Rsa Public Key Essay Example for Free

Rsa Public Key Essay Asymmetric algorithms rely on one key for encryption and a different but related key for decryption. These algorithms have the following important characteristics: †¢ It is computationally infeasible to determine the decryption key given only knowledge of the cryptographic algorithm and the encryption key. In addition, some algorithms, such as RSA, also exhibit the following characteristics: †¢ Either of the two related keys can be used for encryption, with the other used for decryption. A public key encryption scheme has six ingredients: †¢ Plaintext: This is readable message or data that is fed into the algorithm as input. †¢ Encryption algorithm: The encryption algorithm performs various transformations on the plaintext. †¢ Public and private key: This is a pair of keys that have been selected so that if one is used for encryption, the other is used for decryption. The exact transformations performed by the algorithm depend on the public or private key that is provided as input. †¢ Cipher text: This is the scrambled message produced as output. It depends on the plaintext and the key. For a given message, two different keys will produce two different cipher texts. †¢ Decryption algorithm: This algorithm accepts the ciphertext and the matching key and produces the original plaintext. The essential steps are as the following: . Each user generates a pair of keys to be used for the encryption and decryption of messages. 2. Each user places one of the two keys in a public register or the other accessible file. This is the public key. The companion key is kept private. As figure suggests, each user maintains a collection of public keys obtained from others. 3. If Bob wishes to send a confidential message to Alice, Bob encrypts the message using Alice’s public key.

A Working Party :: essays research papers

This poem is about a 'normal', 'average' man who came to the trenches only 3 hours before, and then is killed as he is doing his job of piling sandbags along the parapet.Throughout this poem, Sassoon appeals to the emotions of the reader by trying to create an emotional attachment between the reader and the young man. He explains that "He was a young man, with a meagre wifeAnd two small children in a Midland town;He showed their photographs to all his mates,And they considered him a decent chapWho did his work and hadn't much to say,And always laughed at other people's jokesBecause he hadn't any of his own."Sassoon deliberately describes the man clearly and significant detail, which makes the reader realise that this man was just a normal man, probably not unlike the reader, and makes the reader see the pure tragedy when the man dies. "He was just a simple man, who never did anything to hurt anyone" is the response Sassoon wants the reader to have, and feel the i njustice of the man's death.Sassoon specifically starts the poem off slowly, describing the men slowly making their way down the trenches, slipping into the mud and squeezing past other soldiers returning from the front line. Then, he ironically rushes the man's death in the last two lines, after the man is thinking how slow time passes. The man's sudden death shocks the reader and shows them how suddenly life can be taken away."And as he dropped his head the instant splitHis startled life with lead, and all went out."Throughout the poem, Sassoon uses excellent descriptions to involve the reader in the 'action' of the poem, and with the man. He clearly describes the men making their way down the trench towards the front line - "Sliding and poising, groping with his boots", "...splashing wretchedly where the sludge was ankle deep". Language like this almost takes the reader there, and again makes the reader identify with the character. Sassoon also uses the same strong descriptions of the area to make the reader feel like they are in the trenches along with the man - "Sandbags bleached with rain", "... pawed sodden sandbags of chalk", "White faces peered, puffing a point of red", "... the gloom swallowed...". He uses references to colour, texture and sound to give the reader an understanding of what it felt like to be there.

America in the 60’s: A Personal Account of a Hippie

The sixties was a tumultuous decade.   America went into a war that has lost the support and commitment of the American people.   My interviewee was a college student then and he claimed that he had learned more in the streets than in the four walls of the classroom.While American soldiers were fighting the Vietcong in order to liberate South Vietnam, they at home were fighting the government to bring home the American soldiers.   According to him, â€Å"our soldiers were just being slaughtered in the battle for nothing. He believed that it was not a war that America should fight.While people gather around together in rallies and movements, there was a diversity of causes people fight for. While my interviewee was particularly concerned against the Vietnam War, his interactions with other activists led him to realize other important social ills that needed to be addressed.He learned about the civil rights movement and feminist movement. The former were basically black people f ighting against racial discrimination and seeking for equal rights particularly the right to suffrage.   The latter on the other hand, were fighting against women’s rights.   But in many cases, they assemble and joined together to stage a mass movement.The rallies sometimes end up violent with the police committing brutality in dispersing the activists. But joining rallies were like a fad.   It was fun, adventurous and liberating. In fact, the violence that occur form part of the thrill of joining rallies.   Accordingly, many of those who joined were not really into the causes of the movements but were there for kicks.   Rebellion seemed part of the youth culture of the sixties in order to be hip.One of the most unforgettable experiences my interviewee had was his attendance to the most well known musical event that practically defined the 60’s, the Woodstock festival in 1969 billed as a three day celebration of music, peace and love (Schomp, p65).According t o him, over half a million people participated in the festival.   As a dedicated activist, the Woodstock was really a united protest action against the Vietnam War but the media just sensationalized the nudity, drugs, and sex committed by the hippies in the event.In my short interview with this acquaintance of mine, the events in the 1960’s seemed closely interlaced with each other and everything seemed to happen simultaneously unlike in the textbook where history is presented like separate and isolated events.The 1960’s was indeed turbulent and riotous per my personal evaluation of my history book and as admitted by my interviewee himself.   However, the book wasn’t able to capture the enjoyment and the ventures that people experienced during that time.My interviewer commented that the sixties was indeed a time of serious transition in the American political sphere, but it wasn’t that dull, boring and uptight serious as written in the pages of a book .   The youth was daring yet were still having the time of their lives.Work Cited:Schomp, Virginia. The Vietnam War. 2nd edition. Marshall Cavendish, 2001, pp64-66   

Global Business Cultural Analysis China Essay - 4992 Words

Global Business Cultural Analysis: China Terry Lushbaugh BUSI 604 International Business Liberty University Abstract The following examines the nation of China and its trade relations with the world, particularly the United States. The focus is primarily on China’s culture and how it impacts business dealings with other countries. Areas examined include: Religion, Management Philosophy, and Business Etiquette. Also discussed is China’s growing status as a world super power and how that has impacted the global business landscape. Likewise, various trading partners are examined and the effects of doing business with China, specifically for the United States. Points of concern for the United States are things such as the†¦show more content†¦At the core of any nation’s culture are its religious beliefs. In China there are the â€Å"Three Jewels† Confucianism, Daoism, and Buddhism, as described in Lopez (1996). There are small numbers of people practicing other religions such as Christianity and Islam, but these are the three dominant beliefs of the region. While they are separate in content, they have coexisted for several thousand years. Lopez (1996) goes on to say, â€Å"Historical precedent and popular parlance attest to the importance of this threefold division for understanding Chinese culture†¦Buddhism is the sun, Daoism the moon, and Confucianism the five planets†¦suggesting that although they remain separate, they also coexist as equally indispensable phenomena of the natural world.† Each belief system stands alone, and at the same time needs the other(s). Confucianism The religion of Confucianism begins, of course, with Confucius whose Chinese name was Kong Qui and who lived from 551 B.C. to 479 B.C. Surprisingly Confucius was merely a low level government worker. He did not exactly view himself as the founder of a school of thought. Regardless, Confucianism is the most influential belief system in Chinese culture. It provides the rules which govern the social behavior of the individual. The basic teachings of Confucius are grounded in the Five Constant Virtues: humanity, righteousness, propriety, wisdom, and faithfulness. Confucius went on to define five basic human relations andShow MoreRelatedMultinational Companies : An Organization Essay1536 Words   |  7 Pagesfrom domestic to globalization. However, many of multinational companies will be facing different dilemmas and obstacles towards to international market. Additionally, many countries have different approach towards to business market. In fact, when domestic company moving to gl obal economy they need to involve in organizational learning and adjust to cooperate well with people and market. 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