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Cryptography: The Science of Making and Breaking Codes
 
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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: 834751 SciShow
Cryptography Lesson #1 - Block Ciphers
 
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This tutorial video will help provide an understanding of what block ciphers are, and how they are used in the field of cryptography.
Views: 154624 Ryan Kral
Mysterious Creatures Spotted & Caught On Camera
 
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Bizarre Events That Baffled Scientists Try out ThePremium Network for free: http://goo.gl/KcAV83 Subscribe to our channel: http://goo.gl/9CwQhg For copyright matters please contact us at: [email protected] There is still much to learn about the world around us. While we would like to think that we have discovered every living thing on this planet, we have only skimmed the surface. This means that when we do see something that is truly out of this world, headlines are made and everyone gets out their cameras for a picture. Speaking of cameras, they are everywhere these days! From phones to satellite imagery to surveillance cameras, you can always get a picture of yourself if you need one! So, when you think about it, it’s easier than ever to get a picture or video or a mysterious creature. But, even with technology as advanced as it is, we can still get freaked out when we see something we’re not familiar with. These days, more creatures are being discovered than ever. No longer are they myth or legend. Instead, they are proving that they are very much as real as you and me! Our Social Media: Facebook: https://www.facebook.com/TheRichest.org Twitter: https://twitter.com/TheRichest_Com Instagram: http://instagram.com/therichest For more videos and articles visit: http://www.therichest.com/
Views: 517101 TheRichest
5 Mysterious Creatures Caught on Camera
 
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Weird creatures and monsters always fascinate us. Even if it scares the heck out of us. The more bizarre, the better. Just like these sightings caught on camera. These creatures have been the subject of myths and legends and until now have not been proven to be 100 percent real. Let’s admit it, truth is stranger than fiction. Check out these mysterious creatures caught on camera. What do you think about these creatures? It's Real Or Fake? If you like this video - please put Thumb Up button and Subscribe to our channel! - https://www.youtube.com/channel/UCH7IZhznY_65jJkiHPV48NA Original video about Chtulhu: https://www.youtube.com/watch?v=FkcDoUE8_Ec Original video about Megalodon's baby: https://www.youtube.com/watch?v=IQqoD_gJgNI&t=187s Original video about alien: https://www.youtube.com/watch?v=BaX6BK66v9A&t=2s Please contact us for any questions - [email protected] WATCH MORE VIDEOS LIKE THIS ONE HERE: 5 tricky riddles only a genius could solve vol. 3 https://www.youtube.com/watch?v=7ijtj9REQRo Most dangerous rivers and lakes in the world https://www.youtube.com/watch?v=nNCG_OwRxpw WHAT NUMBER DO YOU SEE? - 98% FAIL https://www.youtube.com/watch?v=XGr5CJF1334 5 Giant Creatures Caught on Camera https://www.youtube.com/watch?v=unLuzyy9xjA 5 Everyday Symbols You Didn’t Know The Meaning Of https://www.youtube.com/watch?v=sM77mdamnj8 5 tricky riddles only a genius could solve vol. 2 https://www.youtube.com/watch?v=VNVyUjAvJuQ 5 Hottest Places on Earth https://www.youtube.com/watch?v=WziXKTTPCiY TOP 5 FUNNY 911 CALLS https://www.youtube.com/watch?v=iY76rb4DvDQ 5 Tricky Riddles Only A GENIUS Could Solve https://www.youtube.com/watch?v=f4qla9AALFs 5 GADGETS THAT WILL GIVE YOU REAL SUPERPOWERS https://www.youtube.com/watch?v=1YE7Mdfjq8w The most flexible woman in the world https://www.youtube.com/watch?v=qX1lUSe9G_w 15 Hilarious Notes From Mom And Dad https://www.youtube.com/watch?v=0Kr5vX070Dc 5 CRIME RIDDLES YOU WILL NEVER SOLVE vol. 5 https://www.youtube.com/watch?v=11JAWm3LrCk How Safe Is Air Travel? https://www.youtube.com/watch?v=RmuVBw3yL8Y What Horror’s Scariest Stars Look Like In Real Life https://www.youtube.com/watch?v=Rzr_ci9I4Lc 5 mystery teasers! Can You Solve Them All??? https://www.youtube.com/watch?v=OxTMEC4ivtQ 5 Most Insane Waterslides In The World https://www.youtube.com/watch?v=N8CLhaymkgY 5 CRIME RIDDLES YOU WILL NEVER SOLVE vol. 4 https://www.youtube.com/watch?v=uFDw44O4fW0 What will the world be like in 100 years? https://www.youtube.com/watch?v=sE1Ncj4Ak2c Incredible Stuff pulled out of nose!!!! https://www.youtube.com/watch?v=_CiQiHFeEtE The World’s Most Stunning Eyes https://www.youtube.com/watch?v=3i8OAC1rmoI 5 Unbelievable Animals That Saved People's Lives https://www.youtube.com/watch?v=LTjHRkO7EH8 15 RIDDLES THAT WILL BLOW YOUR MIND https://www.youtube.com/watch?v=BWyqHNZnLZo 10 Sea Creatures You Didn't Know Existed https://www.youtube.com/watch?v=F852u01cmKI 10 Real Life X-Men https://www.youtube.com/watch?v=h3Z7Q2ispMk 5 TESTS TO PROVE YOUR UNIQUENESS https://www.youtube.com/watch?v=uX83uSlaxfg 10 Bizarre American Laws https://www.youtube.com/watch?v=qFGPMMZ8FgM 10 Women You Won’t Believe Exist - https://www.youtube.com/watch?v=qmJnwWB99jo 10 Most Embarrassing Fails Caught On Live TV - https://www.youtube.com/watch?v=2fgzOdbXcus 5 Horrifying Creatures Found Living Inside a Human Body - https://www.youtube.com/watch?v=iGJ2QjRxWJA 10 Of The Most Dangerous Beaches In The World - https://www.youtube.com/watch?v=wx4hkuktvJI 5 celebs who suffer from anorexia - https://www.youtube.com/watch?v=257_bRybowY 25 Things You’ve Been Doing Wrong Your Whole Life - https://www.youtube.com/watch?v=nrWzjgKe5hQ Wedding Horrors - https://www.youtube.com/watch?v=W4_kaaCNnp8 10 Pokemon That Actually Exist In Real Life - https://www.youtube.com/watch?v=0cd7Nomns5E Most Dangerous Animals https://www.youtube.com/watch?v=x0WfAJ5oBVk Most Scariest Diseases in the World https://www.youtube.com/watch?v=ovc617syCD4 FAIR USE NOTICE: This video may contain copyrighted material. Such material is made available for educational purposes only. This constitutes a 'fair use' of any such copyrighted material as provided for in Title 17 U.S.C. section 106A-117 of the U.S. Copyright Law. Informative, intriguing and interesting information. Our goal is to present you with the best quality top 5 list videos on YouTube, so please subscribe so you will never miss a video from us. Whether it’s crazy, creepy, funny, shocking or mysterious, we cover a wide range of topics to keep you wanting to watch more.
Views: 34484423 THE MAGNUM
Public Key Cryptography: RSA Encryption Algorithm
 
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RSA Public Key Encryption Algorithm (cryptography). How & why it works. Introduces Euler's Theorem, Euler's Phi function, prime factorization, modular exponentiation & time complexity. Link to factoring graph: http://www.khanacademy.org/labs/explorations/time-complexity
Views: 593702 Art of the Problem
Identify the killer by cracking the hidden message | Cryptography puzzle
 
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"murder mystery puzzles" "crime puzzles" "whodunit puzzles" "crack the code puzzles" "fun riddles" "solve the mystery" "detective puzzles"
Cicada 3301 (All Clues and How They Were Solved)
 
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Want to know more about PGP encryption? Here's the video I used https://www.youtube.com/watch?v=3yN4uMMsK8I Songs: 00:40 song {Halsey - Haunting (Official Instrumental) https://www.youtube.com/watch?v=eT6VVntT8lo Piano cover by cragezy https://www.youtube.com/watch?v=4AxBYR11MG8 As not stated, the video is not entirely accurate (i.e notes shown were drawn up for clearity). Please refrain from pointing out the flaws when the majority of the video is correct. Douche Clues Clue 1: 0:00 Clue 2: 1:22 Clue 3: 1:48 Clue 4: 2:00 Clue 5: 5:50 Clue 6: 6:45 Clue 7: 8:22 Clue 8: 10:11 Clue 9: 11:05 Clue 10: 13:08
Views: 3527476 TheBraveZombies
BEAT ANY ESCAPE ROOM- 10 proven tricks and tips
 
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10 tips to dominate any Escape room- Prepare your brain for the Escape room using Brilliant.org. First 200 people get 20% off!! http://brilliant.org/markrober EXTRA INF0- -Check out Dr. Nicholson's website here for more juicy stuff- http://scottnicholson.com -8 roles for players- http://bgnlab.ca/blog/2018/8/28/the-eight-roles-for-escape-room-success.html -This is the escape room I filmed in. They were awesome to work with. If you live in Silicon Valley this is the perfect spot (not all Escape Rooms are created equal)- http://playliveescape.com/ -This is the harder room that looked like a castle- https://exit2escape.com MUSIC- 0:07- New Shoes- Blue Wednesday - https://soundcloud.com/bluewednesday/ 1:23- Spark- Maxwell Young- https://soundcloud.com/maxwell_young 2:08- The Ocean- Andrew Applepie- http://andrewapplepie.com/ 6:33- Cereal Killa- Blue Wednesday - https://soundcloud.com/bluewednesday/ 8:30- Breakfast- Andrew Applepie- http://andrewapplepie.com/ 10:57- Q- Blue Wednesday - https://soundcloud.com/bluewednesday/ 11:49- Too Happy to be cool by Notebreak- https://soundcloud.com/notebreak/dubstep-too-happy-to-be-cool Summary: I visited Dr. Scott Nicholson in Brantford, ON Canada since he is the world expert in Escape Room design. After meeting with him for a day here are the 10 tips I came away with to beat any escape room: 1. Think simple 2. Searching 3. Organize your stuff 4. Focus on what is stopping you 5. Team roles 6. Lock types 7. Code types 8. Written clues 9. Look for patterns 10. Your guide is your friend MERCH- They are soft- https://teespring.com/stores/markrober PLEASE CONSIDER SUBSCRIBING: http://tinyurl.com/MarkRober-Sub ****************************************­ I make videos like this once a month all year long while supplies last: CHECK OUT MY CHANNEL: http://tinyurl.com/MarkRober-YouTube FACEBOOK: https://www.facebook.com/MarkRoberYouTube TWITTER: https://twitter.com/#!/MarkRober INSTAGRAM: https://www.instagram.com/markrober/
Views: 8749929 Mark Rober
Let's make secret codes
 
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Send secret messages in an easy way using this powerful technique! Music: Origin by Electric Joy Ride https://www.youtube.com/watch?v=iScT5IfgG-Q Krys Talk & Cole Sipe - Way Back Home https://www.youtube.com/watch?v=qrmc7KVIoKQ&list=UU_aEa8K-EOJ3D6gOs7HcyNg
Views: 33138 Techstremely Good
Playfair Cipher Explained
 
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An animated attempt of explaining the Playfair cipher. This tutorial includes rules of the cipher followed by an example to clear things up. This was a part of my final year project to create a learning aid. I decided to upload this so the animation won't go to waste. All feedbacks welcome. Special thanks to Olivia Beck for creating the background image
Views: 190774 Kenny Luminko
Cryptology: The Nahavo Code
 
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Enjoy... Or else. -_-
Views: 62 Charlie Cain
Uncrackable Pen & Paper Cryptography
 
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Why there is always a safe place for PEOPLE to communicate. P.S. 1. Yes, this is just a "one time pad", and using each key only once is crucial. 2. Yes, this is uncrackable. Without the key you cannot get the message. Brute force does not work as it gives all possible messages and does not say which is the one being sent. 3. Yes, random numbers do exist, but for this a pair of dice is more than adequate.
Views: 3719 RevK
Jumanji: The Mobile Game -  A Monopoly Game with skill cards - Gameplay
 
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Like or dislike, share, and comment! it truly helps to support the channel. Thanks for Watching! Subscribe for More! https://jgamerapps.com —————————————————————————— Download —————————————————————————— ►App Store (iOS/iPhone/iPad): https://itunes.apple.com/app/id1274398573 ►Google Play (Android): https://play.google.com/store/apps/details?id=com.nhnent.SKJUMANJI —————————————————————————— Jumanji: The Mobile Game —————————————————————————— Jumanji is now a competitive mobile game! Challenge your friends and new rivals in an exciting new board game! Pick your favorite character, fill your deck with unique skill cards, and start your journey to save all of Jumanji! Defeat other players in the treacherous world of Jumanji! UNLOCK COUNTLESS CARDS Trapped within the Jumanji game, only you as Dr. Bravestone, Prof. Oberon, Ruby Roundhouse, or Moose Finbar will be able to conquer the different regions of Jumanji and unite them to defeat the ancient curse! Curse? What curse? Download the game to find out! PLAY IN REAL-TIME PVP Compete in live PVP against real players vying for control over key areas of the jungle! Discover new allies in the hired mercenaries scraping out a living in this dangerous world. Or use your knowledge of animals, cryptology, and dance-fighting to carve out a piece of Jumanji for yourself! Roll the dice, and see if you have what it takes to rule Jumanji! EXPLORE BEAUTIFUL WETLANDS AND BIZARRE BAZAARS! Progress through the world of Jumanji from the deep swamp flooded with cursed snakes and alligators to canyons filled with stampeding rhinos. Discover new wonders and strange artifacts from an ancient age. Befriend the cartographer or anger the legendary hunter in several different maps that all require a unique strategy to conquer! Adventure awaits in Jumanji! CUSTOMIZE YOUR IDEAL DECK OF SKILL CARDS Construct and design your own deck to bring to each encounter. Each Skill Card opens dozens of new strategies and ways to defeat your opponent. Each round plays very quickly in the world of Jumanji so you’ll need to use your wits and your speed to beat what the game has in store for you. Discover, collect, and customize over 40 different cards with thousands of deck combinations. Each deck has their own upgradable abilities, so choose wisely! PLAY WITH FRIENDS Stay connected with friends and rivals in Jumanji. Share cards and strategies as you monitor the Rank Leaderboard for your name as you win more and more! Invite your friends for an extended stay in the mystical world of Jumanji! ——————————————————
Views: 1631 JGamer
The Enigma Machine Explained
 
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As technology increases, so do the methods of encryption and decryption we have at our disposal. World War II saw wide use of various codes from substitution ciphers to employing Navajo code talkers in the Pacific theater. Here, science journalist and author Simon Singh demonstrates the German enigma machine, a typewriter-like device used to encrypt communications. He demonstrates not only its operation, but both the strength and fatal flaws in its method. Watch the Full Program Here: https://youtu.be/nVVF8dgKC38 Original Program Date: June 4, 2011 The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future. 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/worldsciencefestival Follow us on twitter: https://twitter.com/WorldSciFest
Views: 540783 World Science Festival
Cryptarithmethic Problems in eLitmus and Infosys | Tricks for Cryptarithmetic Questions and Answers
 
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#MUSTWATCH http://bit.ly/2Thh04i - If you are preparing for placements or struggling with your aptitude/coding preparation for a job then spend 13 minutes to watch this. Only 2.5 lakh students get placed through campus placements out of 9.7 lakhs who are eligible for campus placements each year and when we conducted an extensive survey, 76% of the unplaced candidates told us that that the single biggest thing they could have done better to improve their placements was starting their preparation early. To help candidates like you prepare for placements, we at FACE Prep have hosted a free guidance workshop - http://bit.ly/2S3s8p8 on How to Crack your Dream Job on Campus in Just 6 months.. If you got a call letter for the Infosys Referral Drive (Phase 3) which will be held on the 7th and 8th of April then register here for study material - https://faceprep11.typeform.com/to/P0jjyW For FREE mock tests based on the latest company pattern and FREE practice exercises visit - https://www.faceprep.in/aptipedia. In the quantitative aptitude section of the eLitmus pH test and Infosys Aptitude Test mathematical reasoning section, 1 or 2 questions will be on the topic Cryptarithmetic. What is cryptarithmetic? This topic involves just basic addition and subtraction, but it’s not easy to solve without practice. There will be two words which will be added or subtracted to get another word and all the alphabets of these words will be coded with a unique number. You will have to find all the unique numbers as coded and we have to answer the given question. Cryptarithmetic is easy if you understand the basics clearly and practice more problems. Subscribe to our channel for Placement Preparation videos - https://goo.gl/UdGsKr Don't forget to hit the bell icon to get notified for live classes. Like, comment and share our videos
Views: 100153 faceprep
Let's Play Cypher!: Polyalphabetic Substitution 100% Completion
 
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baXplays Room 4 of Cypher, the new game by Matthew Brown (creator of the popular Hexcells series). We're doing the whole game live on Twitch. Join the fun!: www.twitch.tv/baXcast Support and Subscribe!
Views: 248 baXcast
What is Modular Arithmetic - Introduction to Modular Arithmetic - Cryptography - Lesson 2
 
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Modular Arithmetic is a fundamental component of cryptography. In this video, I explain the basics of modular arithmetic with a few simple examples. Learn Math Tutorials Bookstore http://amzn.to/1HdY8vm Donate - http://bit.ly/19AHMvX STILL NEED MORE HELP? Connect one-on-one with a Math Tutor. Click the link below: https://trk.justanswer.com/aff_c?offer_id=2&aff_id=8012&url_id=232 :)
Views: 178058 Learn Math Tutorials
Public key cryptography - Diffie-Hellman Key Exchange (full version)
 
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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: 649467 Art of the Problem
Quantum Cryptography in 6 Minutes
 
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Quantum Cryptography explained simply. Regular encryption is breakable, but not quantum cryptography. Today we'll look at the simplest case of quantum cryptography, quantum key distribution. It uses the Heisenberg Uncertainty Principle to prevent eavesdroppers from cracking the code. Hi! I'm Jade. Subscribe to Up and Atom for new physics, math and computer science videos every week! *SUBSCRIBE TO UP AND ATOM* https://www.youtube.com/c/upandatom *Let's be friends :)* TWITTER: https://twitter.com/upndatom?lang=en *QUANTUM PLAYLIST* https://www.youtube.com/playlist?list=PL1lNrW4e0G8WmWpW846oE_m92nw3rlOpz *SOURCES* http://gva.noekeon.org/QCandSKD/QCandSKD-introduction.html https://www.sans.org/reading-room/whitepapers/vpns/quantum-encryption-means-perfect-security-986 https://science.howstuffworks.com/science-vs-myth/everyday-myths/quantum-cryptology.htm The Code Book - Simon Singh *MUSIC* Prelude No. 14 by Chris Zabriskie is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://chriszabriskie.com/preludes/ Artist: http://chriszabriskie.com/
Views: 29987 Up and Atom
Cryptography: Codes, Ciphers, and Connections
 
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The encryption of information is as old as information itself. Ever since two people wanted to pass something along, so has there been a third party who wanted to be privy to it. This back and forth battle of creating codes, breaking them, and finding new ones has been happening quietly for thousands of years. Now, in an age when information flows freely and instantaneously, the field of cryptography is more important than ever. Watch the Full Program Here: https://youtu.be/nVVF8dgKC38 Original Program Date: June 4, 2011 The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future. 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/worldsciencefestival Follow us on twitter: https://twitter.com/WorldSciFest
Cipher Feedback Mode(CFB) | Algorithm Modes in Cryptography
 
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In this network security video tutorial we will study and understand the working of Cipher Cipher Feedback (CFB) also known as CFB algorithm mode. Cipher Feedback (CFB) - 1. In this mode data is encrypted in units that are smaller (e.g. they could be of size 8 bits) than a defined block size (which is usually 64 bits). 2. CFB mode works with j bits at a time (as we have seen, usually, but not always , j = 8) Following are the steps of CFB mode - Step 1 - Encrypt the IV(initialization vector) using the KEY to get the Encrypted IV. Step 2 - Perform XOR operation between first j bits of encrypted IV and j bits of Plain Text to get j bits of Cipher Text(Cipher text block 1) Step 3 - left shift the IV by j bits & add the cipher text block from the previous step to the right most side of the IV. Complete Network Security / Information Security Playlist - https://www.youtube.com/watch?v=IkfggBVUJxY&list=PLIY8eNdw5tW_7-QrsY_n9nC0Xfhs1tLEK Download my FREE Network Security Android App - https://play.google.com/store/apps/details?id=com.intelisenze.networksecuritytutorials Simple Snippets Official Website - http://simplesnippets.tech/ Simple Snippets on Facebook - https://www.facebook.com/simplesnippets/ Simple Snippets on Instagram - https://www.instagram.com/simplesnippets/ Simple Snippets on Twitter - https://twitter.com/simplesnippet Simple Snippets Google Plus Page - https://plus.google.com/+SimpleSnippets Simple Snippets email ID - [email protected] For More Technology News, Latest Updates and Blog articles visit our Official Website - http://simplesnippets.tech/ #CipherFeedbackMode #AlgorithmModes #NetworkSecurity #CFB #Cryptography #BlockCiphers
Views: 4729 Simple Snippets
Caesar Cipher
 
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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: 159390 Lacey Wright
Top 10 Unbreakable Ciphers and Codes — TopTenzNet
 
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Top 10 Unbreakable Ciphers and Codes →Subscribe for new videos every day! http://bit.ly/toptenzsubscribe →10 Reasons Bruce Lee was a Superhuman: http://bit.ly/1Hl4mVu Entertaining and educational top 10 lists from TopTenzNet! Brand new videos 7 days a week! Videos are published at 6pm EST every day! Other TopTenz Videos: Top 10 Historical Unsolved Mysteries http://bit.ly/1RAAE95 In an age where we have satellites that can zoom in to watch an ant pee on a leaf, you’d think our society pretty much knows everything. Even with our high-speed, touchscreen, 3-D, Star Wars projectors, there are still a few ciphers and codes keeping cryptologists (trust us, it’s a word) stumped. Some of them come from way back in the 18th century. Even with the addition of advanced technology, ye ol’ pilgrims are proving that the smartest thing about our society might just be our phones. Text version: http://www.toptenz.net/top-10-unbreakable-ciphers-codes.php Coming up: 10. Dorabella Cipher 9. D’Agapeyeff Cipher 8. Indus Script 7. Chinese Gold Bar Ciphers 6. Zodiac Killer 5. Linear A 4. Proto-Elamite 3. Taman Shud 2. McCormick Cipher 1. Bacon Cipher Source/Other reading: http://www.ciphermysteries.com/the-dorabella-cipher http://nautil.us/issue/6/secret-codes/the-artist-of-the-unbreakable-code http://www.ciphermysteries.com/2013/12/23/dagapeyeff-cipher http://itknowledgeexchange.techtarget.com/security-corner/the-unsolved-dagapeyeff-cipher/ http://www.harappa.com/script/indusscript.pdf http://elonka.com/UnsolvedCodes.html http://books.google.com/books?id=G4gCs-RmVZwC&pg=PA46&lpg=PA46&dq=General+Wang+unsolved+gold+bars&source=bl&ots=vrfYkpCHEz&sig=gwWoVvcHk5qecMsXwuLVmZoYKZU&hl=en&sa=X&ei=XU9_U-HGOtelyATduYDYDg&ved=0CHsQ6AEwBQ#v=onepage&q=General%20Wang%20unsolved%20gold%20bars&f=false http://listverse.com/2007/10/01/top-10-uncracked-codes/ http://www.crimelibrary.com/serial_killers/notorious/zodiac/8.html http://www.zodiologists.com/ http://mysteries24.com/n4-21061-Unsolved_coded_messages http://www.cam.ac.uk/research/news/cracking-the-code-the-decipherment-of-linear-b-60-years-on http://www.ancientscripts.com/elamite.html http://www.historytoday.com/mark-ronan/puzzle-proto-elamite http://www.heraldsun.com.au/news/law-order/portrait-may-hold-key-to-somerton-man-beach-mystery/story-fni0ffnk-1226674957043 http://www.ciphermysteries.com/2009/08/08/the-tamam-shud-cipher-mystery http://www.fbi.gov/news/stories/2011/march/cryptanalysis_032911/cryptanalysis_032911 http://www.riverfronttimes.com/2012-06-14/news/ricky-mccormick-code-mysterious-death-st-louis/ http://www.jstor.org/discover/10.2307/751135?uid=3739256&uid=2129&uid=2&uid=70&uid=4&sid=21103794245461 http://www.bibliotecapleyades.net/ciencia/esp_ciencia_manuscrito06.htm
Views: 87601 TopTenz
I Hired A Cryptographer To Expose My Deepest Secret
 
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Views: 7351134 BuzzFeed Multiplayer
"The Lost Symbol" - Magic Squares and the Masonic Cipher
 
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December 2, 2009 Dan Brown? The Lost Symbol? Masonic cipher? Albrecht Durers magic square? If you know about these things AND you can decipher the message below, then dont bother coming because you know as much as I do. If you dont know about them OR you cant decipher the message below, then by all means come and hear my presentation. Yes, we do have pizza. Ed Brumgnach http://www.qcc.cuny.edu/ecet/magicSquares.asp
Views: 1052798 CUNYQueensborough
158,962,555,217,826,360,000 (Enigma Machine) - Numberphile
 
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The Nazi's Enigma Machine - and the mathematics behind it - was a crucial part of World War II. Flaw video at: http://www.youtube.com/watch?v=V4V2bpZlqx8 More links & stuff in full description below ↓↓↓ Brown papers on ebay: bit.ly/brownpapers Dr James Grime demonstrates the machine and discusses its many configurations. James' "day job" is touring with the Enigma machine - he could even visit you - see more at http://enigma.maths.org/content/project-officer NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon: http://www.patreon.com/numberphile Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/ Brady's latest videos across all channels: http://www.bradyharanblog.com/ Sign up for (occasional) emails: http://eepurl.com/YdjL9 Numberphile T-Shirts: https://teespring.com/stores/numberphile Other merchandise: https://store.dftba.com/collections/numberphile
Views: 4005929 Numberphile
Cypher - Trailer (puzzle/indie game about cryptography)
 
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Cypher is a first-person, puzzle, indie game about cryptography. Explore the museum and learn about the history of cryptography, from simple substitution ciphers to the Enigma machine and beyond. Available on steam Subscribe Here ► http://bit.ly/vgt_subscribe ► Website ► http://www.matthewbrowngames.com/ ● 2018 Matthew Brown Humble Monthly ($100+ of Games For $12/month) ► https://www.humblebundle.com/monthly?partner=videogametrailers Check different trailers: ● Moonlighter - Shopkeeping/roguelike/indie game http://bit.ly/Moonlighter1 ● Noita - rogue-lite presented at e3 http://bit.ly/NoitaE3 ● Semblance - puzzle-platformer/indie game http://bit.ly/Semblance1 ● Chasm - platformer/metroidvania game http://bit.ly/ChasmGame ● Dead Cells - platformer/roguelike/castlevania http://bit.ly/DeadCells1 ● Foundiation - city-builder/medieval/management/indie http://bit.ly/2vNrOxB ● Far: Lone Sails - Puzzle-Platformer/story rich http://bit.ly/2OOE1Lf ► Twitter ► https://twitter.com/GameReleasesORG ► Facebook ► https://www.facebook.com/GameReleasesORG/ #VideoGameTrailers #PuzzleGame #IndieGame
Views: 1613 VideoGameTrailers
CONSUME AND SPREAD | Astrocreep
 
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Astrocreep is a game like The Visitor but whatever you do... Don't sit on the toilet!! The Visitor ► https://www.youtube.com/watch?v=c3wKkZULCHg ►Twitter : https://twitter.com/Jack_Septic_Eye ►Instagram: http://instagram.com/jacksepticeye ►Facebook : https://facebook.com/officialjacksepticeye ►Merchandise: http://jacksepticeye.fanfiber.com/ Game Link ► http://gamejolt.com/games/astrocreep/176716 Outro animation created by Cranbersher: https://www.youtube.com/user/Cranbersher Outro Song created by "Teknoaxe". It's called "I'm everywhere" and you can listen to it here http://www.youtube.com/watch?v=JPtNBwMIQ9Q
Views: 3434836 jacksepticeye
How to Create a Crossword Puzzle | WIRED
 
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New York Times crossword puzzle constructor (also known as a cruciverbalist), David Kwong, shows us how he makes a crossword puzzle. David Kwong is a New York Times crossword constructor and magician. His show in New York City, The Enigmatist, is an immersive evening of puzzle-solving, cryptology, and illusions. Visit https://enigmatistshow.com/ for more info. Still haven’t subscribed to WIRED on YouTube? ►► http://wrd.cm/15fP7B7 Also, check out the free WIRED channel on Roku, Apple TV, Amazon Fire TV, and Android TV. Here you can find your favorite WIRED shows and new episodes of our latest hit series Tradecraft. ABOUT WIRED WIRED is where tomorrow is realized. Through thought-provoking stories and videos, WIRED explores the future of business, innovation, and culture. How to Create a Crossword Puzzle | WIRED
Views: 872258 WIRED
HalloWeek Day 2: 7 Days To Die [2 of 2]
 
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Welcome to day 2 of HalloWeek! Today, we're jumping into 7 Days To Die! Join us and get partnered! http://awe.sm/aGrMR Facebook: https://www.facebook.com/thejardev Twitter: https://twitter.com/TheJaRDev Music: Kevin MacLeod (http://incompetech.com/), Machinimasound.com, and Hat Films (http://hatfilms.bandcamp.com/) Sound effects by Sound Bible (http://soundbible.com/) Artwork by Talja ABOUT JARDEV JaRDev is a gaming channel that consists of best friends Jon and Robby playing games together and having a great time. We cover many different types of games, from indie survival games like Don't Starve, to more popular AAA games such as Hearthstone and Far Cry. The channel began by creating mod spotlights for the game Don't Starve, but eventually changed its focus to focus more on cooperative let's plays and series of first impressions and reviews. Make sure you subscribe so you don't miss a thing! Support us on Patreon! https://www.patreon.com/JaRDev
Views: 70 JaR Dev
5 Reasons Why I Love Cryptography By Susan Freed In Atlanta
 
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Five Reasons Why I Love Cryptography http://iheartsusanfreed.com For years, I didn't know anything about cryptography. I'd heard the term, but I didn't know what it meant, or what the practice involved. Still, when I got the chance to study cryptography, I took it, and my life has been richer and more interesting as a result. Cryptography is essentially the study of codes, and learning more about it can benefit your life in all kinds of ways. Below, you'll find five of the reasons I love cryptography. If you learn more about it, there's a good change you'll wind up loving cryptography as much as I do. 1. It makes life more interesting Ever since I started studying cryptography, I've begun to see codes and hidden messages in everything. When I read a letter or look at a sign, I automatically start making connections with my mind. There probably aren't any hidden messages in road signs, but that doesn't matter! Thinking about those things makes my life a lot more interesting, and a lot more fun. 2. It's made me smarter Cryptography is a great way to train your mind and make it sharper than ever before. It helps to improve your concentration as well as your wit. Since I started studying cryptography, I get better scores on tests, and have an easier time studying for classes at school. It's really strengthened my mind. 3. It's given me a more well-rounded education Because of my interest in cryptography, I've studied a number of other subjects. It's given me reason to improve my math and science skills, and to study all kinds of history. I'm more motivated to learn than ever before, and that's helped to educate me in some very interesting ways. Cryptography has given me a better education than I ever would have had without it. I feel like I have little bits of knowledge in all kinds of subjects, and that's really exciting. 4. It's helped me meet some amazing people Because of my passion for cryptography, I've made connections and met people from all over the world. Many of these people are just as passionate about cryptography as I am, and many of them are amazing. The field of cryptography attracts some fascinating and brilliant people. I'm grateful to have met all of them, and I'm very glad that it was cryptography that managed to bring us together. 5. It's a ton of fun! While all of the benefits above are nice, the real reason I love cryptography is that it's fun. No TV show or movie is as exciting as solving a mystery or cracking a puzzle on your own. Cryptography isn't an expensive hobby, but it's definitely an entertaining one. Every day, I always have something interesting to do, and I owe that to cryptography. I highly recommend that everyone learns more about cryptography. It's amazing for more than five reasons, and if you look into it, you'll probably love it too. Cryptography is an absolutely incredible hobby. http://youtu.be/TXplWR7Jr-E http://en.wikipedia.org/wiki/Cryptography
Views: 288 Sarah Jenner
Caesar Cipher | Caesar Substitution Cipher | Cryptography series | Eng - Hindi | Tutorial-1
 
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#AskFaizan | #syedfaizanahmad Playfair Substitution Cipher https://youtu.be/w_xr7pj-O6c Monoalphabetic Substitution Cipher https://youtu.be/Hw1T7GOnVW0 Caesar Cipher | Caesar Substitution Cipher https://youtu.be/2N9GlhysYJw PlayList : Cryptography and Network Security : https://www.youtube.com/playlist?list=PLhwpdymnbXz7hvvqhqjIIG4tEdhAgQqll The Caesar cipher is one of the earliest known and simplest ciphers. It is a type of substitution cipher in which each letter in the plaintext is 'shifted' a certain number of places down the alphabet. For example, with a shift of 1, A would be replaced by B, B would become C, and so on. The method is named after Julius Caesar, who apparently used it to communicate with his generals. The algorithm can be expressed as For each plaintext letter p , substitute the ciphertext letter C C = E(k, p) = (p + k) mod 26 Where k takes on a value in the range 1 to 25. The decryption algorithm is simply p = D(k, C) = (C - k) mod 26 Drawbacks - Caesar Cipher is one of the weakest forms of encryption as The key space is very small. Using a brute force attack method, one could easily try all (25) possible combinations to decrypt the message without initially knowing the key. The language of the plaintext is known and easily recognizable. Cryptanalysis: Cryptanalytic attacks rely on the nature of the algorithm plus perhaps some knowledge of the general characteristics of the plaintext or even some sample plaintext–ciphertext pairs. Brute-force attack: The attacker tries every possible key on a piece of ciphertext until an intelligible translation into plaintext is obtained. On average, half of all possible keys must be tried to achieve success. #askfaizan | #syedfaizanahmad
Views: 757 Ask Faizan
WEZONE 8007 | CLAN 8007 SET TOP BOX | STARSET HYPER 3000 FIRMWARE | NEW SOFTWARE | ALL NETWORK
 
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[Hindi] What is Cryptography ? | Kya hai cryptography ? | Explained in simple words
 
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Hello Dosto Aaj hum baat karenge cryptography ke bare me ki ye kya hota hai aur iska itemaal kaise aur kaha hota hai. iska sambandh kisi bhi data ya message ko safely pohchane se hota hai aur uski security badhayi jati hai taaki bich me koi an-adhikarik tarike se usko access na kar paye. aasha karta hoo apko ye video pasand ayegi agar aapko ye video achhi lage to isse like kare aur apne dosto ke sath share kare aur abhi tak aapne mera channel subscribe nahi kia hai to jarur is channel ko subscribe kare. Subscribe to my channel for more videos like this and to support my efforts. Thanks and Love #TechnicalSagar LIKE | COMMENT | SHARE | SUBSCRIBE ---------------------------------------------------------------------------------- For all updates : SUBSCRIBE Us on Technical Sagar : www.youtube.com/technicalsagarindia LIKE us on Facebook https://www.facebook.com/technicalsagarindia Follow us on Twitter : http://www.twitter.com/iamasagar
Views: 107004 Technical Sagar
But how does bitcoin actually work?
 
26:21
How would you invent your own cryptocurrency. Home page: https://www.3blue1brown.com/ Brought to you by you: http://3b1b.co/btc-thanks And by Protocol Labs: https://protocol.ai/join/ Some people have asked if this channel accepts contributions in cryptocurrency form. Indeed! http://3b1b.co/crypto 2^256 video: https://youtu.be/S9JGmA5_unY Music by Vincent Rubinetti: https://soundcloud.com/vincerubinetti/heartbeat Here are a few other resources I'd recommend: Original Bitcoin paper: https://bitcoin.org/bitcoin.pdf Block explorer: https://blockexplorer.com/ Blog post by Michael Nielsen: https://goo.gl/BW1RV3 (This is particularly good for understanding the details of what transactions look like, which is something this video did not cover) Video by CuriousInventor: https://youtu.be/Lx9zgZCMqXE Video by Anders Brownworth: https://youtu.be/_160oMzblY8 Ethereum white paper: https://goo.gl/XXZddT ------------------ Animations largely made using manim, a scrappy open source python library. https://github.com/3b1b/manim If you want to check it out, I feel compelled to warn you that it's not the most well-documented tool, and has many other quirks you might expect in a library someone wrote with only their own use in mind. Music by Vincent Rubinetti. Download the music on Bandcamp: https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown Stream the music on Spotify: https://open.spotify.com/album/1dVyjwS8FBqXhRunaG5W5u If you want to contribute translated subtitles or to help review those that have already been made by others and need approval, you can click the gear icon in the video and go to subtitles/cc, then "add subtitles/cc". I really appreciate those who do this, as it helps make the lessons accessible to more people. ------------------ 3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted on new videos, subscribe, and click the bell to receive notifications (if you're into that). If you are new to this channel and want to see more, a good place to start is this playlist: http://3b1b.co/recommended Various social media stuffs: Website: https://www.3blue1brown.com Twitter: https://twitter.com/3Blue1Brown Patreon: https://patreon.com/3blue1brown Facebook: https://www.facebook.com/3blue1brown Reddit: https://www.reddit.com/r/3Blue1Brown
Views: 2637620 3Blue1Brown
DEMONSTRATION OF GERMAN ENIGMA MACHINE   WWII SECRET CODE DEVICE 70962
 
02:25
This footage shows a three rotor German Enigma machine invented by the German engineer Arthur Scherbius at the end of World War I. Early models were used commercially from the early 1920s, and adopted by military and government services of several countries, most notably Nazi Germany before and during World War II. Several different Enigma models were produced, but the German military models are the most commonly recognized. German military messages enciphered on the Enigma machine were first broken by the Polish Cipher Bureau, beginning in December 1932. This success was a result of efforts by three Polish cryptologists, Marian Rejewski, Jerzy Różycki and Henryk Zygalski, working for Polish military intelligence. Rejewski reverse engineered the device, using theoretical mathematics and material supplied by French military intelligence. Subsequently the three mathematicians designed mechanical devices for breaking Enigma ciphers, including the cryptologic bomb. From 1938 onwards, additional complexity was repeatedly added to the Enigma machines, making decryption more difficult and requiring larger numbers of equipment and personnel -- more than the Poles could readily produce. On 25 July 1939, in Warsaw, the Poles initiated French and British military intelligence representatives into their Enigma-decryption techniques and equipment, including Zygalski sheets and the cryptologic bomb, and promised each delegation a Polish-reconstructed Enigma. The demonstration represented a vital basis for the later British continuation and effort. During the war, British cryptologists decrypted a vast number of messages enciphered on Enigma. The intelligence gleaned from this source, codenamed "Ultra" by the British, was a substantial aid to the Allied war effort. Though Enigma had some cryptographic weaknesses, in practice it was German procedural flaws, operator mistakes, laziness, failure to systematically introduce changes in encipherment procedures, and Allied capture of key tables and hardware that, during the war, enabled Allied cryptologists to succeed We encourage viewers to add comments and, especially, to provide additional information about our videos by adding a comment! See something interesting? Tell people what it is and what they can see by writing something for example like: "01:00:12:00 -- President Roosevelt is seen meeting with Winston Churchill at the Quebec Conference." This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD and 2k. For more information visit http://www.PeriscopeFilm.com
Views: 2546 PeriscopeFilm
Kya hai cryptography ? | Explained in simple words with good examples | basic concept
 
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All about cryptography and information security which a computer graduate must know. Cryptography or cryptology is the practice and study of techniques for secure communication in the presence of third parties called adversaries. More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages;[3] various aspects in information security such as data confidentiality, data integrity, authentication, and non-repudiation[4] are central to modern cryptography. Modern cryptography exists at the intersection of the disciplines of mathematics, computer science, and electrical engineering. Applications of cryptography include military communications, electronic commerce, ATM cards, and computer passwords. Cryptography prior to the modern age was effectively synonymous with encryption, the conversion of information from a readable state to apparent nonsense. The originator of an encrypted message (Alice) shared the decoding technique needed to recover the original information only with intended recipients (Bob), thereby precluding unwanted persons (Eve) from doing the same. The cryptography literature often uses Alice ("A") for the sender, Bob ("B") for the intended recipient, and Eve ("eavesdropper") for the adversary. Since the development of rotor cipher machines in World War I and the advent of computers in World War II, the methods used to carry out cryptology have become increasingly complex and its application more widespread. Modern cryptography is heavily based on mathematical theory and computer science practice; cryptographic algorithms are designed around computational hardness assumptions, making such algorithms hard to break in practice by any adversary. It is theoretically possible to break such a system, but it is infeasible to do so by any known practical means. These schemes are therefore termed computationally secure; theoretical advances, e.g., improvements in integer factorization algorithms, and faster computing technology require these solutions to be continually adapted. There exist information-theoretically secure schemes that provably cannot be broken even with unlimited computing power—an example is the one-time pad—but these schemes are more difficult to implement than the best theoretically breakable but computationally secure mechanisms. The growth of cryptographic technology has raised a number of legal issues in the information age. Cryptography's potential for use as a tool for espionage and sedition has led many governments to classify it as a weapon and to limit or even prohibit its use and export.In some jurisdictions where the use of cryptography is legal, laws permit investigators to compel the disclosure of encryption keys for documents relevant to an investigation.Cryptography also plays a major role in digital rights management and copyright infringement of digital media.
Views: 36 StriJan Channel
22. Cryptography: Encryption
 
01:24:15
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: 18590 MIT OpenCourseWare
AQA A’Level Encryption - Caesar cipher
 
03:17
AQA Specification Reference AS Level 3.5.6.8 A Level 4.5.6.10 Why do we disable comments? We want to ensure these videos are always appropriate to use in the classroom. However, we value your feedback, and are happy to consider amendments due to inaccuracies. Please get in touch with us directly at: [email protected] For all our support resources please visit: http://craigndave.org/ http://student.craigndave.org/
Views: 1256 craigndave
State of iOS Gaming in 2019
 
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iOS gaming in 2019, is on par with console quality graphics and gameplay, let’s take a look! Watch - State of iPhone Gaming in 2019: https://youtu.be/4vZDvF6qmYE Buy SteelSeries Nimbus Wireless Gaming Controller from amazon: https://amzn.to/2W8RgNP Join the Apple Gaming Community on Discord: https://discord.gg/y3Z4GDa Subscribe Then Hit The 🔔! http://bit.ly/1fS10Cg −−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−­−−−−−−− iOS GAMING APPS ARE LISTED BELOW: −−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−­−−−−−−− 1 - Sky More info: http://thatgamecompany.com/sky/ iOS Release Date: Sometime 2019 2 - PS4 Remote Play App Store: https://itunes.apple.com/us/app/ps4-remote-play/id1436192460?mt=8 iOS Release Date: 07-Mar-19 3 - GRID Autosport App Store: https://itunes.apple.com/us/app/grid-autosport/id1179421849?mt=8 iOS Release Date: 26-Nov-17 4 - NBA 2K Mobile Basketball App Store: https://itunes.apple.com/us/app/nba-2k-mobile-basketball/id1252850847?mt=8 iOS Release Date: 19-Nov-18 5 - Assassin's Creed Rebellion App Store: https://itunes.apple.com/us/app/assassins-creed-rebellion/id1164056434?mt=8 iOS Release Date: 20-Nov-18 6 - Shadowgun Legends App Store: https://itunes.apple.com/us/app/shadowgun-legends/id1091251242?mt=8 iOS Release Date: 21-Mar-18 7 - Euclidean Skies App Store: https://itunes.apple.com/us/app/euclidean-skies/id1404253683?mt=8 iOS Release Date: 25-Oct-18 8 - Kings of Pool App Store: https://itunes.apple.com/us/app/kings-of-pool/id1049420215?mt=8 iOS Release Date: 21-Feb-17 9 - My Very Hungry Caterpillar AR App Store: https://itunes.apple.com/us/app/my-very-hungry-caterpillar-ar/id1277085142?mt=8 iOS Release Date: 19-Sep-19 10 - Fortnite App Store: https://itunes.apple.com/us/app/fortnite/id1261357853?mt=8 iOS Release Date: 15-Mar-18
Views: 190451 MrMacRight
Isaac Chambers - Move on (feat. Dub Princess)
 
05:32
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Can We Handle The CRYPTOGRAM PUZZLE POST?
 
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The post is in and it's full of puzzles! Jules has been sent an issue of the Cryptogram Puzzle Post and has challenged his colleagues to complete these complex conundrums, do you think they can hack it? If you want to win an issue yourselves then follow @WCultureGaming as there's going to be a special announcement coming out soon! For more awesome content, check out: http://whatculture.com/gaming Catch us on Facebook at: https://www.facebook.com/whatculturegaming And follow us on Twitter @wculturegaming
Views: 23761 WhatCulture Gaming
Cool Codes for Kids: The Pigpen Cypher
 
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Dan Metcalf, author if Codebusters, gives you the lowdown on codes, ciphers and puzzles you can try at home. What do you do when you want all your writing to be secret? You use a code of course. You could use a substitution code like the Caesar shift, but you can just as easily use a code that substitutes letters for shapes. This is what the Freemasons did a few hundred years ago when they invented the Pigpen cypher! To start, you need a key – use two grids like this – the 'pigpen' – and fill in the alphabet. The second grids have dots in them so you can tell them apart from the first ones. Then you take the individual shape of the letter you wish to replace and copy it down. Then the decoder just needs to match the shapes to their key. Nifty, huh? Try this yourself!
Views: 2085 Dan Metcalf Writer
The Alan Turing Cryptography Competition
 
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An online cryptography competition for students up to year 11 (or the equivalent) in the UK: http://www.maths.manchester.ac.uk/cryptography_competition/
Views: 604 ManUniMaths
Creating An Unbreakable Cipher (nearly)
 
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Creating Ciphers can be fun, but understanding how they work by using a simple example of developing a cipher is a great way to understand them. This video covers the development of a cipher algorithm and shows how to make it (nearly) unbreakable.
I Love Codes, Ciphers, & Cryptograms!
 
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I am expressing to my viewers , how much I love various types of codes, ciphers, and cryptograms, and what level of knowledge I rank myself in my ability to solving them. https://www.facebook.com/brianpeterson Like this video & Leave comments if you enjoyed this. Hit the Subscribe Button if you enjoyed this!
Views: 52 Brian Peterson
CppCon 2018: Fabian Renn-Giles “A Semi Compile/Run-time Map with (Nearly) Zero Overhead Lookup”
 
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http://CppCon.org — Presentation Slides, PDFs, Source Code and other presenter materials are available at: https://github.com/CppCon/CppCon2018 — An associative map container is one of the most useful data-structures in any modern program. Given a key, it can look-up the corresponding value incurring some runtime overhead. Often, however, this overhead is not strictly necessary as the key originated (either directly or indirectly) from a value which was known to the compiler at compile-time - such as a literal. In this talk, I will present a semi compile-/run-time map which can overcome this overhead by using C++’s constexpr features. Yet another constexpr hash map talk, I hear you say? This one is different! Most constexpr maps presented at previous conferences are either constexpr-only, i.e. the values cannot be changed at runtime, or, require that all possible keys of the map are defined in one place making it unsuitable for library code. In contrast, the map presented in this talk, only calculates the storage of the key’s associated value at compile-time, but loading/storing the value and adding key/value pairs still occurs at run-time. It will be shown how such a map can be used to implement a super efficient cache. In its most simplest form, looking up the storage of a primitive type for a given compile-time key has the same overhead as accessing a global variable. It will be shown that the underlying principle is surprisingly easy (3 lines of code) and the difficulty actually lies in associating any compile-time identifier to a unique C++ type - especially string literals. I will show how this can be achieved using constexpr if and constexpr lambda expressions - both C++17 features. — Fabian Renn-Giles, Fielding DSP Senior Software Engineer Fabian Renn-Giles (PhD) is a freelance C++ programmer, entrepreneur and consultant in the audio software industry. Up until recently he was staff engineer at ROLI Ltd. and the lead maintainer/developer of the JUCE C++ framework (www.juce.com) - an audio framework used by thousands of commercial audio software companies. Before joining ROLI, he completed his PhD at Imperial College London, developing a numerical quantum optics solver with modern digital signal processing techniques and C++/MPI/OpenCL. During his academic career, Fabian regularly taught C++ to post- and undergraduate students in tutor groups. In 2005, Fabian co-founded the audio plug-in start-up Fielding DSP which specialises in real-time audio plug-ins for audio mastering. Fabian now regularly consults on various audio related software projects. Additionally, he is a regular speaker and/or workshop leader at the C++ audio developer conference ADC. He also hosts the monthly audio developer meetup in London. — Videos Filmed & Edited by Bash Films: http://www.BashFilms.com
Views: 4266 CppCon