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
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
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
Views: 249171 Simply Explained - Savjee
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
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
Views: 115 SD Softwares Solutions
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
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
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
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
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
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
Today we’re going to talk about how to keep information secret, and this isn’t a new goal. From as early as Julius Caesar’s Caesar cipher to Mary, Queen of Scots, encrypted messages to kill Queen Elizabeth in 1587, theres has long been a need to encrypt and decrypt private correspondence. This proved especially critical during World War II as Allan Turing and his team at Bletchley Park attempted to decrypt messages from Nazi Enigma machines, and this need has only grown as more and more information sensitive tasks are completed on our computers. So today, we’re going to walk you through some common encryption techniques such as the Advanced Encryption Standard (AES), Diffie-Hellman Key Exchange, and RSA which are employed to keep your information safe, private, and secure. Note: In October of 2017, researchers released a viable hack against WPA2, known as KRACK Attack, which uses AES to ensure secure communication between computers and network routers. The problem isn't with AES, which is provably secure, but with the communication protocol between router and computer. In order to set up secure communication, the computer and router have to agree through what's called a "handshake". If this handshake is interrupted in just the right way, an attacker can cause the handshake to fault to an insecure state and reveal critical information which makes the connection insecure. As is often the case with these situations, the problem is with an implementation, not the secure algorithm itself. Our friends over at Computerphile have a great video on the topic: https://www.youtube.com/watch?v=mYtvjijATa4 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: 231258 CrashCourse
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
Thanks for watching! I'd love it if you could support me by subscribing and sharing it with your friends. Thanks!
Views: 157678 Victor Dozal
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.
Views: 205 SKIVE PROJECTS CHENNAI
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
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
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
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
What does the padlock icon on your internet browser mean and why is encryption important? In this clip from 2008 CHRISTMAS LECTURES "Hi-tech trek", Chris Bishop uses coloured water to demonstrate how information is transferred on the internet. Subscribe for regular science videos: http://bit.ly/RiSubscRibe This video is from our 2017 advent calendar. Watch the full series here: https://www.youtube.com/playlist?list=PLbnrZHfNEDZyvS5Cx-aRTX-Y8IBJCNmYm Or watch the full lecture here: http://www.rigb.org/christmas-lectures/watch/2008/hi-tech-trek/untangling-the-web?utm_source=youtube&utm_medium=social&utm_campaign=2017_advent&utm_content=description The Royal Institution 2017 advent calendar ‘Transmissions Through Time’ looks through the lens of CHRISTMAS LECTURES past to share the best demonstrations around the science of communication. From Attenborough and Sagan to Woollard and Fong, we revisit old favourites and find new gems to bring you a little gift of science every day in the lead up to Christmas. http://bit.ly/RiAdvent17 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: 15036 The Royal Institution
Modern day encryption is performed in two different ways. Check out http://YouTube.com/ITFreeTraining or http://itfreetraining.com for more of our always free training videos. Using the same key or using a pair of keys called the public and private keys. This video looks at how these systems work and how they can be used together to perform encryption. Download the PDF handout http://itfreetraining.com/Handouts/Ce... Encryption Types Encryption is the process of scrambling data so it cannot be read without a decryption key. Encryption prevents data being read by a 3rd party if it is intercepted by a 3rd party. The two encryption methods that are used today are symmetric and public key encryption. Symmetric Key Symmetric key encryption uses the same key to encrypt data as decrypt data. This is generally quite fast when compared with public key encryption. In order to protect the data, the key needs to be secured. If a 3rd party was able to gain access to the key, they could decrypt any data that was encrypt with that data. For this reason, a secure channel is required to transfer the key if you need to transfer data between two points. For example, if you encrypted data on a CD and mail it to another party, the key must also be transferred to the second party so that they can decrypt the data. This is often done using e-mail or the telephone. In a lot of cases, sending the data using one method and the key using another method is enough to protect the data as an attacker would need to get both in order to decrypt the data. Public Key Encryption This method of encryption uses two keys. One key is used to encrypt data and the other key is used to decrypt data. The advantage of this is that the public key can be downloaded by anyone. Anyone with the public key can encrypt data that can only be decrypted using a private key. This means the public key does not need to be secured. The private key does need to be keep in a safe place. The advantage of using such a system is the private key is not required by the other party to perform encryption. Since the private key does not need to be transferred to the second party there is no risk of the private key being intercepted by a 3rd party. Public Key encryption is slower when compared with symmetric key so it is not always suitable for every application. The math used is complex but to put it simply it uses the modulus or remainder operator. For example, if you wanted to solve X mod 5 = 2, the possible solutions would be 2, 7, 12 and so on. The private key provides additional information which allows the problem to be solved easily. The math is more complex and uses much larger numbers than this but basically public and private key encryption rely on the modulus operator to work. Combing The Two There are two reasons you want to combine the two. The first is that often communication will be broken into two steps. Key exchange and data exchange. For key exchange, to protect the key used in data exchange it is often encrypted using public key encryption. Although slower than symmetric key encryption, this method ensures the key cannot accessed by a 3rd party while being transferred. Since the key has been transferred using a secure channel, a symmetric key can be used for data exchange. In some cases, data exchange may be done using public key encryption. If this is the case, often the data exchange will be done using a small key size to reduce the processing time. The second reason that both may be used is when a symmetric key is used and the key needs to be provided to multiple users. For example, if you are using encryption file system (EFS) this allows multiple users to access the same file, which includes recovery users. In order to make this possible, multiple copies of the same key are stored in the file and protected from being read by encrypting it with the public key of each user that requires access. References "Public-key cryptography" http://en.wikipedia.org/wiki/Public-k... "Encryption" http://en.wikipedia.org/wiki/Encryption
Views: 496209 itfreetraining
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
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
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
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
Hacking is hard. It takes passion, dedication, and an unwavering attention to detail. Hacking requires a breadth of knowledge spread across many domains. We need to have experience with different platforms, operating systems, software packages, tools, programming languages, and technology trends. Being overly deficient in any one of these areas can add hours to our hack, or even worse, bring us total failure. And while all of these things are important for a well-rounded hacker, one of the key areas that is often overlooked is cryptography. In an era dominated by security breaches, an understanding of encryption and hashing algorithms provides a tremendous advantage. We can better hone our attack vectors, especially when looking for security holes. A few years ago I released the first Blu-Ray device key, AA856A1BA814AB99FFDEBA6AEFBE1C04, by exploiting a vulnerability in an implementation of the AACS protocol. As hacks go, it was a simple one. But it was the knowledge of crypto that made it all possible. This presentation is an overview of the most common crypto routines helpful to hackers. We'll review the strengths and weaknesses of each algorithm, which ones to embrace, and which ones to avoid. You'll get C++ code examples, high-level wrapper classes, and an open-source library that implements all the algorithms. We'll even talk about creative ways to merge algorithms to further increase entropy and key strength. If you've ever wanted to learn how crypto can give you an advantage as a hacker, then this talk is for you. With this information you'll be able to maximize your hacks and better protect your personal data. Speaker Bio: Eijah is the founder of demonsaw, a secure and anonymous content sharing platform, and a Senior Programmer at a world-renowned game development studio. He has over 15 years of software development and IT Security experience. His career has covered a broad range of Internet and mid-range technologies, core security, and system architecture. Eijah has been a faculty member at multiple colleges, has spoken about security and development at conferences, and holds a master’s degree in Computer Science. Eijah is an active member of the hacking community and is an avid proponent of Internet freedom.
Views: 48436 DEFCONConference
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
"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
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
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
SciShow explains how SciShow exists -- and everything else that's ever been made or used on a computer -- by exploring how transistors work together in circuits to make all computing possible. Like all kinds of science, it has its limitations, but also awesome possibilities. ---------- 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/artist/52/SciShow Or help support us by subscribing to our page on Subbable: https://subbable.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 Thanks Tank Tumblr: http://thankstank.tumblr.com Sources: http://www.mooreslaw.org/ http://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/museum-transistors-to-transformations-brochure.pdf http://www.tldp.org/HOWTO/Unix-and-Internet-Fundamentals-HOWTO/core-formats.html http://homepage.cs.uri.edu/book/binary_data/binary_data.htm https://www.youtube.com/watch?v=qm67wbB5GmI https://www.youtube.com/watch?v=cNN_tTXABUA http://www.newscientist.com/article/mg21929301.000-parallel-sparking-many-chips-make-light-work.html#.U1iQ3vmSzmc http://www.newscientist.com/article/mg20527441.600-spasers-set-to-sum-a-new-dawn-for-optical-computing.html#.U1iREfmSzmc http://www.tldp.org/HOWTO/Unix-and-Internet-Fundamentals-HOWTO/core-formats.html http://www.extremetech.com/computing/97469-is-14nm-the-end-of-the-road-for-silicon-lithography http://www.amasci.com/miscon/speed.html http://newsoffice.mit.edu/2013/computing-with-light-0704
Views: 1086186 SciShow
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
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
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
Zeeba TV (http://zeeba.tv) is part of the River Valley group of Companies. http://www.rivervalleytechnologies.com/
Views: 196 rivervalleytv
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
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
This video explains to you how PKI works to create a secure environment.
Views: 91603 SecureMetric
#FactSect #FreeCryptoTraining Dont click: https://www.youtube.com/channel/UCxOHcI93wCMVRhCnoawPDZQ?sub_confirmation=1 Hi All. I am going to be giving you a free training course on Cryptocurrency over the next few days. To ensure you don't miss out please subscribe to my channel now. crypto cryptocurrency cryptocurrency news crypto news cryptocompare cryptosporidium cryptography cryptowatch crypto prices crypto reddit crypto mining crypto market crypto wallet crypto coin crypto trader cryptozoologist cryptohopper crypto calculator cryptolocker crypto robot 365 crypto market news crypto news ripple crypto mining calculator crypto club crypto meaning crypto investment crypto cards crypto predictions crypto ico crypto genius crypto facilities crypto arbitrage crypto world evolution crypto bobby crypto hardware wallet crypto cash crypto hedge fund crypto price predictions crypto list crypto jobs cryptohub crypto bank crypto market cap chart crypto profit calculator crypto rankings cryptozombies crypto jews crypto revolution crypto mining software crypto point crypto ripple crypto graphs crypto index crypto world company crypto virus crypto india crypto security crypto valley crypto podcast crypto kirby cryptoyoda crypto key crypto index fund crypto live crypto farmer crypto scams crypto quantique crypto lark cryptoinbox crypto loans crypto software crypto wallet app crypto arbitrage bot crypto lending crypto world crypto 100 crypto logo crypto gecko crypto hard wallet crypto 365 crypto voucher crypto insider crypto news xrp crypto node crypto youtube crypto viewing cryptojack crypto group crypto 101 crypto wiki crypto robinhood crypto xrp crypto visa card crypto 5 crypto university crypto galaxy crypto xl crypto xlm crypto summit crypto rally crypto heatmap crypto kid cryptanalysis is used krypto9095 crypto unlocked crypto on the rise crypto volatility crypto outlook crypto jobs list crypto obfuscator crypto zombie youtube crypto zec crypto xp crypto social network crypto simulator crypto key stack crypto xrp news crypto world company scam crypto unlocked scam crypto jobs remote crypto soul crypto xyo crypto 365 login crypto quiz crypto 2019 conference crypto kanoon crypto 300 club review crypto quant crypto addicts review crypto jebb crypto 2020 crypto 1 crypto 10 crypto 1000x crypto 15 crypto 2017 crypto 2018 accepted papers crypto 2018 program crypto 4 corners crypto 4.0 crypto 401k crypto 7 crypto 7 day change crypto currency in nepal crypto fund ranking crypto outbreak crypto yahoo crypto zrx crypto zug crypto-6-ikmp_not_encrypted crypto360 crypto888 crypto888 login crypto 101 pdf crypto 8949 crypto bull run crypto friendly countries crypto fund research crypto kirby review crypto orbit crypto otc crypto revolution trevor noah crypto xvg crypto youtube channels crypto yuan crypto yum crypto zero crypto zone crypto-6-ikmp_mode_failure
Views: 16 Fact Sect
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
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
(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
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
We take hundreds of pictures daily. But do you understand what is a digital image? How is it the digital image captured? Do you want to learn Programming Languages in Udemy with our unique way (using animation, digital pen and actual programming)? You can use these Coupons to get the lowest price possible. PYTHON ($9.99) https://www.udemy.com/learn-programming-in-python-with-the-power-of-animation/?couponCode=YOUTUBE C++ ($9.99) https://www.udemy.com/learn-programming-in-cpp/?couponCode=YOUTUBE JAVA ($9.99) https://www.udemy.com/learn-programming-in-java/?couponCode=YOUTUBE BlogPost: http://www.philosophybehindcoding.com/digital-photo-3-minutes-programming-animated-explanations/ Image is the representation of the real world, on a computer or on paper. It started with the simple idea of capturing a moment and begins with a shape in Grayscale. Today we can capture an image that sometimes is more visually appealing than the reality. In addition, we can expand our capturing capabilities not only in a rectangle but also in a 360 degrees environment. Digital image explained So today, we will analyze how this is even possible. How Digital Image Works This is the perfect picture for this analysis. You can see that many small pictures can create the shape and color of a big one. However, these are not just random images from the internet. If we try to use random images, we will take random results; we will see something like noise that we already talked about in one of our previous videos. Digital image explained The goal is to produce an image of Mickey Mouse, so we need to use special images that each one of them has its own character, but at the same time obey a larger purpose. Here you can see that these images are different, but all of them have white as the main color. At the same time, you can see that in the boundaries of the shapes (between the red and white color for example) we have images that have both colors in the right rotation. So even in this mess with small images, our brain is trained to combine all this information and when you look at this picture from a distance you can distinguish very clearly Mickey. Digital image explained So we prove with an intuitive way that this process can work. But how does the computer communicate and what are the rules in order to make it work? What is digital image Every pixel has a number that represents a position in the Cartesian system. This Cartesian system is a little bit different. Here you can see the changes, but the main idea is the same. In addition, every point has a color. What is digital image And you can represent the same color in numerous ways. For example RGB, HIS, CMY and many more, but we will talk more about color in another video. For now, we will only analyze RGB. In this model, an image consists of three independent image planes, on each of the primary colors: Red, Green and Blue. So a color in a pixel is basically a set amount of each of the primary colors. These colors are stored in a bitmap, which is a sequence of numbers defining the color of each pixel. In a black and white image, we only need one bit, because a pixel can be either black or white. But in a color image, we need typically 24 bits to store the color value. How Digital Image Works We have many more parts of the image to talk about, like image compression, but I don’t want to make this video too long.How Digital Image Works ----------------------------------------------------------------------------------- Last Video: https://goo.gl/CBYVk9 ----------------------------------------------------------------------------------- Philosophy Behind Coding (PBC) is the perfect place for someone that now try to start a career as a programmer in general, or want to improve the algorithmic way of thinking Subscribe here ;) https://www.youtube.com/channel/UCKYJJA7nYEu6HfVwmje3YXQ/featured ----------------------------------------------------------------------------------- WebSite - Blog: www.PhilosophyBehindCoding.com ----------------------------------------------------------------------------------- Instagram: www.instagram.com/phil_coding/ ----------------------------------------------------------------------------------- Follow us on Twitter: https://twitter.com/Phil_Coding ----------------------------------------------------------------------------------- Business email: [email protected] ----------------------------------------------------------------------------------- Outro Song: Electric Joy Ride - Origin [NCS Release] https://www.youtube.com/watch?v=iScT5IfgG-Q BackGround Song: http://www.bensound.com PBC ----------------------------------------------------------------------------------- Philosophy Behind Coding (PBC) Keep Coding Guys!
Views: 673 PB Coding
Why do people supposedly see a woman in pictures sent from Mars by the Curiosity Rover? For the same reason that people see Pepe the Frog in their toast, or Jesus in a tortilla: a phenomenon known as pareidolia. Hosted by: Hank Green ---------- Messages From Subbable Subscribers: "David loves Cori. Cori loves David. Let’s get married. Okay." ~David and Cori "You are made of stars. Isn't that grand?" ~Sam Hicks "People everywhere in 12th grade would love videos to help with math!" ~Aaron Schwartz ------------ 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://onlinelibrary.wiley.com/doi/10.1002/acp.2874/abstract http://www.sciencedirect.com/science/article/pii/S0010945214000288 http://www.minddisorders.com/Py-Z/Rorschach-technique.html http://www.newsmax.com/TheWire/woman-mars-photo-ghost/2015/08/12/id/669697/ http://www.cnet.com/news/ufologists-spy-woman-female-figure-in-mars-rover-pic-nasa-rolls-eyes/ http://www.forbes.com/sites/matthewfrancis/2015/08/10/no-thats-not-a-woman-on-mars/
Views: 474841 SciShow
Some of the most intelligent people at the most highly-funded companies in the world can't seem to answer this simple question: what is the danger in creating something smarter than you? They've created AI so smart that the "deep learning" that it's outsmarting the people that made it. The reason is the "blackbox" style code that the AI is based off of—it's built solely to become smarter, and we have no way to regulate that knowledge. That might not seem like a terrible thing if you want to build superintelligence. But we've all experienced something minor going wrong, or a bug, in our current electronics. Imagine that, but in a Robojudge that can sentence you to 10 years in prison without explanation other than "I've been fed data and this is what I compute"... or a bug in the AI of a busy airport. We need regulation now before we create something we can't control. Max's book Life 3.0: Being Human in the Age of Artificial Intelligence is being heralded as one of the best books on AI, period, and is a must-read if you're interested in the subject. Read more at BigThink.com: http://bigthink.com/videos/max-tegmark-were-smart-enough-to-create-intelligent-machines-but-are-we-wise-enough Follow Big Think here: YouTube: http://goo.gl/CPTsV5 Facebook: https://www.facebook.com/BigThinkdotcom Twitter: https://twitter.com/bigthink Transcript: I’m optimistic that we can create an awesome future with technology as long as we win the race between the growing power of the tech and the growing wisdom with which we manage the tech. This is actually getting harder because of nerdy technical developments in the AI field. It used to be, when we wrote state-of-the-art AI—like for example IBM’s Deep Blue computer who defeated Gary Kasparov in chess a couple of decades ago—that all the intelligence was basically programmed in by humans who knew how to play chess and then the computer won the game just because it could think faster and remember more. But we understood the software well. Understanding what your AI system does is one of those pieces of wisdom you have to have to be able to really trust it. The reason we have so many problems today with systems getting hacked or crashing because of bugs is exactly because we didn’t understand the systems as well as we should have. Now what’s happening is fascinating, today’s biggest AI breakthroughs are a completely different kind where rather than the intelligence being largely programmed in an easy-to-understand code, you put in almost nothing except a little learning rule by which a simulated arc of neurons can take a lot of data and figure out how to get stuff done. This deep learning suddenly becomes able to do things often even better than the programmers were ever able to do. You can train a machine to play computer games with almost no hard-coded stuff at all. You don’t tell it what a game is, what the things are on the screen, or even that there is such a thing as a screen—you just feed in a bunch of data about the colors of the pixels and tell it, “Hey go ahead and maximize that number in the upper left corner,” and gradually you come back and it’s playing some game much better than I could. The challenge with this, even though it’s very powerful, this is very much “blackbox” now where, yeah it does all that great stuff—and we don’t understand how. So suppose I get sentenced to ten years in prison by a Robojudge in the future and I ask, “Why?” And I’m told, “I WAS TRAINED ON SEVEN TERABYTES OF DATA, AND THIS WAS THE DECISION,” It’s not that satisfying for me. Or suppose the machine that’s in charge of our electric power grid suddenly malfunctions and someone says, “Well, we have no idea why. We trained it on a lot of data and it worked,” that doesn’t instill the kind of trust that we want to put into systems. When you get the blue screen of death when your Windows machine crashes or the spinning wheel of doom because your Mac crashes, “annoying” is probably the main emotion we have, but “annoying” isn’t the emotion we have if it’s myself flying an airplane and it crashes, or the software controlling the nuclear arsenal of the U.S., or something like that. And as AI gets more and more out into the world we absolutely need to transform today’s packable and buggy AI systems into AI systems that we can really trust.
Views: 15576 Big Think