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The history behind public key cryptography & the Diffie-Hellman key exchange algorithm. We also have a video on RSA here: https://www.youtube.com/watch?v=wXB-V_Keiu8
Views: 640276 Art of the Problem

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This is a segment of this full video: https://www.youtube.com/watch?v=YEBfamv-_do Diffie-Hellman key exchange was one of the earliest practical implementations of key exchange within the field of cryptography. It relies on the discrete logarithm problem. This test clip will be part of the final chapter of Gambling with Secrets!
Views: 452009 Art of the Problem

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How does public-key cryptography work? What is a private key and a public key? Why is asymmetric encryption different from symmetric encryption? I'll explain all of these in plain English! 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be 👍🏻 Like my Facebook page: https://www.facebook.com/savjee

04:56
How does full-disk encryption keep your data safe, and what are its limitations? Thanks to Braintree for supporting our channel. To learn more, and for your first \$50,000 in transactions fee-free, go to http://www.braintreepayments.com/techquickie Follow: http://twitter.com/linustech Join the community: http://linustechtips.com License for image used in this video: https://creativecommons.org/licenses/by/3.0/legalcode
Views: 267154 Techquickie

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Text Encryption Approach with Color Cryptography is a security application where you can encrypt your message into color blocks image. This application is helpful for sending information from one place to another. Email: [email protected] Website: https://www.sdsoftwares.com Facebook: https://www.facebook.com/sdsoftsolutions

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Color Coded Cryptography Data encryption technique converts data into a unreadable format so as to protect the information from external intrusion. It is thus useful in ensuring the privacy and security of the information transferred or shared between the systems. Text compression algorithms can be used to compact the text stored in the file and reduce the size of the file. It helps to reduce the consumption of resources, such as hard disk space or transmission bandwidth. Here, we propose a color coding scheme that can be used for data encryption which represents text in the form of colored blocks by grouping together binary bits and assigning them colors along with Huffman encoding scheme which is used for lossless text compression. The tandem of the above helps provide a solution to both of the problems above, as illustrated under.
Views: 397 1 Crore Projects

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TURN ON ANNOTATIONS OR SUBTITLES TO MAXIMIZE YOUR VIEWING EXPERIENCE! Here is my application for the Science Ambassador Scholarship! My name is Olga Andreeva, and I am planning on majoring in computer science. Cryptography is what holds our world together: it prevents secret information like credit card and social security numbers from being released to the public, allowing people to do their business online securely without the fear of identity theft. It gives us a way to communicate around the world with confidence. For my topic, I picked the Diffie-Hellman key exchange, a way for two people to generate a private key that hackers can't access. I demonstrated this by mixing paint colors. Hope you enjoy :)
Views: 2064 olgatron9000

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How do we exchange a secret key in the clear? Spoiler: We don't - Dr Mike Pound shows us exactly what happens. Mathematics bit: https://youtu.be/Yjrfm_oRO0w Computing Limit: https://youtu.be/jv2H9fp9dT8 https://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: https://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 240991 Computerphile

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SUPPORT CR on PATREON: http://bit.ly/2qBHcvf The universe is a pretty mesmerizing place. From all of the natural wonders here on earth to the Tesla roadster flying through our galaxy, there's certainly not a lack of wonder surrounding us. All this amazement naturally leads us to one prominent question, "what color is it?" Okay, well, maybe that's just me, but a group of researchers has solidly confirmed what color the universe is. Are you ready for it? It's beige. But not just any beige, the color of the universe is named "Cosmic Latte". A team of astronomers from Johns Hopkins University gave the universe's color that name in 2002 after running a series of tests collecting massive amounts of light samples. Initially, in 2001, the researchers thought that the universe was a slightly less attractive greenish white, but in 2002, they issued a correction claiming that the light from 200,000 studied galaxies averaged together comes out to a beige-ish white. And, if you were wondering what the hex triplet value for this "beige-ish white" is, it's #FFF8E7. All images and videos courtesy of the creative commons or used in accordance with fair use laws.
Views: 3989 Concerning Reality

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There are lots of different ways to encrypt a message, from early, simple ciphers to the famous Enigma machine. But it’s tough to make a code truly unbreakable. Hosted by: Michael Aranda ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Justin Ove, John Szymakowski, Fatima Iqbal, Justin Lentz, David Campos, and Chris Peters. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow Or help support us by becoming our patron on Patreon: https://www.patreon.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow Sources: http://www.vectorsite.net/ttcode_04.html#m3 http://www.simonsingh.net/The_Black_Chamber/crackingprinciple.html http://book.itep.ru/depository/crypto/Cryptography_history.pdf http://www.cs.trincoll.edu/~crypto/historical/gronsfeld.html http://www.sans.org/reading-room/whitepapers/vpns/history-encryption-730 http://ftp.stmarys-ca.edu/jsauerbe/m10s11/chapter5.pdf http://www.turing.org.uk/scrapbook/ww2.html http://enigma.louisedade.co.uk/howitworks.html http://www.codesandciphers.org.uk/enigma/example1.htm http://www.pbs.org/wgbh/nova/military/how-enigma-works.html http://www.cs.miami.edu/~burt/learning/Csc609.051/notes/02.html
Views: 823049 SciShow

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Encryption & decryption technology protects your e-mails, banking transactions, and even those questionable Etsy purchases. So how does it work, exactly? Hey, Mashable Explains is back! We've got new episodes coming to you every Thursday, so make sure to subscribe! http://on.mash.to/subscribe Sorry, you’re addicted to the Internet https://www.youtube.com/watch?v=NpluiONwJLg Why do we love Snapchat so much? https://www.youtube.com/watch?v=rZln9XNTOtw MASHABLE ON YOUTUBE Subscribe to Mashable: http://on.mash.to/subscribe Mashable Explains Playlist: https://www.youtube.com/playlist?list=PLSKUhDnoJjYn0TV9V84C4Wr2DjKPc492c MASHABLE ACROSS THE WEB Mashable.com: http://on.mash.to/1hCcRpl Facebook: http://on.mash.to/1KkCTIP Twitter: http://on.mash.to/1Udp1kz Tumblr: http://on.mash.to/1NBBijY Instagram: http://on.mash.to/1U6D40z Google+: http://on.mash.to/1i27L5R Mashable is a leading global media company that informs, inspires and entertains the digital generation.
Views: 114860 Mashable

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Views: 231258 CrashCourse

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RSA Encryption - How & why it works. Euclid, Euler, Cocks and much more Link to time complexity graph used in the video: https://www.khanacademy.org/labs/explorations/time-complexity Newer animated version: https://www.khanacademy.org/math/applied-math/cryptography/modern-crypt/p/time-complexity-exploration
Views: 58054 Art of the Problem

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Views: 157678 Victor Dozal

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In today's world data security during transmission is very important. Data Security refers to the protection of data from unauthorized users in a way such that confidentiality, authentication, integrity, non repudiation are given importance. This can be achieved by using cryptography. This project provides a technique to encrypt the data using a key involving Armstrong numbers and colors as the password. The key is passed between the sender and the receiver by using Daffier Hellman key exchange algorithm. A set of Keys are used to provide secure data transmission with the Colors acting as vital security element thereby providing authentication. To make the Authentication between two intended users along with the security, server is used. With the help of server, both sender and receiver will get validated. Then actual data could be transmitted by any of the means. Central server system is used to provide secure intended Authentication between users. Depending on the encryption mechanism used, the same key might be used for both encryption and decryption, while for other mechanisms, the keys used for encryption and decryption might be different.

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This video explains why key exchange is an issue in cryptography and introduces Diffie-Hellman's solution to this problem. NB : This video was created as a part of an assignment. It is heavily influenced from another youtube video which you can find here https://www.youtube.com/watch?v=YEBfamv-_do
Views: 50380 Bishal Sapkota

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Cryptography is the base for most of our communications online. It's what keeps your messages and your activities private. In this video we explain how cryptography encodes your message using a key and exactly how this key works.
Views: 10027 MinuteVideos

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Just what are elliptic curves and why use a graph shape in cryptography? Dr Mike Pound explains. Mike's myriad Diffie-Hellman videos: https://www.youtube.com/playlist?list=PLzH6n4zXuckpoaxDKOOV26yhgoY2S-xYg https://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: https://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 177506 Computerphile

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This clip from the 2008 Royal Institution Christmas Lectures shows a simple demonstration of how two people can agree on a secret key, even though all of their communications are carried out in public. In the electronic world, secret key exchange allows computers to communicate securely, and is used, for example, when you give your credit card information to an on-line shop. You can watch the 2008 Royal Institution Christmas Lectures in full at: http://research.microsoft.com/~cmbishop or by visiting the Royal Institution web site. There is a dedicated web site to accompany the 2008 Christmas Lectures, with ten interactive games as well as downloadable PDF instructions for experiments which can be conducted at home or at school: http://www.rigb.org/christmaslectures08
Views: 142017 ProfChrisBishop

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Views: 15036 The Royal Institution

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Views: 496209 itfreetraining

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rgb & hex color explained Powerpoint overview of RGB and Hexadecimal color for the web.
Views: 16528 Richard Homa

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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Srinivas Devadas In this lecture, Professor Devadas continues with cryptography, introducing encryption methods. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 17912 MIT OpenCourseWare

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Chaos-based fast colour image encryption scheme with true random number keys from environmental noise To get this project in ONLINE or through TRAINING Sessions, Contact: JP INFOTECH, Old No.31, New No.86, 1st Floor, 1st Avenue, Ashok Pillar, Chennai -83.Landmark: Next to Kotak Mahendra Bank. Pondicherry Office: JP INFOTECH, #37, Kamaraj Salai,Thattanchavady, Puducherry -9.Landmark: Next to VVP Nagar Arch. Mobile: (0) 9952649690, Email: [email protected], web: http://www.jpinfotech.org The paper proposes a chaos-based colour image encryption scheme, the highlight is that the randomly sampled noise signal is applied to serve as the initial values of a chaotic system. The 256-bit hash value of noise is transformed into the one-time initial values of the Liu system. The sequences generated by Liu system are subjected to three batteries of TestU01. Exclusive OR, the only operation, is applied to diffuse the pixels, and some measures are taken to speed up the encryption process. Finally, some statistical tests are performed to assess reliability and efficiency of the proposed cryptosystem in terms of time complexity and security.
Views: 828 jpinfotechprojects

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A picture from Color Squared, colored using the halftone dots method. I used a Blick dual tip marker — brush tip for all the dots except the smallest, which were made with the corner point of the chisel tip. This method concept can also be done with stamps, different sized circles or shapes carved from pencil erasers (it's explained in the book). The book includes tons of coloring methods, using up to six colors, or just one single color of marker or pen. Plus, you can always color the background however you want! I haven't done anything to the background yet here. Color Squared by Lee Meredith is published by Clarkson Potter, find info here: http://www.leemeredith.com/colorsquared Music is by Pete Bejarano.
Views: 408 Lee Meredith

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Easy explanation of "public key encryption". Instead of the usual terms of "public key" and "private key" this tutorial uses "lock" and "key". ================================================== If you want to start protecting you email: get free Privacy Everywhere Beta, http://www.privacyeverywhere.net/
Views: 211545 Veet Vivarto

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Views: 48436 DEFCONConference

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Textual passwords are the most common method used for authentication. But textual passwords are vulnerable to eves dropping, dictionary attacks, social engineering and shoulder surfing. Graphical passwords are introduced as alternative techniques to textual passwords. Most of the graphical schemes are vulnerable to shoulder surfing. To address this problem, text can be combined with images or colors to generate session passwords for authentication. Session passwords can be used only once and every time a new password is generated. In this paper, two techniques are proposed to generate session passwords using text and colours which are resistant to shoulder surfing. These methods are suitable for Personal Digital Assistants.
Views: 1114 Final Year Solutions

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"If you can explain this using common sense and logic, do let me know, because there is a Nobel Prize for you.." Professor Jim Al-Khalili explains the experiment that reveals the "central mystery of quantum mechanics" - the double slit experiment. Watch the full lecture here: http://www.youtube.com/watch?v=wwgQVZju1ZM Sometimes called the "two-slit" or "Young's" experiment, it demonstrates that matter and energy can display the characteristics of both waves and particles, establishing the principle known as wave-particle duality. Furthermore, it questions the role of the observer in the outcome of events and demonstrates the fundamental limitation of an observer to predict experimental results. For this reason, Richard Feynman called it "a phenomenon which is impossible ... to explain in any classical way, and which has in it the heart of quantum mechanics. In reality, it contains the only mystery [of quantum mechanics]," (see more at http://en.wikipedia.org/wiki/Double-slit_experiment). The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-policy Subscribe for the latest science videos: http://bit.ly/RiNewsletter
Views: 1580232 The Royal Institution

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What is STEREOGRAPHER? What does STEREOGRAPHER mean? STEREOGRAPHER meaning - STEREOGRAPHER pronunciation - STEREOGRAPHER definition - STEREOGRAPHER explanation - How to pronounce STEREOGRAPHER? Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ A "stereographer" is professional in the field of stereoscopy and visual effects using the art and techniques of stereo photography, 3D photography, or stereoscopic 3D film to create a visual perception of a 3-dimensional image from a flat surface. The role of a stereographer in modern 3D movies can be summarized as: Being part of the film (movie) crew, ideally at the script and screen play revision phase for the best 3D experience. If not possible, then at the very least at the Camera and Scene blocking stage Creating a depth script for “3D mood” treatment of the movie. This is a creative process with the Director, the technical conclusions of which are shared with the DoP for final recommendations. For modern Digital movie Projection, also coordinating to a certain extent with Set and Costume Designers to creatively suggest minimizing of high contrast colors that may cause Stereo cross-talk On-location co-ordination with DoP to assist in Stereo framing and implementation of the Depth Script. A good Stereographer knows how to augment but NOT restrict the Cinematographer. Suggest cutaways, Cat-in-the-window shots and other time permitting takes to assist the editor with options (footage) to maintain proper depth cuts, during post production. Being present at all post production sessions to recommend tricks of the trade for unavoidable errors that need to be corrected, and final tweaking of stereo for comfortable viewing.
Views: 270 The Audiopedia

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This is my primitive explanation of how the Diffie-Hellman secret key exchange works. I did it with numbers rather than paint colors just for a different way of looking at it than most other explanations. I hope this helps you understand how this "magic" works.
Views: 51 A Guy

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Views: 1086186 SciShow

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A visual cryptography scheme (VCS) is a kind of secret sharing scheme which allows the encoding of a secret image into shares distributed to participants. The beauty of such a scheme is that a set of qualified participants is able to recover the secret image without any cryptographic knowledge and computation devices. An extended visual cryptography scheme (EVCS) is a kind of VCS which consists of meaningful shares (compared to the random shares of traditional VCS). In this paper, we propose a construction of EVCS which is realized by embedding random shares into meaningful covering shares, and we call it the embedded EVCS. Experimental results compare some of the well-known EVCSs proposed in recent years systematically, and show that the proposed embedded EVCS has competitive visual quality compared with many of the well-known EVCSs in the literature. In addition, it has many specific advantages against these well-known EVCSs, respectively.
Views: 817 Zit Campus

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Views: 678 Kirti Dhiman

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Follow Our Websites & Official Pages to stay updated! http://wabstalk.com/ http://wabstalkinstitute.com/ https://www.instagram.com/wabstalk/ https://www.facebook.com/wabstalkinst... https://twitter.com/GetSmartEnglish Become a phenomenal speaker with Wabs Talk(Moti Nagar)! Join our 'English and public speaking course'! Visit the link for details: http://wabstalkinstitute.com/ or http://wabstalk.com
Views: 187 WabsTalk

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For more information visit: http://bit.ly/28C3_information To download the video visit: http://bit.ly/28C3_videos Playlist 28C3: http://bit.ly/28C3_playlist Speakers: Jean-Jacques Quisquater | Renaud Devaliere RMS Olympic, RMS Titanic, HMHS Britannic vs Discrete Logarithm, Integer factorization, Conjectured hard problems The lessons and best practices of the titanic will be extracted. Are we ready? This will be a co-presentation (Jean-Jacques Quisquater / David Samyde) and occasional friendly exchange, with point and counter-point of different contrasting views on the impact of solving integer factorization and some other difficult problem in cryptography. The idea is to perform a provocative comparison between the 'unbreakable' RSA algorithm and the unsinkable Titanic. Receiving his RSA Conference Lifetime Achievement Award, Rivest said that it has not been demonstrated mathematically that factorization into primes is difficult. So "Factoring could turn out to be easy," and according to him "maybe someone here will find the method". Since 1994 and Shor's algorithm, the danger of quantum computer is known: breaking RSA in polynomial time. Factoring large numbers is conjectured to be computationally infeasible on classic non quantum computers. No efficient algorithm is known and the research in the last 30 years did not show enormous progress. Iceberg existence is predicted but not shown yet. According to Rivest a variety of alternative schemes have been developed in the decades since RSA was published, and a new system could probably be adopted quickly. This relies on solving factorization only, but several other cases can be considered, in some of them the action to replace RSA with a new algorithm could require more work than initially planned (solution to discrete logarithm). Managing the risk and the threat of the resolution of any major problem used in cryptography is crucial. This presentation challenges the conventional thinking using lessons learned from history.
Views: 925 Christiaan008

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Zeeba TV (http://zeeba.tv) is part of the River Valley group of Companies. http://www.rivervalleytechnologies.com/
Views: 196 rivervalleytv

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This tutorial will teach you how to encrypt and decrypt messages using the Caesar Cipher.-- Created using PowToon -- Free sign up at http://www.powtoon.com/ . Make your own animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video. PowToon's animation templates help you create animated presentations and animated explainer videos from scratch. Anyone can produce awesome animations quickly with PowToon, without the cost or hassle other professional animation services require.
Views: 152576 Lacey Wright

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Views: 34 nighty candyFAN

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Apple's T2 Chip has now made its way into the MacBook Pro, bringing various security, performance, and usability improvements. We explain everything it does and what it all means for you! Get \$100 off all 2018 15" MacBook Pros and \$75 off all 2018 13" Touch Bars with coupon code APINSIDER by using this link: http://www.prc.guide/ny7ffMc (LIMITED TIME OFFER) Price Comparison Guides: 2018 13" MacBook Pro with Touch Bar - http://www.prc.guide/zZ9lv 2018 15" MacBook Pro with Touch Bar - http://www.prc.guide/jixz4mkJ -- Our video gear: https://kit.com/AppleInsider/video-production
Views: 58286 AppleInsider

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This video explains to you how PKI works to create a secure environment.
Views: 91603 SecureMetric

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Views: 16 Fact Sect

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Hey Guys Follow us on :- https://www.instagram.com/earthentertainmentexclusive/ Short Film . Earth Choreography BY Rahul Aryan Song- Kalesh Song - Kalesh Singer - Millind Gaba, Mika Singh Lyrics - Millind Gaba Music - Music MG Mixed & Mastered By B Sanj Video Editor - Rahul Aryan Choreographer - Rahul Aryan Music Label - T-Series Audio Credits. Video By - A Film By Rahul Aryan Video Credits Director/ Producer/Videography / Editor - Rahul Aryan Asst.Director - Priyanka Mathur Original Song Credits -T-Series Follow us on :- YouTube :- https://www.youtube.com/channel/UC4Oe... Instagram :-https://www.instagram.com/earthentert... Facebook :- https://www.facebook.com/Earth-Entert... Twitter :- https://twitter.com/EarthEntertainm?l... #Kalesh #MillindGaba #MikaSingh Don't forget to Like, Subscribe and Share!!!!!!!!!!!!!!!
Views: 16475843 Earth

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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: 1385 Udacity

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For information on IOTA visit: http://iota.org For information on Qubic visit: http://qubic.iota.org Donations: » IOTA: CQZRWLSXPXNPUTIKNFSONZFTB9LURKOENTGGDLVTLAPGBZHV9CFOVWJ9YYBEBIJ9GFRDJJGVQNL9AFTZXKOXFLXD9B You can find IOTA here: https://www.binance.com/?ref=10795308 Background Music: Colors of light & Electro pop Nr5 - Epidemic Sound
Views: 12717 Everything Tangle

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(Sous-titres en français bientôt disponibles) Amid today's debate on electronic surveillance and the ongoing Arab Spring protests, this young 22 year old Montreal hacktivist founded Cryptocat, a free, accessible, and open source encrypted chat application. His mission: make private communication on the web available to all. Dans le contexte du printemps arabe et des enjeux de surveillance électronique, ce jeune cybertactiviste montréalais a fondé à l'âge 22 ans Cryptocat: un logiciel de conversation protégé par cryptographie simple à utiliser, gratuit et à code source ouvert. Sa mission: rendre accessible à tous la communication privée sur le web. https://twitter.com/kaepora https://crypto.cat/ For more information, please visit http://tedmontreal.com/ Introduction motion animation by: http://www.departement.ca/ In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)
Views: 12193 TEDx Talks

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Every Video is listed at ncbookz.com http://www.ncbookz.com All comments approved, that respect others! http://www.ncbookz.com http://ncbookz.com/chat http://ncbookz.com/news http://ncbookz.blogspot.com/ http://ncbookz.com/donate.html Truther Camps video https://www.youtube.com/watch?v=a9NU3IAXwLI Cube Hive 666 video https://www.youtube.com/watch?v=XLY90kfG7ck Want Spiritual Freedom? Read Below: Walking in the spirit is not by law, or perfecting your flesh, but walking in truth and love. Do not let anyone bring you back under laws and rules which are earthly and fleshly. The letter of the law brings death, but the spirit brings life and peace. What are the true works of God you might ask then? Here is your answer.......... John 6:29 Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent.
Views: 167 ncbookz.com llc

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