Free Essays on Cryptography, Protecting E-Commerce

E-commerce is the vehicle that allows a consumer to navigate by means of the Internet to a merchant's web site. There, the consumer decides what goods or services to purchase, and is then routed to an online transaction server, where all of the information provided is encrypted. The diversification of the Internet and expansive capability to assist the efforts of E-commerce is predicated on the safety and integrity of information being shared. This electronic connectivity must provide ways of protection and prevent the tampering or reading of important information. This responsibility is eased by an encryption technique. One of the several techniques for ensuring privacy of files and communications is Cryptography. Web security is a complex topic, encompassing computer system security, network security, authentication services, message validation, personal privacy issues, and of course cryptography There are two kinds of cryptosystems: symmetric and asymmetric. Symmetric cryptosystems use the same key (the secret key) to encrypt and decrypt a message, and asymmetric cryptosystems use one key (the public key) to encrypt a message and a different key (the private key) to decrypt it. Asymmetric cryptosystems are also called public key cryptosystems. Cryptography is the science of encoding information into a form that is unreadable and making sure only the intended individuals are capable of decoding the information back into its original form. This is usually done by using an encryption algorithm and a decryption algorithm (these two are often the same) and very often a secret key. Some of the early cryptographic systems did not use a key but instead kept the algorithm itself secret. The message sender uses the encryption algorithm and the key to encode the message, and then sends it to the receiver. The receiver then uses the decryption algorithm and the key to turn back the encrypted information into its original form and ... Free Essays on Cryptography, Protecting E-Commerce Free Essays on Cryptography, Protecting E-Commerce E-commerce is the vehicle that allows a consumer to navigate by means of the Internet to a merchant's web site. There, the consumer decides what goods or services to purchase, and is then routed to an online transaction server, where all of the information provided is encrypted. The diversification of the Internet and expansive capability to assist the efforts of E-commerce is predicated on the safety and integrity of information being shared. This electronic connectivity must provide ways of protection and prevent the tampering or reading of important information. This responsibility is eased by an encryption technique. One of the several techniques for ensuring privacy of files and communications is Cryptography. Web security is a complex topic, encompassing computer system security, network security, authentication services, message validation, personal privacy issues, and of course cryptography There are two kinds of cryptosystems: symmetric and asymmetric. Symmetric cryptosystems use the same key (the secret key) to encrypt and decrypt a message, and asymmetric cryptosystems use one key (the public key) to encrypt a message and a different key (the private key) to decrypt it. Asymmetric cryptosystems are also called public key cryptosystems. Cryptography is the science of encoding information into a form that is unreadable and making sure only the intended individuals are capable of decoding the information back into its original form. This is usually done by using an encryption algorithm and a decryption algorithm (these two are often the same) and very often a secret key. Some of the early cryptographic systems did not use a key but instead kept the algorithm itself secret. The message sender uses the encryption algorithm and the key to encode the message, and then sends it to the receiver. The receiver then uses the decryption algorithm and the key to turn back the encrypted information into its original form and ...

Annotated Bibliography Essay Example | Topics and Well Written Essays - 1500 words - 1

Annotated Bibliography - Essay Example But who is she hanging out with And who is lurking online in the shadows of MySpace leering at the profiles of these vulnerable tweens While some have hailed MySpace as the greatest social experiment of the century, others have called it a Sears and Roebuck catalogue for pedophiles. Are these children age 8-13 years old safe on MySpace Or are websites like MySpace potentially dangerous for the pre-teen crowd The rising popularity of MySpace has made this a timely and important question. Parents struggle to keep up with their Internet savvy kids who are always one step ahead. Security blocks and parental controls may be subverted when parents can't maintain a 24/7 vigil on their 10-year-old. Reports have begun to proliferate as predators find ways into the MySpace domain and use it as their personal hunting ground. Still, MySpace contends that it has taken steps to curtail the dangers and has committed to making it a safe meeting place for all ages. The public and parents need to be certain that the realm of online social networking is indeed safe for children. This paper will attempt to answer three main questions. First, the paper will try to determine if a 13-year-old girl can sign up on MySpace and create the profile of an 18-year-old girl. This will determine if an unsupervised 13-year-old girl is safe in this environment. Second, it will try to establish whether a 35 year old male can register and create a profile of a 15 year old girl. This will determine whether any underage girl on MySpace is out of reach of predators. Third, the paper will consider whether the amount of information contained in the typical underage profile is useful to predators. This will examine the ways in which a pedophile might exploit what appears to be innocent information. The research will be conducted by gathering information from credible experts on the topic of teenage digital networks. It will look at the statistics they present and the unique point of view that they offer. It will draw on personal experiences of those that have been members of MySpace. There will be no actual attempt made to register with MySpace under false pretenses just to prove it can be done. Rather, the paper will interview a computer security expert to gain insight into what flaws there may be in MySpace's registration and profile process. Bibliography Carlotti, Richard. Personal Interview. 21 Feb. 2007. Carlotti is a computer securities expert with a pharmaceutical chain. He has analyzed the MySpace registration process. He contends that to provide adequate security, the site would be unusable except by professionals. He said, "If it is designed to be used by teen-agers, the security needs to be geared toward them. Which means any one with a 13 year old mind can subvert the system". He further stated that there is no practical way to do age checking on the Internet and there is nothing available in the near future. He said identity verification on the Internet "could only be accomplished with expensive biometric techniques such as fingerprint readers or retina scans. These are the kinds of things the Defense Department uses, but not MySpace". Carlotti contended that the present registration method at MySpace is the honor system. It takes what you give it. He said that the limitation of contacting children under 18 merely requires a name and

Movie Comparison of Citizen Kane and Schindlers List Essay

Movie Comparison of Citizen Kane and Schindlers List - Essay Example The researcher of this essay contrasts and compares two significant and well-known movies, that are ‘Schindler’s List’ and ‘Citizen Kane’. There are two powerhouse films, that have made their mark as two of the greatest films in the world. The researcher mentiones in the essay that these movies stamped the names of their directors as forces to be reckoned with in their field. ‘Citizen Kane’ was Orson Welles in every essence of that statement. The researcher provides his opinion on the topic and states that plot was very interesting from beginning to end. It is one that makes the audience think and takes them into a journey. Essentially, as good films go the underlying theme centers on man and how you could easily lose grip of reality and how with all the money of the world you could remain unfulfilled. The story plays on the materialistic propensity prevalent in society, even in the 1940s. But what ‘Schindler’s List’ r elentlessly communicated was a far more humanistic tug on a person’s nature. This movie showed human beings at their worst and a man at his best. The emotional story and how Spielberg was able to transform it into heart wrenching film made it memorable and uplifting more than ‘Citizen Kane’ was able to do. The researcher then concluds that two films tackle wealth, power and influence but where one highlights a man’s fall and the subsequent inconsequentiality of his life because of greed, the other showcased how a man was able to save lives with the same virtues and transcend himself into being a person of hope.

Final Growth Report Essay Example | Topics and Well Written Essays - 500 words

Final Growth Report - Essay Example I found many things I had forgotten about, but overall have learned many important things about me and my personal growth as a person. I have found myself, more and more recently, pushing myself to the very edge of my existence, both spiritually, mentally, and physically. I want to see exactly what I can do, how I tick, and how long I can make myself tick for. I find myself taking on challenges and to much work, in hopes of keeping myself busy and occupied. I may slip up a little here and there, by I try to spread myself out to many different possibilities, hoping to expand my fields of study and learning as far as I possibly can. I also have found that it is more myself, that everyone else who I let make my challenges. Not saying I would turn down one that comes to me, but I keep raising the bar, pushing the tally, and raising the ante, to keep myself moving fast and foremost towards the challenging goals I have set for my personal growth. I also find myself jumping to leadership positions I would have once shied away from, and feel the need to be the leader, as well the want to take on the role when I see what I consider to be insufficient leaders to be doing a job I feel I could be doing much better. Well this rashness and bravado of myself may be a downtrodden effect of my ego, it also helps serve how well I strive for the best I can achieve. I also seem to feel a changin

Need for Security Essay Example for Free

Need for Security Essay Security and control is needed in a custodial environment as people are sent there for a reason so if they were allowed to do whatever they want then it wouldn’t be a punishment. An advantage of having control is that the staff will always have authority over the prisoners, which is vital as they must be able to enforce discipline. Another advantage of having control is that they can keep an account of offences that prisoners have committed. This will come in useful if the prisoner has adjudication, it will also come in usual when reviewing the prisoner. Having the IEP scheme in a prison is a good thing as it encourages the prisoners to behave, this will make security and control easier to manage as the prisoners aren’t doing things they shouldn’t be. It will also make prison life for the prisoners more enjoyable, which is an advantage as it’s another reason why they won’t misbehave. Searches are needed in prisons to ensure that prisoners aren’t in possession of any prohibited items, if they do have this then it could lead to potentially dangerous situations. An example of this is if a prisoner has a weapon then they may use this against other prisoners or against staff. It is also important that searches are carried out on visitors of the prison as they will try their hardest to smuggle items in for prisoners. This is an advantage as it prevents prisoners from having things that shouldn’t, having an item like drugs will lead to gangs within the prison and this is something that must be avoided. Another aspect of security which is a big advantage to the prisoners and the officers is the dynamic side of security. Prisoner officers monitor the prisoners to ensure that they are coping with life in prison; if they aren’t coping well at all it could lead to them becoming suicidal. Prisoners could self-harm or even commit suicide if the prison officers aren’t keeping an eye on them. It is the duty of the prison officer to ensure that they look after the prisoners so letting this happen would mean they aren’t carrying out their job efficiently. Having dynamic security is a big advantage as it stops this from happening.

Crash Movie Analysis

Crash Movie Analysis Paul Haggis In 2004 wrote and directed the award winning movie Crash concerning a variety of intertwine experiences concerning racial relations and the levels of socioeconomic status of the varied cast of characters. This movie deal with how humans being contract with actual life situations and tackles how racial injustices and stereotypes effect our society by sourcing a division of customs, disregarding civil and human rights, and representation how racism can source cultural, moral, and economical distress. This comprehensive essay will deal with the cinematic constituents utilized right through the film, and offer a critical examination on the variety of components and methods utilized to generate this powerful and compelling film. Crash is a film that engages more than a few diverse stories and plots that all direct to somehow hook up the characters to each other in a sequence of incidents that occur throughout 2 days in California. America’s ever- rising melting pot is particularly signified in the movie as the viewers are introduced to a black detective of LAPD, two mischievous black car thieves, a white district lawyer and his discriminative wife, a white racist hit cop and his trainee partner, a black director of Hollywood and his wife, an furious owner of Persian shop and his family, and a blue-collar Hispanic man and his adolescent susceptible daughter. The characters unconnected yet interlinking stories were an extremely distinctive and efficient technique utilized to narrate this story in a provoking and extremely appealing manner. The theme of the movie is connected to the variety of features of prejudice. The mainly invasive theme is racism. The white copwhose father lost his janitorial business owing to special affirmative action practicesis fuming at African-Americans. A youthful African-American carjacker spurts the provocative Black Power expression of the 1970s. Stereotyping is an additional subject in the movie. For instance, the white wife of DA’s supposes the locksmith of being a member of gang since of his background. The conflict of cultures is demonstrated by the owner of Iranian store who construes the well-meant comments of the locksmith regarding a dented door as a shake-down for additional money. The subject of class difference is discovered in the distinction of characters. For instance, the African-American director and his wife are higher class in expressions of income and education even as the African-American police officer has afforded his means into a middle-class work and his bro ther a criminal and his mother is a drug addict. The DA’s wife, who exists in the well-off area of Brentwood of Los Angeles, is continuously grumbling in relation to her housekeeper/nanny, a stressed Latina. Cruelty is an additional idea investigated in the movie: a police officer sexually disgraces a naive woman, an HMO envoy erratically deny services to a anguish man, an annoyed man acquires a gun to obtain revenge in opposition to an naive man he believes has offended him, and an additional man is occupied in the contemporary slave trade. In actual fact, the occurrence of people’s cruelty is maybe the majority constant pattern. The stereotyping in opposition to one another is their incorrect beliefs regarding people; particularly about the diverse race (Sole, 2011).On the other hand, nevertheless, the movie as well encloses images of people’s humankind in addition, as the housekeeper approaches to the assistance of her employer, the police officer dangers his life to save the same woman he battered, and the carjacker confers up a prospect to sell a people van-load into slavery. Everybody engaged in the making of this movie added to the cinematic experience. In Crash The preponderance of the actors were most well-known and noticeable celebrities in Hollywood, for instance Sandra Bullock, Matt Dillon, Don Cheadle, and Terrence Howard. These movie stars sneakily carried the film with their sparkling performances and dramatic ability as they naturally contrived in the course of each scene with ease. The realism depicted by the actors fetched to life their characters and in spite of the susceptible and insecure topics in the movies they manage to fetch every character to life, give them their individual exclusive and separate personalities. In the movie the sound employed a contemporary dialogue and advanced every scene from an additional modern viewpoint. When slang terms were required by the characters it emerged to be utilized in a means that prepared the audience understand and narrate, for instance the dialogues amid the two black car thieves as they speak to each other by means of a apparently offensive word in the expression â€Å"nigger.† The country western and hip hop music being played and conversed by the two car thieves are important to the film since they indicate how music plays a large element in defining race and underlining a lot of diverse stereotypes. The songs that were element of the film soundtrack are played at instants that were important to the scene. The outstanding acting was not the merely perceptible constituent that let this award winning movie to connect the viewer. The movie begins with the out of focus shots of the car headlights which might perhaps be setting up the viewers to observe that the film characters will not be what they appear and might as well lack spotlight right through the movie as well. The cinematography about the preponderance of the movie is delicate as the director choose to spotlight additional on close-ups and the rare feelings on the actor’s expressions and faces. There are extremely few scenes where several action is essential to bear the film, however the scenes that do include action, for instance the carjacking attempted of character of Terrence Howard’s, Cameron, and the resulting chase of police in the course of Los Angeles, it was steady with the storyline and essential to the on the whole plot. The viewpoint shots that were utilized in the movie bring the observers additional i nto the action of the movie and decreased the space between the characters and audience. This permitted the a variety of stereotypes and depictions of the characters to turn out to be additional pronounced, and although a few of the stereotypes were a bit decorated as it relates to society of present, the implied realism was in reality deeply influential. Even though the in the film Crash cinematography is rather basic consecutively to spotlight additional on the acting, storylines, and on the whole subject matter of the movie, the editing of the movie is so elaborate that it is roughly offering the feeling of little movies in a movie as the scenes leap from every storyline. In the majority films the cinematography can effectively append credibility to the plot and development of character, letting a movie to have radiant construction and sensual detail. In Crash there are not numerous special effects, or contrasting lighting designs that have any minor effect on the appearance or sense of the movie. The film has several instants of low key lighting and the scene is mostly developed with the urban scenery of modern Los Angeles. Conclusion Stereotypes are not vague since they are all fake, other than since they are habitually surrogated for real depictions of individuals and experiences of life. Crash is capable to deal with a few stereotypes in a way that is interesting, yet thinking provoking by means of constituents designed to generate art in the course of cinema. The means this movie deals with societal prejudices and racism goes past the criticism we might be familiarized to in this age of conventional media and social networking openings, where anybody is capable to sight a huge selection of colorful social comments in addition to liberally express their free opinions. Other than the cinematic constituents used right through this movie, for instance location, the sound, movement of camera, editing, lighting, soundtrack, and the majority prominently the acting, radiantly contributed to the intersect storylines that modestly permitted the viewers to take a deep glimpse into their individual covert prejudices. References Haggis, P. (Writer Director). (2004). Crash [Motion Picture]. (Lions Gate Entertainment). Harris, Philip; Olson, Aaron; Levine, Deena; Shusta, Robert and Wong, Herbert. (1995). Multicultural Law Enforcement. 28-110 Sole, K. (2011). Making connections: Understanding interpersonal communication. San Diego, CA: Bridgepoint Education, Inc. (https://content.ashford.edu)

Statue of Liberty Ribbon Essays -- Architecture History

Statue of Liberty Ribbon The Statue of Liberty has served as the single most important symbol of the friendship between the two countries and the ideal of democracy since its unveiling on October 28, 1886. At the time it was the tallest structure in America. The statue was originally a gift to the United States. The relationship between the two countries dates back before the United States was an independent country (Kotler p7). The French were one of the first to explore and settle in North America. Louis Jolliet and Jaques Marquette traveled the Mississippi. Renà © Robert Cavelier, sieur de La Salle explored the Great Lakes and established Louisiana. Frenchmen built outposts on the Gulf of Mexico, founded New Orleans, and colonized New France from Louisiana to northeast Canada. In the War of Independence, the Marquis de Lafayette fought with General George Washington. In its final battle at Yorktown, General Jean Baptiste de Rochambeau led the French navy and a land crew. Without French support a victory may have been impossible. The United States returned these favors during t...