Progymnasmata Essay Example | Topics and Well Written Essays - 500 words

Progymnasmata - Essay Example A rundown of 14 activities is remembered for progymnasmataranked arranged by their expanding unpredictability, and expanding request of information required. These evaluations are to be specific tale for example at the point when a people story is rehashed, account that fundamentally follows fiction or verifiable, Chreiai.e. in view of a well known expression or activity, Proverb for example approaching understudies to contend for and against a theme, Refutation that invalidates an account, Confirmation that endorses the story, Commonplace i.e.based on some basic counsel, Encomium that portrays someone’s points, Invective that dislikes some malevolent demonstration, Comparison for example straightforward examination of two articles or creatures, Personification for example the depiction of some anecdotal character, Description that produces graphically a specific subject, Argument that portrays an examination been done for the most part, and afterward Legislation in which cont ention emerges for and illegal. The explanatory activities first beginnings at lower level, understudies are given short trainings for recitations. These activities increments with time and afterward they are trailed by lengthened preparing practices for their own discourse meetings. Thusly of preparing is utilized in two times of craftsmanship; old style and renaissance. The preparation followed the particular request of execution; there is a predefined plan, which is followed to take understudies towards Progymnasmata. Various degrees of preparing as referenced above incorporate; tale, story, chreia, maxim, nullification and some others while this course of execution closes with portrayal, proposal, and defense.(Rapind Intellect Group) Progymnasmata stays mainstream for long time because of its extraordinary methods of usage, little activities are simpler to follow and the degree of understanding increments step by step. At start the preparation for simple summarizing, portrayal and invalidation is given when the

Executive Branch Essay Example for Free

Official Branch Essay The official branch is the most impressive part of government. The official branch makes the president. It additionally gives the president the job of financial pioneer. What's more, he/she can likewise make official requests that have the power of law. These are only a portion of the numerous jobs that make the official branch the most impressive part of government. At the point when the president has the job of president he/she is enabled to go through power to back our international strategy. They are accountable for the military, naval force, flying corps, marines, and the coast monitor. The top administrators of these parts of administration are subordinate to the president. The president is likewise our financial pioneer. He/She manages joblessness, rising costs, high charges and that's only the tip of the iceberg. When casted a ballot into office the president is relied upon to mind of these issues. One key errand the president must achieve every year is to design the administrative government’s spending plan as well. To wrap things up, the president has the job of CEO. He can make an official request, which has the power of law. During his administration, Harry S. Truman needed to utilize an official request in 1948 to coordinate military. The president additionally has the ability to concede pardons. An acquittal is an assertion of absolution and opportunity from discipline. The president has numerous jobs to help maintain our nation in control. From president, financial pioneer, and CEO he/she helps everything run as easily as could reasonably be expected. The official branch is by a long shot the most remarkable part of government, since it helps keep our nation in the clear and copasetic.

Persuasive Essay Topics - How to Write a Persuasive Essay Topic

Persuasive Essay Topics - How to Write a Persuasive Essay TopicUsing language to influence people's thinking is one of the best skills you can learn. It is a skill that has been used to control human emotions and to influence the behavior of others for hundreds of years, so this is no new information.However, you may be concerned that you are not very skilled at writing persuasive essay topics. You may have studied persuasive language on paper, but you may not know how to turn your ideas into a well-written essay. That is why I want to share with you some tips for crafting effective persuasive essays.You must always use a format that is consistent with the tone of your persuasive topics. They need to be closely aligned with the content of your piece. Do not make your words too technical, it will distract from the content of your piece. If you use an academic style, do not be afraid to lean in that direction.Give the reader an opportunity to learn about your authentic ideas. Never try to drown them in detail. Instead, you should give them enough information to allow them to understand what you are trying to say. Without being too specific, you can keep the audience engaged by making them interested in what you have to say.You can also use rhetorical questions and statements to build suspense and drive the point home. Do not always rely on questions or statements. Instead, use phrases like 'You think...' and 'I believe...' or just 'Why do you think...' and 'Because...' to get the point across. When you can elicit a response from the audience, it increases your power as a persuasive writer.Finally, when you are looking for an effective way to write persuasive essay topics, you may want to consider using articles. These are a simple way to appeal to the minds of readers. Instead of writing large paragraphs full of unfamiliar terms, you can use short, straightforward sentences to explain something. They are especially effective in teaching people to think rather tha n just respond. If you have some ideas about the subject matter, you can use article topics to give your readers a better understanding of what you are trying to say.Writing persuasive essay topics is not all that difficult. There are many strategies you can use to bring your ideas to life. All you need to do is be sure that you have a clearly defined, compelling, and quality message. Use the tips above to create a well-written persuasive essay.

Tradition or Cruelty in Shirley Jacksons The Lottery Essay

Tradition or Cruelty in Shirley Jacksons The Lottery Shirley Jacksons The Lottery satirizes barbaric traditions in a supposedly civilized village. As the story begins, the villagers appear to be fairly civilized and carry on fairly modern lifestyles. This is assumed by the mens discussion of planting, rain, tractors, and taxes. The lottery was outdated to such a degree that some may think that the tradition is primal competition of anthropoid beasts. On the other hand, some think that carrying on the tradition was necessary. The question that must be answered is: Was this a barbaric tradition or was this ritual an honest attempt to better other villagers lives? Shortly after the publication of The Lottery in The New†¦show more content†¦Hutchinson cant help but finish washing her dishes before she meets her family at the square. After Tessie is the chosen one to die, it is her friend that initiates the stoning. Mrs. Delacroix, who picks up a stone so large that she has to use two hands, starts the murder by telling others to come on and hurry up. This shows no mercy for the victim, even when it may be a loved one. However the action of barbarism that tops all the others is Davy Hutchinson: The most pathetic figure of all is Davy Hutchinson who survives the drawing but who is forced, unknowingly, to take part in the ordeal. Someone gives him a few pebbles so that he, too, may share in the collective murder of his mother (Friedman 67). The above excerpt demonstrates that one function of the lottery is to change the relationship between community and victim (Magill 1673). At one instant all of the villagers are equal, but after the person is chosen to die, the rest of the village are predators hunting their prey. This change in feelings portrays a barbaric instinct towards the loser. Yet another inhumane action is how Nancy and Bill Jr. laugh after they realize they were not going to die. Maybe they laugh out of relief; nevertheless, they, in turn, display no feelings or thoughts of concern for someone else in their community who will be murdered. It is hard to visualize loving children, within a few minutes, go from dependence of mother to the murder of her. Friedman puts itShow MoreRelatedEssay Tradition or Cruelty in Shirley Jacksons The Lottery1147 Words   |  5 Pageshave many traditions. These traditions all have certain meanings behind them; however, many of those meanings tend to be lost or forgotten. The holiday of Thanksgiving was originally a celebration to commemorate the arrival of the pilgrims in the new world and their first interactions with the Native Americans. So then why is it still celebrated today? There is no actual purpose in today’s society to observe this custom.   It has just continued to be observed because of past tradi tions.   There isRead MoreThe Lottery vs the Destructors Essay examples1046 Words   |  5 PagesThesis In Shirley Jackson’s, â€Å"The Lottery†, and Graham Greene’s â€Å"The Destructors†, the author creates a story filled with symbolism, irony, grim reality, and a ritualized tradition that masks evil, which ultimately showcases how people blindly follow tradition. Outline I. Introduction II. Setting B. Time Period III. Plot A. What messages are seen inRead MoreResearch Paper on Shirley Jacksons â€Å"The Lottery†1141 Words   |  5 PagesShirley Jacksons â€Å"The Lottery† is a short story about the annual gathering of the villagers to conduct an ancient ritual. The ritual ends in the stoning of one of the residents of this small village. This murder functions under the guise of a sacrament that, at one time, served the purpose of ensuring a bountiful harvest. This original meaning, however, is lost over the years and generations of villagers. The loss of meaning has changed the nature and overall purpose of the lottery. This ritualRead MoreIgnornance of Tradition in The Lottery, by Shirley Jackson1014 Words   |  5 Pages Tradition, defined as the handing down of information, beliefs, and customs by word of mouth or by example from one generation to another without written instruction. (Tradition) Tradition is a core trait of humanity, from the time before recorded hi story to present, humanity has followed traditions or customs that have been passed down from generation to generation. More often than not communities all over the world blindly follow these practices with little regard to who startedRead MoreSummary On The Allegory Of Shirley Jacksons The Lottery871 Words   |  4 Pages Shirley Jackson’s story â€Å"The Lottery† serves as an allegory regarding humankinds inherent to be cruel and society’s ability to inure to violence. The author’s use of a third-person dramatic narrative combined with strong themes, symbols and irony clearly supports the lesson Jackson was trying to portray. Jackson’s short story shows how easy it is to be hostile when a group of villagers with a herd mentality blindly follow an outdated tradition and that evil knows no boundaries. JacksonRead MoreThe Theme Of Tradition In Shirley Jacksons The Lottery1638 Words   |  7 PagesDEATH BY TRADITION Henry James once said, â€Å"It takes an endless amount of history to make a little tradition.† In the short story, â€Å"The Lottery,† by Shirley Jackson deals with the insignificant nature of humanity when it comes to traditions. Today when one thinks about winning, one does not think about the community or close relatives; one thinks about how one is going to spend the money received. However, in Jackson’s short story, â€Å"The Lottery† represents a human sacrifice by means of stoning withRead MoreThe Lottery by Shirley Jackson1764 Words   |  7 Pagesfilled with excitement and eeriness, leaving the reader speechless. The Lottery , a short story written by famous writer Shirley Jackson, created an uproar on June 26, 1948, when it was published in the magazine The New Yorker (Ball). The gothic thriller, set in an unknown time and place, shares the tradition of a small town, a little larger than three hundred people, in which a drawing is held once a year. In this â€Å"Lottery,† each family’s husband draws a slip of pap er from a black box. The husbandRead MoreAnalysis Of Shirley Jackson s The Lottery, And Kurt Vonnegut Jr. s Harrison Bergeron1604 Words   |  7 Pagespersonal values and beliefs can be found in Shirley Jackson’s, â€Å"The Lottery†, and Kurt Vonnegut Jr.’s â€Å"Harrison Bergeron†. These short stories describe situations in which the citizens allow the superiors to have full control, without thinking twice about the laws and traditions that require their submission. Both of these short stories are similar in theme, because each tells about a community that chooses to participate in cruel and inhumane traditions, rather than allow individuals to form theirRead More Foreshadowing in Shirley Jacksons The Lottery Essays1152 Words   |  5 PagesForeshadowing in Shirley Jacksons The Lottery      Ã‚  Ã‚   The Lottery, a short story written by Shirley Jackson, is a tale about a disturbing social practice.   The setting takes place in a small village consisting of about three hundred denizens.   On June twenty-seventh of every year, the members of this traditional community hold a village-wide lottery in which everyone is expected to participate.   Throughout the story, the reader gets an odd feeling regarding the residents and their annual practiceRead MoreThe Horror of The Lottery, by Shirley Jackson1375 Words   |  6 Pagesvillagers took part in the traditional lottery drawing and one villager was picked for the prize – a stoning. In 1948, Shirley Jackson published this short story known as â€Å"The Lottery,† in The New York Times. The story’s plot shocked readers all over America as they learned of the horror happening in such a quaint town. Jackson purposely set this tragic event in this innocent setting to emphasize humanity’s crue lty. Using her appalling short story, The Lottery, Shirley Jackson alarms readers with the ironic

Myelodysplastic Syndromes (MDS) - 1483 Words

Not too long ago, a national, television journalist announced that they were diagnosed with something called MDS. It was the host of â€Å"Good Morning America†, Robin Roberts, who reported that she had recently been diagnosed with MDS or myelodysplastic syndrome. She also stated that she had acquired MDS as a result of her initial battle with breast cancer. Robin Roberts is not only a national TV personality, but she is also a local celebrity here on the Gulf Coast. I was captivated by this obviously emotional announcement and the heartfelt outpouring given by Robin on her television show in front of millions of people. Thus, my interest prompted further investigation of how myelodysplastic syndrome affects the bone marrow and blood cells. Journal research from scientific, scholarly sources was necessary to know and understand exactly what type of challenges Robin Roberts is about to face in the weeks ahead. The Investigation of MDS According to the MD Anderson Cancer Center (2009), Myelodysplastic Syndrome (MDS) is the name for a group of various disorders that affect the bone marrow. Bone marrow is where red blood cells, white blood cells and platelets are produced (MFMER, 2011). MDS primarily occurs in the elderly population in ages 65 and older, but MDS can affect younger patients as well. Bone marrow produces immature blood cells often referred to as stem cells, progenitor cells, or blasts (Aggarwal, S., Van de Loosdrecht, A., Alhan, C., Ossenkoppele, G. J.,Show MoreRelatedRationale : Myelodysplastic Syndrome ( Mds )1999 Words   |  8 PagesRationale: Myelodysplastic syndrome (MDS) is not something that is common throughout my family, but since most of our medical conditions were commonalities with the rest of the United States population, I took a particular interest in this unusual condition. My paternal grandfather – a farmer and a military veteran – was diagnosed with acute myeloid leukemia in 1996 at the age of 72, which was his cause of death in 1999. Several years prior to this he was diagnosed with what was once referred toRead MoreDiagnosis And Classification Of Myeloproliferative And Myelodysplastic Disorders1678 Words   |  7 PagesMyeloproliferative and myelodysplastic syndromes, two diverse groups of bone marrow disorders, are respectively characterized by an overproliferation or ineffective production of various blood cells. The clinical laboratory plays a prominent role in the diagnosis and classification of myeloproliferative and myelodysplastic disorders, each of which presents a unique set of morphologic, pathophysiologic, and genetic traits. The contemporary diagnosis and categorization of these syndromes emphasizes a combinationRead MoreMyelodysplastic Syndromes Are A Group Of Disorders Caused By Poorly Formed Or Dysfunctional Blood Cells1508 Words   |  7 Pagesâ€Å"Myelodysplastic syndromes are a group of disorders c aused by poorly formed or dysfunctional blood cells.† (Mayo Clinic 2015) Myelodysplastic syndromes, also known as bone marrow failure syndromes, occur when the bone marrow is not doing its job of providing enough functional, healthy blood cells. These syndromes generally occur with geriatric patients, and are responsible for a host of issues such as abnormal bleeding, infection, bruising, and anemia. People with these syndromes generally presentRead More5-Azacytidine is a Potential Chemotherapeutic Agents for Cancer1430 Words   |  6 PagesIt is sold under the brand name Vidaza. The drug was first synthesized in Czechoslovakia as potential chemotherapeutic agents for cancer. It is an inhibitor of DNA methylation and was approved by the US FDA for the treatment of Myelodysplastic syndromes (MDS) in May 2004. MDS are diseases caused by abnormalities in the blood-forming cells of the bone marrow, which result in low production of healthy blood cells. Cytotoxic effect is exerted on rapidly dividing cancerous cells by the drug. This restoresRead MoreAzacitidine are DNA Methyltransferase Inhibitors641 Words   |  3 Pagesan analog for cytidine gets integrated into the DNA sequence of the DNMT gene, the gene turns dysfunctional, inhibiting the DNA methyltransferase enzymes which normally methylate DNA. Azacitidine is used primarily for the treatment of myelodysplastic syndromes or MDS- a blood disorder which affects the bone marrow leading to a low or ineffective production of blood cells. The cancerous overgrowth of a number of immature cells or blasts and the abnormally developed or dysplastic cells increase, therebyRead MoreTaking a Look at Myelodysplasia Syndrome1160 Words   |  5 PagesMyelodysplasia syndrome (MDS), is a type of disease that is associated with abnormal cells in the blood and bone marrow. Patients with the disease commonly have immature stem cells which result in unhealthy progenies such as platelets, red and white blood cells. There are different types of MDS, which are analyzed by certain changes in the blood or bone marrow. MDS can be more commonly found in Men in their 60’s seeing how the chances of myelodysplasia syndrome increases with age. Genetics alsoRead MoreEssay on Hematology1016 Words   |  5 PagesParoxysmal Nocturnal Hemoglobinuria (PNH) also known as Marchiafava-Micheli Syndrome (named after Dr. Ettore Marchiafava and Dr. Ferdinando Micheli) For every million people only a few of them will get paroxysmal nocturnal hemoglobinuria which makes this a rare blood disease. Paroxysmal nocturnal hemoglobinuria affects both sexes and all ages equally. Patients with PNH suffer from a faulty or missing PGI-A gene which can be found within the erythrocytes, leukocytes, and thrombocytes. ParoxysmalRead MoreProstate Cancer : A Common Type Of Cancer914 Words   |  4 Pagesthe other testicle. In fact, men who treated their cancer with surgery alone, have a greater chance of getting a second testicular cancer than those who were treated with chemotherapy. However, there is an increased risk of leukemia and myelodysplastic syndrome (MDS) after receiving treatment with chemotherapy. Also, testicular cancer survivors are twice as likely to develop a new cancer outside of the testicles than those who never had it. Some examples of such cancers are: rectal, pancreas, bladderRead MoreAll And Its Effects For Lymphoblasts1355 Words   |   6 Pagesto treat other cancers, and -cancer-causing substances in tobacco smoke.Some people with pre-existing blood disorders like certain myelodysplastic syndromes (MDS) and myeloproliferative neoplasms (MPN), or certain genetic disorders like Downs Syndrome, Bloom Syndrome and Fanconis anaemia may have a higher than average risk of developing AML. What are the symptoms? Read MoreChemical Surveillance Program For Leukemia1184 Words   |  5 PagesGrandbastien, B., Preudhomme, C., Fontaine, B., Brillet, J. M., . . . Fenaux, P. (2001). Occupational and environmental risk factors of the myelodysplastic syndromes in the North of France. British Journal of Haematology Br J Haematol, 112(4), 927-935. doi:10.1046/j.1365-2141.2001.02645.x Pagano, L., Caira, M., Fianchi, L.., Leone, G., (2006). Environmental risk factors for MDS/AML. Haematologica reports. 2(15), 42-45. Checkoway, H., Eisen, E. A. (1998). Developments in Occupational Cohort Studies

Aluminium - Brass and Stainless Steel

Question: Discuss about the Report for Aluminium, Brass and Stainless Steel. Answer: Introduction In metal cutting industry, machining of products is major manufacturing processes. Industries are trying for improvement of the machine tool parameters so as to get better products at less cost. To achieve this in past several researches has been done to identify optimum condition for metal cutting. To get the optimum condition of machining quality some CNC machine tools are provided with adaptive controls system. It is system that modifies systems parameter online according to feedback. [Prabhu R., 2012] For enhancing the efficiency of machining processes getting optimize cutting forces is very important tasks. Machining parameter that affect power consumptions are depth of cut, cutting speed. Hence by focusing on this parameter by cutting forces measurement methods is expected to give significant impact on power reduction. These papers contain a brief analysis on the various effects of the cutting parameters on cutting force in the turning process. Improvement of cutting processes, optimization of the cutting parameter, and analysis of cutting technology are achieved by measuring cutting forces.[ Varalakshmi M.V.,2015] Experiment Procedure The job is fixed in chuck and flat the end face of work piece, operation facing is performed. For providing tapered hole job is drilled at centre so as to it be supported be the reference points. Dynamometer sensing unit is placed on CNC lathe by clamped it rigidly. Mount work-piece in chuck. Selected speeds in CNC controller to a suitable combination and start the machine. Wait for stabilizing, output of bridges and measured the maximum output for feed, thrust force. After that write readings.[ Prabhu R.,2012] Mechanics of metal cutting Metal cutting operation is performed by relative motion b/w cutting tool hard edge and the work piece. Cutting of metals can be done by multipoint cutting tool or single point cutting tool. Mainly by two kinds cutting of metal is performed that is oblique and orthogonal cutting. They are known as oblique and orthogonal. In orthogonal tool cutting edges angle is 90o to the direction vector of tools travel and if it is at an angle then known as oblique. For investigating cutting tool performance while cutting of metal, the cutting force measurement is very essential.[ Tulasiramarao B., 2014] Cutting forces Single point cutting tool have only single cutting force while machining but this force is further resolved into the two components so as for ease of the exploitation and analysis. Single force of cutting in turning is then resolved into two x-y components along the two orthogonal direction: X and Y[ Prabhu R., 2012]. These force components are-: Fx-: It is called thrust force act in radials direction. Fy-: That force is called cutting force that acts in feed direction (that is axial direction) Dynamometer Dynamometer measures cutting force in two perpendicular components while turning and that measured values are stored in computer with data acquisitions system. Dynamometer works on principle of the piezoelectric output in which charges proportional has to be measured. That charge is then passed through highly insulated cable to charge the amplifier to get conversions into the proportional voltage. A connection between in-line charge amplifier and dynamometer is of the paramount importance to measurement stability. Dynamometer output is amplified by charge amplifier and then data is collected in computer by mean of data acquisitions system.[ Varalakshmi M.V,2015] Work Piece Material used Aluminum Brass Copper Results Fx- Thrust cutting force in Newton Fy- Cutting force in Newton T- Time in seconds Conclusion From above research it is concluded that Stainless steel need highest amount of cutting force as compare to Brass and aluminum. Experimental analysis was performed on these materials at CNC turning machine tool. So this research paper describes reliable method to measure cutting forces during turning process with help of dynamometer. References Prabhu R.,2012 Effect of cutting Parameters on cutting force and surface roughness of Aluminum components using face milling process- a Taguchi Approach,ISOR Journal of Mechanical and Civil Engineering, ISSN: 2278-1684, Col. 3, Issue 4., Visited 10 Sep 2016, Available: https://iosrjournals.org/iosr-jmce/papers/vol3-issue4/B0340713.pdf?id=2561 Tulasiramarao B., 2014, Measuring cutting forces while cutting of different metals with different speeds, IJAIEM, ISSN 2319-4847, Volume 3, Issue 9, Visited 10 Sep 2016, Available: https://www.ijaiem.org/Volume3Issue9/IJAIEM-2014-09-28-66.pdf Varalakshmi M.V., 2015, Measurement of cutting forces while turning different materials by using lathe tool dynamometer with different cutting tool nomenclature, IJIRSET, ISSN: 2319-8753, Vol.4, Issue 7, Visited 10 Sep 2016, Available: https://www.ijirset.com/upload/2015/july/139_43_MEASUREMENT_NEW.pdf

Internet Key Exchange

Kang Balitanas (2009) define IKE as a spontaneous key management protocol created by the combination of several other different key management protocols, and serves as the default key generator for IPsec, a shortened form for Internet Protocol Security. It creates, encrypts and authenticates all secret keys generated between two computers on a network.Advertising We will write a custom assessment sample on Internet Key Exchange specifically for you for only $16.05 $11/page Learn More It further helps to determine and configure security associations (SAs) necessary for a secure communication, and specifies the protocol format, cryptographic and hashing algorithms, used between the two computers. Kyburz (2010) notes that â€Å"the two peers on either side of the SA usually store the cryptographic keys, encryption algorithms, authentication schemes, and all integrity protection mechanisms supported by that connection in the SA†. All this information is exchanged between the two computers using digital signatures and message authentication codes (MACs). Easttom (2006) defines a digital signature as any accessional data included in a message, containing an e-mail addendum, used to corroborate the authenticity of the sender of the message. They are anchored on private and public encryption keys and use digital certificates (DCs), provided by Certificate Authorities (CAs). CAs use information supplied to them to generate the digital certificate, with an encrypted private key for the requester. Kyburz (2010) asserts that, the receiver of a signature will apply the signer’s public key in the decryption and verification of the signature. Where the public key is unknown, it can be requested through a certificate request (CR). According to Mason (2002), there are two distinct phases in an IKE protocol. Phase one includes the fabrication of an authenticated and secure channel, amid the two computers, that is called the IKE Securi ty Association, by the Diffie-Hellman key correspondence being performed. In the second phase, IKE negotiates the IPsec security associations and yields the preferred keying material. Kyburz (2010) notes that, â€Å"the generated key material is transferred to the IPsec, which tracks and supervises the security of all the subsequent communication channels†. The mechanisms that IKE uses to encrypt and authenticate all forms of communications between the initiator and responder are either symmetric or asymmetric. In an asymmetric key encryption system, one key referred to as the public key, is availed to everybody, and is used to encrypt a message, but only the recipient has got the private key to decrypt the message/data.Advertising Looking for assessment on it? Let's see if we can help you! Get your first paper with 15% OFF Learn More On the other hand, a symmetric data encryption, also referred to as conventional data encryption, uses a common key to encrypt an d decrypt data. The types of conventional encryption methods fall under the Extensible Authentication Protocols (EAPs) and include; Data Encryption Standard (DES), Advanced Encryption Standard (AES), International Data Encryption Standard (IDEA) among others. These are discussed below. DES uses short keys and relies on sophisticated procedures to encrypt a large amount of data quickly and efficiently, resulting in scrambled data which is difficult to decrypt without the decryption code. Initially, the data is divided into 64-bit blocks which undergo permutation. The permuted data is then manipulated by sixteen separate steps of encryption involving bit-shifting, substitutions and logical operations using a 56-bit key. It is then scrambled using a swapping algorithm, after which the scrambled data is transposed again. It is a fast method that uses sophisticated algorithms to encrypt data. An improved version of the method- referred to as triple DES or simply DES-3 is available. It re peats the encryption procedure three times, coming up with a more complex encryption of the data, thus increasing data security. AES uses the rijndael algorithm to encrypt the data. It specifies 128-bit, 192-bit and 256-bit keys for its encryptions. It utilizes a block cipher and is considered a very secure encryption method. IDEA works with 64-bit blocks of data, two at a time and produces 128-bit keys. It uses sub-keys generated from the main key to perform modular arithmetic and XOR operations to encrypt the data. Kyburz (2010) identifies some weaknesses inherent in IKE. They include; Penultimate authentication flaws- where an active adversary intercepts data exchange between two computers trying to set up SAs. This results in attacks against session key secrecy, leading to impersonation in a communique. There is also random reveal weakness, whereby an active adversary is able to derive keys from both peers. It is also vulnerable to Key Compromise Impersonation attacks, in instan ces where an attacker is able to access long-term secret keys of a particular computer. Kyburz (2010) also includes identity protection and resource exhaustion as other limitations of IKE. Mason (2002) highlights the following advantages of Internet Key Exchange that make it a secure method for key exchange; IKE protocol allows for perfect forward secrecy, which ensures superior endurance to cryptographic attacks.Advertising We will write a custom assessment sample on Internet Key Exchange specifically for you for only $16.05 $11/page Learn More Kyburz (2010) on the other hand notes that IKE is able to protect the two computers against man-in-the-middle attack, inherent in the standard Diffie-Hellman protocol, since even the Diffie-Hellman key exchanges are encapsulated in IKE protocol. In addition, IKE also integrates traffic selectors which permit a superior IPsec policy negotiation based on IP address and port. References Easttom, C. (2006). Network defense and countermeasures: Principles and practices. Upper Saddle River, N.J: Pearson. Balitanas, M., Kang, B. (2009). Vulnerabilities of VPN using IPSec and Defensive Measures. International Journal of Advanced Science and Technology,volume 8, 306-791. Web. Kyburz, A. (2010). An automated formal analysis of the security of the Internet Key Exchange (IKE)-Protocol in the presence of compromising adversaries. (Master’s Thesis). Swiss Federal Institute of Technology, Zurich. Retrieved from https://www.research-collection.ethz.ch/bitstream/handle/20.500.11850/152399/eth-2226-01.pdf Mason, A. (2002). VPNS and VPN Technologies. Retrieved from Ciscopress.com: http://www.ciscopress.com/ This assessment on Internet Key Exchange was written and submitted by user Cloud 9 to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.