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cryptography - Perfect Secrecy Part II
 
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Cryptography To get certificate subscribe: https://www.coursera.org/learn/cryptography ======================== Playlist URL: https://www.youtube.com/playlist?list=PL2jykFOD1AWb07OLBdFI2QIHvPo3aTTeu ============================ Youtube channel: https://www.youtube.com/user/intrigano ============================ https://scsa.ge/en/online-courses/ https://www.facebook.com/cyberassociation/
Views: 1596 intrigano
cryptography - CPA Secure Encryption from PRFs Block Ciphers
 
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Cryptography To get certificate subscribe: https://www.coursera.org/learn/cryptography ======================== Playlist URL: https://www.youtube.com/playlist?list=PL2jykFOD1AWb07OLBdFI2QIHvPo3aTTeu ============================ Youtube channel: https://www.youtube.com/user/intrigano ============================ https://scsa.ge/en/online-courses/ https://www.facebook.com/cyberassociation/
Views: 987 intrigano
Light-cone lattice, quantum affine algebras, and the modular double | Joerg Teschner | EIMI
 
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Light-cone lattice, quantum affine algebras, and the modular double | Курс: Mathematical Physics: Past, Present and Future | Лектор: Joerg Teschner | Организатор: -еждународный математический институт им. Л. Эйлера Смотрите это видео на Лекториуме: https://lektorium.tv/lecture/23193 Подписывайтесь на канал: https://www.lektorium.tv/ZJA Следите за новостями: https://vk.com/openlektorium https://www.facebook.com/openlektorium
Views: 364 Лекториум
Cryptanalysis of Classical 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: 12629 nptelhrd
Affine Cipher Encryption Phase - Part 2
 
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This short video consider the Affine Cryptographic Cipher and more importantly the Encryption Phase associated with this cipher.
Views: 844 Maths And Stats
2010 AIME I Problem 2 (Modular Arithmetic, Remainder)
 
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We examine the given expression in modulo 1000. Your support is truly a huge encouragement. Please take a second to subscribe in order to send us your valuable support and receive notifications for new videos! Every subscriber and like are immensely appreciated.
Views: 1021 LetsSolveMathProblems
Cool with a Gaussian: an O∗(n3)O∗(n3) volume algorithm - Santosh Vempala
 
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Santosh Vempala Georgia Institute of Technology October 13, 2014 Computing the volume of a convex body in n-dimensional space is an ancient, basic and difficult problem (#P-hard for explicit polytopes and exponential lower bounds for deterministic algorithms in the oracle model). We present a new algorithm, whose complexity grows as n3n3 for any well-rounded convex body (any body can be rounded by an affine transformation). This improves the previous best Lo-Ve algorithm from 2003 by a factor of nn, and bypasses the famous KLS hyperplane conjecture, which appeared essential to achieving such complexity. En route, we'll review the progress made in the quarter-century since Dyer, Frieze and Kannan's breakthrough n23n23 algorithm, and highlight some nice connections to probability and geometry. More videos on http://video.ias.edu
Encodage de l'information 2 : Compression
 
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Voici la suite de la vidéo sur les représentations binaires (https://www.youtube.com/watch?v=y2e7RuFd5gU&t=253s), je présente ici la compression de données. Contenu : - Arbre d'encodage et dictionnaire d'encodage - Compression sans pertes - Algorithme de Huffman - Introduction à la compression avec pertes (plus de détails ici : https://www.youtube.com/watch?v=a3bu2U74agw&t=16s)
Views: 1873 L'informateur
La Magie des Maths de Prépa (1/2) - L'algèbre
 
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Dans cette série, je propose de vous révéler la magie des mathématiques des classes préparatoires aux Grandes Écoles. Ce premier épisode porte sur l'algèbre. Voici le second : https://www.youtube.com/watch?v=DRciHKXWneA. Visiter la chaîne francophone de Science4All :https://www.youtube.com/channel/UC0NCbj8CxzeCGIF6sODJ-7A Chapitre 1 - Al-Jabr (1:13) Chapitre 2 - La géométrie algébrique (12:11) Chapitre 3 - La théorie des nombres (17:51) Chapitre 4 - L'algèbre moderne (29:04) Chapitre 5 - L'algèbre linéaire (40:51) Aidez-moi à m'améliorer en remplissant le questionnaire suivant : https://docs.google.com/forms/d/1asI9wJ1jrnMWjpWaO29XvORSIK-ZQD0G_Ivt5m-It5M/viewform?usp=send_form https://docs.google.com/forms/d/1asI9wJ1jrnMWjpWaO29XvORSIK-ZQD0G_Ivt5m-It5M/viewanalytics Pour en savoir plus, allez-voir ces liens ! La magie de l'algèbre : http://www.science4all.org/le-nguyen-hoang/algebra/ Ellipses, paraboles et hyperboles : http://www.science4all.org/le-nguyen-hoang/ellipses-parabolas-hyperbolas/ Cryptographie et théorie des nombres : http://www.science4all.org/scottmckinney/cryptography-and-number-theory/ Cryptographie et physique quantique : http://www.science4all.org/scottmckinney/cryptography-and-quantum-physics/ P versus NP : http://www.science4all.org/le-nguyen-hoang/pnp/ Théorie de Galois : http://www.science4all.org/le-nguyen-hoang/galois-theory/ Relativité restreinte : http://www.science4all.org/le-nguyen-hoang/spacetime-of-special-relativity/ Relativité générale : http://www.science4all.org/le-nguyen-hoang/spacetime-of-general-relativity/ Algèbre linéaire : http://www.science4all.org/le-nguyen-hoang/linear-algebra/ Programmation linéaire : http://www.science4all.org/le-nguyen-hoang/linear-programming/ Physique quantique : http://www.science4all.org/le-nguyen-hoang/quantum-mechanics/ Merci à toutes les participantes concernées de près ou de loin par ce projet ! Musiques : Jason Shaw (http://www.audionautix.com/index.php) J. Lang, Snowflake, Admiral Bob, Onlymeith, Colab (http://dig.ccmixter.org) Chris Zabriskie, Kevin MacLeod (http://freemusicarchive.org)
Views: 145577 Science4All (english)
The Caesar cipher | Journey into cryptography | Computer Science | Khan Academy
 
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Brit explains the Caesar cipher, the first popular substitution cipher, and shows how it was broken with "frequency analysis" Watch the next lesson: https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/polyalphabetic-cipher?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Missed the previous lesson? https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/intro-to-cryptography?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: 589188 Khan Academy
Supercharged Science: Date Shift Cipher
 
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Supercharged Science: Date Shift Cipher
Views: 3237 Aurora Lipper
The Secret step-by-step Guide to learn Hacking
 
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totally clickbait. but also not clickbait. I don't know where to start hacking, there is no guide to learn this stuff. But I hope you still have a plan now! How to learn hacking - https://www.youtube.com/watch?v=iKXd9zW1OuI The ultimate guide, everything you need to know - https://google.com Stuff that looks cool: crypto challenges - https://cryptopals.com/ wargames - https://overthewire.org other exploit challenges - http://pwnable.kr/ basics of exploitation (+ my playlists) - https://exploit-exercises.com/protostar/ math puzzles with programming - https://projecteuler.net break ethereum smart contracts - https://ethernaut.zeppelin.solutions/ Try something new: create an android app - https://developer.android.com/training/basics/firstapp/index.html create a website with python - http://flask.pocoo.org/ do some nice animations - https://processing.org/tutorials/ make some LEDs blink - https://www.arduino.cc/en/Guide/HomePage Other Channels: GynvaelEN - https://www.youtube.com/channel/UCCkVMojdBWS-JtH7TliWkVg MurmusCTF - https://www.youtube.com/channel/UCUB9vOGEUpw7IKJRoR4PK-A MalwareAnalysisForHedgehogs - https://www.youtube.com/channel/UCVFXrUwuWxNlm6UNZtBLJ-A hasherezade - https://www.youtube.com/channel/UCNWVswPNgn5kutPNa5sprkg Colin Hardy - https://www.youtube.com/channel/UCND1KVdVt8A580SjdaS4cZg -------------------------------------- Twitter: https://twitter.com/LiveOverflow Website: http://liveoverflow.com/ Subreddit: https://www.reddit.com/r/LiveOverflow/ Facebook: https://www.facebook.com/LiveOverflow/
Views: 394607 LiveOverflow
Vigenere Cipher 2
 
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Use the Vigenėre cipher with the key word FIND to decrypt the message N SARB QG ZMMA L XMR LY.
Views: 28924 MathAfterMath
Letter Frequency of Ciphers
 
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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: 5886 Udacity
Linear 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: 16804 nptelhrd
Secure Multiparty Computation - Tal Rabin Technion lecture - Part 1
 
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Secure Multiparty Computation - Tal Rabin of IBM Technion-Israel Institute of Technology lecture at Technion Computer Engineering 2014 summer school. Since it's introduction in 1982, the area of two and multi-party computation has been an exciting and vibrant research topic. The theoretical research in and the applications of multi-party computations are a source of beautiful results and great importance in the era of the internet and cloud computing. Solutions from this area provide enhanced security and privacy in our connected world. In this talk we will give a flavor of the techniques and discuss various applications introduced in the 30 years of innovation in the field.
Views: 4412 Technion
Perfect Cipher Is Impractical 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: 2018 Udacity
Short Key Cryptography
 
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Ciphertexts produced by any short key ciphers do commit to the single plaintext that generated them. No equivocation. This commitment is the basis for brute-force cryptanalysis, and also the basis for probability-modified, much more efficient, cryptanalysis. It condemns today's master ciphers (e.g. AES) to sustain ongoing erosion of their efficacy.
Views: 499 Gideon Samid
Explicit Constructions of Two-Source Extractors and Ramsey Graphs
 
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Eshan Chattopadhyay, Institute for Advanced Study https://simons.berkeley.edu/talks/eshan-chattopadhyay-01-30-2017 Expanders and Extractors
Views: 851 Simons Institute
Otp Is A Perfect Cipher Pt 1 - 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: 4563 Udacity
Kryptographie (7): Binäre Zahlen und XOR Operation
 
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Views: 552 Franneck
Claude Crépeau Lecture 2
 
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Professor Claude Crépeau of McGill University presents the second lecture reviewing cryptography systems, code based and multi-variate polynomials based cryptography and cryptographic money based on hidden codes. This lecture was part of a series of four lectures during Spring 2013. Find out more about IQC! Website - https://uwaterloo.ca/institute-for-quantum-computing/ Facebook - https://www.facebook.com/QuantumIQC Twitter - https://twitter.com/QuantumIQC
Secret Sharing Schemes
 
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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: 12141 nptelhrd
Few other Cryptanalytic Techniques
 
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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: 4461 nptelhrd
Elliptic Curves: Facts, Conjectures and Applications
 
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Elliptic curves E can be given by plane projective cubic curves and so seem to be very simple objects. A first hint for more structure is that there is an algebraic addition law for the rational points. In fact, there is a natural isomorphism of E with its Jacobian variety, and so E is at the same time a curve of low degree and an abelian variety of smallest possible dimension. This is the reason for a very rich and deep theory behind making elliptic curves to ideal objects for both theoretical and experimental investigations, always with a strong algorithmic aspect. As outcome we find an abundance of key conjectures of arithmetic geometry inspired (and even proven) by elliptic curves. It will be the purpose of the talk to explain some of these conjectures and results and, as important and rather astonishing side effect, state why these properties of elliptic curves make them to a most efficient and secure tool for public key crypto systems based on discrete logarithms.
Views: 373 Microsoft Research
ABC math info
 
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Région Massa
Views: 307 azur izral
Live match Algérie × Sénégal CAN 2017 بث مباشر مباره الجزائر×السنغال
 
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Nouveau serveur pour regarder sans scènes de coupe réelle Sans une vitesse de coupe finale et vulnérables Maeshr diffusion du match entre le Sénégal et l'Algérie dans la Coupe d'Afrique des Nations Regarder en direct sans couper Jeu Altercation https://goo.gl/IDJRvb lien سيرفير جديد للمشاهده بدون تقطيع لمشاهد حقيقيه بدون تقطيع نهائيا وللسرعات الضعيفه بث مياشر لمباراة السنغال والجزائر في كاس الامم الافريقيه مشاهدة مباشره بدون تقطيع رابط مشاده المباراة https://goo.gl/IDJRvb
Views: 1589 XMAN PRO
Block Ciphers - Focus on the Linear Layer (feat. PRIDE)
 
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Block Ciphers - Focus on the Linear Layer (feat. PRIDE) by Gregor Leander, Christof Paar, Martin R. Albrecht, Elif Bilge Kavun, Tolga Yalçin, Benedikt Driessen. Talk at Crypto 2014.
Views: 349 TheIACR
Hugo Krawczyk: Probabilistic Searchable Symmetric Encryption
 
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“ Probabilistic Searchable Symmetric Encryption", a lecture given by Mor Weiss, from Technion Institute of Technology,, during the Department of Computer Studies' Winter School, held by Bar-Ilan University in January 2016. For the full event playlist: https://www.youtube.com/playlist?list=PLXF_IJaFk-9ADeshgHXrSfuwPyEMa5qS7 Bar-Ilan University: http://www1.biu.ac.il/en Department of Computer Science: http://cs.biu.ac.il//en
Views: 488 barilanuniversity
Otp Is A Perfect Cipher Pt 3 - 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: 2287 Udacity
Sherlock Holmes - The Adventure Of The Baconian Cipher (May 27, 1946)
 
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Sherlock Holmes was an old-time radio show which aired in the USA from October 2, 1939 to July 7, 1947. Most episodes were written by the team of Dennis Green and Anthony Boucher. Originally, the show starred Basil Rathbone as Sherlock Holmes and Nigel Bruce as Doctor Watson. Together, they starred in 220 episodes which aired weekly on Mondays from 8:30 to 9:00pm. Bromo Quinine sponsored some of the earlier programs on the NBC Blue Network and for a period Parker Pen was the sponsor. The show first aired on the Blue Network but later moved to the Mutual Broadcasting System. It was originally broadcast from Hollywood. During World War II, the show was also broadcast overseas through the Armed Forces Radio Service. It is unknown exactly how many of the original 220 shows have survived, 53 are currently known to be in circulation. Basil Rathbone's last episode as the famous Detective was "The Singular Affair of the Baconian Cipher." He was eager to separate himself from the show to avoid being typecast as Sherlock Holmes, and even though the show's sponsor Petri Wine offered him generous pay to continue, he decided to move on. Once he did, the sponsor did as well, and Tom Conway took the starring role, though Nigel Bruce got top billing and was always announced first. The new sponsor was Kreml Hair Tonic for Men, and the new series lasted only 39 episodes. Bruce and Conway then left the series. From then until 1950 the series continued as "Sherlock Holmes" with various actors playing the two principle parts. With Rathbone and Bruce, the show exhibited an interesting introduction. The sponsor's spokesman, usually Knox Manning or Harry Bartell, or, during the show's initial season and again in the final season, Joseph Bell, would show up weekly at Dr. Watson's house (then retired and living in California), and share a story about Holmes and his adventures over a glass of Petri wine. This offered them the chance to sometimes bring in other characters to contribute to the story, and also gave Watson a chance to summarize or add additional titbits at the end. Another interesting thing about this radio show's introductions was Dr. Watson's anecdotes and comments about his dogs usually referred to as the "Puppies." --------------------------------------------------------------------------------
Views: 2026 A Room With A View
Local Correctability of Expander Codes - Brett Hemenway
 
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Brett Hemenway University of Pennsylvania April 14, 2014 An error-correcting code is called locally decodable if there exists a decoding algorithm that can recover any symbol of the message with high probability by reading only a small number of symbols of the corrupted codeword. There is a fundamental tradeoff in locally decodable codes between the rate (the ratio of message length to codeword length) and the locality (the number of symbols read by the decoder). Ideally, one strives for high rate and low locality. Constructions of locally decodable codes can be divided into two categories, low-rate, low-locality and high-rate, high-locality. The Matching Vector codes of Yekhanin and Efremenko have locality 3, but their rate goes to zero super-polynomially. The Multiplicity Codes of Kopparty, Saraf and Yekhanin and the Affine Invariant Codes of Guo, Kopparty and Sudan have high rate (approaching one) and locality nϵnϵ. In this work we provide a local-decoding algorithm for the expander codes of Sipser and Spielman. When appropriately instantiated, this leads to a novel construction of locally decodable codes with rate approaching one and locality nϵnϵ. This work appeared in ICALP '13 and is joint work with Rafail Ostrovsky and Mary Wootters. http://arxiv.org/abs/1304.8129 For more videos, visit http://video.ias.edu
Classical Cryptosystems
 
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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: 14162 nptelhrd
Cryptographic Problems in Algebraic Geometry Lecture
 
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AGNES is a series of weekend workshops in algebraic geometry. One of our goals is to introduce graduate students to a broad spectrum of current research in algebraic geometry. AGNES is held twice a year at participating universities in the Northeast. Lecture presented by Kristin Lauter.
Views: 1547 Brown University
[WHIBOX 2016] Practical white-box topics: design and attacks II - Marc Witteman
 
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The second practical white-box talk will address techniques to speed up analysis, or offer an alternative approach to attack implementations that have basic protection against DCA. - Data pre-processing Due to size of the memory to observe, and obfuscated bloated code, an attacker often needs to collect huge amounts of samples during a single crypto execution. We discuss how this data can be compressed to reduce computational complexity, and which analysis techniques are then used to identify the relevant part of the leaked data. - Differential Fault Analysis Another way to attack a crypto implementation is to inject faults in intermediate data, and use mathematical analysis to derive the key from corrupted outputs. This technique requires additional reverse engineering of the WBC implementation as the faults must be injected at a specific moment of execution. But this can be more efficient than DCA in case the implementation is protected by countermeasures.
Views: 116 ECRYPT
Discrete Maths for Computer Science - 4.1.3.1 - Modular Arithmetic
 
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Discrete Maths for Computer Science PLAYLIST: https://tinyurl.com/DiscMathsCompScience Unit 4: Number Theory and Cryptography Part 1: Modular Arithmetic Section 3: Modular Arithmetic Lesson 1 - Modular Arithmetic NOTES: https://tinyurl.com/DiscMathsCompScienceNotes
Views: 16 Bob Trenwith
Xin Li - Almost Optimal Non-malleable Extractors and Privacy Amplification Protocols
 
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Xin Li of Johns Hopkins University presents his talk "Almost Optimal Non-malleable Extractors and Privacy Amplification Protocols" at the DIMACS Workshop on Cryptography and its Interactions: Learning Theory, Coding Theory, and Data Structures. http://dimacs.rutgers.edu/Workshops/Interactions/program.html The workshop on was held from Monday, July 11, 2016 Wednesday, July 13, 2016 at the Computing Research & Education Building on Busch Campus of Rutgers University. For more information visit http://dimacs.rutgers.edu
Views: 138 Rutgers University
Learning Online
 
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How to watch educational videos in flipped classrooms.
Views: 7703 Jeff Suzuki
Beale ciphers
 
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The Beale ciphers, also referred to as the Beale Papers, are a set of three ciphertexts, one of which allegedly states the location of a buried treasure of gold, silver and jewels estimated to be worth over USD$63 million as of September 2011. Comprising three ciphertexts, the first text describes the location, the second ciphertext the content of the treasure, and the third lists the names of the treasure's owners and their next of kin. The story of the three ciphertexts originates from an 1885 pamphlet detailing treasure being buried by a man named Thomas J. Beale in a secret location in Bedford County, Virginia, in the 1820s. Beale entrusted a box containing the encrypted messages to a local innkeeper named Robert Morriss and then disappeared, never to be seen again. According to the story, the innkeeper opened the box 23 years later, and then decades after that gave the three encrypted ciphertexts to a friend before he died. The friend then spent the next twenty years of his life trying to decode the messages, and was able to solve only one of them which gave details of the treasure buried and the general location of the treasure. The unnamed friend then published all three ciphertexts in a pamphlet which was advertised for sale in the 1880s. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 764 Audiopedia
The Foundations of Mathematics
 
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Topic 3 of "Brief Introduction to the Foundations of Mathematics" lecture. ----------------------------------- In this video we will talk very briefly about the evolution of The Foundations of Mathematics. We will also stress the fact that the foundations, in themselves, have become a field of research within the science of Mathematics. Finally, we'll present a proposed division for the science of Mathematics. ----------------------------------- Visit http:\\www.MathVideoLectures.com, where you'll find much more related to Mathematics. ----------------------------------- We frequently add new math videos, so we recommend you to subscribe to our channel to stay aware of new presentations. ----------------------------------- Your "likes and shares" are truly appreciated and keep us motivated to produce and upload new high quality Math videos. Thank you so very much for your support! -----------------------------------

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