Cryptography
Cryptography is the science of preparing communication intended to be intelligible only to the person possessing the key or method of developing the hidden meaning by cryptoanalysis using apparently incoherent text (Encarta Encyclopedia). The movie mercury rising is a good example of cryptography. It’s about a little boy who is autistic. The little boy can do puzzles such as cryptography easily. One day while on the computer the boy cracks a highly secretive government code. The governmental agency wants the young boy found and killed for cracking the code it took years to write.
Cryptography started a long, long time ago with Julius Caesar. When he wanted only his people to know something he used cryptography. He did this by replacing A’s with D’s, B’s with E’s, and so on down the alphabet. This was known as "shift by 3", for obvious reasons. The Jewish writers also used a code of their own called Atbash. They did it by reversing the alphabet, they used the last letter of the alphabet in place of the first, the next to last for the second, and so on. Atbash is exemplified in the Bible,
Jeremiah 25:25, where "Sheshech" is written for Babel (Babylon). As you can see, cryptography has been used for many years and is continuing to become more high tech.
The term cryptography is sometimes restricted to the use of ciphers, that is, to methods of transposing the letters of plain text (unencrypted) messages, or to methods involving the substitution of other letters or symbols for the original letters of a message. And to various combinations of such methods, all according to prearranged systems. Ciphers of various types have been and can be devised. All of them fall into to one of two categories, transposition and substitution. In transportation ciphers, the message is usually written, without word divisions. They are rows of letters arranged in a rectangular block. The letters are then transposed in a prearranged order such as by vertical columns, diagonals, or spirals.
There are two types of ciphers, simple and complex. In a simple substitution cipher is particular letter or symbol is substituted for each. In a multiple substitution (polyalphabetic) ciphers, a keyword of number is employed. And in more complicated polyalphabetic systems, the letters of the keyword may tell which of a series of mixed substitution alphabets is to be used to encipher each letter of the message.
After two years of working odd jobs after he got out of highschool, he was appointed to the Naval Academy, but was too old to attend. In 1910, he went to an appointment to West Point. Eisenhower was not a good student but not a bad student, he was an average student at the academy, when he went to the military community he surprised them with exceptionals ability. he got hurt a lot during sports, so he was going to have to quit the military due to injuries. Ike ranked 61st out of 164 in his class in the class of 1915. During World War I , he was a training instructor and commander of a training center. After the war Ei...
Southwest airlines is one of the most widely respected companies among those profiled by Firms of Endearment. They are recognized for having one of the best corporate cultures, which is emphatically encouraged from the top down. Southwest’s model clearly exemplifies the concept of servant leadership, and we will elaborate on how this creates a firm of endearment.
The Rock and Roll Hall of Fame and Museum, Inc. "Aretha Franklin Biography." 2014. Rock and Roll Hall of Fame Museum. 21 April 2014 .
Eisenhower’s military experience (one of the key reasons for him leading the Allies into Operations Overlord, Torch, and Avalanche) started when he was sent to boot camps around the U.S. to prepare troops for World War I. Eisenhower, despite his wishes, never saw foreign action in World War I, but he did have many stations where he trained. He was assigned to deploy to France, but a week before he was set for departure, the armistice ending World War I was signed. In turn, h...
Television is a distraction for children and can hurt their cognitive abilities if they watch too much because it is non interactive. In the International Journal of Behavioral Nutrition and Physical Activity Helena Duch and colleagues mentioned that the American Academy of Pediatrics advises, “parents avoid exposing children 2 and under to screen media, a nationally representative survey found that 68% of children under the age of 2 use screen media in a typical day, and that average screen time was 2.05 hours per day” (Dutch et al 2). Children live in a world full of screens, ranging from iPhones, TVs, to tablets and computers. Drastic brain development occurs during the ages of 1-3 and exposing them to too much screen time of any kind can have negative effects on them (Hopkins 27). Putting them in front of a screen also steals away from times they could be talking, playing, and interacting with their surroundings. Pediatrician Dr. Michael Rich claims that shows d...
After World War I he was stationed at the Panama Canal Zone with General Fox Conner. While being stationed at the Panama Canal Zone, General Conner helped Dwight D. Eisenhower improve his military knowledge and strategies. General Conner urged him to go to a very prestigious army school, the Command and General Staff College in Fort Leavenworth, Kansas. General Fox Conner wanted Dwight D. Eisenhower to go to the school so bad he...
If the short haul passenger was the backbone of Southwest Airlines success, then their 737s were the lifelines that supported it. By choosing the 737 as the airplane for all of Southwest's flights, the company saved time and resources in training its employees. The crew could be easily substituted for one another due to the extensive training on the 737. Low costs and, therefore, low fares are an enormous competitive advantage, when combined with their high-quality and loyal workforce. A very unique culture was found at Southwest Airlines among all of its employees.
Codes, on their surface, reveal little. While they may take the form of numbers, letters, bytes, or symbols, the primary goal of most codes is either to conceal or condense information. In the context of codebreaking, the codes that pique the most interest are, of course, the ones that hide a message from unauthorized eavesdroppers. The role of the codebreaker is not always the honest one, for it is his/her job to undo the careful manipulations of the sender to uncover, without the key for the lock, what the message contains. To do this, he/she must rely on intuition, on reasoning, and sometimes on “luck,” to get his/her way.
Even though Southwest offers no-frills, there is still a high degree of customer satisfaction that continuously builds customer loyalty for the company. As mentioned, Southwest offers low prices on their airplane tickets. Also, Southwest is renowned in the airline industry for its short turnaround time on arrivals and departures. And since people's biggest concern nowadays is money and time, having low price airline tickets to cater their traveling needs in a shorter period of time will surely satisfy them. Moreover, aside from the low prices offered, what attracts to customers is Southwest’s way in dealing with them. The employees of the airline treat their customers well and really listen to their needs.
82).” According to Walter Ong, the act of communication through writing heightens ones consciousness and begins to change the way in which the writer thinks. This in turn facilitates the development of increasingly sophisticated technological advancements. Early pictographs were typically monotone and very simplistic in nature. However, as the technology evolved, humankind developed multi-hued writing media that improved the visual accuracy of the images created and subsequently improved the complexity of the message delivered. Essentially more visual detail equals a more complex symbology and abstraction. Some major milestones in the evolution of communication technology include the simplification of earlier literal depictions in the late Paleolithic era, the development of the first “alphabets” as quasi-abstract symbols representing the basic sounds of spoken language. These early alphabets were extremely complex and cumbersome until the Phoenicians developed a “totally abstract and alphabetical system of twenty-two simple phonetic signs, replacing the formidable complexity of cuneiform and hieroglyphs (Higgins, 2003).” The inhabitants of Greece and Rome adopted this system of writing which was in effect by 1500 B.C. and later developed what we know as the
In the airline industry, Southwest Airlines is considered a true innovator. By shaking up the rules of flying and improving upon inefficient industry norms, Southwest has quickly grown by leaps and bounds. From the very start, Southwest Airlines' goals were to make a profit, achieve job security for every employee, and make flying affordable for more people (Southwest,2007). Southwest has not strayed from these goals. It does not buy huge aircrafts, fly international routes or try to go head to head with the major carriers; and thanks to a great planning, Southwest airlines has become the most successful airline company in the U.S., if not the world.
Since CEO Gary Kelly took the reins of the company back in 2004, Southwest has maintained and enhanced the company’s ability to offer customers a great flying experience for low fares. This effort start early in Mr. Kelly’s tenure when he identified four success factors
Wilson, T. B. (1999). Rewards that drive high performance. Retrieved online February 18, 2007, from: http://www.wilsongroup.com/ecr/case/SouthwestAirlines.pdf.
Encoding is a set of rules that standardizes how we represent letters and emoji in a way that computers understand — binary.
"History of Cryptography." History of Cryptography. Cypher Research Laboratories, 17 Apr. 2013. Web. 20 Nov. 2013. http://www.cypher.com.au/crypto_history.htm.