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Elliptic Curve Cryptography & Diffie-Hellman
 
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Today we're going over Elliptic Curve Cryptography, particularly as it pertains to the Diffie-Hellman protocol. The ECC Digital Signing Algorithm was also discussed in a separate video concerning Bitcoin's cryptography.
Views: 50055 CSBreakdown
Blockchain tutorial 11: Elliptic Curve key pair generation
 
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This is part 11 of the Blockchain tutorial explaining how the generate a public private key using Elliptic Curve. In this video series different topics will be explained which will help you to understand blockchain. Bitcoin released as open source software in 2009 is a cryptocurrency invented by Satoshi Nakamoto (unidentified person or group of persons). After the introduction of Bitcoin many Bitcoin alternatives were created. These alternate cryptocurrencies are called Altcoins (Litecoin, Dodgecoin etc). Bitcoin's underlying technology is called Blockchain. The Blockchain is a distributed decentralized incorruptible database (ledger) that records blocks of digital information. Each block contains a timestamp and a link to a previous block. Soon people realises that there many other use cases where the Blockchain technology can be applied and not just as a cryptocurrency application. New Blockchain platforms were created based on the Blockchain technology, one of which is called Ethereum. Ethereum focuses on running programming code, called smart contracts, on any decentralized application. Using the new Blockchain platforms, Blockchain technology can be used in supply chain management, healthcare, real estate, identity management, voting, internet of things, etcetera, just to name a few. Today there is a growing interest in Blockchain not only in the financial sector but also in other sectors. Explaining how Blockchain works is not easy and for many the Blockchain technology remains an elusive concept. This video series tries to explain Blockchain to a large audience but from the bottom up. Keywords often used in Blockchain conversation will be explained. Each Blockchain video is short and to the point. It is recommended to watch each video sequentially as I may refer to certain Blockchain topics explained earlier. Check out all my other Blockchain tutorial videos https://goo.gl/aMTFHU Subscribe to my YouTube channel https://goo.gl/61NFzK The presentation used in this video tutorial can be found at: http://www.mobilefish.com/developer/blockchain/blockchain_quickguide_tutorial.html The presentation used in this video tutorial can be found at: http://www.mobilefish.com/developer/blockchain/blockchain_quickguide_tutorial.html The python script used in the video: https://www.mobilefish.com/download/cryptocurrency/bitcoin_ec_key_generation.py.txt Cryptocurrency address generator and validator: https://www.mobilefish.com/services/cryptocurrency/cryptocurrency.html Desmos graph: https://www.desmos.com/calculator/kkj2efqk5x James D'Angelo, Bitcoin 101 Elliptic Curve Cryptography Part 4: https://youtu.be/iB3HcPgm_FI #mobilefish #blockchain #bitcoin #cryptocurrency #ethereum
Views: 15651 Mobilefish.com
Elliptic Curve Cryptography Tutorial - Understanding ECC through the Diffie-Hellman Key Exchange
 
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Learn more advanced front-end and full-stack development at: https://www.fullstackacademy.com Elliptic Curve Cryptography (ECC) is a type of public key cryptography that relies on the math of both elliptic curves as well as number theory. This technique can be used to create smaller, faster, and more efficient cryptographic keys. In this Elliptic Curve Cryptography tutorial, we build off of the Diffie-Hellman encryption scheme and show how we can change the Diffie-Hellman procedure with elliptic curve equations. Watch this video to learn: - The basics of Elliptic Curve Cryptography - Why Elliptic Curve Cryptography is an important trend - A comparison between Elliptic Curve Cryptography and the Diffie-Hellman Key Exchange
Views: 17709 Fullstack Academy
Public Key Encryption: Elliptic Curve Ciphers
 
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I made a mistake ... the equation is y^2 = x^3 - 3x + 5 ... I should have said "=" Details: http://asecuritysite.com/encryption/ecc http://asecuritysite.com/comms/plot05
Views: 1581 Bill Buchanan OBE
Elliptic Curve Cryptography (ECC) Parameters and Types: secp256k1, Curve 25519, and NIST
 
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Elliptic Curves: https://asecuritysite.com/comms/plot05 Key gen: https://asecuritysite.com/encryption/ecc EC Types: https://asecuritysite.com/encryption/ecdh3
Views: 652 Bill Buchanan OBE
Elliptic Curve Cryptography Tutorial - An Introduction to Elliptic Curve Cryptography
 
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Learn more advanced front-end and full-stack development at: https://www.fullstackacademy.com Elliptic Curve Cryptography (ECC) is a type of public key cryptography that relies on the math of both elliptic curves as well as number theory. This technique can be used to create smaller, faster, and more efficient cryptographic keys. In this Elliptic Curve Cryptography tutorial, we introduce the mathematical structure behind this new algorithm. Watch this video to learn: - What Elliptic Curve Cryptography is - The advantages of Elliptic Curve Cryptography vs. old algorithms - An example of Elliptic Curve Cryptography
Views: 9061 Fullstack Academy
Java Cryptography Architecture (JCA) Overview
 
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Java Cryptography Tutorial, 1. The JCA &JCE 2. The Provider Framework 3. The Factory Framework 4. API vs API in Java 5. java.security vs javax.crypto 6.MessageDigest md5 = MessageDigest.getInstance("MD5"); Using the Provider framework MessageDigest.getInstance() example
Views: 12591 Zariga Tongy
encryption - decryption text by the elliptic curve cryptography depending on AlGammal   system
 
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Android application for encryption - decryption text by the elliptic curve cryptography depending on AlGammal system
JAVA Session Demo by ECC @ EITACIES
 
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Java session Demo by ECC [ EITACIES COMPETENCE CENTER] Team @ EITACIES Course Content: http://eitacies.com/trainings Register: http://eitacies.com/trainings-studentregistration Careers: http://eitacies.com/company-currentopportunities
Views: 250 Sunny
ECDSA Public Key from R, S and Z values
 
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Using the R,S and Z values, you can generate a public key. If the public key matches the one used in the TX input, or creates the address used in the TX Input's previous output, then it can be considered a valid transaction that was signed using the private key of the found public key. pseudocode to get public key point, pubKey = (ecPoint(K) * (S/R)) - ecPoint(Z/R)) URLs shown in this video, Example TX : https://2coin.org/index.html?txid=9ec4bc49e828d924af1d1029cacf709431abbde46d59554b62bc270e3b29c4b1 Download Code : https://github.com/Sean-Bradley/ECDSA_secp256k1_JordonMatrix_nodejs
Views: 2229 seanwasere ytbe
Tutorial: Elliptic Curve Cryptography(ECC) based Public Key Infrastructure - PKIA 2017
 
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Date: 14th November 2017 Speaker: Mr. Kunal Abhishek, Society of Electronic Transactions and Security(SETS), Chennai
Views: 164 PKIIndia
Bitcoin 101 - Elliptic Curve Cryptography - Part 5 - The Magic of Signing vesves Verifying
 
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There is nothing more magical in Bitcoin, or all of cryptography than digital signatures. And the most magical step of all is the verification. This is the step we . Vídeo original: Welcome to part four in our series on Elliptic Curve Cryptography. I this episode we dive into the development of . Congress can and should reflect the will of the people. Our research strives to achieve this goal by focusing on the institutional design of legislatures. A beginners guide to all things bitcoin.
Views: 49 Samantha Russell
High-Speed Cryptography in Java: X25519, Poly1305, and EdDSA
 
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Adam Petcher, Principal Member of Technical Staff, Oracle JDK 11 includes support for the first of a new breed of cryptographic algorithm that features improved performance, trustworthiness, and security in cloud and multitenant environments. This session describes the features and implementations of some of these algorithms: X25519 key agreement, Poly1305 authentication, and EdDSA signatures. The presentation focuses on the techniques used to develop high-performance, secure implementations of modern cryptographic algorithms in Java. No knowledge of cryptography is required, and the session should be relevant to anyone who is interested in Java performance.
Views: 251 Oracle Developers
Elliptic Curve Diffie Hellman
 
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A short video I put together that describes the basics of the Elliptic Curve Diffie-Hellman protocol for key exchanges.
Views: 108136 Robert Pierce
ECC secp256k1 full java
 
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Courbes elliptiques secp256k1 http://tea-crypt.com
Java prog#129. How to encrypt and decrypt data in Java Part 1
 
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Views: 96112 ProgrammingKnowledge
Implementation of Elliptic Curve Cryptography
 
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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
Views: 12438 nptelhrd
Image Encryption using Elliptic Curve Cryptography in MATLAB
 
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This video demonstrate the process of image encryption using elliptical curve cryptography. The complete code for it is available at https://free-thesis.com/product/image-encryption-decryption-using-ecc/. This is the code which simulates the encryption and decryption of an image using random and private keys in MATLAB. The elliptic curve cryptography is applied to achieve the security of any image before transmitting it to some one so that no other can see the data hidden in the image. At the receiver end the destined user will already have the decryption key used for this. If key is altered, image will not be decrypted.
Elliptic Curve Cryptography橢圓曲線密碼簡介與Java實作secp256k1
 
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橢圓曲線密碼簡介與Java實作secp256k1。secp256k1是bitcoin與 Ethereum等諸多密碼貨幣所使用的橢圓曲線。
Views: 1212 Anwen Deng
Implementation of Homomorphic Encryption: Paillier
 
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https://asecuritysite.com/encryption/pal_ex
Views: 1877 Bill Buchanan OBE
C# 6.0 Tutorial - Advanced - 62. How to Implement ECDsaCng Cryptography Implementation
 
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Learn more free at my blog http://www.manuelradovanovic.com If you have any question please feel free to ask. Subscribe me on YouTube, please! Thank You!
Views: 328 Manuel Radovanovic
Elliptic Curve Diffie Hellman (ECDH) with secp256k1
 
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http://asecuritysite.com/encryption/ecdh2
Views: 1022 Bill Buchanan OBE
C# 6.0 Tutorial - Advanced - 60. ECDiffieHellmanCng Cryptography, Encrypt and Decrypt
 
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Learn more free at my blog http://www.manuelradovanovic.com If you have any question please feel free to ask. Subscribe me on YouTube, please! Thank You!
Views: 792 Manuel Radovanovic
diffie hellman key exchange example java
 
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DH java example Setup diffie hellman program in java
Views: 5831 Zariga Tongy
High-Speed Cryptography in Java: X25519, Poly1305, and EdDSA
 
38:35
Adam Petcher, Principal Member of Technical Staff, Oracle JDK 11 includes support for the first of a new breed of cryptographic algorithm that features improved performance, trustworthiness, and security in cloud and multitenant environments. This session describes the features and implementations of some of these algorithms: X25519 key agreement, Poly1305 authentication, and EdDSA signatures. The presentation focuses on the techniques used to develop high-performance, secure implementations of modern cryptographic algorithms in Java. No knowledge of cryptography is required, and the session should be relevant to anyone who is interested in Java performance.
Views: 281 Oracle Developers
diffie hellman Encyption coding in java
 
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This Chanel for Education perpose, basically for Programmer.
Views: 991 ABHIJIT TAYDE
Cryptography: Public Key Encryption (RSA, Elliptic Curve and ElGamal)
 
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https://asecuritysite.com/cryptobook/crypto04
Views: 1059 Bill Buchanan OBE
Elliptic Curve Cryptography Demo on Android
 
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Elliptic Curve Cryptography Demo on Android Emulator.
Views: 767 Pival Infotech
Public Key Cryptography w/ JAVA  (tutorial 01) - Diffie-Hellman Key Exchange
 
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Demo, Write, & Test Run, including an Intro to Group, Cyclic Group, Generator, & Discrete Logarithm Problem | Website + download source code @ http://www.zaneacademy.com
Views: 735 zaneacademy
Webcast: NTRU - A Secure, High Performance Alternative to RSA or ECC
 
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This webcast, presented by William Whyte (Chief Scientist, Security Innovation) and Chris Conlon (Software Developer, wolfSSL Inc) discusses how the lattice-based NTRU algorithm works, some of its features and benefits, and the process of migrating from RSA to NTRU
Views: 1312 Security Innovation
ECC vs RSA: Battle of the Crypto-Ninjas
 
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RSA is the oldest kid in the public-key cryptography playground, and its position of toughest and fastest is under sharp competition from ECC (Elliptic Curve Cryptography). We look at the mathematical difference between the two cryptosystems, showing why ECC is faster and harder than RSA, but also very energy efficient hence its unique advantage in the mobile space. We show how to use ECC in your Java and Android applications. Before finally summarising the state of the union for RSA and ECC in the light of the Snowden leaks, and the likely near-future for public-key cryptography. Author: James McGivern A mathematician turned programmer, James has been working in the software engineer for over 5 years in various industries. He revels in problems that involve data structures or algorithms. Currently working for Cisco's Cloud Web Security group building cloud-based SaaS platform providing real-time threat detection and filtering of internet traffic. James's ambitions are to become a polymath and be a space tourist
Views: 536 Parleys
ShmooCon 2014: SafeCurves: Choosing Safe Curves for Elliptic-Curve Cryptography
 
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For more information visit: http://bit.ly/shmooc14 To download the video visit: http://bit.ly/shmooc14_down Playlist Shmoocon 2014: http://bit.ly/shmooc14_pl Speakers: Daniel J. Bernstein | Tanja Lange There are several different standards covering selection of curves for use in elliptic-curve cryptography (ECC). Each of these standards tries to ensure that the elliptic-curve discrete-logarithm problem (ECDLP) is difficult. ECDLP is the problem of finding an ECC user's secret key, given the user's public key. Unfortunately, there is a gap between ECDLP difficulty and ECC security. None of these standards do a good job of ensuring ECC security. There are many attacks that break real-world ECC without solving ECDLP. The core problem is that if you implement the standard curves, chances are you're doing it wrong: Your implementation produces incorrect results for some rare curve points. Your implementation leaks secret data when the input isn't a curve point. Your implementation leaks secret data through branch timing. Your implementation leaks secret data through cache timing. These problems are exploitable by real attackers, taking advantage of the gaps between ECDLP and real-world ECC. Secure implementations of the standard curves are theoretically possible but very hard. Most of these attacks would have been ruled out by better choices of curves that allow simple implementations to be secure implementations. This is the primary motivation for SafeCurves, http://safecurves.cr.yp.to/. The SafeCurves criteria are designed to ensure ECC security, not just ECDLP security.
Views: 1523 Christiaan008
Elliptic curves to the rescue: tackling availability and attack potential in DNSSEC
 
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Speaker: Roland van Rijswijk-Deij, SURFnet Over the past decade, we have seen the gradual rollout of DNSSEC across the name space, with adoption growing slowly but steadily. While DNSSEC was introduced to solve security problems in the DNS, it is not without its own problems. In particular, it suffers from two big problems: 1) Use of DNSSEC can lead to fragmentation of DNS responses, which impacts the availability of signed domains due to resolvers being unable to receive fragmented responses and 2) DNSSEC can be abused to create potent denial-of-service attacks based on amplification. Arguably, the choice of the RSA cryptosystem as default algorithm for DNSSEC is the root cause of these problems. RSA signatures need to be large to be cryptographically strong. Given that DNS responses can contain multiple signatures, this has a major impact on the size of these responses. Using elliptic curve cryptography, we can solve both problems with DNSSEC, because ECC offers much better cryptographic strength with far smaller keys and signatures. But using ECC will introduce one new problem: signature validation - the most commonly performed operation in DNSSEC - can be up to two orders of magnitude slower than with RSA. Thus, we run the risk of pushing workload to the edges of the network by introducing ECC in DNSSEC. This talk discusses solid research results that show 1) the benefits of using ECC in terms of solving open issues in DNSSEC, and 2) that the potential new problem of CPU use for signature validation on resolvers is not prohibitive, to such an extent that even if DNSSEC becomes universally deployed, the signature validations a resolver would need to perform can easily be handled on a single modern CPU core. Based on these results, we call for an overhaul of DNSSEC where operators move away from using RSA to using elliptic curve-based signature schemes.
Views: 342 TeamNANOG
RSA Key Generation, Signatures and Encryption using OpenSSL
 
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Demonstration of using OpenSSL to create RSA public/private key pair, sign and encrypt messages using those keys and then decrypt and verify the received messages. Commands used: openssl. Created by Steven Gordon on 7 March 2012 at Sirindhorn International Institute of Technology, Thammasat University, Thailand.
Views: 60553 Steven Gordon
Diffie Hellman
 
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Check out our website: http://www.telusko.com Follow Telusko on Twitter: https://twitter.com/navinreddy20 Follow on Facebook: Telusko : https://www.facebook.com/teluskolearnings Navin Reddy : https://www.facebook.com/navintelusko Follow Navin Reddy on Instagram: https://www.instagram.com/navinreddy20 Subscribe to our other channel: Navin Reddy : https://www.youtube.com/channel/UCxmkk8bMSOF-UBF43z-pdGQ?sub_confirmation=1 Telusko Hindi : https://www.youtube.com/channel/UCitzw4ROeTVGRRLnCPws-cw?sub_confirmation=1
Views: 4823 Telusko
NETWORK SECURITY - HMAC ALGORITHM
 
20:58
www.youtube.com/c/sundeepsaradhi
Fast Secure Two Party ECDSA Signing
 
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Paper by Yehuda Lindell presented at Crypto 2017. See https://iacr.org/cryptodb/data/paper.php?pubkey=28210
Views: 694 TheIACR
RSA Algorithm concept and Example
 
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Enroll to Full Course: https://goo.gl/liK0Oq Networks#4: The video explains the RSA Algorithm (public key encryption) Concept and Example along with the steps to generate the public and private keys. The video also provides a simple example on how to calculate the keys and how to encrypt and decrypt the messages. For more, visit http://www.EngineeringMentor.com. FaceBook: https://www.facebook.com/EngineeringMentor. Twitter: https://www.twitter.com/Engi_Mentor
Views: 160419 Skill Gurukul
Elliptic Curve ElGamal Cryptosystem
 
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In this video I primarily do through the Elliptic Curve ElGamal crytposystem (Bob's variables/computations, Alice's variables/computations, what is sent, and how it is decrypted by Bob). In addition, I go over the basics of elliptic curves such as their advantages and how they are written. Digital Signatures - ElGamal: https://www.youtube.com/watch?v=Jo3wHnIH4y832,rpd=4,rpg=7,rpgr=0,rpm=t,rpr=d,rps=7 Reference: Trappe, W., & Washington, L. (2006). Introduction to cryptography: With coding theory (2nd ed.). Upper Saddle River, N.J.: Pearson Prentice Hall.
Views: 9109 Theoretically
RegEx Java UNICODE support
 
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Как включить поддержку юникода в джаве, при использовании регулярных выражений
Views: 522 Sergey Orlov
PWLSF - 7/2017 - Kevin Burke on Curve25519 and Fast Public Key Cryptography
 
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Special thanks to Stitch Fix for hosting this event! Mini ==== Tyler McMullen on Delta CRDTs Tyler will do his best to summarize and get you hooked on the three papers listed below: • https://arxiv.org/pdf/1410.2803.pdf • https://arxiv.org/pdf/1603.01529.pdf • http://dl.acm.org/citation.cfm?id=2911163 Tyler's Bio Tyler McMullen is CTO at Fastly, where he’s responsible for the system architecture and leads the company’s technology vision. As part of the founding team, Tyler built the first versions of Fastly’s Instant Purging system, API, and Real-time Analytics. Before Fastly, Tyler worked on text analysis and recommendations at Scribd. A self-described technology curmudgeon, he has experience in everything from web design to kernel development, and loathes all of it. Especially distributed systems. Main Talk ==== Kevin Burke on "Curve25519 and fast public key cryptography" ( https://cr.yp.to/ecdh/curve25519-20060209.pdf ) Kevin's Bio Kevin Burke (https://burke.services) likes building great experiences. He helped scale Twilio and Shyp, and currently runs a software consultancy. Kevin once accidentally left Waiting for Godot at the intermission.
Views: 652 PapersWeLove
Petya ECDH key exchange
 
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Petya Elliptic Curve Diffie-Hellman key exchange. Now you can enjoy the elliptic curve encryption experience with a smooth elevator bossa nova! More information about Petya: https://labsblog.f-secure.com/2016/04... Online ECDH form: http://www-cs-students.stanford.edu/~...

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