Search results “Lattices and their application in cryptography puzzles”
Quantum Cryptography Explained
This episode is brought to you by Squarespace: http://www.squarespace.com/physicsgirl With recent high-profile security decryption cases, encryption is more important than ever. Much of your browser usage and your smartphone data is encrypted. But what does that process actually entail? And when computers get smarter and faster due to advances in quantum physics, how will encryption keep up? http://physicsgirl.org/ ‪http://twitter.com/thephysicsgirl ‪http://facebook.com/thephysicsgirl ‪http://instagram.com/thephysicsgirl http://physicsgirl.org/ Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator/Editor: Dianna Cowern Writer: Sophia Chen Animator: Kyle Norby Special thanks to Nathan Lysne Source: http://gva.noekeon.org/QCandSKD/QCand... http://physicsworld.com/cws/article/n... https://epic.org/crypto/export_contro... http://fas.org/irp/offdocs/eo_crypt_9... Music: APM and YouTube
Views: 263798 Physics Girl
Cypher Review (cryptography puzzles)
My review of Cypher, a cryptography puzzle game that force you to learn about the methods before you can solve the puzzles. Bring a pencil and lots of paper. Review copy provided free of charge. Buy: http://store.steampowered.com/app/746710/Cypher/?curator_clanid=26701155 Follow me on Twitter: http://twitter.com/peppage This curator thing is awesome! http://store.steampowered.com/curator/26701155/ #indiegame
Lecture 40-Lattices
Discrete Mathematical Structures Lecture by Prof. Kamala Krithivasan, Department of Computer Science and Engineering, IIT Madras
Views: 135872 nptelhrd
The Assassin Puzzle | Infinite Series
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi Imagine you have a square-shaped room, and inside there is an assassin and a target. And suppose that any shot that the assassin takes can ricochet off the walls of the room, just like a ball on a billiard table. Is it possible to position a finite number of security guards inside the square so that they block every possible shot from the assassin to the target? Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Solution to the Assassin Puzzle: www.math3ma.com/mathema/2018/5/17/is-the-square-a-secure-polygon Previous Episode: Instant Insanity Puzzle https://www.youtube.com/watch?v=Lw1pF47N-0Q&t=1s Let’s walk through this puzzle a little more precisely. First, instead of thinking of a physical room with actual people inside, I really want you to think of a square in the xy plane. Pick any two points in the square, and let’s call one of those points A for “assassin,” and the other point T for “target.” Now a “shot” from the assassin is really just a ray emanating out of the point A which can, like a ball on a billiard table, bounce back and forth between the sides of the square. But unlike an actual game of pool, let’s assume the trajectory has constant speed and that it can bounce back and forth for forever! Written and Hosted by Tai-Danae Bradley Produced by Eric Brown Graphics by Matt Rankin 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 and Andrew Poelstra who are supporting us at the Lemma level!
Views: 55604 PBS Infinite Series
Proving Pick's Theorem | Infinite Series
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi What is Pick's Theorem and how can we prove it? Get a free 30-day trial today by signing up at http://www.audible.com/infinite. Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com You could spend hours doing trigonometry to determine the area of a complex shape or you could simply plug in Pick’s Theorem. Previous Episode - 5 Unusual Proofs https://www.youtube.com/watch?v=udxwP26gTwA Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Made by Kornhaber Brown (www.kornhaberbrown.com) Sources and further references: David Eppstein’s Math Fun https://www.ics.uci.edu/~eppstein/recmath.html Proofs from the Book by Martin Aigner and Günter M. Ziegler https://www.amazon.com/Proofs-BOOK-Martin-Aigner/dp/3642008550 Comments answered by Kelsey: J.H. https://www.youtube.com/watch?v=udxwP26gTwA&lc=z13shv4xvnr4zviwe04celqyvmfizt2g5c0 M.K.D https://www.youtube.com/watch?v=udxwP26gTwA&lc=z134ibphinrqy5btm22uftszktvguzty404 SleepyGuyy https://www.youtube.com/watch?v=udxwP26gTwA&lc=z134vlmb5smhyvljg04cfhqqiuemejkx1gw
Views: 78924 PBS Infinite Series
Functional Encryption for Regular Languages
Talk at crypto 2012. Author: Brent Waters. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=24299
Views: 1082 TheIACR
Mathematical Cryptography
Mathematical Cryptography
Views: 74 Aizhan Akhmetbek
ASM View of Abstract Cryptography
The computational model of cryptography views agents as PPT algorithms operating on strings. In the abstract model, agents are working on syntactic representations of messages, using a fixed set of rules for composing and analyzing such representations. By the Abstract State Machine thesis of Gurevich, an agent in the abstract model is an algorithm, simulatable by an appropriate ASM. But what are the appropriate algorithms for such agents? What are their states? What kind of algorithms are they: simple (isolated, sequential, small-step), interactive (between and within a step), parallel (wide-step, with interacting components), distributed? It turns out that a surprisingly simple model is faithful with respect to the computational model. The basic PPT computational notions, of indistinguishability and unforgeability, are given sharp abstract counterparts, allowing porting of typical proofs between the two abstraction levels, both ways. As a proof of the practical value of the model, a tool demo of a general-purpose software-testing tool developed in MSR, SpecExplorer, finding attacks on abstract cryptographic protocols will be presented.
Views: 94 Microsoft Research
Fine grained Cryptography
Akshay Degwekar and Vinod Vaikuntanathan and Prashant Nalini Vasudevan, Crypto 2016. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=27667
Views: 211 TheIACR
Science Cafe Turku - (Vadim Makarov) - Building Unbreakable Cryptography
For millennia, people relied on cryptographic ciphers based on mathematics. These always get broken from time to time and require replacement, as our computational abilities improve. A new kind of cryptography based on the laws of quantum physics is now being deployed, promising to solve the communication security problem forever. The first speaker of our new series of Science Cafes is the one and only Quantum Hacker: Prof. Vadim Makarov works with quantum cryptography and heads the Quantum hacking lab at the University of Waterloo, Canada, where he and his students try to break implementations of quantum cryptography despite all the claims it is unbreakable (See his webpage: http://www.vad1.com/lab/).
Views: 498 Turku Quantum
Solving the IMPOSSIBLE Lock Puzzle!!
I challenged myself to unlock and solve the world's hardest lock puzzle using only my magicians ingenuity and intuition. DO NO WATCH if you don't want to know the SECRET! Credits to Dan Feldman for making this wonderful puzzle! To get yours, please write to Michal here: [email protected] Check out another Puzzle video here!: https://www.youtube.com/watch?v=7KmsnS7rJMo This particular lock is difficult to solve because it not only requires you to unlock it but to put it back together the way it came... which proved much hard than the first part. Enjoy watching me get frustrated and go a little insane.. Check out some more puzzles here: http://bit.ly/2gcfgMe HELP FUND 1st Playing Cards: http://www.chris-ramsay.com/store/p16/1stplayingcards LEARN A TRICK I CREATED: https://sellfy.com/p/OiqQ/ THE BEST ROYALTY FREE MUSIC FOR YOUTUBERS!!: https://goo.gl/IZraEL CHECK OUT MY GAMING CHANNEL: https://www.youtube.com/channel/UCxR3TcpkooMIllA2b83kGAQ/featured What I shoot with: My Main Camera: http://amzn.to/2l20aJs Main Lens: http://amzn.to/2lzpIeB My Favorite LENS: http://amzn.to/2kQAJZm VLOG CAMERA : http://amzn.to/2kQQwqK The Mic I use: http://amzn.to/2kB3QBn Lighting: http://amzn.to/2m16e3t Editing: Final Cut // Color Finale Follow Me: Instagram: https://www.instagram.com/chrisramsay52 Facebook: https://www.Facebook.com/deceivingisbelieving Twitter: https://www.twitter.com/chrisramsay52 Website: https://www.chris-ramsay.com IF YOU WANT TO SEND ME STUFF: Chris Ramsay CP 50011 BP. Galeries Des Monts St-Sauveur, PQ Canada J0R 1R0
Views: 10029905 Chris Ramsay
Cryptanalysis Careers @ NSA
Learn more about cryptanalysis and other careers at NSA by visiting IntelligenceCareers.gov/NSA.
Views: 3291 NSA Careers
Pseudorandom Knapsacks and the Sample Complexity of LWE Search-to-Decision Reductions
Talk at crypto 2011. Authors: Daniele Micciancio, Petros Mol. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=23590
Views: 245 TheIACR
A cryptography PUZZLE by Vasilis Mpakas.mp4
A nice puzzle regarding a basic principle of cryptography, explained by maths specialist vasilis mpakas
Views: 175 Vasilis Mpakas
Position-Based Quantum Cryptography: Impossibility and Constructions
Talk at crypto 2011. Authors: Serge Fehr, Rafail Ostrovsky, Vipul Goyal, Christian Schaffner, Nishanth Chandran, Ran Gelles, Harry Buhrman. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=23588
Views: 633 TheIACR
Crypto 101
Tech Breakfast – “Encryption” 23rd March, 9am, Soho Screening rooms, London Starting with the fundamentals of cryptography (difference between symmetric & public-key etc), Phil guides us from the encryption techniques used in the Enigma machine (with a genuine, working example) through to HDCP and the other forms of content protection used in our industry: Symmetric vs Public-key crypto Examples – DES, AES/Rijndael etc HDCP, Blueray and the MPAA etc PCoIP – security of KVM extenders
Views: 222 Phil Crawley
Time-Lock Puzzles from Randomized Encodings
Nir Bitansky, Massachusetts Institute of Technology The Mathematics of Modern Cryptography http://simons.berkeley.edu/talks/nir-bitansky-2015-07-08
Views: 462 Simons Institute
Cryptography, From Enigma to Elliptical Curve Cryptography
http://uclouvain.acm-sc.be/ Conférence donné le 15 octobre 2012 par Donald Costello pour l'UCLouvain ACM Student Chapter.
Views: 929 Antoine Cailliau
Decoding the National Cryptologic Museum
The CIA burglar who went rogue: http://j.mp/UpJtCJ Using the Enigma and the Sigaba, world powers encrypted their messages in hopes of catching their opponents by surprise.
Views: 3985 Smithsonian Magazine
What is a Random Walk? | Infinite Series
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi To understand finance, search algorithms and even evolution you need to understand Random Walks. Tell PBS what types of shows you want to see at https://www.surveymonkey.com/r/pbsds2017 25 random participants in the survey will receive PBS t-shirts. Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode - Proving Pick’s Theorem https://www.youtube.com/watch?v=bYW1zOMCQno Markov Chains https://www.youtube.com/watch?v=63HHmjlh794 Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Made by Kornhaber Brown (www.kornhaberbrown.com) Random Walks are used in finance, computer science, psychology, biology and dozens of other scientific fields. They’re one of the most frequently used mathematical processes. So exactly what are Random Walks and how do they work? Comments answered by Kelsey: Petros Adamopoulos https://www.youtube.com/watch?v=bYW1zOMCQno&lc=z12hcf1rayqazhrry04cdtbxknznfdvayto0k Jonathan Castello https://www.youtube.com/watch?v=bYW1zOMCQno&lc=z13lslqjqzzyzbbew22dwlh54zj4tpo0j Niosus https://www.youtube.com/watch?v=bYW1zOMCQno&lc=z13kwrpavz3igj32t230dnl4uun2hppow04
Views: 135136 PBS Infinite Series
Bi-Deniable Public-Key Encryption
Talk at crypto 2011. Authors: Chris Peikert, Brent Waters, Adam O'Neill. See http://www.iacr.org/cryptodb/data/paper.php?pubkey=23594
Views: 814 TheIACR
Candidate Indistinguishability Obfuscation and Functional Encryption for all circuits
In this work, we study indistinguishability obfuscation and functional encryption for general circuits: Indistinguishability obfuscation requires that given any two equivalent circuits C 0 and C 1 of similar size, the obfuscations of C 0 and C 1 should be computationally indistinguishable. In functional encryption, ciphertexts encrypt inputs x and keys are issued for circuits C . Using the key SK C to decrypt a ciphertext CT x =enc (x) , yields the value C(x) but does not reveal anything else about x . Furthermore, no collusion of secret key holders should be able to learn anything more than the union of what they can each learn individually. We give constructions for indistinguishability obfuscation and functional encryption that supports all polynomial-size circuits. We accomplish this goal in three steps: We describe a candidate construction for indistinguishability obfuscation for NC 1 circuits. The security of this construction is based on a new algebraic hardness assumption. The candidate and assumption use a simplified variant of multilinear maps, which we call Multilinear Jigsaw Puzzles. We show how to use indistinguishability obfuscation for NC 1 together with Fully Homomorphic Encryption (with decryption in NC 1 ) to achieve indistinguishability obfuscation for all circuits. Finally, we show how to use indistinguishability obfuscation for circuits, public-key encryption, and non-interactive zero knowledge to achieve functional encryption for all circuits. The functional encryption scheme we construct also enjoys succinct ciphertexts, which enables several other applications. joint work with Sanjam Garg, Craig Gentry, Shai Halevi, Amit Sahai, Brent Waters
Views: 780 Microsoft Research
Fibonacci and the Birds Problem
30 pence for thirty birds, but how many of each type...? Robin Wilson, Gresham Professor of Geometry, goes through this problem of Fibonacci's, from his 1202 book, 'Liber abaci'. This is the seventh part of 'A Millennium of Mathematical Puzzles'. The full lecture is available (in 24 parts) here on YouTube, or it can be downloaded (like all of our lectures) in its complete form from the Gresham College website, in video, audio or text formats: http://www.gresham.ac.uk Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website.
Views: 3671 Gresham College
USENIX Enigma 2018 - Emerging Cryptography
Steve Weis, Software Engineer, Facebook This talk discusses emerging cryptographic technologies including secure enclaves, homomorphic encryption, secure multiparty computation, and functional cryptography. We'll focus on the potential impact to everyday security and privacy. For background, we'll recap trends in cryptographic adoption and how it has affected real world users. We'll cover both positive and negative examples and suggest areas of development most beneficial to the next billion users coming online. We'll then discuss how emerging cryptography may enable new models of computation, while better protecting people's sensitive data. Sign up to find out more about Enigma at https://enigma.usenix.org
How to Create a Magic Square With Negative Numbers : College Math
Subscribe Now: http://www.youtube.com/subscription_center?add_user=Ehow Watch More: http://www.youtube.com/Ehow Magic squares can be created using both negative numbers and fake numbers using the same methodology. Create a magic square with negative numbers with help from a longtime mathematics educator in this free video clip. Expert: Jimmy Chang Filmmaker: Christopher Rokosz Series Description: Topics like number theory will start to come into play as your mathematics career advances towards the college level and beyond. Learn about the ins and outs of college math with help from a longtime mathematics educator in this free video series.
Views: 23177 eHow
Secret Paint Mixing - Applied Cryptography
This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 1200 Udacity
16. Side-Channel Attacks
MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: Nickolai Zeldovich In this lecture, Professor Zeldovich discusses side-channel attacks, specifically timing attacks. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 9721 MIT OpenCourseWare
Cryptology: The Nahavo Code
Enjoy... Or else. -_-
Views: 61 Charlie Cain
Lattice Paths
Sign up for our news letter at http://www.theglobalmathproject.org
Walks in integer lattices Part 1
Date: October 8, 2015 Speaker: Anthony Zaleski, Rutgers University Title: Walks in integer lattices Abstract: Motivated by Feller's discussion of coin tosses, we first introduce Maple procedures to analyze 2D walks whose steps are one unit up or right. Then we generalize to arbitrary steps and higher dimensions. In this realm, an analytic approach is hard or impossible, so our experimental methods will save the day.
What is a Chinese Wall in Investment Banking? 🚧
What is a Chinese Wall? http://www.financial-spread-betting.com/course/technical-analysis.html PLEASE LIKE AND SHARE THIS VIDEO SO WE CAN DO MORE! Guys, sorry had to re-upload this one some hater chose to put a bot on us and barrage the video with dislikes. We have a big bank of financial institution and they run different sections and departments. In one department we have Mergers and Acquisitions meaning they're working for a company to acquire another company doing all the legwork and due diligence stuff. They know Company X is buying Company Y. Company Y is currently trading at $50 but Company X is going to bid $80 per share so the stock price of Company Y is likely to fly when this news becomes public. In another department we have guys from the financial institution working in the Wealth Department whose job is basically to make money... So the guys working in the 'Mergers and Acquisitions' department and the guys working in the 'Wealth Department' work in the same bank but in different departments. If these wealth traders somehow find about the merger taking place (which the other department is working on) they could buy as many stock of Company Y as possible to make themselves and their clients a bit of money... Of course if this takes place it is unethical and illegal because legislation states that there should be a Chinese Wall in-between the two departments. So in finance talk, a Chinese Wall (or a Wall of China) is basically some kind of barrier erected between those who have material non-public information that can move a market and those who don't to prevent conflicts of interest.
Views: 894 UKspreadbetting
Saturday Live Silver Crypto Steam
Chatting everything Silver, Gold, Crypto Currentcy and Politics. Please Help Support This Channel: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=BQNLEJKAFTGVQ Mail: "AOTTP", P.O. Box 602, Pinetop Arizona, 85935 DIGIBYTE Wallet: DJQiJT5eXgtrKCxUUbtcoHU5n2LFyzjCoJ LITECOIN Wallet: LaVj4wpY7TUcQyXe1qj25kruyuiwuj2eeo Ripple: rnT3DVjpsdy8SFrpE6DExCCGkcgKAU6S1S I buy Silver and Gold from: www.jmbullion.com DISCLAIMER: WHILE I SPEAK ABOUT CRYPTO CURRENCIES, TOKENS, PRECIOUS METALS, AND OTHER "MARKETS". I AM NOT A FINANCIAL ADVISER AND I DO NOT CHARGE ANYONE FOR THESE YOUTUBE VIDEOS I PRODUCE EVERY DAY. THESE TYPES OF VIDEOS ARE BASED UPON MY OPINION ONLY. YOU ARE RESPONSIBLE FOR YOUR OWN TRADING AND INVESTMENT ACTIVITIES.
2011 Killian Lecture: Ronald L. Rivest, "The Growth of Cryptography"
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)
Cryptographic Devices Provide Clues to History, Politics
Duke University research scholar Nicholas Gessler has created a collection of cryptographic devices used by intelligence officers from the seventeenth century up through World War II. He says studying the devices offers clues about historical events, technological trends and social relations. Read more here: http://today.duke.edu/2014/03/gessler.
Views: 1786 Duke University
Obfuscation for Evasive Functions
Eleventh IACR Theory of Cryptography Conference TCC 2014 February 24-26, 2014 Boaz Barak and Nir Bitansky and Ran Canetti and Yael Tauman Kalai and Omer Paneth and Amit Sahai
Views: 442 Calit2ube
Tasuku Soma: Maximizing Monotone Submodular Functions over the Integer Lattice
Maximizing monotone submodular function under a certain constraint has been intensively studied in the last decade and it is now recognized as a powerful framework for various machine learning problems. In this talk, we consider generalized monotone submodular function maximization over the integer lattice and present polynomial time approximation algorithms for various constraints. We also discuss its applications on machine learning tasks. The lecture was held within the framework of the Hausdorff Trimester Program: Combinatorial Optimization.
Some History of Latin Squares in Experiments - Professor R. A. Bailey
Professor Rosemary A. Bailey takes the audience through the hsitory of the latin square :http://www.gresham.ac.uk/lectures-and-events/some-history-of-latin-squares-in-experiments Professor Rosemary A. Bailey takes the audience through the hsitory of the latin square and how it can be used in experiments. A fascinating and powerful tool of Combinatorics, the Latin Square has fascinated Mathematicians as great as Euler and Fisher, this lecture will explore more uses and methods involved. The transcript and downloadable versions of the lecture are available from the Gresham College Website: http://www.gresham.ac.uk/lectures-and-events/some-history-of-latin-squares-in-experiments Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 1,500 lectures free to access or download from the website. Website: http://www.gresham.ac.uk Twitter: http://twitter.com/GreshamCollege Facebook: https://www.facebook.com/greshamcollege
Views: 2919 Gresham College
Crypto 2011 introductory remarks
Introductory remarks at Crypto 2011. Tom Shrimpton, General Chair. University of California Santa Barbara, August 15, 2011.
Views: 94 TheIACR
Quantum Position Verification in the Random Oracle Model
Quantum Position Verification in the Random Oracle Model by Dominique Unruh. Talk at Crypto 2014.
Views: 236 TheIACR
Output-Compressing Randomized Encodings and Applications
Huijia Lin, UC Santa Barbara The Mathematics of Modern Cryptography http://simons.berkeley.edu/talks/rachel-lin-2015-07-08
Views: 342 Simons Institute
HackTheBox - Brainfuck - Crack RSA Manual Way
Crack RSA Manual Way from sage debug output to python script Telegram: https://t.me/rev3rsesecurity
Views: 85 rev3rse security
Concept Lattice 4 Object Oriented Class-Level
Concept Lattice for Object Oriented Class-Level
Views: 193 Hasan Foura
Magic Square 13 x 13 by 8 year old smartest kid Joshua Thomas Macalintal Soliman of Little Big Shots
April 16, 2018 ---------------------- In 2017, then 7 year old Joshua Thomas Macalintal Soliman guested on Little Big Shots Philippines twice, on September 2, 2017 & on December 31, 2017 (Christmas 🎄 Special Year Ender). 😱🙌💖 In the Sept. 2, 2017 episode, Josh did a 4 by 4 MAGIC SQUARE , CUBE ROOTS of HUNDREDS of THOUSANDS, calculation of the DAY of any DATE in the GREGORIAN CALENDAR .🤗😘😍In the Christmas Year Ender, he did SQUARING, CUBING of numbers & FIFTH ROOTS and calculation of the DAY of any DATE in the GREGORIAN CALENDAR. 💝💗💘Now, JT has learnt how to do magic squares even up to 99 by 99 .But due to the considerable time & space to do such magic squares, we just settled for 13 by 13 magic square. 😀😃😊 #childprodigy #genius #mathwizard #smartestkid #magicsquare #mathemagics #mathematics #littlebigshotsph #LBSSuperkids #giftedchild
Post-Quantum Zero-Knowledge and Signatures from Symmetric-Key
We propose a new class of post-quantum digital signature schemes that: (a) derive their security entirely from the security of symmetric-key primitives, believed to be quantum-secure, and (b) have extremely small keypairs, and, (c) are highly parametrizable. In our signature constructions, the public key is an image y=f(x) of a one-way function f and secret key x. A signature is a non-interactive zero-knowledge proof of x, that incorporates a message to be signed. For this proof, we leverage recent progress of Giacomelli et al. (USENIX'16) in constructing an efficient sigma protocol for statements over general circuits. We improve this sigma protocol to reduce proof sizes by a factor of two, at no additional computational cost. While this is of independent interest as it yields more compact proofs for any circuit, it also decreases our signature sizes. We consider two possibilities for making the proof non-interactive, the Fiat-Shamir transform, and Unruh's transform (EUROCRYPT'12,'15,'16). The former has smaller signatures, while the latter has a security analysis in the quantum-accessible random oracle model. By customizing Unruh's transform to our application, the overhead is reduced to 1.6x when compared to the Fiat-Shamir transform, which does not have a rigorous post-quantum security analysis. We implement and benchmark both approaches and explore the possible choice of f, taking advantage of the recent trend to strive for practical symmetric ciphers with a particularly low number of multiplications and end up using LowMC. This is joint work with Melissa Chase, David Derler, Steven Goldfeder, Claudio Orlandi, Christian Rechberger, Daniel Slamanig and Greg Zaverucha.  See more on this video at https://www.microsoft.com/en-us/research/video/post-quantum-zero-knowledge-and-signatures-from-symmetric-key/
Views: 910 Microsoft Research
CuaimaCrypt, a Strong Cryptographic Alternative
CuaimaCrypt is a cypher designed by Julian Bolivar-Galeno in 2007, with improvements suggested by Jonathan Pastran during the development period. Traditional cryptographic algorithms such as AES, RC4, Blowfish, DES, Triple DES, Serpent, Twofish and others, have predetermined fixed structure. CuaimaCrypt has a dynamic structure, due to this the structure is unknown in advance, only the basic layout is defined. Continue reading at bolivartech.com (http://www.valhalanetworks.com/r?i=34) Follow me at my social media Web Page: bolivartech.com (http://www.valhalanetworks.com/r?i=34) Linkedin: /in/jbolivarg Facebook: /bolivartech Twitter: /BolivarTechCom Instagram: /valhalanetworks Google+: /107922648859600978123 Tsu: /valhalanetworks The images are courtesy of they respective owners.
Views: 51 Bolivar Tech
Other units in this course below: Unit 1: http://www.youtube.com/playlist?list=PLF6D042E98ED5C691 Unit 2: http://www.youtube.com/playlist?list=PL6A1005157875332F Unit 3: http://www.youtube.com/playlist?list=PL62AE4EA617CF97D7 Unit 4: http://www.youtube.com/playlist?list=PL886F98D98288A232& Unit 5: http://www.youtube.com/playlist?list=PLBA8DEB5640ECBBDD Unit 6: http://www.youtube.com/playlist?list=PL6B5C5EC17F3404D6 OfficeHours 1: http://www.youtube.com/playlist?list=PLDA5F9F71AFF4B69E OfficeHours 2: http://www.youtube.com/playlist?list=PL779E191C1DC71DE8 OfficeHours 3: http://www.youtube.com/playlist?list=PL9285B282F623CEBA OfficeHours 4: http://www.youtube.com/playlist?list=PLA18ACF0A1BDED29A OfficeHours 5: http://www.youtube.com/playlist?list=PLB147546B8C6BCD04 To gain access to interactive quizzes, homework, programming assignments and a helpful community, join the class at http://www.udacity.com
Views: 544 Udacity
On Virtual Grey Box Obfuscation for General Circuits
On Virtual Grey Box Obfuscation for General Circuits by Ran Canetti, Yael Tauman Kalai, Nir Bitansky, Omer Paneth. Talk at Crypto 2014.
Views: 207 TheIACR
Preview of the Peopoly Moai SLA Resin 3D Printer at Matterhackers
The Peopoly Moai SLA 3d printer boasts quite a lot of great features and abilities at a cost far less than others in the market. From what I can tell, it's able to produce models at a level of details as good as, if not better, than the Form 2. That's crazy. The process of printing and finishing models isn't as refined as the Form 2, however, you aren't paying as much for the printer. Is the trade off worth the cost savings? Moai Fully Assembled: http://3d.pn/moai Moai Kit: http://3d.pn/moaikit Peopoly Resins: http://3d.pn/peopolyresins Maker's Muse: How To Hollow Models for SLA Printing: https://www.youtube.com/watch?v=Rhyf_JttQEY ==== I use MatterHackers for everything 3D printing, and they even help support my channel - you can too by shopping the links below: ++ MH BUILD series filaments: http://3d.pn/mhbuild ++ MH PRO series filaments: http://3d.pn/mhpro ++ 3D Printers & Printer Kits: http://3d.pn/mhprinters ++ Matterhackers Storefront: http://3d.pn/matterhackers ==== Like what we DID? Buy me a coffee! ++ https://www.buymeacoffee.com/3dprintingnerd ++ https://www.ko-fi.com/joeltelling ==== LIke what we DO? Support the channel on Patreon ++ http://3d.pn/patreon ==== Shop affiliates by using the links below! ++ Printed Solid: http://3d.pn/printedsolid ++ Amazon US: http://3d.pn/amazon ++ Amazon Canada: http://3d.pn/amazonca ++ Amazon UK: http://3d.pn/amazonuk ==== Safety Joel and Joelbot Shirts IN STOCK! ++ Safety Joel / Joelbot Shirts: http://3d.pn/shop ++ 3DPN Mug: http://3d.pn/mug ++ 3DPN Logo Shirt: http://3d.pn/shirt ==== Find Me Socially ++ Twitch: http://twitch.tv/joeltelling ++ Twitter: http://twitter.com/joeltelling ++ Facebook: http://facebook.com/3dprintingnerd ++ Instagram: http://instagram.com/joeltelling ==== Donate Crypto Coins to the Channel ++ Bitcoin: 1L4D7HZ198DHfYyfcKim11cPV1pSvkBzQA ++ Ethereum: 0x87a3f850c2Bf20D929303200f53aAb8d8d7E2279 ++ Litecoin: LeMZvR4WUCngynZ4D8h2BDUQdqS1GdBwK2 ==== Want to send me something? attn: 3D Printing Nerd 509 NE 165th st Shoreline, WA 98155 USA Music provided by https://futurevega.sourceaudio.com Royalty Free Music by http://www.audiomicro.com/royalty-free-music
Views: 223700 3D Printing Nerd
Genaille Lucas Rulers or Rods for Multiplication and Division
1891 invention that allowed the user to read off the results of simple multiplication problems directly, with no intermediate mental calculations. This set includes 11 wood laser engraved rods stored in the custom box. Each rod is 11” x ¾” x ¼” thick. In the days before calculators, methods of simplifying calculations were of much interest. In 1617 Napier also published a book describing a method to multiply, divide and extract square roots using a set of bars or rods. These became known as Napier's Bones. (avail on our website) In the late 1800s, Henri Genaille, a French civil engineer, invented an improvement to Napier's Bones that eliminates the need to handle carries from one digit position to the next. The problem was posed by Edouard Lucas and thus the alternate name of Genaille-Lucas Rulers (or Rods) . The process of multiplying any integer of any length by a digit 1-9 is reduced to looking up numbers on the rods. Studying how and why these rods work can provide real insight into the nature of multiplication. The multiplication rods are available at: http://www.creativecrafthouse.com/index.php?main_page=product_info&cPath=95&products_id=1028 the Division Rods are avail at: http://www.creativecrafthouse.com/index.php?main_page=product_info&cPath=95&products_id=1029
Views: 2340 dj51florida

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