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⨘ } Algorithms } 007 } Analysis of randomized algorithms }
 
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This lecture discusses about the analysis of randomized algorithms, a randomized quick-sort example is discussed. Do not forget to subscribe { Leprofesseur } YouTube channel. This helps to keep you up-to-date with latest videos as soon as they are available. Sincerely, H.
Views: 4421 LEPROFESSEUR
6. Randomization: Matrix Multiply, Quicksort
 
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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Srinivas Devadas In this lecture, Professor Devadas introduces randomized algorithms, looking at solving sorting problems with this new tool. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 20420 MIT OpenCourseWare
2.4.1 RSA Public Key Encryption: Video
 
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MIT 6.042J Mathematics for Computer Science, Spring 2015 View the complete course: http://ocw.mit.edu/6-042JS15 Instructor: Albert R. Meyer License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 17916 MIT OpenCourseWare
What is Brute Force Attack? How it's done? | [Hindi]
 
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Video Title: What is Brute Force Attack? How it's done? | [Hindi] In this video i will tell you what is brute force attack and how it's done. We will see in detail how it works. we will also discuss what is dictionary attack and how its different from brute force attack. Everything explained in Hindi. Extra info: In cryptography, a brute-force attack consists of an attacker trying many passwords or passphrases with the hope of eventually guessing correctly. The attacker systematically checks all possible passwords and passphrases until the correct one is found. Alternatively, the attacker can attempt to guess the key which is typically created from the password using a key derivation function. This is known as an exhaustive key search. A brute-force attack is a cryptanalytic attack that can, in theory, be used to attempt to decrypt any encrypted data (except for data encrypted in an information-theoretically secure manner). Such an attack might be used when it is not possible to take advantage of other weaknesses in an encryption system (if any exist) that would make the task easier. When password guessing, this method is very fast when used to check all short passwords, but for longer passwords other methods such as the dictionary attack are used because a brute-force search takes too long. Longer passwords, passphrases and keys have more possible values, making them exponentially more difficult to crack than shorter ones. Brute-force attacks can be made less effective by obfuscating the data to be encoded making it more difficult for an attacker to recognize when the code has been cracked or by making the attacker do more work to test each guess. One of the measures of the strength of an encryption system is how long it would theoretically take an attacker to mount a successful brute-force attack against it. Brute-force attacks are an application of brute-force search, the general problem-solving technique of enumerating all candidates and checking each one. ----------------------------------------- Like our Facebook page: https://www.facebook.com/DesiScientistReal/ Follow us on Twitter: https://twitter.com/DS_Asli
Views: 10683 Desi Scientist
⨘ } Algorithms } 002 } Data structures }
 
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This video lecture is about basic concepts for data structures, abstract data type, abstraction and sets up the base to learn and implement more complex data structure methods. If you like to have private tuition/lessons, you are very welcome to contact at [email protected] Do not forget to subscribe { Leprofesseur } YouTube channel. Subscription of the channel will help to update you with latest videos as they are available. Sincerely, H.
Views: 332 LEPROFESSEUR
Chen mou Cheng -  A Polynomial-Time Algorithm for Solving a Class of...
 
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A Polynomial-Time Algorithm for Solving a Class of Underdetermined Multivariate Quadratic Equations over Fields of Odd Characteristics Chen mou Cheng of Kyushu University presented a talk titled: A polynomial-time for solving a class of underdetermined multivariate quadratic equations over fields of odd characteristics at the 2014 PQCrypto conference in October, 2014. Abstract: Following up a series of works by Kipinis-Patarin-Goubin, Courtois-Goubin-Meier-Tacier, and Thomae-Wolf, in PQCrypto 2013 Miura, Hashimoto, and Takagi proposed an efficient algorithm for solving a class of underdetermined multivariate quadratic equations. Their algorithm does not use any generic Gröbner-basis solving techniques and asymptotically requires the least degree of underdeterminedness among all similar algorithms in the current literature. Building on top of their work, in this paper we focus on solving polynomially underdetermined multivariate quadratic equations over fields of odd characteristics. We show that we can further improve the applicable range of the Miura-Hashimoto-Takagi algorithm essentially for free. Furthermore, we show how to allow a certain degree of trade-off between applicable range and running time. Last but not least, we show that the running time of the improved algorithm is actually polynomial in the number of equations and variables. To the best of our knowledge, this is the first result showing that this class of polynomially underdetermined multivariate quadratic equations over fields of odd characteristics can be solved in polynomial time. PQCrypto 2014 Book: http://www.springer.com/computer/security+and+cryptology/book/978-3-319-11658-7 Workshop: https://pqcrypto2014.uwaterloo.ca/ Find out more about IQC! Website - https://uwaterloo.ca/institute-for-qu... Facebook - https://www.facebook.com/QuantumIQC Twitter - https://twitter.com/QuantumIQC
The Randomness Problem: How Lava Lamps Protect the Internet
 
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Go to https://Brilliant.org/SciShow to get 20% off of an annual Premium subscription! Randomness is important for all kinds of things, from science to security, but to generate true randomness, engineers have turned to some pretty odd tricks! Hosted by: Stefan Chin Head to https://scishowfinds.com/ for hand selected artifacts of the universe! ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Lazarus G, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://www.wired.com/story/cloudflare-lava-lamps-protect-from-hackers/ https://sploid.gizmodo.com/one-of-the-secrets-guarding-the-secure-internet-is-a-wa-1820188866 https://www.fastcompany.com/90137157/the-hardest-working-office-design-in-america-encrypts-your-data-with-lava-lamps https://www.nytimes.com/2001/06/12/science/connoisseurs-of-chaos-offer-a-valuable-product-randomness.html https://blog.cloudflare.com/why-randomness-matters/ https://www.design-reuse.com/articles/27050/true-randomness-in-cryptography.html https://www.random.org/randomness/ https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-856j-randomized-algorithms-fall-2002/lecture-notes/ https://link.springer.com/chapter/10.1007/978-3-319-26300-7_3 https://www.maa.org/sites/default/files/pdf/upload_library/22/Ford/Volchan46-63.pdf https://nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-22r1a.pdf http://www.iro.umontreal.ca/~simardr/testu01/guideshorttestu01.pdf https://www.rand.org/pubs/monograph_reports/MR1418/index2.html https://www.rand.org/content/dam/rand/pubs/papers/2008/P113.pdf https://docs.microsoft.com/en-us/windows/desktop/secauthn/tls-handshake-protocol https://tools.ietf.org/html/rfc2246#page-47 https://ops.fhwa.dot.gov/trafficanalysistools/tat_vol3/vol3_guidelines.pdf https://ocw.mit.edu/courses/aeronautics-and-astronautics/16-36-communication-systems-engineering-spring-2009/lecture-notes/MIT16_36s09_lec21_22.pdf https://telescoper.wordpress.com/2009/04/04/points-and-poisson-davril/ https://auto.howstuffworks.com/remote-entry2.htm https://web.archive.org/web/20070315010555/https://cigital.com/papers/download/developer_gambling.php Images: https://commons.wikimedia.org/wiki/File:Middle-square_method.svg https://www.youtube.com/watch?v=zdW6nTNWbkc https://commons.wikimedia.org/wiki/File:Sun-crypto-accelerator-1000.jpg
Views: 383150 SciShow
Is Anything Truly Random?
 
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In 2012, scientists developed a system to predict what number a rolled die would land on. Is anything truly random or is it all predictable? Can Game Theory Help A Presidential Candidate Win? - http://bit.ly/2bMqILU Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read More: On Fair And Randomness http://www.sciencedirect.com/science/article/pii/S0890540109001369 "We investigate the relation between the behavior of non-deterministic systems under fairness constraints, and the behavior of probabilistic systems. To this end, first a framework based on computable stopping strategies is developed that provides a common foundation for describing both fair and probabilistic behavior. On the basis of stopping strategies it is then shown that fair behavior corresponds in a precise sense to random behavior in the sense of Martin-Löf's definition of randomness." Predicting A Die Throw http://phys.org/news/2012-09-die.html "Vegas, Monte Carlo, and Atlantic City draw people from around the world who are willing to throw the dice and take their chances. Researchers from the Technical University of Lodz, Poland, have spotted something predictable in the seemingly random throw of the dice." HTG Explains: How Computers Generate Random Numbers http://www.howtogeek.com/183051/htg-explains-how-computers-generate-random-numbers/ "Computers generate random number for everything from cryptography to video games and gambling. There are two categories of random numbers - "true" random numbers and pseudorandom numbers - and the difference is important for the security of encryption systems." ____________________ DNews is dedicated to satisfying your curiosity and to bringing you mind-bending stories & perspectives you won't find anywhere else! New videos daily. Watch More DNews on Seeker http://www.seeker.com/show/dnews/ Subscribe now! http://www.youtube.com/subscription_center?add_user=dnewschannel DNews on Twitter http://twitter.com/dnews Trace Dominguez on Twitter https://twitter.com/tracedominguez DNews on Facebook https://facebook.com/DiscoveryNews DNews on Google+ http://gplus.to/dnews Discovery News http://discoverynews.com Sign Up For The Seeker Newsletter Here: http://bit.ly/1UO1PxI Special thanks to Jules Suzdaltsev for hosting DNews! Check Jules out on Twitter: https://twitter.com/jules_su
Views: 186181 Seeker
Fermat's primality test
 
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Check my previous video on simpler primality testing algorithms: https://www.youtube.com/watch?v=LULHTKznczA Check my previous video on how powmod can be built in polynomial time: https://www.youtube.com/watch?v=qed48E92qXc Fermat's primality test: https://en.wikipedia.org/wiki/Fermat_primality_test Carmichael numbers: https://en.wikipedia.org/wiki/Carmichael_number Soup's number theory book: http://www.shoup.net/ntb/ntb-v2.pdf This is an implementation of Fermat's primality test in Python. The algorithm is polynomial in the size of the input and it works in O(k polylog(p)) where k is the test accuracy parameter and p is the candidate being tested. Because Fermat's algorithm uses randomness, it is a probabilistic algorithm. Fermat's test is a flawed algorithm because Carmichael numbers are composite numbers that the test thinks are prime. Polynomial-time primality testing has many applications in cryptography such as key generation. If you liked this video, please thumbs up and subscribe. This is one of my first videos. Please leave feedback about what you think I can improve and what other topics you would like to see. I've just created a Patreon where you can buy me a cup of coffee. Thanks so much for supporting me! https://www.patreon.com/dionyziz
Views: 1033 dionyziz
Jintai Ding - ZHFE, a New Multivariate Public Key Encryption Scheme
 
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Jintai Ding of the University of Cincinnati and the Chinese Academy of Sciences presented a talk titled: ZHFE, a new multivariate public key encryption scheme at the 2014 PQCrypto conference in October, 2014. Abstract: In this paper we propose a new multivariate public key encryption scheme named ZHFE. The public key is constructed using as core map two high rank HFE polynomials. The inversion of the public key is performed using a low degree polynomial of Hamming weight three. This low degree polynomial is obtained from the two high rank HFE polynomials, by means of a special reduction method that uses HFE polynomials. We show that ZHFE is relatively efficient and the it is secure against the main attacks that have threatened the security of HFE. We also propose parameters for a practical implementation of ZHFE. PQCrypto 2014 Book: http://www.springer.com/computer/security+and+cryptology/book/978-3-319-11658-7 Workshop: https://pqcrypto2014.uwaterloo.ca/ Find out more about IQC! Website - https://uwaterloo.ca/institute-for-qu... Facebook - https://www.facebook.com/QuantumIQC Twitter - https://twitter.com/QuantumIQC
Issues with Schoolbook RSA
 
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This video is part of the Udacity course "Intro to Information Security". Watch the full course at https://www.udacity.com/course/ud459
Views: 150 Udacity
Differential Cryptanalysis
 
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Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 14227 nptelhrd
Quantum Computing for Computer Scientists
 
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This talk discards hand-wavy pop-science metaphors and answers a simple question: from a computer science perspective, how can a quantum computer outperform a classical computer? Attendees will learn the following: - Representing computation with basic linear algebra (matrices and vectors) - The computational workings of qbits, superposition, and quantum logic gates - Solving the Deutsch oracle problem: the simplest problem where a quantum computer outperforms classical methods - Bonus topics: quantum entanglement and teleportation The talk concludes with a live demonstration of quantum entanglement on a real-world quantum computer, and a demo of the Deutsch oracle problem implemented in Q# with the Microsoft Quantum Development Kit. This talk assumes no prerequisite knowledge, although comfort with basic linear algebra (matrices, vectors, matrix multiplication) will ease understanding. See more at https://www.microsoft.com/en-us/research/video/quantum-computing-computer-scientists/
Views: 152634 Microsoft Research
Miller-Rabin primality test
 
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The Miller-Rabin primality test: https://en.wikipedia.org/wiki/Miller%E2%80%93Rabin_primality_test A python implementation of the probabilistic Miller-Rabin primality test. This test runs in polynomial time O(k polylog(p)) and has a negligible probability of failure 4^(-k), making it suitable for cryptographic applications. This video builds up from Fermat's primality test. Watch my previous video where I explain it: https://www.youtube.com/watch?v=qDakpCEW5-0 Euclid's lemma: https://en.wikipedia.org/wiki/Euclid%27s_lemma Fermat's little theorem: https://en.wikipedia.org/wiki/Fermat%27s_little_theorem Soup's number theory book: http://www.shoup.net/ntb/ntb-v2.pdf If you enjoyed this video, please 👍 and +Subscribe. This is one of my first videos. Please leave feedback about what you think I can improve and what other topics you would like to see. I've just created a Patreon where you can buy me a cup of coffee. Thanks so much for supporting me! https://www.patreon.com/dionyziz
Views: 3425 dionyziz
Predicting Stock Price Mathematically
 
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There are two prices that are critical for any investor to know: the current price of the investment he or she owns, or plans to own, and its future selling price. Despite this, investors are constantly reviewing past pricing history and using it to influence their future investment decisions. Some investors won't buy a stock or index that has risen too sharply, because they assume that it's due for a correction, while other investors avoid a falling stock, because they fear that it will continue to deteriorate. http://www.garguniversity.com Check out Ebook "Mind Math" from Dr. Garg https://www.amazon.com/MIND-MATH-Learn-Math-Fun-ebook/dp/B017QEIF18
Views: 149300 Garg University
1: BM25 - Introduction
 
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Views: 544 indsci
Side-Channel Attack
 
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caleb’s code https://github.com/golang-book/bootcamp-examples todd’s code https://github.com/GoesToEleven/GolangTraining/ course outline https://goo.gl/EIbk7a Learn The Language - Golang Training https://goo.gl/DB1GvG Learn The Language - Great Golang Books https://www.golang-book.com/books/intro (Caleb Doxsey) http://amzn.to/1PmlB1w (Bill Kennedy) http://amzn.to/21nO1Mc (Donovan & Kernighan) http://amzn.to/1PmlKSB (Balbaert) Learn The Language - Quick Code Samples https://gobyexample.com/ Playlist of all videos in training https://goo.gl/WWCh9D Index of Videos https://goo.gl/SDgaEr ASK QUESTIONS & GET HELP https://forum.golangbridge.org/c/getting-help STAY CONNECTED G+ https://goo.gl/kWyztP https://twitter.com/Todd_McLeod https://www.youtube.com/user/toddmcleod NOTES ON THIS VIDEO: side-channel attacks; https://en.wikipedia.org/wiki/Side-channel_attack ; the subtle library; https://godoc.org/crypto/subtle ; encrypting and decrypting a message
Views: 383 Learn To Code
Probability and Information Theory
 
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Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 12587 nptelhrd
High Frequency Order Book Analyzer
 
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High frequency trading is a form of algorithm trading that uses powerful computers to transact a large number of orders at very fast speeds. The number of competitors in the market is very limited: only international banks, which already have great influence in the world of finance, are present many questions arise about the fairness of banks and trading players fa cing this technology. Do these methods help to form a two-speed market and two "classes" of traders? Our product is an innovative program which will be able to help professionals, retails and organisms trading on a market and that although the dominant presence of high frequency trading. In fact, our program deals with milliseconds data in order to help the user to see precise market indicators, in real time. The main difference between existing technologies and our prototype is first the analysis in milliseconds and then the flexibility and adaptability: according to the market data, our system will calculate indicators; the user is free to select the one he wants. So our system is not just the implementation of the statistical and probabilistic laws applied to an order book. Our system is a real decision support: according the market data, our system shows the different indicators and proposes the best time to buy or sell. Find our project on : https://github.com/NicolasGriere/High-Frequency-Data-Order-Book-Analyser
Views: 166 Vinuja Manicca
Cybersecurity: Crash Course Computer Science #31
 
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Cybersecurity is a set of techniques to protect the secrecy, integrity, and availability of computer systems and data against threats. In today’s episode, we’re going to unpack these three goals and talk through some strategies we use like passwords, biometrics, and access privileges to keep our information as secure, but also as accessible as possible. From massive Denial of Service, or DDos attacks, to malware and brute force password cracking there are a lot of ways for hackers to gain access to your data, so we’ll also discuss some strategies like creating strong passwords, and using 2-factor authentication, to keep your information safe. Check out Computerphile’s wonderful video on how to choose a password! https://www.youtube.com/watch?v=3NjQ9b3pgIg Pre-order our limited edition Crash Course: Computer Science Floppy Disk Coasters here! https://store.dftba.com/products/computer-science-coasters Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Want to know more about Carrie Anne? https://about.me/carrieannephilbin The Latest from PBS Digital Studios: https://www.youtube.com/playlist?list=PL1mtdjDVOoOqJzeaJAV15Tq0tZ1vKj7ZV Want to find Crash Course elsewhere on the internet? Facebook - https://www.facebook.com/YouTubeCrash... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 377727 CrashCourse
Warren Powell, "A Unified Framework for Handling Decisions and Uncertainty"
 
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Problems in energy and sustainability represent a rich mixture of decisions intermingled with different forms of uncertainty. These decision problems have been addressed by multiple communities from operations research (stochastic programming, Markov decision processes, simulation optimization, decision analysis), computer science, optimal control (from engineering and economics), and applied mathematics. In this talk, I will identify the major dimensions of this rich class of problems, spanning static to fully sequential problems, offline and online learning (including so-called “bandit” problems), derivative-free and derivative-based algorithms, with attention given to problems with expensive function evaluations. We divide solution strategies for sequential problems (“dynamic programs”) between stochastic search (“policy search”) and policies based on lookahead approximations (which include both stochastic programming as well as value functions based on Bellman’s equations). We further divide each of these two fundamental solution approaches into two subclasses, producing four classes of policies for approaching sequential stochastic optimization problems. We use a simple energy storage problem to demonstrate that each of these four classes may work best, as well as opening the door to a range of hybrid policies. I will show that a single elegant framework spans all of these approaches, providing scientists with a more comprehensive toolbox for approaching the rich problems that arise in energy and sustainability. Warren B. Powell is a professor in the Department of Operations Research and Financial Engineering at Princeton University, where he has taught since 1981 after receiving his BSE from Princeton University and Ph.D. from MIT. He is the founder and director of the laboratory for Computational Stochastic Optimization and Learning (CASTLE Labs), which spans contributions to models and algorithms in stochastic optimization, with applications to energy systems, health and medical research, and the sciences. He has two books and over 200 papers, and is working on a new book “Optimization under Uncertainty: A Unified Framework.”
Views: 980 CompSustNet
Tom Leighton
 
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Frank Thomson (Tom) Leighton PhD ’81 Professor of Applied Mathematics Head, Algorithms Group (CSAIL) Professor Tom Leighton is a professor of applied mathematics at MIT who has served as the head of the Algorithms Group in MIT’s Computer Science and Artificial Intelligence Lab (CSAIL) since its inception in 1996. In 1998, Professor Leighton co-founded Akamai Technologies, the world’s leading Internet content delivery network, where he currently serves as chief scientist and is a member of the board of directors. He is a preeminent authority on algorithms for network applications, and has published on cryptography, parallel architectures, and distributed computing, among other topics. Professor Leighton is a fellow of the American Academy of Arts & Sciences, a fellow of the Society for Industrial and Applied Mathematics, and a member of the National Academy of Engineering and National Academy of Sciences. He holds a BS in engineering from Princeton University and a PhD in mathematics from MIT.
From Bitcoin To Hashgraph (Documentary) Hidden Secrets Of Money Episode 8
 
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Bonus Features: http://www.hiddensecretsofmoney.com Today, mankind stands at a crossroads, and the path that humanity chooses may have a greater impact on our freedom and prosperity than any event in history. In 2008 a new technology was introduced that is so important that its destiny, and the destiny of mankind are inextricably linked. It is so powerful that if captured and controlled, it could enslave all of humanity. But if allowed to remain free and flourish - it could foster unimaginable levels of peace and prosperity. It has the power to replace all financial systems globally, to supplant ninety percent of Wall St, and to provide some functions of government. It has no agenda. It's always fair and impartial. It can not be manipulated, subverted, corrupted or cheated. And - it inverts the power structure and places control of one's destiny in the hands of the individual. In the future, when we look back at the 2.6 million-year timeline of human development and the major turning points that led to modern civilization - the creation of farming, the domestication of animals, the invention of the wheel, the harnessing of electricity and the splitting of the atom - the sixty year development of computers, the internet and this new technology will be looked upon as a single event...a turning point that will change the course of human history. It's called Full Consensus Distibuted Ledger Technology, and so far its major use has been for cryptocurrencies such as Bitcoin....but its potential goes far, far beyond that. The Crypto Revolution: From Bitcoin to Hashgraph is our latest episode of Hidden Secrets of Money. It’s about the evolution of cryptocurrencies and full consensus distributed ledger technology, and how they will change our world. I believe that this video is by far the easiest way for the average person to gain an understanding of what cryptocurrencies are and how they work, but more importantly, the immense power of full consensus distributed ledger technology and the impact it will have on our daily lives. I have an absolute passion for monetary history and economics, and I love teaching them. Cryptocurrencies are our future, and there is no escaping it… this is the way everything will be done from now on. But, we now stand at a crucial turning point in history. Full consensus ledgers such as Blockchain and Hashgraph have the power to enslave us, or free us… it all depends on how we choose to use them. If we choose to support centralized versions issued by governments and the financial sector we will be granting them more control over our daily lives. Politicians and bureaucrats will be able raise taxes instantly, whenever they want, on every dollar you make as you make them, and every dollar you spend as you spend them. If they think the economy needs stimulating they'll be able to enforce huge negative interest rates, effectively punishing you for not spending everything you earn before you earn it. They'll be able to decide where you can go and where you can’t, what you can buy and what you can’t, and what you can do and whatever they decide you can’t do… and if they don't like you, they can just disconnect you from the monetary system. So, will the monetary system become fully distributed and help to free mankind, or will it be centralized and enslave us? The choice is in front of us right now, and our decisions will create our future. I believe that this will be a binary outcome, there is no middle ground, it will either be one future or the other. The question is, will it be the future we want? Or the future they want? I’m a precious metals dealer and one thing I’ve learned is that gold, silver, and now free market decentralized cryptocurrencies, represent freedom. Because of this knowledge I started investing in crypto currencies long ago and also became one of the first precious metals dealers to accept bitcoin as payment for gold and silver. I would really appreciate it if you could share this video with everyone you know. I think it’s very important that as many people as possible find out about the changes to the global monetary system that are happening right now… nothing will affect us more, and everyone’s future depends on it. Thanks, Mike If you enjoyed watching this video, be sure to pick up a free copy of Mike's bestselling book, Guide to Investing in Gold & Silver: https://goldsilver.com/buy-online/investing-in-gold-and-silver/ (Want to contribute closed captions in your language for our videos? Visit this link: http://www.youtube.com/timedtext_cs_panel?tab=2&c=UCThv5tYUVaG4ZPA3p6EXZbQ)
Bitcoin Q&A: Denominations and voluntary burning
 
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What is the effect of voluntary burning or accidental loss? Does it impact deflation a lot? Why is there a limit for 21 million bitcoin? Why are there 8 decimal places? What are the implications of a decimal place increase? Are there sub-satoshi units on Lightning? As mentioned starting at 4:04, watch Tadge Dryja's presentation here: https://youtu.be/-lgYYz3y_hY There was also a paper on the topic titled "Probabilistic Lightning," written by Bloxham, Yuan ,Xia, and Jang, to which he contributed: https://courses.csail.mit.edu/6.857/2017/project/7.pdf These are questions from the (late) April and May Patreon sessions, which took place on May 5th and May 26th 2018 respectively. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop RELATED: Bitcoin, Lightning, and Streaming Money - https://youtu.be/gF_ZQ_eijPs The Internet of Money: Five Years Later - https://youtu.be/6xIq0FdmsIA The Lightning Network - https://www.youtube.com/playlist?list=PLPQwGV1aLnTurL4wU_y3jOhBi9rrpsYyi Advanced Bitcoin Scripting, Part 1: Transactions and Multisig - https://youtu.be/8FeAXjkmDcQ Advanced Bitcoin Scripting, Part 2: SegWit, Consensus, and Trustware - https://youtu.be/pQbeBduVQ4I The Lightning Network - https://youtu.be/vPnO9ExJ50A Lightning's security model - https://youtu.be/_GNsT_ufkec Eltoo, and the early days of Lightning - https://youtu.be/o6eFZ5aI9N0 Misconceptions about the Lightning Network - https://youtu.be/c4TjfaLgzj4 Lightning Network scaling - https://youtu.be/4KiWkwo48k0 Lightning Network interoperability - https://youtu.be/1HYMWcJHGXc Atomic swaps - https://youtu.be/fNFBA2UmUmg Running nodes and payment channels - https://youtu.be/ndcfBfE_yoY What is Segregated Witness (SegWit)? - https://youtu.be/dtOjjB4mD8k SegWit and fork research - https://youtu.be/OorLoi01KEE The 21 million supply cap - https://youtu.be/AABkJ55Zz3A Divisibility and deflationary monetary policy - https://youtu.be/xhLgxX_wU6E Inflation and debt systems - https://youtu.be/6CwxHiKf27A HODLing and the "get free" scheme - https://youtu.be/MhOwmsW1YNI Wealth distribution statistics - https://youtu.be/X2Qsz4eaSPY Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 [NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/ Subscribe to the channel to learn more about Bitcoin & open blockchains! Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 8268 aantonop
PSW 2364 Bitcoin and the Blockchain | Arvind Narayanan
 
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Lecture Starts at 13:01 September 9, 2016 Arvind Narayanan, Assistant Professor, Computer Science Leader, Web Transparency and Accountability Project Affiliated Faculty, Center for IT Policy Princeton University, and Affiliated Scholar, Center for Internet and Society Stanford University The digital currency Bitcoin and its underlying technology, the blockchain, have taken the world by storm. Supporters claim that they will fundamentally reshape payments, economics, and even politics around the world. Skeptics say that they are a haven for fraud and will suffer an inevitable and spectacular collapse.
Views: 366 PSW Science
2011 Killian Lecture: Ronald L. Rivest, "The Growth of Cryptography"
 
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Lecture title: "The Growth of Cryptography" Ronald L. Rivest, a professor of electrical engineering and computer science who helped develop one of the world's most widely used Internet security systems, was MIT’s James R. Killian, Jr. Faculty Achievement Award winner for 2010–2011. Rivest, the Andrew and Erna Viterbi professor in MIT's Department of Electrical Engineering and Computer Science, is known for his pioneering work in the field of cryptography, computer, and network security. February 8, 2011 Huntington Hall (10-250)
Michael A. Osborne (Oxford University) at the "digitising europe" summit in Berlin
 
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Michael A. Osborne is an information engineer; more specifically, he works in Machine Learning (a component of Artificial Intelligence). Professor Osborne designs intelligent systems: algorithms capable of substituting for human time and attention. Such algorithms, like humans, are faced with the task of understanding and acting upon complex, uncertain, data. Professor Osborne is also interested in more applied problems related to sensor networks, including fault and changepoint detection, automated observation selection and sensor placement. He has also applied probabilistic techniques in a variety of interdisciplinary collaborations, ranging from autonomous vehicles to user interfaces, astrostatistics to zoology. At the "digitising europe" summit Michael kicked off the first session with a keynote speech on 'Computerisation and the Reinvention of Work'. More: http://www.vodafone-institut.de/ https://twitter.com/vf_institute https://www.flickr.com/photos/vodafone-institute/albums/72157649482114471
Views: 1537 VodafoneInstitute
Birthday-paradox-related problem (Part I)
 
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How many different birthdays on average will a group of n randomly selected people have ? P.S. I`d like to thank the guy nicknamed Madman for his help in creating this video. Feel free to comment, like/dislike, subscribe. http://en.wikipedia.org/wiki/Birthday_problem
The Power of Theory in the Practice of Hashing with Focus on Similarity Estimation
 
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A Google TechTalk, 3/8/18, presented by Mikkel Thorup (University of Copenhagen) Talks from visiting speakers on Algorithms, Theory, and Optimization
Views: 1212 GoogleTechTalks
24. Entanglement — QComputing, EPR, and Bell
 
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MIT 8.04 Quantum Physics I, Spring 2013 View the complete course: http://ocw.mit.edu/8-04S13 Instructor: Allan Adams In this lecture, Prof. Adams discusses the basic principles of quantum computing. No-cloning theorem and Deutsch-Jozsa algorithm are introduced. The last part of the lecture is devoted to the EPR experiment and Bell's inequality. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 59413 MIT OpenCourseWare
Fellow Short Talks: Professor Andrew Blake, Alan Turing Institute Director
 
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Bio Professor Andrew Blake is Director of the Alan Turing Institute. Prior to joining the institute in 2015, Professor Blake held the position of Microsoft Distinguished Scientist and Laboratory Director of Microsoft Research Cambridge, England. He joined Microsoft in 1999 as a Senior Researcher to found the Computer Vision group. In 2008 he became a Deputy Managing Director at the lab, before assuming the directorship in 2010. Before joining Microsoft Andrew trained in mathematics and electrical engineering in Cambridge England, and studied for a doctorate in Artificial Intelligence in Edinburgh. He was an academic for 18 years, latterly on the faculty at Oxford University, where he was a pioneer in the development of the theory and algorithms that can make it possible for computers to behave as seeing machines. Professor Blake has published several books including “Visual Reconstruction” with A.Zisserman (MIT press), “Active Vision” with A. Yuille (MIT Press) and “Active Contours” with M. Isard(Springer-Verlag). He has twice won the prize of the European Conference on Computer Vision, with R. Cipolla in 1992 and with M. Isard in 1996, and was awarded the IEEE David Marr Prize (jointly with K. Toyama) in 2001. In 2006 the Royal Academy of Engineering awarded him its Silver Medal and in 2007 the Institution of Engineering and Technology presented him with the Mountbatten Medal(previously awarded to computer pioneers Maurice Wilkes and Tim Berners-Lee, amongst others.) He was elected Fellow of the Royal Academy of Engineering in 1998, Fellow of the IEEE in 2008, and Fellow of the Royal Society in 2005. In 2010, Andrew was elected to the council of the Royal Society. In 2011, he and colleagues at Microsoft Research received the Royal Academy of EngineeringMacRobert Award for their machine learning contribution to Microsoft Kinect human motion-capture. In 2012 Andrew was elected to the board of the EPSRC and also received an honorary degree of Doctor of Science from the University of Edinburgh. In 2013 Andrew was awarded an honorary degree of Doctor of Engineering from the University of Sheffield. In 2014, Andrew gave the prestigious Gibbs lecture at the Joint Mathematics Meetings (transcript available here). Professor Andrew Blake has been named as the recipient of the 2016 BCS Lovelace Medal, the top award in computing in the UK, awarded by BCS, The Chartered Institute for IT. The award is presented annually to individuals who, in the opinion of BCS, have made a significant contribution to the advancement of Information Systems. #TuringShortTalks
GABAM Lectures #2: Platon Petridis - Reconstructing the early Byzantine past
 
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GABAM Lectures #2: Reconstructing the early Byzantine past of the Greek mainland: Data from recent excavations. Yunanistan anakarası’nın erken Bizans geçmişinin yeniden inşası: Güncel kazıların verileri Platon Petridis GABAM Konuşmaları #2: The National and Kapodistrian University of Athens, Department of History and Archaeology Ulusal ve Kapodistrias Atina Üniversitesi, Tarih ve Arkeoloji Bölümü
Views: 295 Koç University
Making Green Buildings
 
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Professor Martin Fischer is offering a free online course on Making Green Buildings in January 2012. http://www.greenbuilding-class.org/
Views: 5992 mlClassStaff
Quantum Computing Documentary
 
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Please order ebook/audiobook of this video to support our channel https://www.smashwords.com/books/view/677494, https://www.amazon.co.uk/Quantum-Computing-IntroBooks-ebook/dp/B01JWN3K7U/ref=sr_1_1?s=books&ie=UTF8&qid=1539001223&sr=8-1&keywords=Quantum+Computing++introbooks or https://www.audible.com/pd/Quantum-Computing-Audiobook/B01K57NPYU?qid=1539001234&sr=sr_1_2&ref=a_search_c3_lProduct_1_2&pf_rd_p=e81b7c27-6880-467a-b5a7-13cef5d729fe&pf_rd_r=VE6BS7PH1K3S96ZGEWQE& In recent years it computing developed with great speed. According to scientist Gordon Earl Moore, the number of transistors on a processor would double every 24 months or so. Watch this to explore the world of quantum computing.
Views: 28626 Education Channel
On Methodology: Turing Laureates Discuss their Approach to Work
 
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In this video from ACM's Celebration of 50 Years of the A.M. Turing Award, Turing Laureates Andrew Yao, Marvin Minsky, Herbert Simon, Shafi Goldwasser, James Gray, Edmund Clarke and Richard Karp discuss their approach to work and share advice for those who aspire to follow in their footsteps.
l Injection Toward Effective Collaborative Filtering Using Uninteresting Items
 
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2017 java ieee projects l-Injection: Toward Effective Collaborative Filtering Using Uninteresting Items Abstract: We develop a novel framework, named as l-injection, to address the sparsity problem of recommender systems. By carefully injecting low values to a selected set of unrated user-item pairs in a user-item matrix, we demonstrate that top-N recommendation accuracies of various collaborative filtering (CF) techniques can be significantly and consistently improved. We first adopt the notion of pre-use preferences of users toward a vast amount of unrated items. Using this notion, we identify uninteresting items that have not been rated yet but are likely to receive low ratings from users, and selectively impute them as low values. As our proposed approach is method-agnostic, it can be easily applied to a variety of CF algorithms. Through comprehensive experiments with three real-life datasets (e.g., Movielens, Ciao, and Watcha), we demonstrate that our solution consistently and universally enhances the accuracies of existing CF algorithms (e.g., item-based CF, SVD-based CF, and SVD++) by 2.5 to 5 times on average. Furthermore, our solution improves the running time of those CF methods by 1.2 to 2.3 times when its setting produces the best accuracy. The datasets and codes that we used in the experiments are available at: https://goo.gl/KUrmip.
Views: 446 1 Crore Projects
SFI Community Lecture - Christopher Monroe - Quantum Computers
 
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Quantum computers exploit the bizarre features of quantum mechanics to perform tasks that are impossible using conventional means. Sending instantaneous messages across long distances or quickly computing over ungodly amounts of data are just two possibilities that arise if we can design computers to exploit quantum uncertainty, entanglement, and measurement. In this SFI Community Lecture, scientist Christopher Monroe describes the architecture of a quantum computer based on individual atoms, suspended and isolated with electric fields, and individually addressed with laser beams. This leading physical representation of a quantum computer has allowed demonstrations of small algorithms and emulations of hard quantum problems with more than 50 quantum bits. While this system can solve some esoteric tasks that cannot be accomplished in conventional devices, it remains a great challenge to build a quantum computer big enough to be useful for society. But the good news is that we don’t see any fundamental limits to scaling atomic quantum computers, and Monroe speculates as to how this might happen. Christopher Monroe is a leading atomic physicist and quantum information scientist. He demonstrated the first quantum gate realized in any system at the National Institute of Standards and Technology (NIST) in the 1990s, and at University of Michigan and University of Maryland he discovered new ways to scale trapped ion qubits and simplify their control with semiconductor chip traps, simplified lasers, and photonic interfaces for long-distance entanglement. He received the American Physical Society I.I. Rabi Prize and the Arthur Schawlow Laser Science Prize, and has been elected into the National Academy of Sciences. He is Co-Founder and Chief Scientist at IonQ in College Park, MD.
Views: 925 Santa Fe Institute
What does superpolynomial mean?
 
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What does superpolynomial mean? A spoken definition of superpolynomial. Intro Sound: Typewriter - Tamskp Licensed under CC:BA 3.0 Outro Music: Groove Groove - Kevin MacLeod (incompetech.com) Licensed under CC:BA 3.0 Intro/Outro Photo: The best days are not planned - Marcus Hansson Licensed under CC-BY-2.0 Book Image: Open Book template PSD - DougitDesign Licensed under CC:BA 3.0 Text derived from: http://en.wiktionary.org/wiki/superpolynomial Text to Speech powered by TTS-API.COM
The Art of Reduction
 
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Dr. Avi Wigderson, from the Institute for Advanced Study, presents "The art of reduction (or, Depth through Breadth)" December 4, 2008. Note: Original video was 320x240.
Views: 598 Rutgers University
TEES: An Efficient Search Scheme over Encrypted Data on Mobile Cloud | Final Year Projects 2016
 
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Including Packages ======================= * Base Paper * Complete Source Code * Complete Documentation * Complete Presentation Slides * Flow Diagram * Database File * Screenshots * Execution Procedure * Readme File * Addons * Video Tutorials * Supporting Softwares Specialization ======================= * 24/7 Support * Ticketing System * Voice Conference * Video On Demand * * Remote Connectivity * * Code Customization ** * Document Customization ** * Live Chat Support * Toll Free Support * Call Us:+91 967-774-8277, +91 967-775-1577, +91 958-553-3547 Shop Now @ http://clickmyproject.com Get Discount @ https://goo.gl/lGybbe Chat Now @ http://goo.gl/snglrO Visit Our Channel: http://www.youtube.com/clickmyproject Mail Us: [email protected]
Views: 224 Clickmyproject
Hugh Madden CTO talks about the openANX platform
 
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What is openANX? The openANX platform will take advantage of technical developments on the Ethereum blockchain such as payment channels (Raiden, 0x, Swap, ERC20) and utilize them to overcome the challenges faced by the current CEM. It will co-opt the strengths of the existing model to improve the existent decentralized exchange attempts by linking existing exchange platforms (“Asset Gateways”) to the network and enforcing a collateralized deposit system that will provide users with a way to measure risk. It will also provide an off-chain, legally enforceable dispute resolution system to provide much needed consumer protection. The key deliverables of openANX are to: • Migrate existing exchanges to the role of collateralized Asset Gateways, bridging fiat to tokens in a collateralized, transparent manner • Provide credit risk trading to allow price discovery and a market “voice” of gateway creditworthiness • Provide dispute resolution to access collateral in the event of disputes • Aggregate order books using ANX International (“ANX”)’s proprietary “aggregation liquidity IP”, and merging the liquidity of participating Asset Gateways • Complement the wave of “token only” decentralized matching engine projects which otherwise would not have fiat support, and hence further increase liquidity, and accessibility for the general public • Both order book and Peer-to-Peer (“P2P) Over the Counter (“OTC”) order matching • Migrate ANX International’s existing user base to the new platform, ensuring a critical mass of initial users; and then growing a consortium of new and existing exchanges committed to migrating to the openANX platform Shortcomings of the current Centralized Exchange Model (CEM) The current paradigm of the CEM began with Mt. Gox, and has developed and matured to reach the status quo. The CEM allows companies to provide services for users to buy/sell tokens, or exchange them for other assets through a central gateway platform for a fee. These proceeds ensure the service provider in return offers customer support, security and a suite of product offerings. The strengths of the system have developed over time to coalesce around banking relationships (the ability to turn Bitcoin or ETH into cash) and providing liquidity. However, with repeated security breaches in various exchanges and poor management, public’s faith in the CEM system is increasingly waning. The fundamental question is one of trust – without an effective way to measure risk, users tend to under-price its potential. Age of Decentralized Exchanges The shortcomings of centralized exchanges have seen a number of decentralized exchanges emerge. These largely fit into two categories; those that handle native fiat currencies, and those that handle only pure digital tokens. A number of pure decentralized digital token exchanges and protocols are starting to emerge, notably on-blockchain markets such as cryptoderivatives.market, and offblockchain protocols such as 0x and Raiden for single blockchain token trading. For cross blockchain exchange, the emergence of the Lightning network for cross blockchain atomic swaps is promising.
Views: 1332 Delegate Doom
Detecting Malicious Facebook Applications
 
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2015 IEEE Transaction on Networking For More Details::Contact::K.Manjunath - 09535866270 http://www.tmksinfotech.com and http://www.bemtechprojects.com Bangalore - Karnataka
Views: 2040 manju nath
Linear And Differential Cryptanalysis
 
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ChennaiSunday Systems Pvt.Ltd We are ready to provide guidance to successfully complete your projects and also download the abstract, base paper from our website IEEE 2012 Java: http://www.chennaisunday.com/ieee-2012-java-projects.html IEEE 2012 Dot Net: http://www.chennaisunday.com/ieee-2012-projects.html IEEE 2011 JAVA: http://www.chennaisunday.com/ieee-2011-java-projects.html IEEE 2011 DOT NET: http://www.chennaisunday.com/ieee-2011-projects.html IEEE 2010 JAVA: http://www.chennaisunday.com/ieee-2010-java-projects.html IEEE 2010 DOT NET: http://www.chennaisunday.com/ieee-2010-dotnet-projects.html Real Time APPLICATION: http://www.chennaisunday.com/softwareprojects.html Contact: 9566137117/ 044-42046569 -- *Contact * * P.Sivakumar MCA Director ChennaiSunday Systems Pvt Ltd Phone No: 09566137117 New No.82, 3rd Floor, Arcot Road, Kodambakkam, Chennai - 600 024. URL: www.chennaisunday.com Location: http://www.chennaisunday.com/mapview.html
Views: 8947 Yasodha Shanmugam
Cryptographic Hash Functions (Contd...1)
 
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Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 7666 nptelhrd

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