The Great Cipher (French: Grand chiffre) was a nomenclator cipher developed by the Rossignols, several generations of whom served the French monarchs as cryptographers. The Great Cipher was so named because of its excellence and because it was reputed to be unbreakable. Modified forms were in use by the French Peninsular army until the summer of 1811. After it fell out of current use, many documents in the French archives were unreadable until it was decoded. (Wikipedia).
Symmetric Key Cryptography: The Keyword Cipher
This is the second in a series about cryptography; an extremely important aspect of computer science and cyber security. It covers a substitution cipher called the keyword cipher, also known as the Vigenère cipher. It explains how a keyword, or key phrase, can be used to effectively gene
From playlist Cryptography
Symmetric Key Cryptography: The Caesar Cipher
This is the first in a series about cryptography; an extremely important aspect of computer science and cyber security. It introduces symmetric key cryptography with a well known substitution cipher, namely the Caesar Cipher. It includes a few examples you can try for yourself using diff
From playlist Cryptography
From playlist Week 2 2015 Shorts
Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist Computer - Cryptography and Network Security
Perfect Cipher - Applied Cryptography
This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
From playlist Applied Cryptography
Otp And Quantum Crypto - Applied Cryptography
This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
From playlist Applied Cryptography
Block Ciphers and Data Encryption Standard (DES): Part 2
Fundamental concepts of Block Cipher Design Principles are discussed. Differential cryptanalysis and linear cryptanalysis are explained.
From playlist Network Security
Modern Symmetric Ciphers - Applied Cryptography
This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
From playlist Applied Cryptography
Cryptanalysis of Classical Ciphers
Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
From playlist Computer - Cryptography and Network Security
Follow-up: Barbie electronic typewriter
Here is a copy of the description from the Barbie video: ---- I first found this story on the crypto museum website, which has great information about the Barbie typewriter (and other cipher machines) https://www.cryptomuseum.com/crypto/mehano/barbie/ ------- Thanks to Sarah Everett fr
From playlist My Maths Videos
The Barbie electronic typewriter - with Just My Typewriter
I first found this story on the crypto museum website, which has great information about the Barbie typewriter (and other cipher machines) https://www.cryptomuseum.com/crypto/mehano/barbie/ ------- Thanks to Sarah Everett from Just My Typewriter, check out her channel here: https://www.y
From playlist My Maths Videos
Clip 4/7 Speaker: Erik Tews What has changed in DECT security after one year After dedected.org was published on 25C3, lots has changed in DECT security. For more information go to: http://events.ccc.de/congress/2009/Fahrplan/events/3648.en.html
From playlist 26C3: Here be dragons day 3
Fishy Codes: Bletchley's Other Secret - Computerphile
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
From playlist Subtitled Films
DEFCON 19: Speaking with Cryptographic Oracles
Speaker: Daniel Crowley Application Security Consultant, Trustwave - SpiderLabs Cryptography is often used to secure data, but few people have a solid understanding of cryptography. It is often said that if you are not strictly a cryptographer, you will get cryptography wrong. For that ma
From playlist DEFCON 19
25c3: An introduction to new stream cipher designs
Speaker: Tor E. Bjørstad Turning data into line noise and back Even with "nothing to hide", we want to protect the privacy of our bits and bytes. Encryption is an important tool for this, and stream ciphers are a major class of symmetric-key encryption schemes. Algorithms such as RC4 (us
From playlist 25C3: Nothing to hide
Yes, You Too Can Break Crypto: Exploiting Common Crypto Mistakes
Cryptography is tricky. Sure, everybody knows not to roll out their own crypto, but is it enough? Are the standard algorithms, libraries, and utilities always used the right way? This is of course a rhetorical question! Humans keep making mistakes that other humans can exploit, and Murphy’
From playlist Security
The Art and Science of Secret Messages: Some Glimpses (ONLINE) by Geetha Venkataraman
KAAPI WITH KURIOSITY THE ART AND SCIENCE OF SECRET MESSAGES: SOME GLIMPSES (ONLINE) SPEAKER: Geetha Venkataraman (Dr. B. R. Ambedkar University Delhi, Delhi) WHEN: 4:00 pm to 5:30 pm Sunday, 19 September 2021 WHERE: Livestream via the ICTS YouTube channel Abstract:- In the modern worl
From playlist Kaapi With Kuriosity (A Monthly Public Lecture Series)
Cryptography - CS50 for Lawyers 2019
00:00:00 - Introduction 00:00:15 - Cryptography 00:01:25 - Ciphers 00:02:25 - Substitution Cipher 00:09:25 - Caesar Cipher 00:11:08 - Vigenere Cipher 00:17:52 - Substitution Cipher 00:18:20 - Frequency Analysis 00:20:20 - Ciphers (continued) 00:22:20 - Hashes 00:25:46 - Hash Function 00:32
From playlist CS50 for Lawyers 2019
Doggie Aggression (Full Episode) | Cesar Millan: Better Human, Better Dog
Cesar intervenes when dog brothers draw blood - a Doberman who continuously causes fights with his packmate and a Jindo-Pit Mix that’s a nervous wreck. ➡ Subscribe: http://bit.ly/NatGeoWILDSubscribe ➡ Get more Nat Geo Wild Full Episodes: https://youtu.be/qAG2SkTPltw ➡ Get more Nat Geo Ful
From playlist Cesar Millan | National Geographic
Block Ciphers and Data Encryption Standard (DES) - Part 1
Fundamental concepts of Block Cipher Design Principles are discussed. DES is presented. Differential and linear cryptanalysis are explained . Block Cipher Principles Data Encryption Standard (DES) Differential and Linear Cryptanalysis Block Cipher Design Principles
From playlist Network Security