneurial Management Essay - 3

Enterprise and Entrepreneurial Management - Essay Example The process involves generation of multiple ideas in the minds of the respective entrepreneur. The person may screen and reach at a various different ideas with each one having its unique pros and cons. Such ideas are generally in a raw format without much technical analysis being done on them. Idea generation is extremely significant because idea is the stone that is polished at the various stages of a business plan. An idea arises mostly from the personal interests and perception of the entrepreneur. It is something that is related to the behavioural nature and professional mindset of the entrepreneur. For instance a medical professional might develop an idea for surgical equipment retailing, a good cook might think of opening a restaurant and the like. It is always better to work out on those areas which relates to the interest of entrepreneur. It is as good as a business firm diversifying into a related product line. If the entrepreneur is familiar with the idea, it would be conv enient for him/her to manage it. Therefore, the first question an aspiring entrepreneur should ask is what interests them the most and is there an opportunity lying in the market for the same. This thought can give rise to more specific ideas. Strategic Objectives: Strategic objectives or just business objectives refer to the actual purposes of the business for which the business actually exists. It is considered as the focal point of all the major activities of the business. The strategic objectives of a business are usually encompassed in the terms Vision and Mission. Vision is the future outlook of the business and Mission is the actual purpose as well as course of action to be taken to... The researcher states that in the case of a successful enterprise, a detailed and comprehensive Business Plan is the primary step which ensures the overall course of action of the business. In most cases, a business plan is created to explain and illustrate the vision you have for your business, and to persuade others to help you achieve that vision. Topfer states that starting a business without enough planning is like setting a journey without deciding on the destination. In most cases, small businesses simply ignore the process of business planning. There are various different reasons which actually become hurdle in the formulation of the Business Plan including time constraints, resource constraints and more importantly expertise constraints. But irrespective of the size of the business, it is always beneficial to have a clearly charted out plan. Business plans are required not only for planning the future of the business but also for the availing financing options. All financial institutions assist with the capital requirement of the company only after a careful study of the prospects of the business. Such an analysis is possible only with the help of a detailed and comprehensive business plan. This paper highlights the entrepreneurial characteristics. There are several literatures that discuss the qualities and skills required for becoming a successful entrepreneur. Most of such literatures discuss almost the same characteristics.

James Cameron and his influence on the Movie Industry Research Paper

James Cameron and his influence on the Movie Industry - Research Paper Example James Cameron and his influence on the Movie Industry Credited for creation of legendary movies with unforgettable characters and special effects, James Cameron in his 31 year film career, has churned out epic blockbusters, breaking his own box office records. Right from the heart wrenching soft romance in 'Titanic', to breathless catastrophes in 'Terminator', his films have enchanted and captivated audiences worldwide. Throughout his career in the film industry, James Cameron has left an indelible mark on the history of entertainment, combining captivating special effects with inspiring and unforgettable storylines. A prominent entertainment figure, honored across the world by prestigious organizations, and listed in TIME magazine's top 100 influential people of the 20th century, James Cameron has greatly revolutionized and influenced the movie industry and culture, deserving even higher accolades, honor and recognition. Describing James Cameron's days as a young boy, Tom Shone, author of Blockbuster: How Hollywood Learned to Stop Worr ying and Love the Summer, writes: As a boy in Chippawa, Ontario, James Cameron once sent some mice over the edge of Niagara Falls in a small submersible made from old mayonnaise jars, an Erector Set and a paint bucket. Another time, he made a hot-air balloon out of a dry-cleaning bag and some candles, floating it down the street until someone reported it as a U.F.O. and called the Fire Department. Together with the young Steven Spielberg’s experiments in civic alarum-raising — locking himself in the bathroom until the Phoenix Fire Department was summoned — Cameron’s excursions suggest two interlocking propositions: (1) If you want to know who is going to grow up to be a box-office titan, check out the rec ­ords of your local Fire Department. And (2) nobody should be surprised if Balloon Boy turns into the proud auteur behind Terminator Resurrection: This Time With Feeling. (Shone) I am the king of the World James Cameron, lifting his Oscar Statuette for the movie 'Titanic' on the night of March 23 , in the Shrine Auditorium, shouted, "I am the King of the World". The highest grosser worldwide, Titanic went on to win 11 Academy Awards. The movie's successful run at the box office worldwide breaking all records, set all naysayers to rest. Being the most expensive movie ever made, going $100m over budget, it was speculated that the movie was doomed to flop. Contrary to his other movies, which were mostly sci-fi, with hard action and thrill, Titanic was different from his previous works. "Titanic, however, was something else altogether, and, particularly in its appeal to women, almost unfathomable in its emotional power" (Goodwin). The movie's overwhelming success established James Cameron as the king of Hollywood, leaving the audience crooning 'My Heart will go on'. A Visionary "An audacious visionary who developed new film technologies midstream in order to turn his creative visions into film reality, director James Cameron was cred ited with single-handedly resurrecting a once-dead science fiction genre, thanks to the timeless success of "The Terminator" (1984) and "Aliens" (1986)" (Yahoo movies). True to his reputation, James Cameron could bring the dead back to life in his movies. Beginning with ' Xenogenesis', followed by the ' The Abyss', 'Aliens', the 'Terminator' series and then 'Avatar', Hollywood science fiction has finally arrived. Avatar, a 3D digital movie, was his ambitious foray into 3D film making, a genre still in its nascent stage, where many other

Global Organizational Behavior And Employee Development Dissertation

Global Organizational Behavior And Employee Development - Dissertation Example The findings of the research indicate that there is a positive relationship between employee development and the organization behavior. Motivation and job satisfaction determine the employees’ contribution to the achievement of the organizational goals. The limitation of this research emanates from the fact that the data used for the analysis is subjective to the human opinions and hence may be untruthful. The recommendation of this study is that the management team in any organization should invest in employee motivation and development to optimize the worker output. The value of this research lies in its ability to provide viable solutions to the reformation of organization behavior. Given that employees form part of the scarce organizational resources, optimizing their output is a priority for any organization that intends to remain productive in the competitive market environment. This paper makes a conclusion that the topic of global of global organizational behavior and employee development is of great importance to the modern organizations, this has not received the amount of attention it deserves from researchers in the present generation. The theories that were developed by classical, and other past theorists on this topic might not be highly relevant to the situation of the modern organization. This is because of the fact that the traditional organization has experienced vast transformations in its structure, and the modern business environment has also experienced various changes, in addition to the needs and living standards of the modern employees.

Biology Unit 5 DB Essay Example | Topics and Well Written Essays - 500 words

Biology Unit 5 DB - Essay Example The leaves grow from a basal rosette, and a ‘keel’ provided the required structural reinforcement to each pitcher so the the opening is always upright. Foraging, flying or crawling insects such as flies are attracted to the cavity formed by the cupped leaf, often by visual lures such as anthocyanin pigments, and nectar bribes. The sides of the pitcher are slippery and may be grooved in such a way so as to ensure that the insects cannot climb out. The small bodies of liquid contained within the pitcher traps are called phytotelmata. They drown the insect, and the body of it is gradually dissolved. This may occur by bacterial action (the bacteria being washed into the pitcher by rainfall) or by enzymes secreted by the plant itself. Furthermore, some pitcher plants contain mutualistic insect larvae, which feed on trapped prey, and whose excreta the plant absorbs (Wikipedia). During digestion, trapped prey are converted into a solution of amino acids, peptides, phosphates, ammonium and urea. The plant obtains its mineral nutrition, particularly nitrogen and phosphorus, from this solution. Common habitats of the pitcher plant are bogs, savannas and flat woods. The wettest parts of the bogs are favored, often restricting the species to the edge of the bogs. Pitcher plants form dense floating mats on the water on the edge of bog ponds or lakes and acidic streams. The carnivorous form of nutrition of the plant is an adaptation to the poor mineral content or acidic nature of the soil in which it grows. The soil in which it grows is usually deficient in trace elements such as molybdenum. Such soils are usually highly acidic and unsuitable for many other plants. The modified leaves of the pitcher plant help it to catch preys that comprise not only insects but also isopods, mites, spiders and the occasional frogs. What the plant does not get from the soil it grows in, it obtains from the living prey it catches

Transforming Nursing And Healthcare Essay Example for Free

Transforming Nursing And Healthcare Essay In today’s ever changing healthcare world, effective communication among healthcare team members is essential to provide safe and quality patient care. Conventional communication methods such as the telephone and the word of mouth are no longer the most effective ways of communicating important aspect of patient care. So health organizations are adopting communication systems which improve interaction among healthcare providers (McGonigle Mastrian, 2012). Recently my hospital adopted a new operating system called Care Logistics. Care logistics is a â€Å"†¦centralized care coordination model to efficiently anticipate, prioritize, coordinate, schedule, prepare for and track all patient movement, care, services and transport. This coordination of multiple people and departments establishes predictability and timeliness, improving throughput while best serving patients and caregivers.† (Care Logistics, n.d.). Order logistic is a section of care logistics that directly involves the nurses. Order logistics is a central order organizers, service departments and unit clinical care coordinators to manage simultaneous patient service demand across the hospital. The right patients receive tests and procedures in the order that best serves individual. After the nurse receives his/her assignment for the shift, she will log into care logistics to view the patient itinerary for the day. If a particular procedure such as transesophageal echocardiography (TEE) is scheduled at 10 o’clock a.m. Order logistics will communicate with the nurse that the patient will need to be NPO for at least eight hours, have a consent for the procedure and have at least a 20 gauge peripheral IV. Order logistics clearly shows nurses, doctors and service areas what is needed in order to deliver appropriate services. The nurse will acknowledge the procedure. By doing this, the logistics hub knows the nurse is aware that this patient has a procedure pending. During this time, if all requirements are met to have procedure then the nurse will make this procedure green, indicating that transportation can come for this patient. But for instance if the nurse was having a hard time getting the consent because the patient has dementia and  the family is unobtainable, then the nurse can make a note indicating the reason why this patient is not ready. Benefits of Care Logistics With care logistics, nurses are able to let patients and families know their daily itinerary. This eliminates the uncertainty of the day and the constant inquiry from patients about when certain events will occur. Order logistics allow nurses to spend more time with patients instead of the repeated interruptions by phone pages from radiology and other various departments. Acknowledging the procedures and/or indicating that the patient is ready, the nurse does not have to worry about scheduling and can spend more of her time providing quality bedside care. With order logistics doctors have started receiving test results more quickly. This allows them to appropriately diagnose and treat patients. Care logistics move patients through the hospital faster, by reducing wasted time and average length of stay for patients. Care logistics enhances communication and workflow while keeping the care in the forefront. As with any new healthcare technology patient care is the focus. Barriers of Care Logistics As with any new technological tool, there will be barriers that arise. Compliance of staff members to care logistics has been a problem. Resistance has occurred because nurses look at this system as another task to be completed. In actuality it is not anther task, it is eliminating repeated telephone calls and the uncertainty of what the patient need. Most of the nurses that experience this are older nurses that view change as a difficult obstacle. This slows down the process. Before the hospital went live with care logistics, there was a brief class orientation to the system. For someone that does not have a problem with maneuvering themselves around computer systems, a brief class orientation is sufficient. However for the nurses that struggle with computerized charting should be given the opportunity for extending class time. During their sessions they would be given scenarios of multiple patient itineraries and be guided through the care logistic process. If this was done then the hospital would probably have better compliance with this new communicating system. References Care Logistics. (n.d.). Care Coordination Model. Retrieved from http://www.carelogistics.com/solution/care-coordination-model.aspx McGonigle, D., Mastrian, K.G. (2012). Nursing informatics and the foundation of knowledge (Laureate Education, Inc., custom ed.). Burlington, MA: Jones Bartlett Learning.

Position Paper (Education) on Philosophy Essay Example for Free

Position Paper (Education) on Philosophy Essay The word education is defined as the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life, it is also an art of teaching; pedagogics. Education signify the activity, process, or enterprise of educating or being educated and sometimes to signify the discipline or field of study taught in different schools of education that concerns itself with this activity, process and training. Education has many roots, and since the beginning of man, it has been started and knowledge developed and had been passed from one generation to another. Every generation, it is somehow passed on its stock of values, traditions, methods and skill. The passing on of culture is also known as enculturation and the learning of social values and behaviors is socialization. The history of the curricula of such education reflects history itself, the history of knowledge, beliefs, skills and cultures of man. It is somehow complex because it started with survival and then man paints his own ideas as he travels in life and explore what could be done. He then finds himself being curious and begins finding answers to his questions. One example are the findings of archaeologist who studied the past and came to know different kinds of human activities and cultures, in the caves, based on artifacts, they come to know that people start to draw, write symbols which later was translated and was believed that somehow, man came to learn by himself and knowledge is passed on, their practices somehow gave contribution in our life today, in reading, writing, speaking which is related to education. In pre-literate societies, education was carried out orally and through observation. The young first learned informally from their parents, extended family and grandparents as simple as first steps in reading and writing. At later stages they received instruction of a more structured and formal nature, like the school, imparted by people not necessarily related, in the context of initiation, religion or ritual. There are many forms of education, and it has only one goal: to develop knowledge. Let’s take Philosophical education; it is the process of education or the philosophy of the discipline of education. It is part of the discipline in the sense of being concerned with the articulation, desideratum, arrangement, or results of the process of educating or being educated; or it may be metadisciplinary in the sense of being concerned with the concepts of the discipline, it also aims to investigate the educational significance of philosophy. It all started with the birth of philosophy, in the place of Greece and was spread worldwide. All cultures in all forms; prehistoric, medieval, or modern; Eastern, Western, religious or secular have their own unique schools of philosophy, arrived through both inheritance and through independent discovery. Such theories have flourished from different premises and approaches, examples of which include rationalism (any view appealing to reason as a source of knowledge or justification), empiricism (theory of knowledge that asserts that knowledge comes only or primarily from sensory experience.) and even through leaps of faith, hope and inheritance. There may be different kinds of philosophical school, but the goal is to understand the development of philosophical ideas through time. Philosophy of education as such does not describe, compare, or explain any enterprises to systems of education, past or present; except it is concerned with the tracing of its own history, it leaves such delving to the history and sociology of education. Analytical philosophy of education is the logical positivist principle that there are no any specifically philosophical truths and that the basis of philosophy is the logical resolution of thoughts. This may be contrasted with the traditional foundationalism, which considers philosophy as a special, elite science that investigates the fundamental reasons and principles of everything. As an outcome, many analytic philosophers have considered their exploration as continuous with, or subordinate to, those of the natural sciences. It is meta to the discipline of education–to all the inquiries and thinking about education. It comprehends of its task as that of analysis: the definition of educational concepts like teaching, indoctri nation, trait, and ability, and including the concept of education itself. * BODY Philosophical education was traditionally developed by philosophers for example, Aristotle, Augustine, and John Locke Jean Jacques Rousseau, as part of their philosophical systems, in the context of their ethical theories. * Plato Plato’s allegory of the cave in his most important work, the Republic wherein he conceives the following vision: prisoners are chained in such a way that they face the dark and back part of the cave. They have been there for a long time and are like doomed and had nothing to do and has no perception in life. They can see nothing but themselves. They see only shadows of some certain stuff cast by a fire that burnt in a ledge above and behind them which they had no care about, between the fire and the prisoners is a wall line path alon g which people walk carrying vases alongside, they hear echoes of voices. Socrates then supposes that a prisoner is freed and permitted to stand up and explore the cave. Now, he is forced up the â€Å"steep and rugged ascent† (Plato’s allegory of education) and brought outside the sunlit exterior world. But the light blinds him. He must first look at the shadows of the trees, then at the mountains. Finally, he is able to see the sun itself. We are like the prisoners in the cave, still in the darkness not educated and are not yet philosophers. It’s like the cave is our confined world and we are still on our own selves and not merely had explored the outside bright world for our development, and inside the cave we see shadows, hear voices like there is a chaos going on we only implement fear, fear of exploring our own world and its vast approach to us. We are like prisoners in our own life which has no particular benefit to us, we can never attain real knowledge if we do not explore. The journey out the cave is said to be the philosophical education and the prisoner who was unchained is the kind of person who ought to be educated because he explored and find out what is behind the light, he has attained warmth and truth. Through this, one can conclude that most of the human beings would rather live a comfortable, happy and familiar life, than a life full of obstacles and pain, which would ultimately lead them to the larger truths of life. Man is contended with the consensus reality, i.e. the reality agreed by all, even if it is as imaginary and as unreal as the shadows on the walls of the cave man is also contended that they have the security of a family, of a society, of religion around them. However, according to Plato, there will come one questioner, one philosopher, from time to time, who will critically look at himself and the world around him, who will wonder why things are the way they are and then will make his own decisions regarding how things should be and that is being open-minded and being curious. * Jean Jacques Rousseau Jean Jacques Rousseau’s view on education differ to those with Plato, The focus of Émile is upon the individual tuition of a boy/young man in line with the principles of natural education. This focus tends to be what is taken up by later commentators, yet Rousseaus concern with the in dividual is balanced in some of his other writing with the need for public or national education. Rousseau believed it was possible to preserve the original nature of the child by careful control of his education and environment based on an analysis of the different physical and psychological stages through which he passed from birth to maturity. He also believed we can make good citizens out of training. From the first moment of life, men ought to begin learning to deserve to live; he finds himself reasons why he is living. Jean-Jacques Rousseau (1762) Émile (1911 edn.), London: Dent, pp.6. Jean-Jacques Rousseau (1762) Émile (1911 edn.), London: Dent, pp.6. Now each of these factors in education is wholly beyond our control, things are only partly in our power; the education of men is the only one controlled by us; and even here our power is largely illusory, for who can hope to direct every word and deed of all with whom the child has to do. Viewed as an art, the success of education is almost impossible since the essential conditions of success are beyond our control. Our efforts may bring us within sight of the goal, but fortune must favor us if we are to reach it. What is this goal? As we have just shown, it is the goal of nature. Since all three modes of education must work together, the two that we can control must follow the lead of that which is beyond our control. * CONCLUSION Education is really vast. I can say that I agree with both philosophers, all of us should be educated for education is the grounds for gaining knowledge and wisdom. It is an important tool that can be used for the success of your future. The more you are educated while you are young, the better chance youll have at gaining a successful career. Being educated is being well-informed. Once you have made the decision to attain an education, certain virtues must be possessed. You must be motivated by something, whether it is money, power, or just the desire to learn. It is motivation that drives you to learn new things and to expand your horizons. You must prepare for an education. For everything that you want to know, there is something else you need to know first. It’s like before you can be proficient on a piano you must know music, and before you can be proficient on a computer you must learn to use a keyboard and a mouse before you can dance you should have training grounds. Education is the key to success. * BIBLIOGRAPHY * Phaedo, 82c; and The Republic, book VII, 518d, both in Plato, Complete Works, ed. JohnM.Cooper * Jean-Jacques Rousseau (1762) Émile (1911 edn.), London: Dent, pp.6.