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Theory and Practice of Cryptography
 
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Google Tech Talks November, 28 2007 Topics include: Introduction to Modern Cryptography, Using Cryptography in Practice and at Google, Proofs of Security and Security Definitions and A Special Topic in Cryptography This talk is one in a series hosted by Google University: Wednesdays, 11/28/07 - 12/19/07 from 1-2pm Speaker: Steve Weis Steve Weis received his PhD from the Cryptography and Information Security group at MIT, where he was advised by Ron Rivest. He is a member of Google's Applied Security (AppSec) team and is the technical lead for Google's internal cryptographic library, KeyMaster.
Views: 112343 GoogleTechTalks
Will Quantum Computers break encryption?
 
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How do you secure messages over the internet? How do quantum computers break it? How do you fix it? Why don't you watch the video to find out? Why does this description have so many questions? Why are you still reading? What is the meaning of life? Facebook: https://www.facebook.com/frameofessence Twitter: https://twitter.com/frameofessence YouTube: https://www.youtube.com/user/frameofessence CLARIFICATIONS: You don't actually need a quantum computer to do quantum-safe encryption. As briefly mentioned at 7:04 , there are encryption schemes that can be run on regular computers that can't be broken by quantum computers. CORRECTIONS: [2:18] Technically, you can use any key to encrypt or decrypt whatever you want. But there's a specific way to use them that's useful, which is what's shown in the video. [5:36] In RSA, depending on exactly what you mean by "private key", neither key is actually derivable from the other. When they are created, they are generated together from a common base (not just the public key from the private key). But typically, the file that stores the "private key" actually contains a bit more information than just the private key. For example, in PKCS #1 RSA private key format ( https://tools.ietf.org/html/rfc3447#appendix-A.1.2 ), the file technically contains the entire public key too. So in short, you technically can't get the public key from the private key or vice versa, but the file that contains the private key can hold more than just the private key alone, making it possible to retrieve the public key from it. Video links: Encryption and HUGE numbers - Numberphile https://youtu.be/M7kEpw1tn50 The No Cloning Theorem - minutephysics https://youtu.be/owPC60Ue0BE Quantum Entanglement & Spooky Action at a Distance - Veritasium https://youtu.be/ZuvK-od647c Sources: Quantum Computing for Computer Scientists http://books.google.ca/books/about/Quantum_Computing_for_Computer_Scientist.html?id=eTT0FsHA5DAC Random person talking about Quantum MITM attacks http://crypto.stackexchange.com/questions/2719/is-quantum-key-distribution-safe-against-mitm-attacks-too The Ekert Protocol (i.e. E91) http://www.ux1.eiu.edu/~nilic/Nina's-article.pdf Annealing vs. Universal Quantum Computers https://medium.com/quantum-bits/what-s-the-difference-between-quantum-annealing-and-universal-gate-quantum-computers-c5e5099175a1 Images, Documents, and Screenshots: Post-Quantum Cryptography initiatives http://csrc.nist.gov/groups/ST/post-quantum-crypto/cfp-announce-dec2016.html http://pqcrypto.eu.org/docs/initial-recommendations.pdf Internet map (Carna Botnet) http://census2012.sourceforge.net/ Quantum network maps https://www.slideshare.net/ADVAOpticalNetworking/how-to-quantumsecure-optical-networks http://www.secoqc.net/html/press/pressmedia.html IBM Quantum http://research.ibm.com/ibm-q/ Music: YouTube audio library: Blue Skies Incompetech: Jay Jay Pamgaea The House of Leaves Premium Beat: Cutting Edge Technology Second Time Around Swoosh 1 sound effect came from here: http://soundbible.com/682-Swoosh-1.html ...and is under this license: https://creativecommons.org/licenses/sampling+/1.0/
Views: 672001 Frame of Essence
Introduction - 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: 1468 Udacity
Ep. 6 – Introducing a Cryptographic Algorithm & MPC Applications| Ask the Professor
 
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Do you happen to have a crypto algorithm you'd like to introduce? Hint: don't patent it if you want it to actually be used. Prof. Nigel Smart discusses the process of introducing a cryptographic algorithm, what applications MPC (secure multiparty computation) is used for, and gives a clear cut answer to whether we can bioengineer public-key cryptography into human voice. In the 'Ask the Professor' video series, Professor Nigel Smart, a world-renowned expert in applied cryptography, and professor at the COSIC group at the KU Leuven was Vice President of the International Association for Cryptologic Research and a fellow of the IACR. Prof. Smart answers the internet's' most interesting questions about cryptography. Based on questions from popular blogs, forums, and social media—this series is relevant for both beginners and advanced crypto enthusiasts alike. Based on questions from popular blogs, forums, and social media—this series is relevant for both beginners and advanced crypto enthusiasts alike Brought to you by Unbound Tech (https://www.unboundtech.com). Unbound applies revolutionary breakthroughs in mathematics to allow secrets to be used without ever being exposed, thus ensuring digital assets are safe – anytime, anywhere. Reinventing the future of security and privacy, Unbound enables business to deliver a new world of digital products and services with unprecedented speed and scale which were previously beyond reach. At the heart of Unbound, formerly known as Dyadic, lie sophisticated applications of Multi-Party Computation (MPC), developed by Unbound’s co-founders, Professor Yehuda Lindell and Professor Nigel Smart, world-renowned cryptographers.
Views: 290 Unbound Tech
Sending Secrets: Security and Cryptography in a Quantum World
 
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Cris Moore, Professor, Santa Fe Institute April 13, 2011 Caesar shifted each letter three places in the alphabet. Much of modern computer science was born in the effort to break the Nazi Enigma code, and Cold War spies used code books that fit inside a walnut. Nowadays, the cryptography we depend on every day — for instance, to send our credit card information when we buy something on the Web — relies in turn on the mathematics of prime numbers. But in 1994, Peter Shor discovered that a future quantum computer could crack our cryptosystems by breaking large numbers into their prime factors. Cris will start by describing how these cryptosystems work, and how a quantum computer could break them. (Nothing beyond high-school math, he promises!) He'll end by giving a personal view about whether quantum computers can be built — and what kinds of cryptography could remain secure even if and when they are built.
Views: 5324 Santa Fe Institute
Secure Computation 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: 389 Udacity
The Cryptographers’ Panel 2018
 
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Moderator: Zulfikar Ramzan, Chief Technology Officer, RSA Ron Rivest, Institute Professor, MIT Adi Shamir, Professor, Computer Science Department, Weizmann Institute of Science, Israel Whitfield Diffie, Cryptographer and Security Expert, Cryptomathic Paul Kocher, Independent Researcher Moxie Marlinspike, Founder, Signal Despite how sophisticated information security has become, it is still a relatively young discipline. The founders of our field continue to be actively engaged in research and innovation. Join us to hear these luminaries engage in an enlightening discussion on the past, present and future of our industry. https://www.rsaconference.com/events/us18/agenda/sessions/11490-The-Cryptographers%E2%80%99-Panel
Views: 6074 RSA Conference
Blockchain: Distributed Trust - Bart Preneel
 
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The Bitcoin ecosystem had a bumpy start, but driven in part by the demand created by the Silk Road and perhaps the Cyprus crisis, the impact grew quickly: the total value of bitcoins rose to several billion US$ in the first two years (currently it is around US$ 14 billion), hundreds of alternative cryptocurrencies (altcoins) were created and large mining entities were established, mostly in China. The ideas behind Bitcoin have opened up new approaches to cryptocurrencies, but also to distributed consensus, distributed naming, secure timestamping and commitment. One of the aspects that have drawn the most interest is the smart contract (that is, cryptographically enforceable agreements) on top of the Bitcoin ecosystem (or on other systems such as Ethereum). Even if some observers predict that the Bitcoin ecosystem will disappear or become irrelevant, the core ideas have already made a major impact. Unlike any other payment system or cryptocurrency created before, Bitcoin allows for fully decentralized generation of currency and fully decentralized verification of transactions. The core idea is the blockchain, a public ledger that registers all transactions under the form of a hash chain; the blockchain describes the state of the system, that is, it specifies who owns which amount. Transactions themselves are validated based on a scripting language, which creates some flexibility. In a distributed system, a central problem is how to achieve consensus (e.g., how to deal with double-spending transactions). Transactions are broadcast over a low-latency peer-to-peer network that offers some robustness against censoring or sabotage. This approach allows the Bitcoin ecosystem to achieve distributed consensus in a practical way assuming that players are rational (something which is known to be unachievable without additional assumptions such as rationality) albeit at the cost of a major computational effort in terms of mining. While the financial industry is less interested in the anarchistic aspects of the Bitcoin ecosystem (the governance model and the uncontrolled money supply), the distributed consensus idea is very appealing and is believed to have a very high business potential for a large number of financial transactions and interactions. In 2015, about US$ 1 billion was invested in venture capital in the area of blockchain and cryptocurrencies and the Aite Group predicted in 2016 that blockchain market could be worth as much as US$ 400 million in annual business by 2019. The idea of a public ledger for timestamping and registering documents using hash chains is more than 25 years old, as witnessed by the efforts of Surety Technologies in the early 1990 and the ISO standardization in this area in the mid 1990s –- but these earlier approaches did use a central authority to register all transactions. Bitcoin has inspired many actors to revisit those ideas by `taming’ the Bitcoin ecosystem into a private or permissioned ledger, where only a few selected actors have control over new currencies or verification of transactions (to get rid of distributed control) and where access to the ledger can be restricted (to get rid of full transparency). Some of the notable developments in this context are the open source initiative of IBM that is called Hyperledger and Intel's experimental Sawtooth Lake architecture. Professor Bart Preneel of KU Leuven heads the imec-COSIC (COmputer Security and Industrial Cryptography) research group. His main research areas are information security and privacy with a focus on cryptographic algorithms and protocols and efficient and secure implementations. He undertakes industrial consulting for major players in the finance, telco and hardware industry and has co-designed the Belgian eID and e-voting scheme. He is active in international standardization . Professor Preneel has served as Director, (1997-present), Vice President (2002-2007) and President (2008-2013) of the International Association for Cryptologic Research (IACR) and is co-founder and chairman of LSEC vzw (Leuven Security Excellence Consortium). He is a fellow of the IACR, a member of the Permanent Stakeholders group of ENISA (European Network and Information Security Agency) and of the Academia Europaea. He has testified for the European and Belgian parliament. He has been invited speaker at more than 150 conferences and schools in 40 countries. In 2014 he received the RSA Award for Excellence in the Field of Mathematics.
Views: 2237 secappdev.org
The Enigma encryption machine | Journey into cryptography | Computer Science | Khan Academy
 
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WW2 Encryption is explored with a focus on the Enigma. Read more here. Watch the next lesson: https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/perfect-secrecy?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Missed the previous lesson? https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/frequency-stability?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: 189894 Khan Academy Labs
🔴TORRENTS - DO ENCRYPTION SETTINGS MAKE A DIFFERENCE ? 2019
 
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What are torrents ? what happens if you download torrents, are torrents legal? Do you need a VPN for torrents? What do the encryption settings mean in your torrent client? #torrent #kodi #streaming 🌐Looking for a VPN to stay safe online? A VPN protects your privacy online, secures your Internet connection and restores your freedom. Without a VPN for Kodi, your ISP can and will see all of your internet activity and traffic. This can cause the internet provider to throttle your internet connection and that will impact the performance of streaming using Kodi. You can set up a VPN on most of the Kodi Devices you currently use including Android, iOS, OSX, Windows and even directly to your wireless router. You can use the VPN router setup to cover your home so you don't have to worry about using Kodi on Amazon Fire TV Stick and Fire TV ! ▶️VPN recommendation from me - http://bit.ly/tdukvpna ▶️VPN recommendation from me - http://bit.ly/tdukvpnb (Both with 30-day 100% money back guarantee) 💰Amazing Tech discounts: https://goo.gl/FT3k9R Biggest Tech Discounts at Amazon: ✅USA http://amzn.to/2zMXqHh ✅UK http://amzn.to/2oqEPLM 🤝 Subscribe for more https://goo.gl/A8KH33 .. its free! 👍Thanks for watching and please like if it helped. THANKS! 📌Website for APKs / TIPS - https://www.techdoctoruk.com/
Views: 5575 TechDoctorUK
How Bitcoin Works Under the Hood
 
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A somewhat technical explanation of how Bitcoin works. Want more? Check out my new in-depth course on the latest in Bitcoin, Blockchain, and a survey of the most exciting projects coming out (Ethereum, etc): https://app.pluralsight.com/library/courses/bitcoin-decentralized-technology Lots of demos on how to buy, send, store (hardware, paper wallet). how to use javascript to send bitcoin. How to create Ethereum Smart Contract, much more. Shorter 5 min introduction: https://www.youtube.com/watch?v=t5JGQXCTe3c Written version: http://www.imponderablethings.com/2013/07/how-bitcoin-works-under-hood.html My Bitcoin address: 13v8NB9ScRa21JDi86GmnZ5d8Z4CjhZMEd Arabic translation by Ahmad Alloush Spanish caption translation by Borja Rodrigo, [email protected], DFJWgXdBCoQqo4noF4fyVhVp8R6V62XdJx Russian caption translation by Alexandra Miklyukova Italian voice over: http://youtu.be/1aEf3qr7UdE Italian captions translated by Simone Falcini, 1H5KdCnBooxfqpXtyQBBAKKRU7MkCZCVCe
Views: 2657860 CuriousInventor
What is DeepBrain Chain $DBC| Multichain Blockchain | AI Machine Learning Powerhouse | Binance When?
 
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https://www.deepbrainchain.org/ https://t.me/deepbrainchain ****This is a Sponsored Video***** Amount Received: $2500 --DeepBrain Chain $DBC-- Of course DeepBrain is focusing on artificial intelligence, but DeepBrain Chain is aiming to become THE deep learning machine for the AI industry. --Moving away from NEO-- DeepBrain has decided to move away from the Neo Blockchain $NEO to their own blockchain. They will continue to partner with NEO, and provide computing power through its platform, also utulizing the NEO Virtual Machine and smart contracts, as well as provide services for NEO dAPPs in the future. --Consensus Mechanism-- You would think DeepBrain is a proof of work consensus (POW) since there is mining, but actually its a hybrid mechanism of proof of importance (POI) and delegated proof of stake(POS). The idea behind proof of importance is the more you benefit the network, the more you should be rewarded. Each address is given a trust score, and by being active on the network it goes higher, which means more of a chance of getting a reward. Delegated proof of stake, is defined by a number of delegates who process blocks and get rewards based on voting weight from the network. --Multichain Framework-- To achieve scalability in the future, DeepBrain has a multi-chain framework with additional working chains. The mainchain contains the schema definition of each working chain, leading to an unlimited number of working chains. Each of these working chains comprise of sharding blockchains, and each shard has it’s own consensus node. This will allow the network to achieve parallel processing and scale to millions of transactions per second. --DeepBrain Mining-- The mining mechanism of Deepbrain chain is very clever. 70 percent of the miners revenue comes from the mining pool mentioned above, while 30 percent comes from the cost of computing from the users of the platform. For the 70 percent mining revenue, each miner is rewarded based on the ratio of total power they contribute to the overall network. By employing this dual mechanism, the chain maximizes the interest of the miners and the users. Check Out My Website https://chicocrypto.com/ Link To Purchase Chico Crypto Sweater https://goo.gl/Sf4hrR Follow Me On Twitter https://twitter.com/ChicoCrypto Join The Chat On Telegram https://t.me/chicocrypto Add Me on Lit: @chicocrypto Beer Money Donations BTC-1MRZnYYpMwrmhG6oEd9HYbSzJoVSvPdih9 ETH-0x6b0e08fac3c9d71f44fc0bb8e3ec31ddc2dc04cf Won't Take Your NEO or NEOGas HODL Those Puppies DISCLAIMER: I am not a financial adviser. I am just a dude who knows crypto like the back of his hand. Be responsible for your own trades!
Views: 4276 Chico Crypto
What is CRYPTO PHONE? What does CRYPTO PHONE mean? CRYPTO PHONE meaning & explanation
 
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What is CRYPTO PHONE? What does CRYPTO PHONE mean? CRYPTO PHONE meaning - CRYPTO PHONE definition - CRYPTO PHONE explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. Crypto phones are mobile telephones that provide security against eavesdropping and electronic surveillance. The interception of telecommunications has become a major industry. Most of the world's intelligence agencies and many private organisations intercept telephone communications to obtain military, economic and political information. The price of simple mobile phone surveillance devices has become so low that many individuals can afford to use them. Advances in technology have made it difficult to determine who is intercepting and recording private communications. Crypto phones can protect calls from interception by using algorithms to encrypt the signals. The phones have a cryptographic chip that handles encryption and decryption. Two algorithms are programmed into the chip: A key-exchange algorithm for the key agreement protocol and a symmetric-key algorithm for voice encryption. For the system to work, both users must have crypto phones logged into crypto mode. As with other phones, the signal is encrypted by GSM but it is also encrypted by the cryptographic chip. When the IMSI-catcher performs a man-in-the-middle attack and disables the GSM encryption, the crypto phone encryption remains intact. Therefore, while the signal is still being intercepted, it can no longer be decoded and fake SMS messages can't be sent as the IMSI-catcher does not have the correct code. At the beginning of the call, both users get the same session key by using the hash function. Then the session key becomes a confirm code. The confirm code could be 3 letters or 4 numbers, depending on the phone's manufacturer. In the crypto mode, the user reads the confirm code over the encrypted line to his communication partner and verifies the confirm code his partner reads back. If there is a discrepancy in the confirm code, a man-in-the-middle attack has been detected. The "session code" that has been established is used only for that specific call. At termination, all the parameters are wiped from memory, and there is no way to reconstruct the code. Intercepted and stored encrypted material can be kept for later analysis, but there is no way to break the code except, possibly, by the time consuming trial-and-error method.
Views: 708 The Audiopedia
Information & Network Security Lecture --  Key Distribution Techniques | public-secret | (Eng-Hindi)
 
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-~-~~-~~~-~~-~- Please watch: "PL vs FOL | Artificial Intelligence | (Eng-Hindi) | #3" https://www.youtube.com/watch?v=GS3HKR6CV8E -~-~~-~~~-~~-~-
Views: 28187 Well Academy
Cybersecurity: Crash Course Computer Science #31
 
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Cybersecurity is a set of techniques to protect the secrecy, integrity, and availability of computer systems and data against threats. In today’s episode, we’re going to unpack these three goals and talk through some strategies we use like passwords, biometrics, and access privileges to keep our information as secure, but also as accessible as possible. From massive Denial of Service, or DDos attacks, to malware and brute force password cracking there are a lot of ways for hackers to gain access to your data, so we’ll also discuss some strategies like creating strong passwords, and using 2-factor authentication, to keep your information safe. Check out Computerphile’s wonderful video on how to choose a password! https://www.youtube.com/watch?v=3NjQ9b3pgIg Pre-order our limited edition Crash Course: Computer Science Floppy Disk Coasters here! https://store.dftba.com/products/computer-science-coasters Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Want to know more about Carrie Anne? https://about.me/carrieannephilbin The Latest from PBS Digital Studios: https://www.youtube.com/playlist?list=PL1mtdjDVOoOqJzeaJAV15Tq0tZ1vKj7ZV Want to find Crash Course elsewhere on the internet? Facebook - https://www.facebook.com/YouTubeCrash... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 395592 CrashCourse
Inside Zuckerberg's plan to dominate the world | Facebook, Instagram, WhatsApp integration
 
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Mark Zuckerberg announced a plan to integrate messaging platforms of WhatsApp, Instagram, and Facebook Messenger. Behind promises of more convenience and growth is a plan to dominate the world of data and social media. If you like to protect yourself on the web and want to support my channel, sign up for NordVPN at https://nordvpn.org/thehatedone or use my coupon code 'thehatedone' at the checkout to save 75% on the 3-year plan! Bitcoin: 1C7UkndgpQqjTrUkk8pY1rRpmddwHaEEuf Dash Xm4Mc5gXhcpWXKN84c7YRD4GSb1fpKFmrc Litecoin LMhiVJdFhYPejMPJE7r9ooP3nm3DrX4eBT Ethereum 0x6F8bb890E122B9914989D861444Fa492B8520575 All of Facebook’s IT department, thousands of developers, are going to devote the next year or so to merge the backbone of the three platforms into one, so that their users can seamlessly send messages to each other across all three apps. The job won’t be done until it’s possible for WhatsApp users to send messages to Instagram users even if they don’t have Instagram accounts at all. Facebook has a long track record of violating and invading users privacy. From opening up access to their data to third party developers and advertisers, through sharing user data without their explicit consent, to tracking non-Facebook users and targeting them with ads. The move to integrate all three platforms into one seems that much more bizarre, as the integration could open up the ecosystem to even more security vulnerabilities and information manipulation. Sources The Facebook, Instagram, WhatsApp integration https://www.nytimes.com/2019/01/25/technology/facebook-instagram-whatsapp-messenger.html The New York Times coverage of Facebook's privacy cases https://www.nytimes.com/interactive/2018/06/03/technology/facebook-device-partners-users-friends-data.html https://www.nytimes.com/2018/12/18/technology/facebook-privacy.html Other coverage https://www.slashgear.com/why-facebook-whatsapp-instagram-cross-service-encryption-cant-happen-25563705/ https://www.wired.com/story/facebook-messenger-whatsapp-instagram-chat-combined-encryption-identity/ https://slate.com/technology/2019/01/facebook-messenger-instagram-whatsapp-encryption.html?via=gdpr-consent https://www.ibtimes.com/facebook-instagram-whatsapp-integration-project-creates-challenges-opportunities-2758430 Advertisers are all happy for this https://mobilemonkey.com/blog/2019/01/facebook-messenger-instagram-whatsapp-need-to-know https://www.wired.com/story/facebook-messenger-whatsapp-instagram-chat-combined-encryption-identity/ Credits: CO.AG Musichttps://www.youtube.com/channel/UCcavSftXHgxLBWwLDm_bNvA Chuki Beats https://www.youtube.com/user/CHUKImusic Follow me: https://twitter.com/The_HatedOne_ https://www.bitchute.com/TheHatedOne/ https://www.reddit.com/r/thehatedone https://www.minds.com/The_HatedOne The footage and images featured in the video were for critical analysis, commentary and parody, which are protected under the Fair Use laws of the United States Copyright act of 1976.
Views: 15021 The Hated One
Will This Trick Your Brain? (Color TEST)
 
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Your eyes and brain are pretty amazing! Watch ART vs SCIENCE: https://youtu.be/6Z37JA-wmgQ Subscribe: http://bit.ly/asapsci Written by Rachel Salt, Gregory Brown and Mitchell Moffit GET THE ASAPSCIENCE BOOK: http://asapscience.com/book/ FOLLOW US! Instagram and Twitter: @whalewatchmeplz and @mitchellmoffit Clickable: http://bit.ly/16F1jeC and http://bit.ly/15J7ube AsapINSTAGRAM: https://instagram.com/asapscience/ Facebook: http://facebook.com/AsapSCIENCE Twitter: http://twitter.com/AsapSCIENCE Tumblr: http://asapscience.tumblr.com Vine: Search "AsapSCIENCE" on vine! SNAPCHAT 'whalewatchmeplz' and 'pixelmitch' Created by Mitchell Moffit (twitter @mitchellmoffit) and Gregory Brown (twitter @whalewatchmeplz). Send us stuff! ASAPSCIENCE INC. P.O. Box 93, Toronto P Toronto, ON, M5S2S6 Further Reading: Number of discernible colors for color-deficient observers estimated from the MacAdam limits https://www.osapublishing.org/josaa/abstract.cfm?uri=josaa-27-10-2106 Afterimage of Perceptually Filled-in Surface http://www.cns.atr.jp/~kmtn/pdf/ssyksnScience01.pdf The primary visual cortex fills in color http://www.pnas.org/content/101/52/18251.full Microsaccades: Small steps on a long way http://www.sciencedirect.com/science/article/pii/S0042698909003691 Molecular Genetics of Human Color Vision: The Genes Encoding Blue, Green, and Red Pigments http://www.blueconemonochromacy.org/wp-content/uploads/2011/03/Science-1986-Nathans-193-202.pdf Comparing levels of crosstalk with red/cyan, blue/yellow, and green/magenta anaglyph 3D glasses http://cmst.curtin.edu.au/wp-content/uploads/sites/4/2016/05/2010-11.pdf Spooky Science: Discovering the Eerie Colors behind Afterimages http://www.scientificamerican.com/article/bring-science-home-afterimages/ Plants and colour: Flowers and pollination http://www.sciencedirect.com/science/article/pii/S0030399208002442 The influence of pigmentation patterning on bumblebee foraging from flowers of Antirrhinum majus. http://www.ncbi.nlm.nih.gov/pubmed/23420080 Why Are So Many Bird Flowers Red? http://www.ncbi.nlm.nih.gov/pmc/articles/PMC521733/ Mighty Mutualisms: The Nature of Plant-pollinator Interactions http://www.nature.com/scitable/knowledge/library/mighty-mutualisms-the-nature-of-plant-pollinator-13235427 The number of known plants species in the world and its annual increase http://www.biotaxa.org/Phytotaxa/article/view/phytotaxa.261.3.1
Views: 4932194 AsapSCIENCE
Network & Transport Layer 01 GATE 2003 - Previous Year Questions
 
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3.1 Which of the following assertions is FALSE about the Internet Protocol (IP)? It is possible for a computer to have multiple IP addresses IP packets from the same source to the same destination can take different routes in the network IP ensures that a packet is discarded if it is unable to reach its destination within a given number of hops The packet source cannot set the route of an outgoing packets; the route is determined only by the routing tables in the routers on the way GATE 2003 1 Marks Which of the following functionality must be implemented by a transport protocol over and above the network protocol? Recovery from packet losses Detection of duplicate packets Packet delivery in the correct order End to end connectivity GATE 2003 : 1 Marks The subnet mask for a particular network is 255.255.31.0. Which of the following pairs of IP addresses could belong to this network? 172.57.88.62 and 172.56.87.23 10.35.28.2 and 10.35.29.4 191.203.31.87 and 191.234.31.88 128.8.129.43 and 128.8.161.55 GATE 2003 : 1 Marks Add me on facebook on facebook.com/himanshu.kaushik.2590 Get access to all comprehensive course content in systematic manner. Call us on 9821876104/02 or email us at [email protected] visit our website www.gatelectures.com www.ugcnetlectures.com Pendrive course, Test series , Online access available Gate , ESE/IES, SSC JE/AE, Ugc net computer science , DSSSB , KVs, DRDO , BARC , ISRO , NIELIT etc Links of Our Demo lectures playlists Our Courses - https://goo.gl/pCZztL Data Structures - https://goo.gl/HrZE6J Algorithm Design and Analysis - https://goo.gl/hT2JDg Discrete Mathematics - https://goo.gl/QQ8A8D Engineering Mathematics - https://goo.gl/QGzMFv Operating System - https://goo.gl/pzMEb6 Theory of Computation - https://goo.gl/CPBzJZ Compiler Design - https://goo.gl/GhcLJg Quantitative Aptitude - https://goo.gl/dfZ9oD C Programming - https://goo.gl/QRNx54 Computer Networks - https://goo.gl/jYtsCQ Digital Logic - https://goo.gl/3iosMc Database Management System - https://goo.gl/84pCFD Computer Architecture and Organization - https://goo.gl/n9H69F Microprocessor 8085 - https://goo.gl/hz5bvv Artificial Intelligence - https://goo.gl/Y91rk2 Java to Crack OCJP and SCJP Examination - https://goo.gl/QHLKi7 C plus plus Tutorials - https://goo.gl/ex1dLC Linear Programming Problems - https://goo.gl/RnRHXH Computer Graphics - https://goo.gl/KaGsXs UNIX - https://goo.gl/9Le7sX UGC NET November examination video solutions - https://goo.gl/Wos193 NIELIT 2017 Question paper Solutions - https://goo.gl/w9QkaE NIELIT Exam Preparation Videos - https://goo.gl/cXMSyA DSSSB Video Lectures - https://goo.gl/f421JF ISRO 2017 Scientist SC paper Solution - https://goo.gl/bZNssE Computer Graphics - https://goo.gl/uWwtgw Number System Digital logic - https://goo.gl/7Q1vG1 Live Classroom Recordings - https://goo.gl/pB1Hvi Verbal Aptitude - https://goo.gl/oJKwfP Thermodynamics - https://goo.gl/BN5Gd6 Heat and Mass Transfer - https://goo.gl/Lg6DzN Pre and Post GATE Guidance - https://goo.gl/k5Ybnz GATE Preparation Tips by Kishlaya Das GATE AIR 37 - https://goo.gl/jfFWQp #NetworkLayer #TransportLayer #GATE2005
Advanced Bitcoin Scripting -- Part 1: Transactions & Multisig
 
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This is the first part of a more technical talk where Andreas explores Bitcoin script, with examples from the 2nd edition of Mastering Bitcoin, focusing on the use of conditional statements, flow control, guard clauses and time locks. The examples will include advanced multi-signature scripts, hash time lock contracts and asymmetric revocable commitments. Then he answers questions about Bitcoin's quirky bugs, where Bitcoin differs from Ethereum at a scripting level, how SegWit works, how consensus rules change, and whether Bitcoin is more than just a currency. Watch Part 2 here: https://youtu.be/pQbeBduVQ4I This talk took place at the San Francisco Bitcoin Developer (@SFBitcoinDev) meetup on April 3rd, 2017: https://www.meetup.com/SF-Bitcoin-Devs/events/238773843/ Review materials on the topics presented: Chpt. 7: https://github.com/bitcoinbook/bitcoinbook/blob/develop/ch07.asciidoc Chpt. 12: https://github.com/bitcoinbook/bitcoinbook/blob/develop/ch12.asciidoc The fundamentals of Bitcoin script 2:17 Bitcoin's operators 5:00 Creating transactions (P2PKH - Pay to Public Key Hash) 6:30 Public Key CheckSigs, security by obfuscating public keys 7:42 Redeeming the script 9:05 The RIPEMD160 hash operation 12:05 OP_EQUALVERIFY, OP_CHECKSIG, & the elliptic curve digital signature algorithm (ECDSA) 14:05 Summary 18:30 Illustrating scripts: Equal, EqualVerify, CheckSig, CheckVerify, CheckMultisig, CheckLockTimeVerify 19:45 Guard clauses 23:02 Script-based timelocks 24:53 Flow control statements, interactive artificial intelligence 26:50 If, Else, EndIf 28:35 Unlocking scripts, what conditional flows do in Bitcoin 33:55 1-of-2 multi-signature script 35:44 1-of-2 multi-signature script with guard clause 38:28 2-of-3 multi-signature script 41:30 2-of-3 multi-signature script with timelock guard clause 43:20 BIP-113, how time is referenced in Bitcoin 44:42 Backup clause & other nuances in multi-signature schemes 46:58 Game theory, complexity from simplicity 52:36 2-of-3 multi-signature script, unlocking 53:45 RELATED: Bitcoin: Where the Laws of Mathematics Prevail - https://youtu.be/HaJ1hvon0E0 The rules of Bitcoin (part 1) - https://youtu.be/VnQu4uylfOs The rules of Bitcoin (part 2) - https://youtu.be/vtIp0GP4w1E Forkology: A Study of Forks for Newbies - https://youtu.be/rpeceXY1QBM Irreversibility and consumer protection - https://youtu.be/R107YWu5XzU Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and well-respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Subscribe to the channel to learn more about Bitcoin & open blockchains! If you want early-access to talks and a chance to participate in a monthly LIVE Q&A with Andreas, become a patron: https://www.patreon.com/aantonop Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 31078 aantonop
Introduction 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: 10611 Udacity
Computer Networks 06 Numerical on Stop and wait protocol
 
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Thank you for watching our lectures. These Lectures are created for Thorough Understanding of Concepts for the Competitive examinations specially for UGC NET Computer Science and Applications. For Complete Study Material for UGC NET Exam preparation please call/whatsapp us at 9821876104/02 or email us at [email protected] . If you liked the video and it was helpful for you Please like the video and share it on Facebook with your friends so that others can also get benefitted from them. You can also check and visit out other playlists. I am sharing the links of other playlists here. You can also Add me on Facebook at facebook.com/Himanshu.kaushik.2590 or visit our websites www.gatelectures.com and www.digiimento.com Checkout our other playlists  Programming and Data Structures https://goo.gl/66Ndja  C Programming https://goo.gl/HGSbCR  Operating System https://goo.gl/1qp6gj  Digital Logic https://goo.gl/qhsRwH  Discrete Mathematics https://goo.gl/FjsiEk  Computer Networks https://goo.gl/DuRQPv  Theory of Computation https://goo.gl/CNKn25  Database Management System https://goo.gl/vJpDDU  UGC NET Paper 1 https://goo.gl/97Cpvo  Previous year paper Solutions https://goo.gl/KEDL9f  Compiler Design https://goo.gl/RykvXj  Artificial Intelligence https://goo.gl/WRdyYb  C Plus plus https://goo.gl/YPJsCi  Linear Programming Problem https://goo.gl/r58RxQ  UGC NET Paper 2 Solutions https://goo.gl/3Pia9w  Computer Graphics https://goo.gl/tRFa39  Microprocessor 8085 https://goo.gl/Z57Uit  DSSSB Computer Science https://goo.gl/kiZVvx  Placement Preparation https://goo.gl/siG3Ta  Daily Current Affairs  UPPSC LT Grade Teacher https://goo.gl/iZ3CY2  Current Affairs https://goo.gl/kJdnX5  NIELIT Scientist https://goo.gl/4GKNXG  Quantitative Aptitude https://goo.gl/Rzs6fj
Workshop on Quantum Algorithms and Devices - Part 1
 
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8:30AM – 9:00AMWelcome and Introductions/Framing for event Krysta Svore (QuArC) 9:00AM – 9:40AMTrue Randomness: Its Genesis and Expansion Yaoyun Shi (University of Michigan) Abstract: How can we produce randomness of almost perfect quality, in large quantities, and under minimal assumptions? This question is fundamental not only to modern day information processing but also to physics. Yet a satisfactory answer is still elusive to both the practice and the theory of randomness extraction. Here we propose a solution through an emerging paradigm of extracting randomness from physical systems and basing security on the validity of physical theories. We construct and analyze such (new and existing) "physical extractors" extracting from non-interacting quantum devices, whose inner-workings may be imperfect or even malicious. Composing our extractors gives a protocol that starts with a single and arbitrarily weak source of a fixed length and produces an arbitrarily long random output of close to optimal quality and provable security against all- powerful quantum adversaries. Several desirable features of our protocols, including cryptographic level of security and the tolerance of device imprecision, widen the scope of their applications and facilitate their implementations with the current quantum technology. Our work also implies that unless the world is deterministic, we can experimentally create inherently random events and be confident of their unpredictability. It thus provides a practical and strongest method known for mitigating the "freedom of choice" loophole for experimentally rejecting local realism. Based on joint works with Carl A. Miller (arXiv:1402.0489), Kai- Min Chung and Xiaodi Wu (arXiv:1402.4797). 9:40AM – 10:20AMClassical Command of Quantum Systems Ben Reichardt (University of Southern California) Abstract: Can a classical experimentalist command an untrusted quantum system to realize arbitrary quantum dynamics, aborting if it misbehaves? We give a way for a classical system to certify the joint, entangled state of a bipartite quantum system, as well as command the application of specific operators on each subsystem. This is accomplished by showing a strong converse to Tsirelson's optimality result for the CHSH game: the only way to win many games is if the bipartite state is close to the tensor product of EPR states, and if the measurements are the optimal CHSH measurements on successive qubits. This leads to a scheme for secure delegated quantum computation. Joint work with Falk Unger and Umesh Vazirani. 10:20AM – 10:50AMCoffee Break
Views: 714 Microsoft Research
HAR 2009: How we eavesdropped 100% of a quantum cryptographic key 4/6
 
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Clip 4/6 Speakers: Ilja Gerhardt, Vadim Makarov Quantum cryptography, as being based on the laws of physics, was claimed to be much more secure than all classical cryptography schemes. (Un)fortunately physical hardware is not beyond of an evil control: We present a successful attack of an existing quantum key distribution system exploiting a photon detector vulnerability which is probably present in all existing devices. Without Alice and Bob losing their faith in their secure communication, we recorded 100% of the supposedly secret key. The actual eavesdropping hardware we have built will be shown during the conference. A brief intro into quantum cryptography will be given at the beginning of the talk. Then, Vadim Makarov will explain the above attack. At the end of the talk, Ilja Gerhardt will (hopefully) present another application of the discovered detector vulnerability, which shall remain a surprise :) For more information go to: https://har2009.org/program/events/168.en.html
Views: 918 Christiaan008
How #Ethereum differs from #Bitcoin: #Blockchain Explained with Joe Lubin - #3
 
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In the third video in this series, Co-founder of Ethereum, Joe explains the differences between Ethereum and Bitcoin. While Bitcoin became a successful experiment in monetary theory, Ethereum expanded upon the underlying technology to create a platform for decentralized applications or “dapps.” Joe elaborates on the benefits of Ethereum, including trusted transactions, smart software objects, automated agreements and many more. “Ethereum is one of the foundational protocols of the decentralized Web,” says Lubin. Additionally, he mentions how Ethereum can already integrate and interoperate with current decentralized protocols like file storage and personal identity. Trust is a fundamental component of decentralization and Joe illustrates how nodes play into ensuring network #security and explains how Ethereum will become the foundational trust layer of the Web 3.0 movement. He goes further into detail about how Ethereum is the most decentralized blockchain platform with over 20k nodes worldwide and the number of nodes will increase when Ethereum transitions from the computationally heavy proof of work (PoW) consensus mechanism to the proof of stake (PoS) consensus mechanism. When discussing Ethereum’s transition from proof of stake to proof of work, Lubin states, “The barrier to entry to participating, to validating transactions on the system and securing the network will drop quite dramatically.” - To learn more about ConsenSys visit: https://consensys.net/ - Follow Joe on Twitter for breaking blockchain insights: https://twitter.com/ethereumJoseph - For a crash course on Bitcoin, visit: https://decryptmedia.com/resources/bitcoin - For a crash course on Ethereum, visit: https://decryptmedia.com/resources/ethereum - Learn more about the ConsenSys spoke, Liquality, which enhances interoperability between decentralized protocols like Bitcoin and Ethereum through Atomic Swaps: https://liquality.io
Views: 494 ConsenSysMedia
2016-10-19 CERIAS - Usable and Secure Human Authentication
 
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Recorded: 10/19/2016 CERIAS Security Seminar at Purdue UniversityUsable and Secure Human AuthenticationJeremiah Blocki, Purdue UniversityA typical computer user today manages passwords for many different online accounts. Users struggle with this task ---often forgetting their passwords or adopting insecure practices, such as using the same passwords for multiple accounts and selecting weak passwords. Before we can design good password management schemes it is necessary to address a fundamental question: How can we quantify the usability or security of a password management scheme\? In this talk we will introduce quantitative usability and security models. Notably, our user model, which is based on research on human memory about spaced rehearsal, allows us to analyze the usability of a large family of password management schemes while experimentally validating only the common user model underlying all of them. We argue that these quantitative models can guide the development of usable and secure password management schemes. In support of our argument we present Shared Cues, a simple password management scheme in which the user can generate many strong passwords after memorizing a few randomly generated stories. Our password management schemes are precisely specified and publishable: the security proofs hold even if the adversary knows the scheme and has extensive background knowledge about the user \(hobbies, birthdate, etc.\).This talk is based on joint work with Manuel Blum and Anupam Datta References:http://arxiv.org/abs/1302.5122http://arxiv.org/pdf/1410.1490v1.pdfAt a high level Professor Blocki describes himself as \&quot\;a theoretical computer scientist who is interested in applying fundamental ideas from computer science to address practical problems in usable privacy and security.\&quot\; He is especially interested in developing usable authentication protocols for humans. Are there easy ways for humans to create and remember multiple strong passwords\? Can we design secure cryptographic protocols that are so simple that can be run by a human\? Jeremiah has also developed algorithms for conducting privacy preserving data analysis in several different application settings including social networks and password data. Prior to joining Purdue Jeremiah completed his PhD on Usable Human Authentication at Carnegie Mellon University under the supervision of his advisors Manuel Blum and Anupam Datta. He also spent a year at Microsoft Research New England as a postdoc. \(Visit: www.cerias.purdue.edu\)
Views: 71 ceriaspurdue
Trading Bitcoin Crypto Market Update/Prediction 2019
 
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WolfPack Cryptos/MMGinvest is an [Educational channel NOT investment advice, consult your financial advisor] Crypto Currencies are highly volatile assets WPC highly recommends you consult your financial advisor and do your own research. All gains and losses are due to your own decision making and WolfPackCryptos LLC is geared towards creating an educational community in the realm of investing within the CryptoCurrency market and cannot guarantee any profits or losses. You should never risk any money you cannot afford to lose this is a new market full of scams and start-up ventures hence high-risk assets with a high failure rate. A trader from WolfPack Cryptos Investment Strategies talks about trading Bitcoin Altcoins and what the future holds for the crypto market. Our affordable Private membership includes Trading Signals, Altcoin fundamentals research and ICO analysis. MMG Website: https://mmginvest.com/ Instagram: mastermind_group Laszlo's Twitter: @MMG_invest Come check out WolfPack Cryptos Website, Telegram, Twitter For Private Members area please visit our Website and email us or contact Admin in the Free Telegram room. WPC Website: https://www.wolfpackcryptos.io/ WPC Free Telegram Group: https://t.me/wolfpackcryptos WPC Free News Room + Market Updates: https://t.me/WolfPackCryptosNews WPC Twitter: https://twitter.com/WolfPackCryptos NordVPN Service, 2 years of service for the low price of only $95.75 in total, or $3.99 per month. This deal gives users an exclusive 66% discount., surf the web anonymously and securely. VPN are easy to use and available for your smartphone as well, protect your data and shield yourself from Hackers. Link: https://go.nordvpn.net/aff_c?offer_id=15&aff_id=14644&url_id=902 Protect yourself from AI and algorithms and mass data collection on everything you do, have you ever noticed when you shop online prices sometimes change for the same products you are searching for "prices always go higher" this is because algo's can determine how much you are willing to pay rather than find the cheapest bargain. Most of the time they put on the screen the prices you are willing to pay or paid advertisement assuring you do not even see cheaper prices from all competitors, a good example is Amazon it always populates your feed first when searching google because they buy prime real estate on the web. Using VPN when shopping can help mask who you are and help you find the cheapest prices. VPN discount Link: https://go.nordvpn.net/aff_c?offer_id=15&aff_id=14644&url_id=902 Being based in Panama, NordVPN falls under the country’s jurisdiction and Panama has no data retention laws; A strict no logs policy . We want to ensure user privacy and security, therefore we never log user activitvity Military-grade AES-256-CBC encryption and a variety of protocols to choose from: OpenVPN (UDP and TCP), PPTP, L2TP/IPSec, IKEv2/IPSec; Risk-free 30-day money-back guarantee Unlimited bandwidth and data; 2832 servers located in 59 countries (the server number is always growing); Fast speed servers that are also reliable and consistent; Multiple ways to contact 24/7 customer support (live chat, email, ticket system); A CyberSec feature that blocks dangerous websites and lets users avoid annoying An automatic kill switch (can kill individual processes or kill whole internet connection); 6 simultaneous connectionsP2P friendly; Works in countries (China, the Middle East countries) where internet access is restricted, and strong censorship is in place; Double encryption to ensure top-level privacy and security TradingView best FREE charting software and discounts for PRO members with access to all indicators and charting tools: https://tradingview.go2cloud.org/aff_c?offer_id=2&aff_id=11798 For extra security get a burner phone number to use everywhere when signing up to Telegram and social media: https://www.burnerapp.com/ For Organic meat at affordable prices delivered to your home [PROMO FREE Lifetime Beef] visit http://fbuy.me/j5SSD for $120 you can receive whole months worth of organic free range grass fed poultry. A healthy diet is essential for healthy brain function, to look good, feel good and to avoid cancer and hormonal imbalances. (only available in the US)
Views: 623 WolfPack Cryptos
Caitlin Long: Will Blockchain Free Us from Wall Street?
 
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Caitlin Long (Mises.org/Long) recently joined us in San Francisco for an inside look at how blockchain technology might blow up the financial service and banking industries. This is a presentation you won't want to miss from someone at the cutting edge of both blockchain technology and the legal landscape surrounding it.
Views: 7336 misesmedia
(TTC) partners with (DCT) Providing advanced blockchain ecosystem to help build decentralized apps
 
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(TTC) partners with (DCT) Providing advanced blockchain ecosystem to help build decentralized apps - RICH TV LIVE - July 18, 2018 My other TTC videos - https://www.youtube.com/watch?v=hzu7O-wUqig - https://www.youtube.com/watch?v=BJi92Jj3kTg This is huge news for TTC protocol - git.eco is a token-incentivized collaboration community for developers, where the reward for contribution is distributed with transparency and clear logic. It is an open source project launched by TTC Protocol with a core philosophy as following: We believe in the power of collective intelligence, that when more people are working for a same goal, it can generate a bigger and better impact for the world. In past months, we have been searching for a partner who shares the same vision and philosophy and who is willing to commit to turn this idea into reality. Today, we are excited to announce that DECENT($DCT), a leading blockchain ecosystem builder based in Geneva, joins in as a partner. DECENT provides all of the tools and technologies needed for projects and businesses to build decentralized applications for real-world use cases. Transforming Open Source Community with Blockchain The blockchain tech scene is formed around and developed upon the Open Source mentality. Many (if not most) of blockchain projects share their code to the public, encouraging the community to take part. Such openness has a remarkable advantage over a private development process. The community can instantly learn from each other and find solutions more efficiently using a collective intelligence. Most importantly, a project’s potential is not limited by a small group of brains. In theory, this technology train should run on its own, fueled by the community and its active participations. However, as every coin has two sides, there is a dark side to Open Source. The most famous and well known one is probably Pareto Syndrome — 20% of the participants do 80% of the work (hence, also known as 20/80 syndrome). In reality, it could get as bad as 5/95. Both TTC Protocol and DECENT believe that using a blockchain technology, by redistributing the value of a project with more transparency, will enable the ability to tackle such a problem and create a healthier Open Source community. With DECENT’s development know-hows and resources with TTC’s TReE (TTC Reward Engine) technology, we aim to build the world’s first contribution-based incentivizing source code management platform. Rich TV is dedicated to creating educational/entertaining content featuring: cannabis stocks, crypto currency, icos, ipos, sports, travel, and trending topics in a fun and simple way. Join the RICH TV LIVE revolution. Subscribe - https://www.youtube.com/c/RICHTVLIVE Visit - http://www.richtvlive.com/ a one-stop shop for cryptocurrency, stocks, sports, travel, and trending topics Popular Uploads - https://goo.gl/tbvXGg Most Recent Upload - https://goo.gl/unKXBy YouTube Channel Page - https://goo.gl/yUdG7w Subscribe - https://goo.gl/q2tLnn Rich TV Live Playlist - https://goo.gl/e116JF YouTube support Tubebuddy - https://www.tubebuddy.com/RICHTVLIVE Join the Conversation get the RICH TV LIVE app at Google Play - https://play.google.com/store/apps/details?id=com.app.richtvlive iPhone App Store - https://itunes.apple.com/us/app/richtvlive/id1212158240?Is=1&mt=8 Social Links https://www.patreon.com/rss/richtv?auth=jByinyei__3uQjBLouXwzteTuUtosD7U https://www.youtube.com/c/RICHTVLIVE https://steemit.com/@richtvlive https://www.facebook.com/Richtvlive/ https://www.linkedin.com/in/rich-tv-live-51b32743/ https://twitter.com/RichTVLive https://www.instagram.com/rich_tv_live/?hl=en https://www.snapchat.com/add/richtclive88 https://www.pinterest.com/richtvlive/ https://www.tumblr.com/blog/richarddesousamedia-blog Disclaimer Rich TV's company profiles and other investor relations materials, publications or presentations, including web content, are based on data obtained from sources we believe to be reliable but are not guaranteed as to accuracy and are not purported to be complete. As such, the information should not be construed as advice designed to meet the particular investment needs of any investor. Any opinions expressed in Rich TV reports company profiles or other investor relations materials and presentations are subject to change. Rich TV and its affiliates may buy and sell shares of securities or options of the issuers mentioned on this website at any time. Investing is inherently risky. Rich TV is not responsible for any gains or losses that result from the opinions expressed on this website, in its research reports, company profiles or in other investor relations materials or presentations that it publishes electronically or in print. We strongly encourage all investors to conduct their own research before making any investment decision. For more information on stock market investing, visit the Securities and Exchange Commission ("SEC") at www.sec.gov.
Views: 5702 RICH TV LIVE
2011: The Adventures of Alice & Bob
 
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This is the opening video from RSA Conference 2011. Theme: Ron Rivest used fictitious placeholder names to explain the RSA encryption method and the many steps involved in the complex system. Alice & Bob were born to make the subject matter easier to grasp – replacing Person A and Person B. Bruce Schneier, author of Applied Cryptography and another forefather of information security, introduced a host of other characters to make technical topics more understandable. This cast of friends and enemies – including Eve the Eavesdropper, Mallory the Malicious Attacker and Walter the Warden, among others – populate Alice & Bob's universe and evolved into common parlance in cryptography and computer security. See more at: http://www.rsaconference.com/about/themes#sthash.qY7dOLI8.dpuf
Views: 728 RSA Conference
IP Exchange (IPSX ) - ICO Review 2018
 
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Website - https://ip.sx Whitepaper - https://ip.sx/dist/Whitepaper-IPSX-05.pdf/dist/Whitepaper-IPSX-05.pdf This is my journey into Crypto Space and I have managed to live on my income from Bitcoin and Crypto full-time. Although many may be seeking wealth from this world I also find it fascinating the new technologies and the way the blockchain is evolving into a completely new beast. I hope you enjoy following my journey in this crypto space. We also have a blog at :- http://www.Crypto-Freedom.com Keep your crypto safe with an offline wallet (cold wallet) - Ledger Nano S (Offline cold wallet) https://www.ledgerwallet.com/r/042e Signup to coinbase exchange - https://www.coinbase.com/join/5946eae52ee3cd06bab8840d If you would like to donate to us :- Litecoin - LcRoCfxfGa8SRhMJ8TkaRCL3e61ssxXmKS Ethereum - 0x1E8401E810236F08756868CE8b8bB6bF5Faf6F14
Views: 865 Crypto Freedom
Women in the Blockchain #blockchainwomen
 
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Karen Hsu Chief Revenue Officer BlockCypher With over 20 years of experience in technology companies, Karen is co-inventor of 5 patents and has worked in a variety of engineering, marketing and sales roles to bring new products to market. She has worked on Data Integration, Business Intelligence, and CRM solutions at companies including IBM, Siebel Systems, Informatica, and SugarCRM. She has also worked closely with standards organizations such as SWIFT, NACHA and ACORD. Lily Liu,CoFounder Earn.com Lily is a cryptocurrency investor and advisor, with a background as a CFO and operating executive in the US and China. Most recently, Lily co-founded Earn.com which was recently acquired by Coinbase. Previously, Lily was the CFO of Chinaco Hospital Corporation, where she built a 500-bed, international standard general hospital in Cixi, just outside of Shanghai. It was China’s first foreign joint venture, private general hospital. Lily also worked at KKR in New York as well as McKinsey in New York and Beijing. Vanishree Rao, PhD, Senior Cryptographer Intertrust Technologies Vanishree is passionate about identifying security pain points and designing, developing, and deploying security/cryptography solutions. At Intertrust Technologies currently her main focus areas are blockchain technologies, white box cryptography and digital rights management. Prior to Intertrust, she was a Research Scientist at Xerox PARC, where she worked on various government-funded as well as industry-need driven security projects. She obtained her PhD in Theoretical Cryptography from UCLA. Her advisor was Professor Amit Sahai, a world-renowned Cryptographer. She has worked on various areas in cryptography, including, zero-knowledge proofs, multi-party computation protocols, key exchange protocols and program obfuscation. Jackie Hart Founder ZeroPoint:Blockchain in Balance The ZeroPoint Experience is an immersive zone within Blockchain conferences for attendees to come undone, to re-center and regroup and connect with other aligned attendees in a more intimate and authentic environment.ZeroPoint seeks to engage people and support those who are open to doing business in a more conscious and collaborative way. Jackie has been a speaker on numerous conferences on the topic of Blockchain for Good. She serves on the Board for regenerative community blockchain company and is on several blockchain advisory boards. She is a long time meditator, yogini, nature connection guide and mother to five children she sees as her biggest teachers. Audrey Chaing, Founder Blockchaing Audrey is a cryptocurrency trader and blockchain analyst, and runs the news site blockchaing.org. She has been trading Bitcoin since 2013 and is a member of Oakland Blockchain Developers and SF Ethereum Developers. Through her consulting work at Blockchaing, she is CTO at a new blockchain protocol called Infinium and launching a crypto investment fund with Precursor Ventures. Previously, she co-founded 2 companies, through which she participated in Start-Up Chile and Singularity University Global Solutions Program. She has a decade of experience on Wall Street as an investor, trader, and research analyst at companies like Credit Suisse, Wells Fargo, and BlackRock. Audrey has a degree in Computer Science from MIT with a concentration in Artificial Intelligence, and earned her MBA at the Wharton School of the University of Pennsylvania. She is a frequent speaker at events like Google International Women's Day, Global Blockchain Forum, [email protected], LendIt/BlockFin, and OneWorld Blockchain at Davos. She created the MIT Applied Blockchain Series, helping founders get from idea to demo-able product. MODERATOR: Monette Stephens Head Corp Dev Tokensoft has a unique combination of entrepreneurial, investing, technical, banking, sales and marketing expertise. As the Head of Corporate Development of TokenSoft, she has been instrumental in building the sales and partnership pipeline supporting over 20 fully compliant Security Token Offerings with investors from over 170 countries. Monette co-founded and ran a FINRA registered Broker-Dealer obtaining Series 7, 24 and 63 registrations and had multiple exits through IPO or M&A. She has BS and MS degrees in CS/ECE. For further info check out https;//www.fintechsv.com
Shihan Sajeed: Laser Damage Creates Backdoors in Quantum Cryptography
 
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QCrypt 2016, the 6th International Conference on Quantum Cryptography, held in Washington, DC, Sept. 12-16, 2016. Web site: http://2016.qcrypt.net/
Views: 575 QuICS
Information Privacy - Information Security Lesson #12 of 12
 
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Dr. Soper discusses issues relating to information privacy. Topics covered include technology-related privacy concerns, fair information collection principles, privacy laws, information privacy and the government, multiple identities, identity theft, privacy policies, privacy and social networks, privacy and online payments, preference tracking, targeted advertising, tracking cookies, privacy and email, and privacy and emerging technologies.
Views: 21544 Dr. Daniel Soper
Cryptos Are Bottoming Out, Pantera's Krug Says
 
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Oct.16 -- Joey Krug, Pantera Capital co-chief investment officer, speaks with Bloomberg's Caroline Hyde at the Sooner Than You Think Conference in Brooklyn, NY. Krug discusses the current market of cryptocurrencies saying it's close to the bottom.
Views: 1190 Bloomberg Technology
[DS15] illusoryTLS   Nobody But Us  Impersonate,Tamper and Exploit  - Alfonso De Gregorio
 
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Cryptographic backdoors are a timely topic often debated as a government matter to legislate on. At the same time, they define a space that some entities might have practically explored for intelligence purposes, regardless of the policy framework. The Web Public Key Infrastructure (PKI) we daily rely on provides an appealing target for attack. The entire X.509 PKI security architecture falls apart if a single CA certificate with a secretly embedded backdoor enters the certificate store of trusting parties. Do we have sufficient assurance that this has not happened already? We researched this scenario from a both experimental and speculative point of view. From the experimental standpoint, we submitted an entry to the first Underhanded Crypto Contest, aimed at making a technical point. Aptly named illusoryTLS, the entry is an instance of the Young and Yung elliptic curve asymmetric backdoor in the RSA key generation. The backdoor targets a Certification Authority public-key certificate, imported in the certificate store of a pretty standard HTTPS client and TLS server. The security outcome is the worst possible outcome, because the backdoor completely perverts the security guarantees provided by the TLS protocol, allowing the attacker to impersonate the endpoints (i.e., authentication failure), tamper with their messages (i.e., integrity erosion), and actively eavesdrop on their communications (i.e., confidentiality loss). illusoryTLS backdoor has some noteworthy properties: 1. NOBUS (Nobody But Us): The exploitation requires access to resources not embedded in the backdoor itself. In this case the secret resource is an elliptic-curve private key. 2. Indistinguishability: As long as a computational hardness assumption called Elliptic-Curve Decisional Diffie-Hellman (ECDDH) holds, the illusoryTLS backdoored key pairs appear to all probabilistic polynomial time algorithms like genuine RSA key pairs. Therefore black-box access to the key-generator does not allow detection. 3. Forward Secrecy: If a reverse-engineer breaches the key-generator the previously stolen information remains confidential (secure against reverse-engineering). 4. Reusability: The backdoor can be used multiple times and against multiple targets. In the Internet X.509 PKI the security impact of such a backdoor would extend further; the presence of a single CA certificate with a secretly embedded backdoor in the certificate store renders the entire TLS security illusory. In fact, the current practice of universal implicit cross-certification makes the whole X.509 PKI as weak as its weakest link. Therefore, when dealing with this class of attacks in the context of X.509 PKIs, it might be not sufficient to avoid outsourcing the key generation, but to have assurance about the security of each implementation of vulnerable key-generation algorithms employed by trusted credential issuers. At this time, Mac OS X Yosemite has 211 CA certificates installed. A similar number of certificates is present in the Firefox, Google Chrome, and Microsoft Windows certificate stores. Do we have sufficient assurance about the tens or hundreds CA certificate we daily entrust our business to? We reviewed the key-generation security requirements, set forth in the most relevant protection profiles in the Common Criteria certification processes and demanded by industry organizations and associations (i.e., CA/Browser Forum), and answer in the negative. The conclusion is that, as long as the implementation of algorithms adopted by trusted entities (e.g., CAs) vulnerable to this class of backdoors cannot be audited by relying parties, the assurance provided by illusoryTLS (i.e., none whatsoever) is not any different from the assurance provided by systems relying upon TLS and the Web PKI for origin authentication, confidentiality, and message integrity guarantees. Alfonso De Gregorio is a security technologist, founder of BeeWise, the first cyber security prediction market, and Principal Consultant at secYOUre. He started his career in information security in the late 1990s. Since then he never stopped contributing his little share to the discussion and practice of security engineering. Among the positions held, he served as Chief Security Architect at an HSM vendor, Expert for the European Commission and Visiting Scholar at the Computer Security and Industrial Cryptography (COSIC) research group, K.U. Leuven. In his career as a public speaker, Alfonso addressed a wide range of audiences across the globe, including industry executives, academics, security practitioners, and hackers, speaking about security economics, software security, intelligence support systems, cryptography engineering and cryptographic backdooring. Alfonso researches solutions for building cybersecurity incentives, tweets @secYOUre, and generally does not speak of himself in the third person.
Programming a quantum computer with Cirq (QuantumCasts)
 
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Want to learn how to program a quantum computer using Cirq? In this episode of QuantumCasts, Dave Bacon (Twitter: @dabacon) teaches you what a quantum program looks like via a simple “hello qubit” program. You’ll also learn about some of the exciting challenges facing quantum programmers today, such as whether Noisy Intermediate-Scale Quantum (NISQ) processors have the ability to solve important practical problems. We’ll also delve a little into how the open source Python framework Cirq was designed to help answer that question. Follow these instructions to install Cirq → http://bit.ly/2IermSw Need to catch up? Watch every episode of QuantumCasts here → http://bit.ly/2Pw0xay Learn about the Google AI Quantum team → http://bit.ly/2DnvKLy Subscribe to the TensorFlow channel→ http://bit.ly/TensorFlow1
Views: 5925 TensorFlow
ICO Review: 0x Project (ZRX) - Protocol for Trading Tokens
 
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0x protocol enables transactions of ERC20 tokens between users in a secure, trustless, feeless, and quick manner through the use of Ethereum smart contracts. Full report by Crush Crypto: https://crushcrypto.com/analysis-of-0x/ Download the free ICO Guide which contains 6 simple steps for analyzing any ICOs to find the winning projects: https://crushcrypto.com/youtube/ Note: This is not a paid review. We do not offer promotional or advertising services. Our content is based on our own research, analysis and personal opinion. _______________________________________ What does the company/project do? 0x is a protocol that facilitates the exchange of ERC20 tokens. Anyone or company can utilize 0x in the backend to operate a decentralized exchange. 0x protocol enables transactions of ERC20 tokens between users in a secure, trustless, feeless, and quick manner through the use of Ethereum smart contracts. Ultimately, every assets, including fiat, commodities, stocks, can potentially be represented as a token. 0x’s goal is to allow any Ethereum tokens to be traded efficiently. 0x combines the strengths and avoids the weaknesses of the two types of exchange by having off-chain order relay with on-chain settlement. Until the actual exchange of tokens, all the actions are done off-chain. _______________________________________ What are the tokens used for and how can token holders make money? ZRX has 2 main utility functions: Governance – ZRX will allow holders to vote on changes to the 0x protocol. This is a critical feature since relayers will want to upgrade the protocol and use the same 0x contracts as other relayers in order to maximize liquidity. A governance mechanism decreases the chance of upgrade forks, allows an automatic upgrade of the contracts, ensuring consistency across users, and therefore permits efficient upgrades to the protocol. Relaying fees – Relayers will host off-chain order-books and matching engines to match orders of makers and takers (the users wanting to trade ERC20 tokens). Makers and takers being matched using the service will pay a fee to the relayer using ZRX. Since a fee in ZRX will be paid for every transaction, the more transactions are being done on the 0x protocol, the more valuable ZRX should be. _______________________________________ Opportunities - The problems that 0x is trying to solve benefit from decentralization. The risks pertaining to centralized exchange are some of the biggest factors preventing the wide adoption of cryptocurrency. The hacks at different exchanges are some of the biggest news that layman learn about cryptocurrencies and this is undesirable. - Network effect is in place for this project. The more usage the 0x protocol (exchanges) has, the more valuable ZRX is. This is because investors prefer exchanges with heavy volume and lower bid/ask spread. - ICO is a new trend that is gaining popularity very quickly. In July 2017 alone, $665 million was raised – that is twice as much money as was raised in the first five months of the year combined. - 0x has already secured partnerships with promising projects including Ethfinex, District0x, Augur, and Melonport, among others. The partnerships with established companies such as Bitfinex (for their Ethfinex spinoff) and ANX International (for their OpenANX spinoff) are especially exciting. - Multiple blockchain-focused venture capital firms have invested in 0x, meaning that the project has already passed due diligence of those institutional investors. _______________________________________ Concerns - SEC regulations may have restrictions on exchanges operating in the US / for US citizens, potentially limiting the usage of 0x as certain ERC20 tokens are considered to be securities. - ICO contributors cannot use MyEtherWallet for registration / contribution. The only supported wallets are Ledger hardware wallet, MetaMask extension for Chrome, and Parity wallet. Please refer to this blog post for more details about contribution and crowdsale structure. - 0x only works for ERC20 tokens. If another smart contract protocol overtakes Ethereum in fund raising popularity, there may not be much demand for ZRX going forward. _______________________________________ Disclaimer The information in this video is for educational purposes only and is not investment advice. Please do your own research before making any investment decisions. Cryptocurrency investments are volatile and high risk in nature. Don't invest more than what you can afford to lose. Crush Crypto makes no representations, warranties, or assurances as to the accuracy, currency or completeness of the content contained in this video or any sites linked to or from this video.
Views: 12385 Crush Crypto
Lecture on Decentralized AI by Gene Kogan
 
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Blockchains and deep learning are two of the most promising technologies to emerge in recent years. As Bitcoin has dispersed into dozens or hundreds of viable cryptocurrencies, startups and venture capitalists are beginning to consider other alternative use cases of blockchains as a means of decentralized consensus. Meanwhile, major sectors of the financial industry, transportation infrastructure, and social media are increasingly dominated by machine learning algorithms, and AI is gradually augmenting or automating various human faculties. The influence of both of these technologies is further expanded by more of our everyday appliances getting connected to the internet and accumulating data. A primordial soup of ingredients for widespread decentralized AI is forming, and many are beginning to speculate about its potential; is it a libertarian panacea to an unjust society, or a totalitarian nightmare with no off-switch? Gene Kogan is an artist and a programmer who is interested in generative systems, artificial intelligence, and software for creativity and self-expression. He is a collaborator within numerous open-source software projects, and leads workshops and talks on topics at the intersection of code and art. Gene initiated and contributes to ml4a, a free book about machine learning for artists, activists, and citizen scientists. He regularly publishes video lectures, writings, and tutorials to facilitate a greater public understanding of the topic. Slides: https://docs.google.com/presentation/d/1RI6BnBsJtTBg3djZbD1hDjuhQagPBAUtAqcqoYWQTxU/edit?usp=sharing 2:20 Why decentralized and AI are relevant to each other 7:28 Overview of deep learning 17:15 Problems with centralized machine learning 22:26 What decentralization is and isn't 29:27 Problems with the web today 37:48 First generation peer-to-peer networks 42:50 Applications of cryptography 49:24 Decentralizing the web; storage, transport, & computation 1:02:04 Smart contracts and automation 1:05:59 Decentralized autonomous organizations (DAO) 1:12:22 DAO examples and use cases 1:22:10 AI DAOs 1:31:15 Decentralizing machine learning & OpenMined protocol 1:34:14 Federated learning & homomorphic encryption 1:42:38 Learning through smart contracts and oracles 1:50:40 Open questions
Views: 932 HasGeek TV
Computing: Reflections and the Path Forward
 
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MIT Chancellor for Academic Advancement W. Eric L. Grimson, the Bernard M. Gordon Professor of Medical Engineering, offers an introduction to the session on “Computing: Reflections and the Path Forward” at the celebration of the MIT Stephen A. Schwarzman College of Computing. This historic three-day event provided a thoughtful, wide-ranging exploration of the ideas behind the founding of the MIT Schwarzman College of Computing and the frontiers it intends to reach. Session presenters include: Sherry Turkle, the Abby Rockefeller Mauzé Professor of the Social Studies of Science and Technology, gives a talk on rethinking friction in digital culture at the celebration, Sir Tim Berners-Lee, the 3Com Founders Professor of Engineering, speaks about his research on rebooting the World Wide Web, and Patrick H. Winston, the Ford Professor of Engineering, provides a retrospective on AI and computing at the celebration of the MIT Stephen A. Schwarzman College of Computing. The MIT Schwarzman College of Computing, made possible by a $350 million foundational gift from the chairman, CEO, and co-founder of Blackstone, marks the single largest investment in computing and AI by an American academic institution, and it will help position the United States to lead the world in preparing for the rapid evolution of computing and AI. In fields far beyond engineering and science — from political science and urban studies to anthropology and linguistics — some of today’s most exciting new research is fueled by advanced computational capabilities. The MIT Schwarzman College of Computing will create the next generation of highly trained computational thinkers and doers who can offer the world the cultural, ethical, and historical consciousness to use technology for the common good. (Learn more: https://helloworld.mit.edu/about/) Watch more videos from MIT: http://www.youtube.com/user/MITNewsOffice?sub_confirmation=1 The Massachusetts Institute of Technology is an independent, coeducational, privately endowed university in Cambridge, Massachusetts. Our mission is to advance knowledge; to educate students in science, engineering, and technology; and to tackle the most pressing problems facing the world today. We are a community of hands-on problem-solvers in love with fundamental science and eager to make the world a better place. The MIT YouTube channel features videos about all types of MIT research, including the robot cheetah, LIGO, gravitational waves, mathematics, and bombardier beetles, as well as videos on origami, time capsules, and other aspects of life and culture on the MIT campus. Our goal is to open the doors of MIT and bring the Institute to the world through video.
Types of Payment gateways and cards !! AVS , non CVV , 3d secure ( non vbv ) and much more
 
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Subscribe to our new youtube channel also : https://www.youtube.com/channel/UCNx1Gkyy9LfOxDMbcOKuV4g Like us on facebook : https://www.facebook.com/guidetohacking/ This video includes : Types of payment gateways on multiple basis that is 3d secure and 2d secure , whether AVS and non AVS , CVV and non CVV . Similarly for types of cards ( credit , debit , prepaid ) division on basis of AVS and 3d secure mainly. What is 3d secure ? how it works ? What is AVS ( address verification system ) ? how AVS works ? What is non CVV payment gateway ? About MPI ( Merchant Plug-in ) and ACS ( Access Control Server ) , about authorisation and authentication , difference between authorisation and authentication in transactions or payments , In depth working of different types of payment gateway and cards . And a lot more #payment #gateway #VBV #AVS
DEF CON 16 - Brenno J.S.A.A.F. de Winter:The Anatomy of a Subway Hack
 
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DEF CON 16 - Brenno J.S.A.A.F. de Winter:The Anatomy of a Subway Hack: Discussion This talk was given by Brenno de Winter in place of the much talked about canceled talk : The Anatomy of a Subway Hack:Breaking Crypto RFID's and Magstripes of Ticketing Systems by the original authors: Zack Anderson,Student, MIT RJ Ryan,Student, MIT Alessandro Chiesa,Student, MIT Original Summary & Bio's: In this talk we go over weaknesses in common subway fare collection systems. We focus on the Boston T subway, and show how we reverse engineered the data on magstripe card, we present several attacks to completely break the CharlieCard, a MIFARE Classic smartcard used in many subways around the world, and we discuss physical security problems. We will discuss practical brute force attacks using FPGAs and how to use software-radio to read RFID cards. We survey 'human factors' that lead to weaknesses in the system, and we present a novel new method of hacking WiFi: WARCARTING. We will release several open source tools we wrote in the process of researching these attacks. With live demos, we will demonstrate how we broke these systems. Zack Anderson is studying electrical engineering and computer science at MIT. He is an avid hardware and software hacker, and has built several systems such as an autonomous vehicle for the DARPA Grand Challenge. Zack is especially interested in the security of embedded systems and wireless communications. He has experience building and breaking CDMA cellular systems and RFID. Zack has worked for a security/intelligence firm, and has multiple patents pending. He enjoys building systems as much as he enjoys breaking them. RJ Ryan is researcher at MIT. His longtime passion for security has resulted in a number of hacks and projects, including a steganographic cryptography protocol. RJ works on a number of technical projects ranging from computer security to operating systems, distributed computation, compilers, and computer graphics. He enjoys learning how things work, and how to make things work for him. Alessandro Chiesa is a Junior at MIT double majoring in Theoretical Mathematics and in Electrical Engineering and Computer Science. Born and raised in Varese,Italy, he came to MIT with interests in computational algebraic geometry, machine learning, cryptography, and systems security. He has authored papers such as "Generalizing Regev's Cryptosystem", which proposes a new cryptosystem based on shortest vector problems in cyclotomic fields. He is currently working with Oracle's Database Security group. For copies of the slides and additional materials please see the DEF CON 16 Archive here: https://defcon.org/html/links/dc-archives/dc-16-archive.html
Views: 421 DEFCONConference
Zilliqa Keynote: Next-Gen Scalable Blockchain
 
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Zilliqa is a new public blockchain developed by a group of computer scientists, engineers, and financial service veterans. It brings the theory of sharding to practice with its novel protocol that increases transaction rates as its network expands. The platform is tailored towards enabling secure data-driven decentralized apps, designed to meet the scaling requirements of applications in areas such as financial services and digital marketing. Zilliqa has been under research and development for two years. It has powered several ground-breaking deployments commercially to date. Join our slack channel at https://invite.zilliqa.com Website: https://www.zilliqa.com/ Twitter: https://twitter.com/zilliqa
Jan 13 Christopher Portmann. "Causal Boxes: Quantum Information-Processing Systems.." (Part 1)
 
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QIP 2016, Banff, 10-16 January 2016 Date: Jan 13 2016 Title: Causal Boxes: Quantum Information-Processing Systems Closed under Composition Authors: Christopher Portmann, Christian Matt, Ueli Maurer, Renato Renner and Björn Tackmann Complex information-processing systems, for example quantum circuits, cryptographic protocols, or multi-player games, are naturally described as networks composed of more basic information-processing systems. A modular analysis of such systems requires a mathematical model of systems that is closed under composition, i.e., a network of these objects is again an object of the same type. We propose such a model and call the corresponding systems causal boxes. Causal boxes capture superpositions of causal structures, e.g., messages sent by a causal box A can be in a superposition of different orders or in a superposition of being sent to box B and box C. Furthermore, causal boxes can model systems whose behavior depends on time. By instantiating the Abstract Cryptography framework with causal boxes, we obtain the first composable security framework that can handle arbitrary quantum protocols and relativistic protocols. http://arxiv.org/abs/1512.02240
Views: 84 Iqst Ucalgary
Types of Protocols ||What is INTERNET PROTOCOL ||Telugu..
 
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Types of Protocols part 1.|| What is Internet protocol in telugu... . ~~~~~~~~~~~~~~~~~~~~~~ In this video i clearly explained about Internet protocol.. What is a Protocol ---------------- A protocol is a set of rules to communicate over a network or Internet (mainly) Types of Protocols ------------------- There are many protocols used for communication over the Internet. Some of them are here.. 1:ip 2:Tcp 3:Ftp 4:Udp 5Tcp/ip 6:Ethernet.. Etc... These are commonly used protocols ~~~~~~~~~~~~~~~~~~~~~~~~~~~ Internet Protocol --------------------------- ....................... Internet Protocol (IP). Overview -The IP protocol provides two main functionality: →Decomposition of the initial information flow into packets of standardized size, and reassembling at the destination. →Routing of a packet through successive networks, from the source machine to the destination identified by its IP address .-Transmitted packets are not guaranteed to be delivered (datagram protocol). -The IP protocol does not request for connection (connectionless) before sending data and does not make any error detection. Functions-Decompose the initial data (to be sent) into datagrams. -Each datagram will have a header including, the IP address and the port number of the destination.- Datagrams are then sent to selected gateways, e.g IP routers, connected at the same time to the local network and to an IP service provider network. What is a protocol -video in telugu :https://youtu.be/E2Y-ClNbn4Q What about a thumbs up 👍 If u learned something through this video Please hit a like 👍😎 If u want more to learn Consider Subscribing Make sure to hit the bell 🔔 ———————————————————————— My social links Make a personal contact with me Twitter : https://mobile.twitter.com/Ceh7019 Fb page: https://m.facebook.com/deepakceh/?ref=bookmarks ————————————————————————
Views: 2287 Deepak deepu
Quantum Computing for Computer Scientists
 
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This talk discards hand-wavy pop-science metaphors and answers a simple question: from a computer science perspective, how can a quantum computer outperform a classical computer? Attendees will learn the following: - Representing computation with basic linear algebra (matrices and vectors) - The computational workings of qbits, superposition, and quantum logic gates - Solving the Deutsch oracle problem: the simplest problem where a quantum computer outperforms classical methods - Bonus topics: quantum entanglement and teleportation The talk concludes with a live demonstration of quantum entanglement on a real-world quantum computer, and a demo of the Deutsch oracle problem implemented in Q# with the Microsoft Quantum Development Kit. This talk assumes no prerequisite knowledge, although comfort with basic linear algebra (matrices, vectors, matrix multiplication) will ease understanding. See more at https://www.microsoft.com/en-us/research/video/quantum-computing-computer-scientists/
Views: 173061 Microsoft Research
Quantum Computing - The Qubit Technology Revolution
 
01:03:48
One of the strangest features of quantum mechanics is also potentially its most useful: entanglement. By harnessing the ability for two particles to be intimately intertwined across great distances, researchers are working to create technologies that even Einstein could not imagine, from quantum computers that can run millions of calculations in parallel, to new forms of cryptography that may be impossible to crack. Join us as we explore the coming age of quantum technology, which promises to bring with it a far deeper understanding of fundamental physics. PARTICIPANTS: Jerry Chow, Julia Kempe, Seth Lloyd, Kathy-Anne Soderberg MODERATOR: George Musser Original program date: JUNE 3, 2017 FIND OUT MORE ABOUT THE PROGRAM AND PARTICIPANTS: https://www.worldsciencefestival.com/programs/the-qubit-revolution/ This program is part of the Big Ideas Series, made possible with support from the John Templeton Foundation. SUBSCRIBE to our YouTube Channel for all the latest from WSF VISIT our Website: http://www.worldsciencefestival.com/ LIKE us on Facebook: https://www.facebook.com/worldscience... FOLLOW us on Twitter: https://twitter.com/WorldSciFest Introduction of Participants 00:25 Program Begins: Quantum mechanics, weird or unfamiliar? 01:38 How much power is 20 Qubit's? 10:28 What are the pros and cons of Superconducting quantum computing? 25:55 The factorization problem 40:01 Is there a relationship between quantum computing and machine learning? 48:31 Q & A 54:17 This program was filmed live at the 2017 World Science Festival and edited for YouTube.
Views: 43135 World Science Festival
USENIX Security '17 - MCMix: Anonymous Messaging via Secure Multiparty Computation
 
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Nikolaos Alexopoulos, TU Darmstadt; Aggelos Kiayias, University of Edinburgh; Riivo Talviste, Cybernetica AS; Thomas Zacharias, University of Edinburgh We present MCMix, an anonymous messaging system that completely hides communication metadata and can scale in the order of hundreds of thousands of users. Our approach is to isolate two suitable functionalities, called dialing and conversation, that when used in succession, realize anonymous messaging. With this as a starting point, we apply secure multiparty computation (“MC” or MPC) and proceed to realize them. We then present an implementation using Sharemind, a prevalent MPC system. Our implementation is competitive in terms of latency with previous messaging systems that only offer weaker privacy guarantees. Our solution can be instantiated in a variety of different ways with different MPC implementations, overall illustrating how MPC is a viable and competitive alternative to mix-nets and DC-nets for anonymous communication. View the full program: https://www.usenix.org/sec17/program
Views: 291 USENIX