Parallel Computing Of Cryptography A Literature Review

PARALLEL COMPUTING IN CRYPTOGRAPHY A Literature Review Presented to Sharmin Khan Department of Computer Science San Jose State University In Partial Fulfillment of the Requirements for the Class CS 200W By Rachel Gonsalves May 2016 Abstract In today’s world a lot of data is being exchanged via the internet. Sensitive data such as official documents, bank details, credit card information, as well as personal information is being sent online. To maintain the confidentiality, integrity and availability of this data, it needs to be encrypted. Cryptology deals with cryptography and cryptanalysis, i.e., encryption and decryption of information. To keep the data safe from intruders, various cryptographic algorithms are implemented. Parallel processing enhances the speed of these systems and makes it more efficient. Parallel computation can be performed using multicore processors by parallelizing the execution of algorithms in multiple cores. The main area of focus will be the parallelization of Advanced Encryption Standard (AES) algorithm, which is widely in use today. The paper reviews the implementation of AES algorithm on multiple cores and the speedups observed in the process. TABLE OF CONTENTS 1. Introduction 4 2. Cryptography 5 3. Advanced Encryption Standard 5 4. Message Passing Interface 6 5. Parallel Processing System 8 6. Results and Performance 9 6.1. Encryption 9 6.2. Decryption 11 7. Conclusion 13 References 13Show MoreRelatedAnnotated Bibliography On Information Security2492 Words   |  10 PagesAbstract Information security is a major concept in today’s industrial and computer era, so security must be higher to protect the confidential data. Information security plays major role in computer and network security with the use of different cryptography algorithms that includes the encryption and decryption of data with the uses of the algorithm and the key. 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Comparison Contrast of Death of a Salesman and Glengarry Ross

Sasha Schmidt Midterm Essay Question 4 Jeannine Russell 10/28/12 The True Criminal Being a salesman has always carried a negative stigma since the early 1900s. Being seen as pushy, high pressure, deceitful people; the dreaded activity of purchasing some car or new appliance has haunted everyone at some point or another. Many words have come to describe salesman such as â€Å"sharks†, â€Å"cons†, â€Å"thieves† etc., and these words have stuck with the profession throughout the century. Two very realistic depictions of such phonies can be seen in Death of A Salesman by Arthur Miller and Glengarry Glen Ross by David Mamet. They depict the styles of two salesmen who have very similar selling techniques, but at the same time can be contrastingly†¦show more content†¦Much to his chagrin is the new reality he is facing, where â€Å"it’s all cut and dried, and there’s no chance for bringing friendship to bear†(Miller 1089). In contrast, Levene takes on the role of â€Å"cut and dried† sales techniques, often usin g his other associates as pretend clients in order to just make the sell, whether or not he’s tricking extorting money out of his clients. Right from the beginning, he is trying to con â€Å"leads† out of Williamson, his supervisor. â€Å"†¦ I need the leads†¦Ã¢â‚¬ , he boldly tells Williamson who reluctantly begins to make him a deal (Mamet 1418). Right from the get go, Leven is already using the manipulation techniques he uses day in and day out on his co-workers even. Loman pushes his honest, integrity, and personality traits as the key to selling success, though we see an obvious decline in his selling abilities compared to the others. That being said, both characters are still very flawed with illusions of owning their own companies and waiting for the right client to come along. They both still have some nasty personality traits and are still putting on a faà §ade to trick people; however, Willy Loman is tricking his family while Shelly Levene is tr icking his consumers. Hard selling is a selling technique in which the salesman manipulates the psychological state of the consumer in order to achieve a sale, whether or not the sale is good (Baron amp; Branscombe). There is little concern for the consumer at all, in fact, often

Ratio Analysis Memo Free Essays

Ratio Analysis Memo July 9, 2012 Memo To: From: Date: July 9, 2012 RE: Kudler Fine Foods ratio analysis One of the things that we will be going over is some of the ratios for Kudler Fine Foods through Liquidity, Profitability, and solvency ratios. We will look into some of the finding that were found through these ratios and discuss them. One of the things that we found was where Kudler Fine Foods’ position is with these ratios. We will write a custom essay sample on Ratio Analysis Memo or any similar topic only for you Order Now The first area that we look at is profitability. Profitability Ratios: When looking through the profits of the company through the balance sheets we will look at a couple of areas. The first area that we will look into is the asset turnover of the company. The beginning assets started in at $1,971,000. When you take that by the total assets of $2,675,250 you get the turnover margin which is 4. 04. Net Sales___ = Asset Turnover $10,796,200 = 4. 04 Total Assets $2,675,250 Next area we see is the profit margin. You see through the balance sheet that Kudler Fine foods over the board did pretty good when you look at it from a profit stand point. The way we calculated the profit margin was Net Income over sales and this was the information that we got: Net Income = Profit Margin$668,950__ = . 06 Net Sales $10,796,200 Looking into the return on assets it was interesting to see some of the findings when we calculated. Net Income____________ = Return on Assets $668,950 = . 28 (Beginning + Ending total assets)/2 ($1,971,000 +$2,675,250)/2 Return on Common stockholders’ equity: Net Income = Return on Common stockholders’ equity. $668,950 =. 0 Shareholders’ equity $746,290 Solvency Ratios: Solvency ratios measure the company’s ability to meet long-term obligations. This is a ratio that measures the company’s size after tax income. One of the things that you look at with solvency ratios is debt to total assets. Total liabilities = Debt to total assets $746,290 = . 27 Total Assets $2,675,250 The other area that is measured in Solvency ratios is Time interest earned: Earnings before interest Taxes = Time Interest earned $10,796,200 = $1,376. 8 Interest Expense $7,845 Liquidity Ratios: A company is labeled by how easily it can meet its short term obligations. Something that I think is happening pretty well at Kudler. When you look at the different ratios of the Liquidity you see some good numbers. Let us dive into these ratios so you can see what I am talking about. Current Ratio: Current Assets = Current Ratio$1,971,000 = $16. 94 Current Liabilities $116,290 Receivables Turnover: Sales Revenue = Receivable Turnover $10,804,000 = $12. 60 Average Acct Receivable $86,000 Inventory Turnover: Cost of goods sold = Inventory Turnover$8,974,831 = $10 Average Inventory($467,890 + $429,090)/2 Acid Test: Liquid Assets = Acid Test$1,971,000 = $16. 94 Current Liabilities$116,290 When you look at the overall ratios of Kudler Fine Foods you see that things are going in the right direction. Looking at the profitability margins you see increases in a short amount. Anything with an increase is good news. I would say that Kudler Fine Foods is in good condition and is steadily improving. How to cite Ratio Analysis Memo, Essay examples

DaVinci meets Essay Example For Students

DaVinci meets Essay Walking around the Science in Art exhibit, I was struck by one particular piece of art. Lynette Millers Madonna of the Double Helix caught my eye, not only for its remarkable use of materials, but for its stark resemblance to a far more well known artist, Leonardo DaVinci. The piece that I shall compare and contrast it to is DaVincis Vitruvian Man. Millers Madonna is of a far more modern era, first created in 2007. This modern American artist combined ink on Masonite, with portray a Madonna with her child and then superimposed outlines of DNA and mathematical drawings on top of it. The result is almost unconceivable. The second piece, DaVincis Vetruvian Man, is a drawing of the seemingly perfect man, done with a charcoal pencil on paper. This piece dates back to 1487, and also contains two superimposed images. Both of these pieces represent a blend of art and science as well as exploring the relationship and new meanings created by simultaneously viewing disparte imagery. They represent a time where art is not mixed with the undefined science and math. It really relates to a question of the beauty of humanity. The Madonna of the Double Helix is a portrayal of the idea that there is more to truth and reality than what can be detected with our senses. The Madonna is painted in a very Renaissance type manner, with her round idealistic features. However , the work as a whole is also very realistic as it poses the truths of science in direct relationship to the subjects of the painting. The nude child that the Madonna holds is superimposed in a different pose with measurements and mathematical equatiosn surrounding it. The style appears to be a blend of Renaissance and modern science or math. There is also symbolism in the art work, in the form of DNA strands. These strands are symbolic of the genetic makeup of human existence. The colors of the painting are very bright, unlike that of the Vitruvian man, which was done in pencil and thus is only one color. The colors do seem to detract from the meanings of the painting but also provide a good background to view the superimposed images.