RSA encryption :: Mathematics Math

RSA encryption All over the world there are millions of people use credit card and on-line shopping. Every individual gets different numbers for credit card and for transcription of on-line-shopping. Where did all this number come from? Are the numbers in order? No, those numbers are made by RSA algorithm. RSA encryption is the foundation of public key cryptography security products. For example, credit card companies use the RSA algorithm for customers’ individual online WebPages. The credit card companies publish a big number on WebPages, which is made by big prime numbers using the RSA algorithm. Since neither computers nor people can factor such big numbers, the RSA encryption system has secured many customers’ information. The RSA encryption is related to the cipher of Julius Caesar (1300s) that shifts three letters to encode messages. The cipher of Julius Caesar was used in war to send messages securely. Here is how Caesar encodes his message using the cipher. First Caesar assigned A through Z to 0 through 25. For instance A is zero. Second, add three to each numbers. Then, Caesar changed number into Alphabet again. The problem of the cipher of Julius Caesar is that it can be easily decoded by anyone because shifting three letters is not that hard to decode. However, the RSA system is much safer than the Caesar system because the RSA system uses huge numbers made by two big prime numbers using a special formula. RSA is named after three researchers( Ronald Rivest, Adi Shamir, and Leonard Adelman) from MIT. They searched for implementation to complete PKC system and found the RSA system among 40 candidates of formulas. PKC is the enabling technology for all Internet security and the increasing use of digital signatures, which are replacing traditional signatures in many contexts. However, RSA is better than PKC because RSA doesn’t need digital signature. As a result, the RSA algorithm turned out to be a perfect fit for the implementation of a practical public security system. In 1977, Martin Gardner first introduced the RSA system. After 5 years, company RSA used secure electronic security products. Nowadays many credit companies of all over the world use the RSA system or a similar system based on the RSA system. Why is the RSA system considered to be secure? As I mentioned before, neither computers nor people can factor really big numbers. Although the computer is suitable for calculating huge numbers, computers can’t factor numbers made by the RSA algorithm.

America Needs Its Nerds Essay

The socially and physically inept, the outcasts, often associated with computers and books- these characteristics constitute the stereotype of the average geek. Students are afraid to reveal their identities in an environment among their peers because of the fear of being an outcast among the idolized jocks. In an excerpt from â€Å"America Needs Its Nerds† Harvard student and writer Leonid Fridman expresses his disgust for the unjust treatment of individuals who are essential to our country- the geeks. He addresses the American public with a call to action to put geeks into their deserved positions, giving them hope and motivation to express their own identities. Fridman utilizes irony when discussing how even Harvard students are being picked on, as well as the compare and contrast between America’s discouraging treatment of the nerd to East Asia and China’s praising of them, to represent how the fear of social rejection has forced these mistreated intellects t o hide their academic capabilities. Leonid Fridmen is disappointment with the fact that even at Harvard, one of the top Ivy League colleges, students are still picked on because of their levels of intellect. It is ironic that even at one of the top colleges in America where nerds and geeks dominate the realm of the school that â€Å"anti-intellectualism is rampant†. Social standing competes with intelligence even at the most academic institution, showing America that students are â€Å"ashamed† of their intellect because of the negative stereotypes society degraded them with. Fridman also employs irony when referring to â€Å"get[ting] wasted at parties† by describing how nerds avoid damaging their brain and bodies, but are punished socially for not  physically hurting themselves. Fridman’s call to action addresses the American public as being erroneous in their actions of idolizing the nonintellectual while demeaning the studious intellectuals when he compares America’s academic values to those of East Asia’s. In America, athletes and celebrities are rewarded and more prevalent in society then those interested in pursuing academics. With these characteristics of our society, it is impossible to â€Å"compete in the technology rate† or be a â€Å"leading political and cultural force† with other countries who encourage academics rather than reject the individuals who excel in it. Fridman’s belief of demeaning the intellectual is a continual paradigm in our society today. In 2003, Arnold Schwarzenegger was elected to be the Governor of California; however, it was primarily for his name recognition as a body builder and film star, lacking any experience working in government. Although Schwarzenegger lacked the intellectual knowledge he needed, he was elected because the public idolized him. The public is more interested in the media and athletics and neglect to realize the important impact researchers and intellects have on our world. Colleges pay college athletic coaches more than the professors working at an institution. Americans pay more on professional sports then they do to fund cancer research or education. As USA Today wrote, â€Å"You can get a Nobel Prize at your university and you won’t get anywhere near that attention. And so I think between the public and the media, they are telling us what they value.† The public is involved, and often times addicted, to athletes or social media and reject the academically motivated as outcasts from the ideal society. Unfortunately, this public is unaware of the capabilities of academic achievement and the progress it has brought us in our world.

Formalistic Analysis of Hills Like White Elephants

In an analysis of the story â€Å"Hills like white elephants† by Ernest Hemmingway, one is forced to take a deep look at the hidden meanings embedded in the story. Considering the point of view, the significance of the location and its relevance to the story, the structure of the text, the symbolic meaning of the two landscapes and the title of the story, the entrails of the story are exposed. Hemmingway’s story is written in an objective or dramatic point of view. The story is told primarily through dialogue. The narrator has emotionally distanced himself from the characters, and the true feelings and opinions of the characters are revealed in little clues as the story progresses. The narrator acts solely as a reporter of the chain of events†¦show more content†¦She says, Everything tastes of licorice. (Sweet)†¦all the things youve waited so long for, like absinthe (bitter), the combination is bittersweet. A deeper reading leads to a new understanding of the symbolic meaning of the two landscape descriptions. They were in stark contrast to each other. One side was barren and arid, the other green and fertile. â€Å"The valley of the Ebro was long and white... there was no shade and no trees†¦ On the other side, â€Å"were fields of grain and trees.† These opposing landscapes symbolize the contrasting options available to the couple. The dry side of the valley represented the choice to abort the unborn child and continue with an empty life filled shallow experiences, â€Å"(looking) at things and (trying) new drinks.† The fertile side of the valley represents the life the woman desires, one filled with family and meaningful moments. The story then shifts to the station which was between two lines of rails† this represented the two opposite directions in which they could have traveled, and the choice that lay in each direction, Madrid being the place of abortion, and the continuity of the ‘empty’ life they were used to together, or toward Barcelona, a new start, a new beginning, with a new life. So railroad station represented a crossroads or junction at which they had to cross. The title of the story was simile. The title â€Å"hills like white elephants† also represented the choice that the couple had to make. AShow MoreRelatedANALIZ TEXT INTERPRETATION AND ANALYSIS28843 Words   |  116 Pagesï » ¿TEXT INTERPRETATION AND ANALYSIS The purpose of Text Interpretation and Analysis is a literary and linguistic commentary in which the reader explains what the text reveals under close examination. Any literary work is unique. It is created by the author in accordance with his vision and is permeated with his idea of the world. The reader’s interpretation is also highly individual and depends to a great extent on his knowledge and personal experience. That’s why one cannot lay down a fixed â€Å"model†Read MoreTop 1 Cause for Project Failure65023 Words   |  261 Pages [Mathew@PM4K] @ http://www.anishmathaimathew.blogspot.com 2. [pic] Nico Viergever Independent Management Consulting Professional / Trainer PRINCE2 MSP Another discussion I recently saw on LinkedIn asked a question like: how did we manage to put a man on the moon 30 years ago, while today we can not produce proper software. For me this question shows the real reason for faillure. Most projects focus on producing a rocket (only focus on delivery). Successful projects