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Walkthrough of Diffie-Hellman Key Exchange Watch the next lesson: 🤍 Missed the previous lesson? 🤍 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 🤍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: 🤍 Subscribe to Khan Academy: 🤍
Correction : as oodles of commenters have pointed out, the clock face should go from 0 to n-1. Also, worth reminding people that Mike has simplified the notation in this video (as he mentions). Mike explains the mathematics behind one of the most important pieces of computer security. (Simplified version with colour mixing analogy linked below) Secret key Exchange (Colour Mixing) Video: 🤍 🤍 🤍 This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: 🤍 Computerphile is a sister project to Brady Haran's Numberphile. More at 🤍
How do we exchange a secret key in the clear? Spoiler: We don't - Dr Mike Pound shows us exactly what happens. Mathematics bit: 🤍 Computing Limit: 🤍 🤍 🤍 This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: 🤍 Computerphile is a sister project to Brady Haran's Numberphile. More at 🤍
In this video you'll learn about Diffie-Hellman key exchange method.
What is Diffie-Hellman key exchange: 🤍 Basics of symmetric key cryptography: 🤍 Diffie-Hellman key exchange and RSA are two common and well-known encryption algorithms that protect data from eavesdroppers. Here, we cover what each of them are and how they compare to each other. What encryption method do you favor? Share your thoughts in the comments, and remember to like and subscribe! Subscribe to Eye on Tech: 🤍 Stay up to date on the latest security news: 🤍 Follow us on Twitter: 🤍 Like us on LinkedIn: 🤍 Like us on Facebook: 🤍 #DiffieHellman #RSA #Cryptography #Encryption #EyeOnTech
The history behind public key cryptography & the Diffie-Hellman key exchange algorithm. We also have a video on RSA here: 🤍
The Diffie-Hellman protocol is the underpinning of so many other security protocols on the Internet. It's the most popular answer to the question: How do we establish a shared key over an unsecure wire? Diffie-Hellman uses a sequence of math calculations to answer that question. And in this video I'm going to prove it to you. This lesson is a free sample lesson from the the greatest TLS and SSL training course ever created. No instructor rambling on about pointless stories. No slides with massive walls of text. No time wasting. Only simple, effective, and precise explanations. Complimented with practical illustrations and visuals. 🔐 More details about the course: 🤍 🏢 Do you configure or troubleshoot TLS/SSL for work? If so, I'm willing to bet your employer would happily pay for this SSL training. Reach out if you'd like to coordinate an introduction for a bulk license purchase with your company. I'm happy to provide a generous referral bonus =) 💬 Join Practical Networking Discord 🤍 🖧 Want to learn how how data moves through a network? 🤍 0:00 - Diffie Hellman Purpose 1:10 - The Math of Diffie-Hellman (Cryptography 101) 4:03 - Using DH's Shared Secret to generate Symmetric Keys 4:27 - How secure is Diffie-Hellman? 5:55 - Outro / Try it yourself! 6:23 - Practical TLS - The best SSL/TLS course ever created Since you've made it to the bottom of the Description, here's a $100 off coupon code you can use on the full course =) YT100
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: 🤍 Symmetric keys are essential to encrypting messages. How can two people share the same key without someone else getting a hold of it? Upfront asymmetric encryption is one way, but another is Diffie-Hellman key exchange. This is part 3 in our Cryptography 101 series. Check out the playlist here for parts 1 & 2: 🤍 Tweet at us! 🤍pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode Topology vs. “a” Topology 🤍 Symmetric single-key encryption schemes have become the workhorses of secure communication for a good reason. They’re fast and practically bulletproof… once two parties like Alice and Bob have a single shared key in hand. And that’s the challenge they can’t use symmetric key encryption to share the original symmetric key, so how do they get started? Written and Hosted by Gabe Perez-Giz Produced by Rusty Ward Graphics by Ray Lux Assistant Editing and Sound Design by Mike Petrow and Meah Denee Barrington Made by Kornhaber Brown (🤍kornhaberbrown.com) Thanks to Matthew O'Connor, Yana Chernobilsky, and John Hoffman who are supporting us on Patreon at the Identity level! And thanks to Nicholas Rose, Jason Hise, Thomas Scheer, Marting Sergio H. Faester, CSS, and Mauricio Pacheco who are supporting us at the Lemma level!
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The Diffie Hellman key exchange is one of the most important developments in public-key cryptography. It is extensively used by many common protocols to securely exchange a symmetric key over an insecure channel - like the internet. Timestamps: 0:00 - Intro 2:07 - History 3:32 - Where is the Diffie-Hellman key exchange used? 9:14 - The Maths 14:45 - The Diffie-Hellman key exchange with more than two parties 15:17 - The Diffie-Hellman key exchange and RSA 17:58 - Elliptic curve Diffie-Hellman 18:42 - Diffie-Hellman and TLS 19:53 - Security considerations for the Diffie-Hellman key exchange 21:55 - Post-quantum security 23:05 - Conclusion Links: Primitive roots: 🤍 Modular operations: 🤍 Cyclic groups: 🤍 Shamir and Ronen’s paper: 🤍 Padding: 🤍
Diffie Hellman has a flaw. Dr Mike Pound explains how a man in the middle could be a big problem, unless we factor it in... Public Key Cryptography: 🤍 Elliptic Curve Cryptography: Coming Soon! 🤍 🤍 This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: 🤍 Computerphile is a sister project to Brady Haran's Numberphile. More at 🤍
Just what are elliptic curves and why use a graph shape in cryptography? Dr Mike Pound explains. Mike's myriad Diffie-Hellman videos: 🤍 🤍 🤍 This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: 🤍 Computerphile is a sister project to Brady Haran's Numberphile. More at 🤍
The Diffie-Hellman key exchange is used extensively in Internet communications today. Many web applications use this key exchange because it achieves Perfect Forward Secrecy (using ephemeral keys) which provides more security than other key exchange algorithms like RSA. In this video, John explains the Diffie-Hellman key exchange, and he walks through an example of the calculations used to make it all work. 🤍
For slides, a problem set and more on learning cryptography, visit 🤍crypto-textbook.com
Hello friends! Welcome to my channel. My name is Abhishek Sharma. #abhics789 This is the series of Cryptography and network security. Courses on my Website (Huge discounts going on) 🤍 In this video, i have explained DIFFI HELLMAN KEY EXCHANGE ALGORITHM in Cryptography and network security. #DiffiHellmanAlgo #NetworkSecurity #Cryptography diffi hellman algorithm in Cryptography what is diffi hellman algorithm Diffi Hellman algorithm best explanation diffi hellman encryption algorithm deffi helan algorithm in hindi Placement series: 🤍 If you learned something new do like and share this video with your friends and don't forget to subscribe to my channel :) There are lectures related to different subjects on this channel.Do check them out, guys. Link is given below: Placement series: 🤍 computer graphics: 🤍 engineering economics: 🤍 Cryptography : 🤍 .Net C# : 🤍 Pointers in C : 🤍 Linked List for Interviews : 🤍 Java Tricky videos/programs for interviews : 🤍 File Handling in C : 🤍 pointers playlist: 🤍 C Programming tips and tricks: 🤍 Abhishek VLOGS : 🤍 Concerts : 🤍
This Algorithm is used to exchange the secret /symmetric key between sender and receiver. This exchange of key can be done with the help of public key and private key step 1 Assume prime number p step 2 Select a such that a is primitive root of p and a less than p step 3 Assume XA private key of user A step 4 Calculate YA public key of user A with the help of formula step 5 Assume XB private key of user B step 6 Calculate YB public key of user B with the help of formula step 7 Generate K secret Key using YB and XA with the help of formula at Sender side. step 8 Generate K secret Key using YA and XB with the help of formula at Receiver side.
Support Simple Snippets by Donations - Google Pay UPI ID - tanmaysakpal11🤍okicici PayPal - paypal.me/tanmaysakpal11 - In this video tutorial we will study and understand the working of Diffie-Hellman Key exchange algorithm. Symmetric Key Echange Problem - 1. Key exchange solution is not fool proof or is not practically possible. 2. This problem is called as key distribution or key exchange problem. 3. It is inherently linked with the symmetric key cryptography Diffie-Hellman Key Exchange/ Agreement Algorithm - 1. Two parties, can agree on a symmetric key using this technique. 2. This can then be used for encryption/ decryption. 3. This algorithm can be used only for key agreement, but not for encryption or decryption. 4. It is based on mathematical principles Diffie Hellman Algorithm Steps - 1. Firstly Alice and Bob mutually agree on 2 large prime numbers, n & g. These 2 numbers need not be kept secret. 2. Alice chooses another large random number x(private to her) and calculates A such that A = g^x mod n. 3. Alice sends this number A to Bob. 4. Bob independently chooses another large random number y(private to him) and calculates B such that B = g^y mod n. 5. Bob sends this number B to Alice. 6. Alice now computes her private key value K1 as: K1 = B^x mod n. 7. Bob computes his private key value K2 as: K2 = A^y mod n. 8. K1 K2 (key exchange done successfully) Complete Network Security / Information Security Playlist - 🤍 Download my FREE Network Security Android App - 🤍 Simple Snippets Official Website - 🤍 Simple Snippets on Facebook - 🤍 Simple Snippets on Instagram - 🤍 Simple Snippets on Twitter - 🤍 Simple Snippets Google Plus Page - 🤍 Simple Snippets email ID - simplesnippetsinfo🤍gmail.com For More Technology News, Latest Updates and Blog articles visit our Official Website - 🤍
🔵Edureka Cyber Security Masters Program: 🤍 🔥Edureka CompTIA Security+ Certification Training: 🤍 This Edureka video teaches Diffie-Helman algorithm which is used to exchange the symmetric key between sender and receiver. The exchange of keys is done using a mathematical calculation individually at both ends. 🔵CyberSecurity Certification Training : 🤍 Subscribe to our channel to get video updates. Hit the subscribe button above. Cyber Security Tutorial Videos: 🤍 - Instagram: 🤍 Facebook: 🤍 Twitter: 🤍 LinkedIn: 🤍 - About Edureka Cyber Security Training Cybersecurity is the combination of processes, practices, and technologies designed to protect networks, computers, programs, data and information from attack, damage or unauthorized access. Edureka’s Cybersecurity Certification Course will help you in learning about the basic concepts of Cybersecurity along with the methodologies that must be practiced ensuring information security of an organization. Starting from the Ground level Security Essentials, this course will lead you through Cryptography, Computer Networks & Security, Application Security, Data & Endpoint Security, idAM (Identity & Access Management), Cloud Security, Cyber-Attacks and various security practices for businesses. Why Learn Cyber Security? Cybersecurity is the gathering of advances that procedures and practices expected to ensure systems, PCs, projects and information from assault, harm or unapproved get to. In a processing setting, security incorporates both cybersecurity and physical security, it is imperative since cyberattackers can without much of a stretch take and obliterate the profoundly grouped data of governments, defense offices and banks for which the results are huge so it is essential to have an appropriate innovation which an avoid digital wrongdoings. - Objectives of Edureka Cyber Security Course This course is designed to cover a holistic & a wide variety of foundational topics of the cybersecurity domain which will be helpful to lead freshers as well as IT professional having 1 to 2 years of experience, into the next level of choice such as ethical hacking/ audit & compliance / GRC/ Security Architecture and so on This course focuses mainly on the basics concepts of Cyber Security In this course, we are going to deal with Ground level security essentials cryptography, computer networks & security, application security, data & endpoint security, idAM (identity & access management), cloud security, cyber-attacks and various security practices for businesses This course will be your first step towards learning Cyber Security Who Should go for this Training? Anyone having the zeal to learn innovative technologies can take up this course. Especially, students and professionals aspiring to make a career in the Cybersecurity technology. However, Cybersecurity Certification Course is best suited for the below-mentioned profiles:- Networking Professionals Linux Administrators - For more information, Please write back to us at sales🤍edureka.co or call us at IND: 9606058406 / US: 18338555775 (toll free).
A short video I put together that describes the basics of the Elliptic Curve Diffie-Hellman protocol for key exchanges. There is an error at around 5:30 where I state that the point at infinity is the result of point-doubling a point whose X coordinate is zero. This is incorrect, it should be when the Y coordinate is zero. Also I state 'geographically' instead of 'geometrically'.
In this video we will be understanding 1. What is the key exchange problem 2. How Diffie Hellman Key Exchange Algorithm solves it.
This video covers diffie hellman key exchange algorithm with examples and man in the middle attack with example. See Complete Playlists: Network Security OR Cryptography 🤍 TOC/Flat: 🤍 Technical Mcqs: 🤍 Design and analysis of algorithms: 🤍 python: 🤍 Data Structures: 🤍 Advanced Data Structures: 🤍 Machine Learning: 🤍 Operating Systems: 🤍 Java Programming: 🤍 C: 🤍 Programs on c: 🤍 Computer Graphics: 🤍
Man in the middle attack in Diffie Hellman Key Exchange | Prevention against Man in Middle Attack Follow my blog: 🤍 In this video, I have explained "Man-in-the-middle Attack during Diffie- Hellman Key Exchange Algorithm". Also covered Introduction of Man-in-the Middle Attack and Prevention techniques against Man-in-the-Middle attack. Topic Covered in this video: 1. What is Man in the middle attack? 2. Purpose of man in the middle attack 3. Purpose of Diffie-hallman Key exchange algorithm 4. How man in the middle attack take place in diffie-hellman key exchange algorithm 0:00 Introduction 0:14 Purpose of man in the middle attack 3:09 Purpose of diffie-hellman key exchange algorithm 3:35 How man in the middle attack take place in diffie-hellman key exchange algorithm 10:28 Prevention against man in the middle attack #Man_in_the_middle_attack #Man_in_the_middle_attack_in_Diffie_Hellman_Key_Exchange #Prevention_against_man_in_the_middle_attack #chiragbhalodia #chirag_bhalodia
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Diffie Hellman Key Exchange Algorithm | Diffie Hellman key exchange algorithm example and solution Follow my blog : 🤍 In this video, I have covered Diffie-Hellman key exchange algorithm explanation with example. How to find out secret value in Diffie-Hellman key exchange algorithm? Some exercises given in video, you should find out solution and write your answer in comment section. #Diifie_Hellman_Key_exchange_Algorithm #Example_of_Diffie_Hellman_key_exchange_algirhtm #Find_secret_key_using_Diffie_Hellman_key_Exchange_Algorithm #chiragbhalodia #chirag_bhalodia
In this video you will learn the how to implement #Diffie-Hellman key exchange, to generate a shared secret between two clients, which then can be used to exchange #end-to-end encrypted messages. The implementation is inside a nodejs application, we will be using the #crypto module which is built inside #nodejs. ⭐ Kite is a free AI-powered coding assistant that will help you code faster and smarter. The Kite plugin integrates with all the top editors and IDEs to give you smart completions and documentation while you’re typing. I've been using Kite for 6 months and I love it! 🤍 Github(Diffie-Hellman tutorial): 🤍 Diffie–Hellman key exchange(Wiki): 🤍 MODP DH Groups: 🤍 Wikipedia (primitive root modulo): 🤍 ——————————————— Other useful Videos ——————————————— Diffie Hellman analogy: 🤍 Diffie Hellman Mathematics: 🤍 Diffie Hellman Nodejs: 🤍 Elliptic-Curve Diffie-Hellman (ECDH): 🤍 AES (Advanced Encryption Standard): 🤍 ECDH + AES 256 (CBC): 🤍 ECDH + AES 256 GCM (Authenticated Encryption): 🤍 ——————————————— Other useful Playlists ——————————————— Docker: 🤍 MongoDB: 🤍 Html/Css/Js: 🤍 Android: 🤍 Firebase: 🤍 Challenges: 🤍 ——————————————— What I use ——————————————— Mouse: 🤍 Keyboard: 🤍 Keyboard 2: 🤍 Monitor: 🤍 Processor: 🤍 RAM: 🤍 Graphics: 🤍 Microphone: 🤍
We use a shared secret key in the symmetric encryption algorithm to encrypt and decrypt messages, but how to distribute the secret key between two parties? By email, snail mail, or a trusted courier? All these methods are slow, insecure, and impractical over the Internet, the insecure channel where most of our communications are to be encrypted. Diffie-Hellman Key Exchange (DHKE) protocol provides a radically new method of distributing cryptographic keys, that helped solve key distribution—a fundamental problem in cryptography. Today I will introduce DHKE and demonstrate how it works with mixing colors. Playlists: Basic Cryptography 🤍 Advanced Cryptography: 🤍 Public Key Infrastructure 🤍 Privacy Enhanced Technologies 🤍 Business continuity 🤍 Cyber Attacks and Defense 🤍 Remote Access & WAN Technologies 🤍
In this lecture diffie hellman key exchange algorithm has been explained with help of example in a very simple way. Diffie helllman key exchange technique is a popular technique in information security. Diffie hellman algorithm provides a secure way of exchanging cryptographic keys. #azcomputing #DiffieHellman #InformationSecurity
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The Diffie-Hellman Key exchange is a hallmark of cryptography and answers a question I personally though would not have an answer. Come along and figure out how to share secrets with a friend despite always being listened to. 0:00 Introducing the problem 0:51 Caesar Cipher 2:18 A Useful Function 3:59 Fast Modular Exponentiation 7:48 The Discrete Log 9:51 The Diffie Hellman Key Exchange Thank you!
2015 Turing Award recipient Whitfield Diffie tells the story of how he discovered public key cryptography and the Diffie-Hellman key exchange. Whit was first introduced to cryptography at school, but didn’t return to it until after the completion of his degree at MIT, when he was working as a researcher at the Stanford Artificial Intelligence Laboratory. He describes a chance meeting between his boss John McCarthy and Larry Roberts, where the issue of network security was first mentioned. When John returned to Stanford and explained this new problem Whit was instantly hooked. This led him to travel the country visiting researchers at Harvard, MIT, IBM Watson, and the NSA to try to learn as much as he could about cryptography. Eventually, he met Martin Hellman and as they say, the rest is history… Interview with Whitfield Diffie recorded at the 2021 Heidelberg Laureate Forum. Produced by Dr Tom Crawford at the University of Oxford. Tom is an Early-Career Teaching and Outreach Fellow at St Edmund Hall: 🤍 For more maths content check out Tom's website 🤍 You can also follow Tom on Facebook, Twitter and Instagram 🤍tomrocksmaths. 🤍 🤍 🤍 Get your Tom Rocks Maths merchandise here: 🤍 With thanks to Whitfield Diffie Heidelberg Laureate Forum Heidelberg Laureate Forum Foundation IBM IBM Research Jean Berko Gleason History Computer Stanford University