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Search results “Prng in cryptography books”
Adrien Hauteville - RankSynd a PRNG Based on Rank Metric
 
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Title: RankSynd a PRNG Based on Rank Metric Authors: Philippe Gaborit, Adrien Hauteville, and Jean-Pierre Tillich 7th International Conference on Post-Quantum Cryptography PQCrypto 2016 https://pqcrypto2016.jp/program/ Proceedings http://www.springer.com/jp/book/9783319293592
Views: 180 PQCrypto 2016
Random Numbers (How Software Works)
 
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How Software Works is a book and video series explaining the magic behind software encryption, CGI, video game graphics, and a lot more. The book uses plain language and lots of diagrams, so no technical or programming background is required. Come discover what's really happening inside your computer! This episode is about random numbers--why software needs them, why they can't really make them, and why that's okay. Learn more about the book... - At the Amazon page (http://amzn.to/1mZ276M). - At my publisher (http://www.nostarch.com/howsoftwareworks) - At my site (http://www.vantonspraul.com/HSW). If you'd like to contact me visit my site (http://vantonspraul.com), or just leave a comment below. Suggestions for future topics are welcome!
Views: 8528 V. Anton Spraul
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: 180315 Seeker
What should we learn next? | Journey into cryptography | Computer Science | Khan Academy
 
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Help decide what's next! What do you want to learn? Watch the next lesson: https://www.khanacademy.org/computing/computer-science/cryptography/comp-number-theory/v/primality-test-challenge?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Missed the previous lesson? https://www.khanacademy.org/computing/computer-science/cryptography/modern-crypt/v/rsa-encryption-part-4?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Computer Science on Khan Academy: Learn select topics from computer science - algorithms (how we solve common problems in computer science and measure the efficiency of our solutions), cryptography (how we protect secret information), and information theory (how we encode and compress information). About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Computer Science channel: https://www.youtube.com/channel/UC8uHgAVBOy5h1fDsjQghWCw?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 72636 Khan Academy Labs
Password Cracking - Computerphile
 
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'Beast' cracks billions of passwords a second, Dr Mike Pound demonstrates why you should probably change your passwords... Please note,at one point during the video Mike suggests using SHA512. Please check whatever the recommended process is at the time you view the video. How NOT to Store Passwords: https://youtu.be/8ZtInClXe1Q Password Choice: https://youtu.be/3NjQ9b3pgIg Deep Learning: https://youtu.be/l42lr8AlrHk Cookie Stealing: https://youtu.be/T1QEs3mdJoc http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 1298364 Computerphile
Attacking the Linux PRNG on Android
 
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Speaker: David Kaplan, Senior Security Researcher, IBM Security Systems "Hack Talks: The Technological Aspects of Cybersecurity" The Yuval Ne'eman Science, Technology & Security Workshop, Tel Aviv University, 15.9.14
Views: 194 TAUVOD
Public key cryptography - Diffie-Hellman Key Exchange (full version)
 
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The history behind public key cryptography & the Diffie-Hellman key exchange algorithm. We also have a video on RSA here: https://www.youtube.com/watch?v=wXB-V_Keiu8
Views: 591523 Art of the Problem
Block Cipher Operation (BCO): Part 2
 
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Fundamental concepts of Block Cipher Operation are discussed. Various extensions of DES are presented. Encryption modes for long messages are explained. Double DES, Triple DES, DES-X Encryption Modes for long messages: Electronic Code Book (ECB) Cipher Block Chaining (CBC) Cipher Feedback (CFB) Output Feedback (OFB) Counter (CTR) Mode XTS-AES Mode for Block-oriented Storage Devices
Views: 659 Scholartica Channel
The Multiplication Multiverse | Infinite Series
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi What happens if you multiply things that aren’t numbers? And what happens if that multiplication is not associative? Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode The Heat Equation + Special Announcement | Infinite Series https://www.youtube.com/watch?v=NHucpzbD600 Multiplication of numbers is an associative property and we can make sense of “multiplication” between things that aren’t numbers but that’s not considered as associativity. And since we’re talking about associativity, you might wonder about that other property of real numbers: You know: when multiplying two numbers, swapping their order doesn’t change the answer. This property is called commutativity. But keep in mind: it’s a very special property to have! Not everything in life is commutative. For example, getting dressed in the morning... putting on your socks and then your shoes is NOT the same as first putting on your shoes and then your socks. Link to Resources: The Fundamental Group: ‘Loop concatenation’ http://www.math.uchicago.edu/~may/VIGRE/VIGRE2009/REUPapers/Landau.pdf Written and Hosted by Tai-Danae Bradley Produced by Rusty Ward Graphics by Ray Lux Assistant Editing and Sound Design by Mike Petrow Made by Kornhaber Brown (www.kornhaberbrown.com) Thanks to Matthew O'Connor and Yana Chernobilsky who are supporting us on Patreon at the Identity level! And thanks to Nicholas Rose and Mauricio Pacheco who are supporting us at the Lemma level!
Views: 90493 PBS Infinite Series
Pseudorandom Meaning
 
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Video shows what pseudorandom means. Of a sequence of numbers, such that it has all the properties of a random sequence following some probability distribution (except true randomness), but is actually generated using a deterministic algorithm.. Pseudorandom Meaning. How to pronounce, definition audio dictionary. How to say pseudorandom. Powered by MaryTTS, Wiktionary
Views: 130 SDictionary
Ingo von Maurich - IND-CCA Secure Hybrid Encryption from QC-MDPC Niederreiter
 
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Title: IND-CCA Secure Hybrid Encryption from QC-MDPC Niederreiter Authors: Ingo von Maurich, Lukas Heberle, and Tim Güneysu 7th International Conference on Post-Quantum Cryptography PQCrypto 2016 https://pqcrypto2016.jp/program/ Proceedings http://www.springer.com/jp/book/9783319293592
Views: 312 PQCrypto 2016
File Encryption Solution - Applied Cryptography
 
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This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 1286 Udacity
Rodolfo Canto Torres - Analysis of Information Set Decoding for a Sub-Linear Error Weight
 
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Title: Analysis of Information Set Decoding for a Sub-Linear Error Weight Authors: Rodolfo Canto Torres and Nicolas Sendrier 7th International Conference on Post-Quantum Cryptography PQCrypto 2016 https://pqcrypto2016.jp/program/ Proceedings http://www.springer.com/jp/book/9783319293592
Views: 151 PQCrypto 2016
Ilaria Chillotti - An Homomorphic LWE based E-voting Scheme
 
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Title: An Homomorphic LWE based E-voting Scheme Authors: Ilaria Chillotti, Nicolas Gama, Mariya Georgieva, and Malika Izabachene 7th International Conference on Post-Quantum Cryptography PQCrypto 2016 https://pqcrypto2016.jp/program/ Proceedings http://www.springer.com/jp/book/9783319293592
Views: 460 PQCrypto 2016
The Mathematics of Diffie-Hellman Key Exchange | Infinite Series
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi Symmetric keys are essential to encrypting messages. How can two people share the same key without someone else getting a hold of it? Upfront asymmetric encryption is one way, but another is Diffie-Hellman key exchange. This is part 3 in our Cryptography 101 series. Check out the playlist here for parts 1 & 2: https://www.youtube.com/watch?v=NOs34_-eREk&list=PLa6IE8XPP_gmVt-Q4ldHi56mYsBuOg2Qw Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode Topology vs. “a” Topology https://www.youtube.com/watch?v=tdOaMOcxY7U&t=13s Symmetric single-key encryption schemes have become the workhorses of secure communication for a good reason. They’re fast and practically bulletproof… once two parties like Alice and Bob have a single shared key in hand. And that’s the challenge -- they can’t use symmetric key encryption to share the original symmetric key, so how do they get started? Written and Hosted by Gabe Perez-Giz Produced by Rusty Ward Graphics by Ray Lux Assistant Editing and Sound Design by Mike Petrow and Meah Denee Barrington Made by Kornhaber Brown (www.kornhaberbrown.com) Thanks to Matthew O'Connor, Yana Chernobilsky, and John Hoffman who are supporting us on Patreon at the Identity level! And thanks to Nicholas Rose, Jason Hise, Thomas Scheer, Marting Sergio H. Faester, CSS, and Mauricio Pacheco who are supporting us at the Lemma level!
Views: 45153 PBS Infinite Series
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: 290782 SciShow
Decoded ancient Aztec Alien Calendar
 
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How to read the aztec calendar, a new discovery By Michael LaGrow, Erich von Däniken I read your work when I was 12 and "bought"it. Knot difficult to Believe, as it is how WE came to B. This is whalespitindustries research on the subject "Ancient Aliens" *Johannes Trithemius-Steganographia Polygraphiae (1518) -- the first printed book on cryptography
Views: 191 Popular Now
Cryptography in Java. 6- ECB AES128 encryption implementation in Java
 
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Hi guys we will learn in this tutorial series about the basics of cryptography and how to implement it in java. We will start with hashing to encryption and then to encoding. In hashing we will be using SHA-1, in ecryption we will focus on AES-128 and for encoding we will use Apache's Base64 encoder and decoder. Here we will implement the ECB encryption AES 128 algo in Java and see how it works.
COMIT Q&A - Cryptographically Secure Off-chain Multi-asset Instant Transaction network
 
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COMIT Q&A with Julian Hosp Co-Founder and President and Philipp Hoenisch, Research Lead. At TenX it is our mission to make virtual currencies spendable anytime anywhere. ----------------- New to cryptocurrencies? You might want to read this book first! http://cryptofit.community/cryptobook If you want to keep up with our latest progress please follow us on: Website: http://www.tenx.tech TenX Chat: https://chat.tenx.tech/ Facebook: https://www.facebook.com/tenxwallet/ Twitter: https://twitter.com/tenxwallet Linkedin: https://www.linkedin.com/company/tenxwallet Reddit: https://www.reddit.com/r/TenX/ iTunes Podcast: https://itunes.apple.com/sg/podcast/tenx-cryptoshow-bringing-cryptocurrencies-blockchain/id1323952161
Views: 3883 TenX
Philippe Gaborit - RankSign: An Efficient Signature Algorithm Based on the Rank  Metric
 
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Philippe Gaborit of the University of Limoges and the XLIM Research Institute presented a talk titled: RankSign: An efficient signature algorithm based on the rank metric at the 2014 PQCrypto conference in October, 2014. Abstract: In this paper we propose a new approach to code-based signatures that makes use in particular of rank metric codes. When the classical approach consists in finding the unique preimage of a syndrome through a decoding algorithm, we propose to introduce the notion of mixed decoding of erasures and errors for building signature schemes. In that case the difficult problem becomes, as in the case in lattice-based cryptography, finding a preimage of weight above the Gilbert-Varshamov bound (case where many solutions occur) rather than finding a unique preimage of weight below the Gilbert-Varshamov bound. The paper describes RankSign: a new signature algorithm for the rank metric based on a new mixed algorithm for decoding erasures and errors for the recently introduced Low Rank Parity Check (LRPC) codes. We explain how it is possible (depending on choices of parameters) to obtain a full decoding algorithm which is able to find a preimage of reasonable rank weight for any random syndrome with a very strong probability. We study the semantic security of our signature algorithm and show how it is possible that no information leaks through signatures. Finally we give several examples of parameters for our scheme, some of which with public key of size 11, 520 bits and signature of size 1728 bits. Moreover the scheme can be very fast for small base fields. 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
Public key cryptography: What is it? | Computer Science | Khan Academy
 
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Why do we need public key cryptography? Watch the next lesson: https://www.khanacademy.org/computing/computer-science/cryptography/modern-crypt/v/discrete-logarithm-problem?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Missed the previous lesson? https://www.khanacademy.org/computing/computer-science/cryptography/modern-crypt/v/the-fundamental-theorem-of-arithmetic-1?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Computer Science on Khan Academy: Learn select topics from computer science - algorithms (how we solve common problems in computer science and measure the efficiency of our solutions), cryptography (how we protect secret information), and information theory (how we encode and compress information). About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Computer Science channel: https://www.youtube.com/channel/UC8uHgAVBOy5h1fDsjQghWCw?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 129240 Khan Academy Labs
Chinese Remainder Theorem | PicoCTF 2017 [32] Weird RSA
 
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Hang with our community on Discord! https://discord.gg/Kgtnfw4 If you would like to support me, please like, comment & subscribe, and check me out on Patreon: https://patreon.com/johnhammond010 CYBER SECURITY Humble Bundle: https://www.humblebundle.com/books/cybersecurity-wiley-books?partner=johnhammond PayPal: http://paypal.me/johnhammond010 Site: http://www.johnhammond.org Twitter: https://twitter.com/_johnhammond
Views: 1003 John Hammond
Your Brain as Math - Part 1 | Infinite Series
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi What does your brain look like when it's broken down mathematically? And what can this tell us? This is Part 1 in our Your Brain as Math mini-series. Check out Part 2 here: https://www.youtube.com/watch?v=rlI1KOo1gp4 Check out Part 3 here: https://www.youtube.com/watch?v=akgU8nRNIp0 Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode Stochastic Supertasks https://www.youtube.com/watch?v=Sdp_V0L99sw In order to dive deeper into an exciting topic, we're mixing up the format. Over the next three days, we’ll spend the next three episodes exploring an incredible application of seemingly purely-abstract mathematics: how algebraic topology can help us decode the connections among neurons in our brains, to help us understand their function. Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Assistant Editing and Sound Design by Mike Petrow Made by Kornhaber Brown (www.kornhaberbrown.com) Resources: Cliques of Neurons Bound into Cavities Provide a Missing Link between Structure and Function http://journal.frontiersin.org/article/10.3389/fncom.2017.00048/full The Blue Brain Project http://bluebrain.epfl.ch/ Barcodes: The Persistent Topology of Data https://www.math.upenn.edu/~ghrist/preprints/barcodes.pdf Network Neuroscience http://www.nature.com/neuro/journal/v20/n3/full/nn.4502.html Algebraic Topology https://www.math.cornell.edu/~hatcher/AT/ATpage.html Special thanks to Kathryn Hess and Florian Frick! Comments answered by Kelsey: Vriskanon https://www.youtube.com/watch?v=Sdp_V0L99sw&lc=z22ic1ehnlqhi3g4g04t1aokgo4wjichzrqe5sqovhw4rk0h00410 Challenge Winner : Florence B Special thanks to Matthew O'Connor and Yana Chernobilsky who are supporting us on Patreon at the Identity level! And thanks to Mauricio Pacheco who is supporting us at the Lemma level!
Views: 113287 PBS Infinite Series
stream and block cipher
 
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Views: 15788 Reema Thareja
Vladimir Soukharev - Post-Quantum Security Models for Authenticated Encryption
 
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Title: Post-Quantum Security Models for Authenticated Encryption Authors: Vladimir Soukharev, David Jao, and Srinath Seshadri 7th International Conference on Post-Quantum Cryptography PQCrypto 2016 https://pqcrypto2016.jp/program/ Proceedings http://www.springer.com/jp/book/9783319293592
Views: 207 PQCrypto 2016
Quantum Optics – Quantum random numbers generator QRNG
 
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One-photon based quantum technologies In this lesson, you will discover two quantum technologies based on one photon sources. Quantum technologies allow one to achieve a goal in a way qualitatively different from a classical technology aiming at the same goal. For instance, quantum cryptography is immune to progress in computers power, while many classical cryptography methods can in principle be broken when we have more powerful computers. Similarly, quantum random number generators yield true random numbers, while classical random number generators only produce pseudo-random numbers, which might be guessed by somebody else than the user. This lesson is also an opportunity to learn two important concepts in quantum information: (i) qubits based on photon polarization; (ii) the celebrated no-cloning theorem, at the root of the security of quantum cryptography. Learning Objectives • Apply your knowledge about the behavior of a single photon on a beam splitter to quantum random number generators. • Understand the no-cloning theorem • Understand and remember the properties of q qubit This course gives you access to basic tools and concepts to understand research articles and books on modern quantum optics. You will learn about quantization of light, formalism to describe quantum states of light without any classical analogue, and observables allowing one to demonstrate typical quantum properties of these states. These tools will be applied to the emblematic case of a one-photon wave packet, which behaves both as a particle and a wave. Wave-particle duality is a great quantum mystery in the words of Richard Feynman. You will be able to fully appreciate real experiments demonstrating wave-particle duality for a single photon, and applications to quantum technologies based on single photon sources, which are now commercially available. The tools presented in this course will be widely used in our second quantum optics course, which will present more advanced topics such as entanglement, interaction of quantized light with matter, squeezed light, etc... So if you have a good knowledge in basic quantum mechanics and classical electromagnetism, but always wanted to know: • how to go from classical electromagnetism to quantized radiation, • how the concept of photon emerges, • how a unified formalism is able to describe apparently contradictory behaviors observed in quantum optics labs, • how creative physicists and engineers have invented totally new technologies based on quantum properties of light, then this course is for you. Subscribe at: https://www.coursera.org
Views: 154 intrigano
Stream Ciphers
 
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Lecture to the Summer Interns in Cryptology at R. C. Bose Centre for Cryptology and Security, Indian Statistical Institute, Kolkata, May 16, 2017 (recording begins after a couple of minutes of the start of the lecture)
Views: 247 Goutam Paul
Network Mathematics and Rival Factions | Infinite Series
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi The theory of social networks allows us to mathematically model and analyze the relationships between governments, organizations and even the rival factions warring on Game of Thrones. Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode Arrow’s Impossibility Theorem https://www.youtube.com/watch?v=AhVR7gFMKNg Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Made by Kornhaber Brown (www.kornhaberbrown.com) Resources and Special thanks: Network, Crowds and Markets, by David Easley and John Kleinberg :: https://www.cs.cornell.edu/home/kleinber/networks-book/ Cartwright and Harary :: http://snap.stanford.edu/class/cs224w-readings/cartwright56balance.pdf Antal, Krapivsky, and Redner :: http://physics.bu.edu/~redner/pubs/pdf/dresden.pdf Steven Strogatz Lecture :: https://www.youtube.com/watch?v=P60sWUxluyk Special Thanks: Steven Strogatz Commonly, in the field of social network analysis, one uses a graph - also called a network - where the vertices, or nodes, represent individuals and the edges represent something about the relationships or interactions between individuals. These networks might represent Facebook friendships, or help us understand the spread of disease. This episode focuses on one model of a social network that encodes whether relationships are positive or negative -- in other words, if they’re friendly or hostile -- and the notion of structural balance. Challenge Winners: Cantor’s Cat https://www.youtube.com/watch?v=AhVR7gFMKNg&lc=z13lyxtxmom1tv51y23tzluompyzg5xkw David de Kloet https://www.youtube.com/watch?v=AhVR7gFMKNg&lc=z13lyxtxmom1tv51y23tzluompyzg5xkw.1498299129602777 Comments answered by Kelsey: Edelopo https://www.youtube.com/watch?v=AhVR7gFMKNg&lc=z12ftje5aybuxhro204chdn4tuqovxwjapk0k
Views: 72183 PBS Infinite Series
C# Beginners Tutorial - 54 - Generating Random Numbers
 
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Facebook - https://www.facebook.com/TheNewBoston-464114846956315/ GitHub - https://github.com/buckyroberts Google+ - https://plus.google.com/+BuckyRoberts LinkedIn - https://www.linkedin.com/in/buckyroberts reddit - https://www.reddit.com/r/thenewboston/ Support - https://www.patreon.com/thenewboston thenewboston - https://thenewboston.com/ Twitter - https://twitter.com/bucky_roberts
Views: 52745 thenewboston
Eriko Hironaka - Lehmer's Problem and Dilatations of Mapping Classes
 
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Eriko Hironaka talks at the Worldwide Center of Mathematics "Lehmer's Problem and Dilatations of Mapping Classes"
What was Fermat’s “Marvelous" Proof? | Infinite Series
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi If Fermat had a little more room in his margin, what proof would he have written there? Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Resources: Contemporary Abstract Algebra by Joseph Gallian https://www.amazon.com/Contemporary-Abstract-Algebra-Joseph-Gallian/dp/1133599702 Standard Definitions in Ring Theory by Keith Conrad http://www.math.uconn.edu/~kconrad/blurbs/ringtheory/ringdefs.pdf Rings and First Examples (online course by Prof. Matthew Salomone) https://www.youtube.com/watch?v=h4UCMd8dyiM Fermat's Enigma by Simon Singh https://www.amazon.com/Fermats-Enigma-Greatest-Mathematical-Problem/dp/0385493622 Who was first to differentiate between prime and irreducible elements? (StackExchange) https://hsm.stackexchange.com/questions/3754/who-was-first-to-differentiate-between-prime-and-irreducible-elements Previous Episodes: What Does It Mean to be a Number? https://www.youtube.com/watch?v=3gBoP8jZ1Is What are Numbers Made of? https://www.youtube.com/watch?v=S4zfmcTC5bM Gabe's references from the comments: Blog post about the Peano axioms and construction of natural numbers by Robert Low: http://robjlow.blogspot.co.uk/2018/01/whats-number-1-naturally.html Recommended by a viewer for connections to formulation of numbers in computer science: https://softwarefoundations.cis.upenn.edu/ In 1637, Pierre de Fermat claimed to have the proof to his famous conjecture, but, as the story goes, it was too large to write in the margin of his book. Yet even after Andrew Wiles’s proof more than 300 years later, we’re still left wondering: what proof did Fermat have in mind? The mystery surrounding Fermat’s last theorem may have to do with the way we understand prime numbers. You all know what prime numbers are. An integer greater than 1 is called prime if it has exactly two factors: 1 and itself. In other words, p is prime if whenever you write p as a product of two integers, then one of those integers turns out to be 1. In fact, this definition works for negative integers, too. We simply incorporate -1. But the prime numbers satisfy another definition that maybe you haven’t thought about: An integer p is prime if, whenever p divides a product of two integers, then p divides at least one of those two integers. Written and Hosted by Tai-Danae Bradley Produced by Rusty Ward Graphics by Ray Lux Assistant Editing and Sound Design by Mike Petrow and Linda Huang Made by Kornhaber Brown (www.kornhaberbrown.com) Special thanks to Roman Pinchuk for supporting us on our Converse level on Patreon. Along with thanks to Matthew O'Connor, Yana Chernobilsky, and John Hoffman who are supporting us on Patreon at the Identity level! And thanks to Mauricio Pacheco who are supporting us at the Lemma level!
Views: 64477 PBS Infinite Series
How Many Humans Have the Same Number of Body Hairs? | Infinite Series | PBS Digital Studios
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi Do two people on the planet have the exact same number of body hairs? How about more than two? There’s a simple yet powerful mathematical principle that can help you find out the answer. Kelsey Houston-Edwards breaks down the Pigeonhole Principle and explains how it can be used to answer some pretty perplexing questions. Thumbnail Wallpaper: http://imgur.com/a/yLfHU Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Made by Kornhaber Brown (www.kornhaberbrown.com) The Heart of Mathematics http://www.goodreads.com/book/show/1638954.The_Heart_of_Mathematics
Views: 97058 PBS Infinite Series
Phishing & Malicious Software ☆ IT Lecture
 
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lll➤ Gratis Crypto-Coins: https://crypto-airdrops.de ) More about malicious software, phishing and anti-virus concepts in this IT Lecture. That´s what you will learn in this lesson. Also have a look at the other parts of the course, and thanks for watching. Phishing is the act of attempting to acquire sensitive information such as usernames, passwords, and credit card details (and sometimes, indirectly, money) by masquerading as a trustworthy entity in an electronic communication. http://en.wikipedia.org/wiki/Phishing Malware, short for malicious software, is any software used to disrupt computer operation, gather sensitive information, or gain access to private computer systems. http://en.wikipedia.org/wiki/Malicious_software
Arrow's Impossibility Theorem | Infinite Series
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi The bizarre Arrow’s Impossibility Theorem, or Arrow’s Paradox, shows a counterintuitive relationship between fair voting procedures and dictatorships. Start your free trial with Squarespace at http://squarespace.com/infiniteseries and enter offer code “infinite” to get 10% off your first purchase. Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode Voting Systems and the Condorcet Criterion https://www.youtube.com/watch?v=HoAnYQZrNrQ Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Made by Kornhaber Brown (www.kornhaberbrown.com) Additional Resources Networks, Crowds and Markets:: https://www.cs.cornell.edu/home/kleinber/networks-book/ Original Paper by Kenneth Arrow:: https://web.archive.org/web/20110720090207/http://gatton.uky.edu/Faculty/hoytw/751/articles/arrow.pdf Different voting systems can produce radically different election results, so it’s important to ensure the voting system we’re using has certain properties - that it fairly represents the opinions of the electorates. The impressively counterintuitive Arrow’s Impossibility Theorem demonstrates that this is much harder than you might think. Thanks: Ben Houston-Edwards and Iian Smythe Comments answered by Kelsey: Johan Richter https://www.youtube.com/watch?v=HoAnYQZrNrQ&lc=z12bt1nabyievh4yg04chlvpdnisxnw5rx00k Nat Tuck https://www.youtube.com/watch?v=HoAnYQZrNrQ&lc=z12tetkx1wzocn2ue23wzdfg5sn2dhhh004
Views: 95114 PBS Infinite Series
JPG Steganography | CodefestCTF 2018 "Hidden Agenda"
 
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Hang with our community on Discord! https://discord.gg/VCwJBcn If you would like to support me, please like, comment & subscribe, and check me out on Patreon: https://patreon.com/johnhammond010 PayPal: http://paypal.me/johnhammond010 Site: http://www.johnhammond.org Twitter: https://twitter.com/_johnhammond
Views: 1524 John Hammond
DC16 Badge Hack: PRNG w/ PWM dimming
 
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From the DEFCON 16 Badge Hacking Contest. This entry was a firmware modification for a pseudorandom number generator (PNRG), displaying the bits on the 8 LEDs. Dimming of the LEDs was also enabled using pulse-width modulation (PWM).
Views: 191 Joe Grand
Unraveling DNA with Rational Tangles | Infinite Series
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi When you think about math, what do you think of? Numbers? Equations? Patterns maybe? How about… knots? As in, actual tangles and knots? Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode: How Big are All Infinities Combined? (Cantor’s Paradox) https://www.youtube.com/watch?v=TbeA1rhV0D0 There is a special kind of mathematical tangle called a rational tangle, first defined by mathematician John Conway around 1970 which relates to biology and the study of DNA. Written and Hosted by Tai-Danae Bradley Produced by Rusty Ward Graphics by Ray Lux Assistant Editing and Sound Design by Mike Petrow and Linda Huang Made by Kornhaber Brown (www.kornhaberbrown.com) Resources: Modeling protein-DNA complexes with tangles by Isabel Darcy (the tangle examples in today’s episode can be found here) https://www.sciencedirect.com/science/article/pii/S0898122107005718 Understanding Rational Tangles (Recreational Guide) https://www.mathteacherscircle.org/assets/session-materials/JTantonRationalTangles.pdf The Knot Book by Colin Adams https://www.amazon.com/Knot-Book-Colin-Adams/dp/0821836781 Knot Theory and Its Applications by Kunio Murasugi https://www.amazon.com/Theory-Applications-Modern-Birkh%C3%A4user-Classics/dp/081764718X On the Classification of Rational Tangles by Louis Kauffman and Sofia Lambropoulou https://arxiv.org/pdf/math/0311499.pdf DNA Topology by Andrew Bates and Anthony Maxwell https://www.amazon.com/Topology-Oxford-Biosciences-Andrew-Bates/dp/0198506554 Proof of Conway’s Rational Tangle Theorem http://homepages.math.uic.edu/~kauffman/RTang.pdf The Shape of DNA (video with Mariel Vasquez) https://www.youtube.com/watch?v=AxxnziuL408 How DNA Unties its Own Knots (video on topoisomerase with Mariel Vasquez) https://www.youtube.com/watch?v=UkmQNbvlK8s Knots and Quantum Theory by Edward Witten https://www.ias.edu/ideas/2011/witten-knots-quantum-theory Tangles, Physics, and Category Theory http://math.ucr.edu/home/baez/tangles.html My Favorite Theorem Podcast https://kpknudson.com/my-favorite-theorem/ Topics in Knots and Algebra (Online Course at Bridgewater State University) https://www.youtube.com/watch?v=fpoGoAscqX4&list=PLL0ATV5XYF8BfT8CmmzKnfTlf3V9hQgj9 Special thanks to Roman Pinchuk for supporting us on our Converse level on Patreon. Along with thanks to Matthew O'Connor, Yana Chernobilsky, and John Hoffman who are supporting us on Patreon at the Identity level! And thanks to Mauricio Pacheco and Andrew Poelstra who is supporting us at the Lemma level!
Views: 30389 PBS Infinite Series
Topology vs "a" Topology | Infinite Series
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi What exactly is a topological space? Learn through active problem-solving at Brilliant: https://brilliant.org/InfiniteSeries/ Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode This Video was Not Encrypted with RSA | Infinite Series https://www.youtube.com/watch?v=4Tb1q8dSIlI We’ve talked about topology here on Infinite Series. It’s the branch of math where we study properties of shapes that are preserved no matter how you bend, twist, stretch or deform them. And you’ve probably come across some cool examples of these shapes - or topological spaces - like spheres and tori, Mobius bands and Klein bottles. In this episode we discuss the the 3 axioms that underlie all of topology. If you want to dive deeper after watching this episode check out the links below: References: Topology Via Logic by S. Vickers https://books.google.com/books/about/Topology_Via_Logic.html?id=peXBNAEACAAJ Topology by Munkres https://www.amazon.com/Topology-2nd-James-Munkres/dp/0131816292 For the solution to the challenge question check out: http://www.math3ma.com/mathema/2017/12/21/topology-vs-a-topology Written and Hosted by Tai-Dinae Bradley Produced by Rusty Ward Graphics by Ray Lux Assistant Editing and Sound Design by Meah Denee Barrington and Emma Dessau Made by Kornhaber Brown (www.kornhaberbrown.com) Thanks to Matthew O'Connor, Yana Chernobilsky and John Hofmann who are supporting us on Patreon at the Identity level! And thanks to Nicholas Rose and Mauricio Pacheco who are supporting us at the Lemma level!
Views: 56066 PBS Infinite Series
Higher-Dimensional Tic-Tac-Toe | Infinite Series
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi Regular tic-tac-toe can get a bit boring -- if both players are playing optimally, it always ends in a draw. But what happens if you increase the width of the board? Or increase the dimension of the board? Or increase both? Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode How the Axiom of Choice Gives Sizeless Sets | Infinite Series https://www.youtube.com/watch?v=hcRZadc5KpI The standard game of tic-tac-toe is too easy. How can we, as mathematicians, play with the combinatorics of tic-tac-toe? There are (at least) three easy ways to modify the game of tic-tac-toe: increase the width of the board - like *this* 5x5 board - increase the dimension of the board - like *this* 3x3x3 board - or increase both, like this 4x4x4 board. Challenge Winner of the How the Axiom of Choice Gives Sizeless Sets: For Your Math Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Assistant Editing and Sound Design by Mike Petrow Made by Kornhaber Brown (www.kornhaberbrown.com) Resources: Hales/Jewett paper: http://www.ams.org/journals/tran/1963-106-02/S0002-9947-1963-0143712-1/S0002-9947-1963-0143712-1.pdf Golomb/Hales paper: http://library.msri.org/books/Book42/files/golomb.pdf https://www.youtube.com/watch?v=p1YzYLzRwtk http://www.austms.org.au/Gazette/2005/Jul05/mathellaneous.pdf Special Thanks: Benjamin Houston-Edwards and Nathan Kaplan Mathologer Video: https://www.youtube.com/watch?v=aDOP0XynAzA Special thanks to Matthew O'Connor and Yana Chernobilsky who are supporting us on Patreon at the Identity level! And thanks to Mauricio Pacheco and Nicholas Rose who are supporting us on Patreon at the Lemma level!
Views: 98778 PBS Infinite Series
Solving the Wolverine Problem with Graph Coloring | Infinite Series
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi At one time, Wolverine served on four different superhero teams. How did he do it? He may have used graph coloring. Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Graph coloring may seem simple but the mathematics behind it is surprising difficult and it pops up in a number strange places. Kelsey discusses Sudoku, the Four Color Theorem, the Hadwiger Nelson Problem and how graph coloring can be used to schedule the most effective way to save the planet. Find out how math can defeat the combined might of Thanos, Magneto, Kang, Dormammu, Ultron, Apocalypse and Dr. Doom. Correction: At 3:58, "Four is the maximum number of required colors" Previous Episode - What is a Random Walk? https://www.youtube.com/watch?v=stgYW6M5o4k Links to other resources: Sudoku: http://www.ams.org/notices/200706/tx070600708p.pdf General Applications: http://web.math.princeton.edu/math_alive/5/Notes2.pdf Page on graph colorings: https://webdocs.cs.ualberta.ca/~joe/Coloring/index.html Book on general graph theory: http://diestel-graph-theory.com/ The Four Color Theorem - Numberphile: https://www.youtube.com/watch?v=NgbK43jB4rQ Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Made by Kornhaber Brown (www.kornhaberbrown.com) Comments answered by Kelsey: Ofir David https://www.youtube.com/watch?v=stgYW6M5o4k&lc=z12vin2o2vn0dxvn522wsr5j0wexezd0j Bertie Blue https://www.youtube.com/watch?v=stgYW6M5o4k&lc=z22xhfxbgx3qsh2ujacdp4333fssxeq5w1z4avpprddw03c010c ​TehAvenger29 https://www.youtube.com/watch?v=stgYW6M5o4k&lc=z12qtxqgqpyftrzmy22wyxl5gy3ssvcpf04​
Views: 75597 PBS Infinite Series
The city of Zug, a Bitcoin pioneer
 
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The city of Zug will be the first public authority in the world to accept the cryptocurrency Bitcoin. This pilot project, set to begin on July 1, 2016, will allow people to use the virtual currency to pay for services at the residents’ registration office for sums of up to CHF200. However, Bitcoin has been subjected to major fluctuations and critics fear that the city stands to lose money through the project. (SRF, swissinfo.ch) --- swissinfo.ch is the international branch of the Swiss Broadcasting Corporation (SBC). Its role is to report on Switzerland and to provide a Swiss perspective on international events. For more articles, interviews and videos visit swissinfo.ch or subscribe to our YouTube channel: Website: http://www.swissinfo.ch Channel: http://www.youtube.com/swissinfovideos Subscribe: http://www.youtube.com/subscription_center?add_user=swissinfovideos
Nonce Signing | CodefestCTF 2018: "Ghost Protocol"
 
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Hang with our community on Discord! https://discord.gg/Kgtnfw4 If you would like to support me, please like, comment & subscribe, and check me out on Patreon: https://patreon.com/johnhammond010 PayPal: http://paypal.me/johnhammond010 Site: http://www.johnhammond.org Twitter: https://twitter.com/_johnhammond
Views: 712 John Hammond
Symmetric Key Ciphers
 
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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: 17515 nptelhrd
Stream Ciphers
 
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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: 6923 nptelhrd
Security Analysis of Multilinear Maps over the Integers
 
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Security Analysis of Multilinear Maps over the Integers by Jae Hong Seo, Hyung Tae Lee. Talk at Crypto 2014.
Views: 205 TheIACR
Parallel White Noise Generation on a GPU via Cryptographic Hash
 
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This is a technique that generates uniform random numbers in a totally parallel and random-accessible fashion. The basic idea is very simple: given an input that can be trivially produced in parallel (e.g. a linear ramp), use cryptographic hash to scramble the individual samples independently and in parallel, and the output set will exhibit white noise statistics. For more details, see our I3D 2008 paper at http://research.microsoft.com/apps/pubs/default.aspx?id=70502
Views: 586 Li-Yi Wei