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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: 810900 SciShow
Famous UNCRACKED Codes That STILL Exist!
 
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Check out these famous uncracked codes that still exist! From secret riddles to unsolved mysteries, this top 10 list contains cryptography that's still unexplained today! Subscribe For New Videos! http://goo.gl/UIzLeB Watch our "Most CRAZY Things Ancient Egyptians Did!" video here: https://youtu.be/T0zERiMJFQo Watch our "Most CRAZY Things Ancient Greeks Did!" video here: https://youtu.be/-JkhVvn_dow Watch our "REAL Evidence That Aliens EXIST!" video here: https://youtu.be/dtwJT2eilx0 10. Chinese Gold Bar Cipher In 1933, General Wang in Shanghai, China, allegedly received seven gold bars. These gold bars appear to represent metal certificates related to a bank deposit with a U.S. Bank. The gold bars themselves have pictures, Chinese writing, some form of script writing, and cryptograms in Latin letters. Not surprisingly, experts debate concerning the validity of the claim for the deposit. It may help to resolve the dispute if someone can decipher the cryptograms on the bars. Someone translated the Chinese writing, which discusses a transaction in excess of $300,000,000. It also refers to these gold bars, which weigh a total of 1.8 kilograms. The rest remains a mystery. 9. D’agapeyeff Cipher The D’Agapeyeff cipher is an as-yet unbroken cipher that appears in the first edition of Codes and Ciphers, an elementary book on cryptography published by the Russian-born English cartographer Alexander D’Agapeyeff in 1939. Offered as a “challenge cipher” at the end of the book, it was not included in later editions. D’Agapeyeff supposedly admitted later to having forgotten how he had encrypted it. Some argue that the failure of all attempts at decryption is due to D’Agapeyeff incorrectly encrypting the original text. However, it has also been argued that the cipher may still be successfully attacked using computational methods such as genetic algorithms. Whatever those are. 8. The Beale Ciphers If this next one isn’t a hoax then the person who solves it could become very, very rich. This question of authenticity has bothered cryptoanalysts ever since these ciphers first appeared in an 1885 pamphlet called The Beale Papers, which recounts a fantastic story of buried treasure. According to the pamphlet, a man named Thomas Jefferson Beale, a man no one has proven even existed, discovered gold during an 1816 expedition into the American West. The treasure, as the story goes, was then transported to Bedford County, Virginia, and buried. The gold's secret location was allegedly provided by three cryptograms, of which one was already cracked. Unfortunately, the cracked code only detailed the type of treasure there and not a specific location. To find out anything more specific would involve cracking the two other ciphers. The problem is that figuring it out requires comparing them to unknown historical texts. The decrypted cipher, for example, used the Declaration of Independence. The first number, 115, corresponds with the first letter of the 115th word in the Declaration: "instituted." That means 115 stands for "I." So what are the translation texts for the other two ciphers? No one knows, and they may very well not exist at all. There are also questions over whether the other ciphers may just be unintelligible, as if the whole thing was made up by the pamphlet's author decades after the gold was supposed to have been discovered. 7. Dorabella In 1897, a 40-year-old composer named Edward Elgar sent an encrypted letter to 23-year-old Dora Penny, the stepdaughter of one of his friends. Why he sent it is part of the mystery and can only be answered if anyone ever cracks the code. To figure it out would involve deciphering 87 characters all made of strings of semi-circles oriented in different directions. Attempts at translating the cipher yielded a message just short of gibberish. Experts say that shorter ciphers are always harder to solve. Another theory has it that the code is an example of a distinct private language shared only between Penny and Elgar. If that's the case, then solving it may be simply impossible, since no one but them would understand the references. In 2016, a police officer in Cleveland believes he’s cracked at least part of the code, revealing a line of melody. Inspector Mark Pitt read 100 books on the Dorabella Cipher; he hopes to write one on his discoveries. Whether or not that’s really the meaning, though, remains to be seen. Origins Explained is the place to be to find all the answers to your questions, from mysterious events and unsolved mysteries to everything there is to know about the world and its amazing animals!
Views: 1248658 Origins Explained
Top 10 Uncracked Codes and Ciphers
 
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Not even the greatest minds of the world could decipher these codes. Join http://www.WatchMojo.com as we count down our picks for the Top 10 Uncracked Codes and Ciphers. Check us out at http://www.Twitter.com/WatchMojo, http://instagram.com/watchmojo and http://www.Facebook.com/WatchMojo. Also, check out our interactive Suggestion Tool at http://www.WatchMojo.com/suggest :) Special thanks to our user kenn1987 for submitting this idea through our Suggest Tool at http://www.WatchMojo.com/Suggest Check out the voting page here, http://watchmojo.com/suggest/Top+10+Uncracked+Codes/Ciphers If you want to suggest an idea for a WatchMojo video, check out our interactive Suggestion Tool at http://www.WatchMojo.com/suggest :) Want a WatchMojo cup, mug, t-shirts, pen, sticker and even a water bottle? Get them all when you order your MojoBox gift set here: http://watchmojo.com/store/xmas.php WatchMojo is a leading producer of reference online video content, covering the People, Places and Trends you care about. We update DAILY with 2-3 Top 10 lists, Origins, Biographies, Versus clips on movies, video games, music, pop culture and more!
Views: 513859 WatchMojo.com
10 Unsolved Codes That No One Can Crack
 
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Given enough time, experts can generally crack ciphers. However, every once in a while, a code comes along that no one is able to solve despite decades of study. Are they hoaxes, or are they really just that good? These are 10 codes that no one can crack. SUBSCRIBE to Top Lists: http://bit.ly/1L6oSup 10 Things You Didn't Know About Germany - http://bit.ly/1VZVy2J 10 Things You Didn't Know About China - http://bit.ly/2194oet 5 Real Secret Societies That Control The World - http://bit.ly/1V35S9O ------------------------------------------------------------------------------------------------- Like us on Facebook: http://on.fb.me/1KFduoO 10 Unsolved Codes No One Can Crack
Views: 104957 Top Lists
10 Codes and Ciphers
 
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10 Codes and Ciphers ----------------------------------------------- Subscribe to study the hidden secrets of the strange, unexplained and the macabre. Discover wayward spirits, unsolved mysteries, grisly murders, macabre history, folklore and legends of old. Facebook : https://fb.com/taphtv Thank you for watching our videos :x
The Caesar cipher | Journey into cryptography | Computer Science | Khan Academy
 
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Brit explains the Caesar cipher, the first popular substitution cipher, and shows how it was broken with "frequency analysis" Watch the next lesson: https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/polyalphabetic-cipher?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Missed the previous lesson? https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/intro-to-cryptography?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Computer Science on Khan Academy: Learn select topics from computer science - algorithms (how we solve common problems in computer science and measure the efficiency of our solutions), cryptography (how we protect secret information), and information theory (how we encode and compress information). About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Computer Science channel: https://www.youtube.com/channel/UC8uHgAVBOy5h1fDsjQghWCw?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 597708 Khan Academy
Vigenere Cipher - Decryption (Unknown Key)
 
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This video shows the process (thoroughly) of how to find the key when you don't have it. English alphabet frequencies: http://www.math.cornell.edu/~mec/2003-2004/cryptography/subs/frequencies.html Decryption (known key): http://youtu.be/oHcJ4QLiiP8 Encryption: http://youtu.be/izFivfLjD5E
Views: 129098 Theoretically
How To Write in Pigpen Cipher [2 MINUTE TUTORIAL]
 
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Pigpen cipher - also known as masonic cipher, Freemason's cipher, Napoleon cipher, and tic-tac-toe cipher - is a geometric substitution cipher based off of 4 grids. If you enjoyed this pigpen cipher tutorial, please do remember to subscribe - it really helps me out. Buy my artwork / check out my website here: https://www.buzzymartin.co.uk Follow me on instagram: https://www.instagram.com/buzzymartin
Views: 34473 Buzzy Martin
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
Unsolved - The History and Mystery of the World’s Greatest Ciphers
 
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Craig Bauer, author of Unsolved Ciphers and editor of Cryptologia, will examine these and other vexing ciphers yet to be cracked. Some may reveal the identity of a spy or serial killer, provide the location of buried treasure, or expose a secret society—while others may be elaborate hoaxes. Guests are invited to stay after his talk for some collaborative cipher-breaking fun. ----------------------------------------------------------------- Facebook: https://www.facebook.com/IntlSpyMuseum Twitter: https://twitter.com/intlspymuseum SpyCast: https://audioboom.com/channel/spycast
Views: 10475 IntlSpyMuseum
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: 3117 RevK
Codes and Ciphers - Polyalphabetic Ciphers
 
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Understanding polyaplhabetic ciphers
Views: 2470 Chuck Moore
Codes and Ciphers - Monoalphabetic Ciphers
 
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Understanding monoaplhabetic ciphers
Views: 1008 Chuck Moore
How To Decode A Message With An ATBASH Cipher [CODE CRACKING 101]
 
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http://royalorderoftheholymackerel.com/ WANT TO JOIN THE SOCIETY? CLICK THE LINK BELOW! http://royalorderoftheholymackerel.com/new_members/ DOWNLOAD AND PRINT YOUR FREE ATBASH CIPHER DISK! https://drive.google.com/file/d/0B9b4jkHYFD5AeTdwY2FyTVU1OUk/edit?usp=sharing DOWNLOAD AND PRINT YOUR FREE DECODER DISK #3! https://drive.google.com/file/d/0B9b4jkHYFD5AanB5Q08tbklYMTQ/edit?usp=sharing DOWNLOAD AND PRINT YOUR FREE "THREE LETTERS BACK" CAESAR CIPHER! https://drive.google.com/file/d/0B9b4jkHYFD5AWjBNUnZVX3JuYmM/edit?usp=sharing SUPPORT THE SHOW AND UNLOCK COOL BONUS CONTENT ON PATREON! http://www.patreon.com/RoyalOrderoftheHolyMackerel MEMBERSHIP KITS, INVISIBLE INK PENS, MEMBER'S JOURNAL BINDERS, AND DECODER RINGS ARE NOW AVAILABLE IN THE STORES!! http://roothm.storenvy.com/ http://www.zazzle.com/roothm JOIN THE FISHERS OF TRUTH NEWSLETTER http://eepurl.com/TXpbn SUBSCRIBE TO THE PODCAST ON iTUNES https://itunes.apple.com/us/podcast/royal-order-holy-mackerel/id855579169 OUR PREVIOUS MEETING http://youtu.be/NpmXQV6q9Ug ------------------ Welcome to Code Cracking 101! In this episode I explain how to use an ATBASH cipher to decode the secret messages hidden in episodes 7 - 13 (and beyond) of Gravity Falls. ------------------ SEND LETTERS, FAN MAIL, AND POSTCARDS TO Douglas MacKrell P.O.Box 6529 Astoria, NY 11106 SEND EMAILS TO [email protected] JOIN THE SOCIETY Website http://royalorderoftheholymackerel.com/ Facebook https://www.facebook.com/theroyalorderoftheholymackerel Twitter https://twitter.com/DouglasMacKrell Tumblr http://theroyalorderoftheholymackerel.tumblr.com/ Instagram http://instagram.com/douglasmackrell G+ https://www.google.com/+BigMacKrell ----------------- MORE INFORMATION ON GRAVITY FALLS http://disneychannel.disney.com/gravity-falls http://en.wikipedia.org/wiki/Gravity_Falls http://gravityfalls.wikia.com/wiki/Gravity_Falls_Wiki MORE INFORMATION ABOUT THE ATBASH CIPHER http://en.wikipedia.org/wiki/Atbash Cipher Challenge: Atbash cipher http://youtu.be/EksD3QHkkRE atbash http://youtu.be/t4Z0eVVZDPk The Hidden Meaning of END OF THE WORLD http://youtu.be/W96lFus0JRo ------------- In this meeting of Code Cracking 101, I break down the Atbash Cipher. The ATBASH cipher actually got it's start in Hebrew text - notably in Jewish Mysticism, as it's used in translations of their religious books. The name itself is is actually an acronym of four Hebrew letters: Aleph-Tav-Beth-Shin (אתבש). The way the Atbash Cipher works is by mirroring the alphabet. By writing A to Z on a piece of paper and Z to A just below it, you've crafted an Atbash Cipher! This means that if you decode one letter B=Y, you've decoded the reverse as well Y=B. Due to the low difficulty of this encryption method, it's not often used in situations where data must remain secure - but it does make a great way to casually encode messages between friends! http://wp.me/a4aWg3-8H
Views: 58734 Secret Screening
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: 28504 Techstremely Good
Ancient Codes and Hieroglyphs : Documentary on the Science of Secrets (Full Documentary)
 
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Encryption and Le Chiffre Indechiffrable : Documentary on the Science of Secrets (Full Documentary). . Ancient Codes and Hieroglyphs : Documentary on the Science of Secrets (Full Documentary). . A Short History of Cryptography - A Brief History of Cryptography. An Episode Of Simon Singh's Series On The History of Keeping Secrets follows the development of the Idea of Non Secret Encryption To Finding the . This video is a production of the Washington DC Chapter of the Internet Society (ISOC-DC produced and directed by Paul Brigner and .
Views: 1639 Cira Mose
A Short History of Cryptography - A Brief History of Cryptography
 
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A Short History of Cryptography - A Brief History of Cryptography
Views: 34181 fb
Vigenere Cipher 1
 
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Encrypt the message MAKE IT HAPPEN using the Vigenėre cipher and key word MATH.
Views: 157251 MathAfterMath
Vigenere CIpher
 
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This video is part of the Udacity course "Intro to Information Security". Watch the full course at https://www.udacity.com/course/ud459
Views: 57868 Udacity
Fishy Codes: Bletchley's Other Secret - Computerphile
 
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Hitler's High Command didn't use Enigma, they used a faster system called Lorenz, but when Allied forces first encountered it, they had no idea what it was and code-named it 'Tunny' (Tuna). Professor Brailsford explains why this relates to the early days of Computer Science Next Video in this series: https://youtu.be/yxx3Bkmv3ck The Professor's Notes: Undulator Sheet: http://bit.ly/computerphileundulator Teleprinter Code: http://bit.ly/computerphile5holetape Colossus & Bletchley Park: https://youtu.be/9HH-asvLAj4 Enigma Playlist: https://www.youtube.com/playlist?list... 5 Hole Paper Tape: https://youtu.be/JafQYA7vV6s XOR and the Half Adder: https://youtu.be/VPw9vPN-3ac JPEG DCT: https://youtu.be/Q2aEzeMDHMA Computer That Changed Everything: https://youtu.be/6LYRgrqJgDc Inside the Computer (EDSAC): https://youtu.be/Yc945sNB0uA http://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: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 126010 Computerphile
Most Mysterious UNCRACKED Codes And Ciphers Nobody Can Solve!
 
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Check out the Most Mysterious UNCRACKED Codes And Ciphers Nobody Can Solve! From unbreakable riddles to unsolved mysteries, this top 10 list of famous codes and ciphers will amaze you! Subscribe to World5List: http://goo.gl/cpJSA6 Check out our "Superpowers You Can Get RIGHT NOW!" video at: https://youtu.be/a6QmVdBTf0g Check out our "6 Places More Mysterious Than The Bermuda Triangle...?" video at: https://youtu.be/v9VarHk6_cY Check out our "8 Bizarre Things People Found in Their Pool" video at: https://youtu.be/gH7ywvBgXkE 9. The Dorabella Cipher Most people would speculate that codes and ciphers are made solely for the purpose of hiding something from someone else, but the Dorabella Cipher is proof that this is not true. Codes and ciphers are something that intrigues the minds of many, such as 18th century composer Edward Elgar. 8. Somerton Man The year was 1948, off the coast of Somerton Beach near Adelaide, Australia. What should have been a normal day turned into a mystery when a rather well dressed man literally washed up onto the shores of the beach. He was dressed for cold weather, even though the weather itself was pretty hot, and just as odd, there was no identification on the man at all, and when they ran his fingerprints and dental records, there were no matches. 7. The Blitz Ciphers During World War II, a bomb went off near a home in East London. When it did, it damaged the cellar of a house in the area. When the family went to investigate the damage, they found a series of manuscripts that appeared to be from a very ancient time. By this, I mean that the way they were written, as well as the paper they were on, was very old and stylized, and the language that was written wasn't understood by the family members. 6. The D'Agapeyeff Cipher There have been many authors who have written about codes and ciphers in their time, but in 1939, Russian/English cryptographer Alexander D’Agapeyeff dabbled in the subject via his book "Codes and Ciphers". But in a fun twist, he decided to push his readers brains to the limit by creating his OWN cipher and putting it at the back of the book to see if they could figure it out. 5. The Voynich Manuscript The Voynich Manuscript is a codex for lack of a better term. And yet, it's not something we can translate or decipher, but not for lack of trying and analysis. The main reason is because the Voynich Manuscript was both handwritten by the author and is hand-drawn. Usually, it would just take time to decipher the handwriting, but the text itself is written in a language that no one on this Earth currently understands. 4. Kryptos The United States has many covert agencies, one of which is the CIA (Central Intelligence Agency), and right outside the building that houses the CIA is a massive cipher that has remained mostly unsolved since its inception: The Kryptos. 3. The Beale Ciphers In 1885, a man named Thomas Jefferson Beale wrote something into a pamphlet called "The Beale Papers". Specifically, he wrote a story about a great treasure that he had found in the American West, transported to Virginia, and then buried. He then would give the people via the pamphlet a trio of ciphers to crack. Each of which gave a clue and context to the treasure that he was alluding to, and where to find it. 2. D-Day Pigeon There were many codes by all sides in World War II, with the intent to try and confuse the enemy and ensure that their messages weren't intercepted. The problem though, was that the easiest way to deliver the messages, a radio, was also the most dangerous, as the enemy could eavesdrop on them. The way around that was through carrier pigeons, but they too had their own issues. 1. Zodiac Cipher The Zodiac Killer is one of the most infamous people in the history of the world, a case that has puzzled many people for nearly half a century. The identity of the Zodiac is still unknown, but what's just as unknown is the context and meaning of a cipher that he sent to the San Francisco Chronicle back in November of 1969.
Views: 5160 World 5 List
Types of Ciphers
 
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Types of Ciphers
Views: 31865 Jungwoo Ryoo
Top 7 Secret Codes and Ciphers
 
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A video I created about some secret codes and ciphers that are used in order to protect sensitive information. Watch the video to learn more :-) It includes: Monoalphabetic Substitution, Vigenère, True Codes, The Enigma Code, Public-Key Cryptography, Steganography, ROT1, Transposition, Morse Code, Caesar Shift Cipher. Music: The Complex - Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/ Subscribe for more great stuff :-)
Views: 4100 dzvero007
Cryptography: Crash Course Computer Science #33
 
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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: 215185 CrashCourse
Electronic Code Book(ECB) | Algorithm Modes in Cryptography
 
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In this network security video tutorial we will study and understand the working of Electronic Code Block also known as ECB algorithm mode. Electronic Code Block (ECB) - 1. The simplest mode of operation 2. Plain text message is divided into blocks of 64 bits each. 3. Each such block is encrypted independently of the other blocks. 4. For all blocks same key is used for encryption. 5. If a plain text block repeats in the original messages, the corresponding cipher text block will also repeat in the encrypted message. 6. Suitable only for small messages. 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/ #ElectronicCodeBook #AlgorithmModes #NetworkSecurity #ECB #Cryptography #BlockCiphers
Views: 2919 Simple Snippets
Null Cipher Code
 
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Deane shows how to use a simple code to send secret messages. SUBSCRIBE NOW http://www.youtube.com/subscription_center?add_user=CuriosityShow CONNECT WITH CURIOSITY Facebook ➤ http://www.facebook.com/CuriosityShow Twitter ➤ https://twitter.com/CuriosityShow Curiosity Show ➤ www.curiosityshow.com.au
Views: 10825 CuriosityShow
Caesar Cipher
 
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Fill in the table using the Caesar cipher. (a) Encrypt the message ATTACK AT DAWN using the Caesar cipher. (b) Decrypt the message WKLV LV IXQ using the Caesar cipher.
Views: 37392 MathAfterMath
Ciphers, Codemakers & Codebreakers (National Treasure documentary)
 
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Excerpt from documentary made for the National Treasure DVD.
Views: 11938 Jill Demby Guest
Math for Liberal Studies: Decoding a Message Using the Bifid Cipher
 
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In this video, we work through an example decoding a message using the bifid cipher. For more info, visit the Math for Liberal Studies homepage: http://webspace.ship.edu/jehamb/mls/index.html
Views: 14905 James Hamblin
25 Famously Unsolved Ciphers And Codes That You Won't Be Able To Break
 
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From ancient languages to modern cryptographic challenges released by government agencies like the CIA these are 25 famously unsolved ciphers and codes that you won't be able to break. https://twitter.com/list25 https://www.facebook.com/list25 http://list25.com Check out the text version too! - http://list25.com/25-famously-unsolved-ciphers-and-codes-that-you-wont-be-able-to-break/ Here's a preview: Beale Ciphers Voynich Manuscript Zodiac Killer Ciphers Kryptos Dorabella Cipher D'Agapeyeff Cipher Linear A The Phaistos Disk Chinese "Gold Bar" ciphers Indus Script Richard Feynman's Challenge Ciphers Enigma Encryption system Pigeon Cipher Rongo Rongo Script of Easter Island Vinča / Old European Proto-Elamite Rohonc Codex Taman Shud McCormick Cipher Chaocipher Shugborough Inscription Navajo Code Talkers Blitz Ciphers Bellaso Ciphers Bacon Cipher
Views: 202015 list25
Enigma II Encryption Machine & Puzzle - encode & decode cipher
 
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AVAILABLE AT http://www.creativecrafthouse.com/index.php?main_page=product_info&cPath=137&products_id=964 This is an encryption machine that will allow you to encrypt your own messages and in addition we have provided 8 secret messages for you to try and solve. Send and receive secret messages to anyone who has a machine. its quite easy to use but creates messages that can be extremely complex to decode. Hardwood construction with gears cut from ¼” thick wood. All letters and text are deeply laser engraved into the wood. The gears turn on alloy steel pins. Made in USA and designed to last a lifetime. Available in 2 different sizes. The larger one measures approx. 12.75” x 4.5” x 1”. Each gear is approx. 3.75” in diameter . The smaller size measures 9.4” x3.2” x 1”. Each gear is approx. 3.75” in diameter) Avail at CreativeCrafthouse.com We have also recently done the Confederate Army Cipher, the Union Army Cipher (used for flag signaling) and th Mexican Army Cipher
Views: 46889 dj51florida
What is Zodiac's 340-Character Cipher?  2018 ACA Presentation
 
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This is my talk given on September 8, 2018 at the annual convention of the American Cryptogram Association in Hendersonville, NC. In it I try to talk about all the things I've learned about the unsolved 340-character cipher sent by the notorious Zodiac Killer almost 50 years ago. Read more about the ciphers at http://zodiackillerciphers.com Follow me on twitter at https://twitter.com/doranchak
Views: 13129 David Oranchak
Letter Frequency of Ciphers
 
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This video is part of the Udacity course "Intro to Information Security". Watch the full course at https://www.udacity.com/course/ud459
Views: 7598 Udacity
Cryptology - Part 3: Bacon's Cipher
 
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The video clearly explains Bacon's cipher / Baconian cipher in encoding and decoding secret messages. www.learncryptology.appspot.com www.chukwuemeka-samuel.appspot.com www.samuelchukwuemeka.com
Views: 846 Samuel Chukwuemeka
The Enigma Code
 
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An elementary introduction to the way the famous Enigma code used by the Germans during WWII. David Perry explains some of the history and the mathematics behind the code. This is part of an outreach program sponsored by NSF-VIGRE at UC Davis.
Views: 325193 UC Davis
Vigenere Cipher - Decryption (Known Key)
 
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This video shows how to decrypt the ciphertext when the key is known. Decryption (unknown key): http://youtu.be/LaWp_Kq0cKs Encryption: http://youtu.be/izFivfLjD5E
Views: 27351 Theoretically
Applied Cryptography: Cracking the substitution Cipher  (1/2)
 
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Previous video: https://youtu.be/SYEiNsYOhE8 Next video: http://youtu.be/nQGh3e_Wa4A
Views: 2398 Leandro Junes
The Hunt for the Zodiac Killer: Codebreaking 101 | History
 
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Kevin Knight describes how a team developed a high-tech codebreaking AI called Carmel to crack the Zodiac cypher. Subscribe for more from Hunt for the Zodiac Killer and other great HISTORY shows: http://www.youtube.com/subscription_center?add_user=historychannel Find out more about the show and watch full episodes on our site: http://www.history.com/shows/the-hunt-for-the-zodiac-killer Newsletter: https://www.history.com/newsletter Website - http://www.history.com Facebook - https://www.facebook.com/History Twitter - https://twitter.com/history The Hunt for the Zodiac Killer Season 1 Episode 1 On "The Hunt for the Zodiac Killer," LAPD homicide detective Sal LaBarbera and a team of master codebreakers use their unrivaled expertise to bring the most mysterious serial killer in American history into the light. HISTORY®, now reaching more than 98 million homes, is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manner across all platforms. The network’s all-original programming slate features a roster of hit series, epic miniseries, and scripted event programming. Visit us at HISTORY.com for more info.
Views: 80908 HISTORY
The Secrets of Gravity Falls - - [ Hidden Messages, Codes, & More! ]
 
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Some of my favorite secrets about Disney's Gravity falls. Obviously I'm not the first to make a video on this topic, but I wanted to make a more comprehensive & visual compilation of SOME (not all) of the hidden content in the Gravity Falls Universe! Talk more toons with me on Facebook: http://www.facebook.com/lewtoons GF Theme song covers: Music Box Cover: http://www.youtube.com/watch?v=SNzu1YPBPBs 8bit Cover: http://www.youtube.com/watch?v=4NXGKUXrw0U Wendy Art (And more cool toon art): http://thearenddude.deviantart.com/art/Gravity-Falls-Wendy-320959367 { all clips belong to their respective owners }
Views: 5631139 Lewtoons
Affine Cipher Encryption
 
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gcd: https://www.youtube.com/watch?feature=player_detailpage&v=WA4nP-iPYKE Decryption: http://youtu.be/XFxFPBKFVe8
Views: 26349 Theoretically
Codes & Ciphers
 
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'Codes & Ciphers Access to the Presentation, http://tinyurl.com/oljyc2d ******************************************************* Courtesy of WCGS Photographers' Society *******************************************************
Vigenere Cipher Encryption and Decryption in Java
 
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Vigenère Cipher in Java 01:48 - Input Message and Key 02:38 - Mapping Key to Message 06:02 - Creating Vigenere Table 08:37 - Encryption 10:26 - Decryption 12:00 - key row to letter head of column 14:26 - Testing the working of cipher -*- Support on Patreon: https://www.patreon.com/voxelpixel -*- Support me with BTC: 1MGUkGsQ3UAkGpH3bCch6o3mRsYP4Hn683 -*- Support me with ETH: 0x6AC343664b66a678eF90CE9379B5c9F08d98e1e5 -*- Support me with BCH: qr0yl65hkc8vzuu60x2wzdp4rhfr997s2qghswrt4p -*- Source Code: https://github.com/VoxelPixel Hi!! In this video I'll be coding vigenère cipher encryption and decryption using Java Vigenère Cipher is a form of polyalphabetic subsitution, its algorithm is as following: - Take plaintext and a key - repeat key till its total length is equal to plaintext. - create a 26x26 table containing letters of alphabets, from second row, each row's letters r shifted to left by one position --Encryption-- - To encrypt, take a letter in plaintext along with its corresponding letter in key - use plaintext letter as column index and key's letter as row of vigenère table - row-column intersection's value is the ciphertext letter --Decryption-- - To decrypt, take a letter in ciphertext along with its corresponding letter in key - use key's letter as row index and letter heading of column which contains cipher letter is the required plain text
Views: 2636 VoxelPixel
cryptography - Breaking the Vigenere Cipher
 
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cryptography To get certificate subscribe: https://www.coursera.org/learn/cryptography ======================== Playlist URL: https://www.youtube.com/playlist?list=PL2jykFOD1AWb07OLBdFI2QIHvPo3aTTeu ============================ Youtube channel: https://www.youtube.com/user/intrigano ============================ https://scsa.ge/en/online-courses/ https://www.facebook.com/cyberassociation/
Views: 5558 intrigano
How to Cipher & Decipher Codes
 
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In this video I share the basic concepts of ciphering & deciphering a coded message. Sending secret messages & decoding them is an essential skill for spies.
Views: 44 Badass Mindset
The Zodiac Ciphers - What do we know, and when do we stop trying to solve them?
 
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http://zodiackillerciphers.com This is a talk I gave at the 2015 Cryptologic History Symposium on October 22, 2015. I've been studying the Zodiac ciphers for a while now, and this presentation is a culmination of my research. The talk was part of the "Ciphers and Crime" panel moderated by FBI historian John Fox. Fellow panelists included FBI Cryptanalysis and Racketeering Records Unit chief Dan Olson and encryption technology author Klaus Schmeh. For much more information about the Zodiac Ciphers, please visit http://zodiackillerciphers.com Some bits of the audio dropped out due to technical issues with my sound recorder - apologies for the parts that are hard to understand! BONUS MATERIAL: At the end of the video, I recorded some new material on miscellaneous things I didn't have time to include in the presentation. ERRATA: At 28m59s, I say the 408 is missing a word or phrase between parts 1 and 2. But actually it is missing between parts 2 and 3.
Views: 136604 David Oranchak
Affine Cipher Decryption - Known Key
 
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This video is the second Affine Cipher video. Decryption when the key is known. How to find multiplicative inverse (x^-1 mod n): https://www.youtube.com/watch?v=K5nbGbN5Trs Encryption: http://youtu.be/_E8rSP0uAIY
Views: 24562 Theoretically
Mysterie - De Beale Cipher Code
 
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Wie lost het mysterie van de Beale Cipher Code op en vind de verloren schat?
Views: 886 Raar Maar Waar