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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/~...
rfid via ecdsa
 
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Verifing card Via ECDSA. Testing response on Cortex-M0 ..... All code size 21kb.
Views: 161 Petr Styx
AES Algorithm - Part 3 - 192 Bit Encryption/Decryption
 
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Understand 192Bit Encryption and Decryption in AES algorithm, the easy way using MS Excel. Download "AES192-EncrDecr.xlsx" from the http://netzts.in/card-reconciliation-downloads/cryptography-blog-downloads/ Download "NIST.FIPS.197.pdf" from https://csrc.nist.gov/publications/fips listed under number 197 AES Algorithm - Part 1 - Key Expansion video link : https://youtu.be/MTZe1HB0fJ4 AES Algorithm - Part 2 - 128 Bit Encryption/Decryption video link: https://youtu.be/OEW4Ho1i6Wk Watch our 5 part DES Algorithm videos from the links given below: 1. DES Algorithm Part-1 preliminaries of Encryption : https://www.youtube.com/watch?v=JT91GJs1cjA 2. DES Algorithm - Part 2 - The KEYs : https://www.youtube.com/watch?v=mn5y93zxMs0 3. DES Algorithm - Part 3 – Encryption : https://www.youtube.com/watch?v=Lzi6W1XGKeA 4. DES Algorithm - Part 4 – Decryption : https://www.youtube.com/watch?v=Bj47jX1i4-M 5. DES Algorithm - Part 5 - 3DES : https://www.youtube.com/watch?v=CvpuGr5kERQ
Quantum Cryptography Explained
 
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This episode is brought to you by Squarespace: http://www.squarespace.com/physicsgirl With recent high-profile security decryption cases, encryption is more important than ever. Much of your browser usage and your smartphone data is encrypted. But what does that process actually entail? And when computers get smarter and faster due to advances in quantum physics, how will encryption keep up? http://physicsgirl.org/ ‪http://twitter.com/thephysicsgirl ‪http://facebook.com/thephysicsgirl ‪http://instagram.com/thephysicsgirl http://physicsgirl.org/ Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator/Editor: Dianna Cowern Writer: Sophia Chen Animator: Kyle Norby Special thanks to Nathan Lysne Source: http://gva.noekeon.org/QCandSKD/QCand... http://physicsworld.com/cws/article/n... https://epic.org/crypto/export_contro... http://fas.org/irp/offdocs/eo_crypt_9... Music: APM and YouTube
Views: 272436 Physics Girl
КриптоАРМ. Протокол проверки подписи
 
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Как сформировать протокол проверки подписи в формате PDF
Introduction to Cryptoeconomics - Vitalik Buterin
 
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Slides: http://vitalik.ca/files/intro_cryptoeconomics.pdf
Views: 42081 Ethereum Foundation
Sage Worksheet Intro
 
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Recorded with http://screencast-o-matic.com
Views: 123 Tim Melvin
How are public key, private key and address used in Bitcoin: Simply explained for beginners
 
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More about elliptic curve cryptography as promised: https://arstechnica.com/information-technology/2013/10/a-relatively-easy-to-understand-primer-on-elliptic-curve-cryptography/ 🎓 Want to learn more? Get the most recommended online blockchain course for beginners and become a certified blockchain expert now for only $10. https://www.udemy.com/become-a-blockchain-expert-course-i-beginner-level/?couponCode=YOUTUBE95OFF At the end of this course, you will: Become one of the first blockchain experts and excel beyond your competitors 👨‍🎓👩‍🎓 Create powerful conversations regarding blockchain comfortably 💬 Earn BE I certificate and make your expert status official 🏅 Access a PDF file that contains every lecture summary 📜 Get your Linkedin profile endorsed by me ✔️ Ace the blockchain job interview 🕺💃💯 Learn Blockchain, Bitcoin, Cryptocurrency, Coins, Wallets, Mining, Exchanges from the best blockchain course for beginners! 📚 Full contents of the course include: Bitcoin and how it works 🤑 Blockchain and how it works 🔗 How money evolved into bitcoin 💰 Cryptocurrency, coin, token, altcoin 🔒💸 Hot wallet vs cold storage 🔥👛 ❄️💼 Software, hardware and paper wallets 💿🖨️👛 Desktop, mobile and web wallets 💻📱🌐👛 Public key, private key and address 🔑🔐📬 Cryptocurrency mining ⛏️ Hash rate and hash power 💪 ASIC mining devices 🖥️ Methods of cryptocurrency mining 📒⛏️ Mining pools and how to choose the best ⛏️🏊‍♀️ What you need to mine cryptocurrencies 🔦 Profitability calculation in mining 📈 Cryptocurrency exchanges and how to choose the best 💱 Market order, limit order, conditional order 📣 Bid and ask, maker and taker 🙏 How to buy cryptocurrency from an exchange 📈📉 How to transfer cryptocurrency from an exchange 🚍 How to earn money from buying and selling cryptocurrencies 💵💶💷💴 Bitcoin block and its contents 🔳 Digital signature and its use 🖋️ Hashing and hash function #️⃣ Ledger Nano S and how to use it 📟 How to create an Ethereum wallet on MyEtherWallet 👛💢 How to send and receive Ethereum on MyEtherWallet 👛♻️ Official website: 🌐https://www.blockchainexpertcourse.com/ 👫👭👬 Social: 🐦 Twitter: https://twitter.com/gozargun 👔️ Linkedin: https://www.linkedin.com/in/cem-goksel-ozargun/ 👍🏻 Facebook: https://www.facebook.com/blockchainlectures Links to the most liquid and the most user-friendly cryptocurrency exchanges: 📈 Binance: https://www.binance.com/?ref=11739137 📉 Kucoin: https://www.kucoin.com/#/?r=7tMeQd Links to the most secure and the most trusted cryptocurrency wallets: 🔒 Ledger: https://www.ledger.com/products/ledger-nano-s?r=ed60 🔒 KeepKey: http://keepkey.go2cloud.org/SHCm #Blockchain #Cryptocurrency #Altcoins #Coins #Tokens #Bitcoin #Ethereum #Stellar #Exchange #Wallet #Mining #BlockchainExpert #Crypto #Course #Free #Education #BE #Udemy
Phần mềm chữ ký số
 
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https://github.com/wpq0
Views: 28 Phan dai thanh
CSE571-11-13B: Digital Signature (Part 2 of 2)
 
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Second part of Audio/Video Recording of Professor Raj Jain's class lecture on Digital Signature. It covers Digital Signatures, Digital Signature Model, Attacks, Forgeries, Digital Signature Requirements, ElGamal Digital Signatures, ElGamal Digital Signature, Schnorr Digital Signatures, Schnorr Signature, Digital Signature Standard (DSS), DSS vs. RSA Signatures, Digital Signature Algorithm (DSA), DSA Key Generation, DSA Signature Creation, DSA Signature Verification
Views: 2684 Raj Jain
Rsa Blind Signatures Solution - Applied Cryptography
 
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This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 1683 Udacity
Network Security Projects | IEEE Network Security Projects in OMNeT++
 
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Views: 501 Omnet++ Simulator
Digital Signing and Verification using CSharp
 
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This tutorial demonstrates digital signing and verification using the Bouncy Castle APIs in C#.
Views: 18517 PKIIndia
Digital Signature
 
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Digital Signature
Views: 2037 Ahmed Abouzied
Cryptography with Matrices
 
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This tutorial will show you how to encode and decode messages using matrices.
Views: 12044 Marshematics
Ask Developer Podcast - 49 - Cryptography - Part 3 - Digital Signatures and Protocols
 
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○ Digital Signatures § Goal: verify Authenticity of a message. § Based on Asymmetric Cryptography. § Basic operations 1. Public / Private keys generation (using some algorithm like RSA) 2. Signing algorithm using the private key 3. Signature verification algorithm using the corresponding public key i. Extending previous Example • Steps (Order is very important, bold stuff is the difference added to authenticate sender) ® Party 1 (Alice) 1. Generates a random AES Session Key (32 bytes / 256 bits) 2. Generates a random Initialization Vector (IV) (16 bytes / 128 bits) 3. Encrypt the message to be sent using the AES Session Key & IV 4. Calculate an HMAC of the encrypted message using the AES Session key 5. Encrypt the AES Session Key using the Public Key of Party 2 (Bob) The recipient. 6. Calculate Signature using the private signing key on the HMAC 7. Sends a packet of (Encrypted Message, Encrypted Session Key, Initialization Vector, HMAC, and Signature) to Bob ® Party 2 (Bob) 1. Decrypts Session key using his Private Key 2. Recalculates the HMAC of the encrypted message (Validates message integrity) } If HMAC check pass – Verify digital signature using Alice Public Key w If signature verification pass w Decrypts the message using the decrypted AES Session Key and Initialization Vector w Otherwise, identity of the sender couldn't not be verified, reject message. } Otherwise, rejects the message because of integrity check failure. • Why Order matters? ® Timing Side-Channel Attacks ® Padding-Oracle Attack ○ Protocols § TLS/SSL • How TLS/SSL Works? • Mitigates against ® Man in the Middle Attacks ® Authentication, so the client can be sure it is talking to the correct destination. § Public Key Infrastructure (PKI) • Certificates aka X.509 Certificate (Sha-1 Signature Issues) ® A digitally signed file ® Identifies (Computer / User / Device) ® Has Public & Private Key, only the certificate owner has the Private Key. ® Has Expiration date ® Information about the CA that issued the cert ® X.509 Extension Attributes (like Usage attribute) ® Revocation Information. • Certificate Authority (CA) (CNNIC, WoSign) ® Issues, signs and manages certificates. ® Famous certificate authorities (Verisign, GoDaddy, … etc). • Trust Chains ® CA's can delegate the signing job to subordinate CA's ◊ Root CA's signs an intermediate signing certificate to the subordinate CA ® The subordinate CA can then issue certificates ® To validate a certificate, the client validates the signatures of all the intermediate stages and make sure all of them are linked to a Trusted CA • Certificate Revocation Lists (CRL's) ® When a certificate is compromised (Private Key leaked) it will be published on the CRL, so each time the cert is validated, the CRL list is checked in case cert is revoked. 3. Takeaways 4. Books a. Understanding Cryptography: A Textbook for Students and Practitionershttps://www.amazon.com/Understanding-Cryptography-Textbook-Students-Practitioners/dp/3642041000 Our facebook Page http://facebook.com/askdeveloper On Sound Cloud http://soundcloud.com/askdeveloper Please Like & Subscribe
Views: 811 Mohamed Elsherif
Digital Signature (Smart card using DS) use application and working of digital signature in hindi
 
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Please Fill the form - https://docs.google.com/forms/d/1kOxvqvz1IvBMHJ3UeLecLDuK7ePKjHAvHaRcxduHKEE/edit ===================================================== Parallel computing lecture (Programmer) - https://www.youtube.com/channel/UCqkKeYuYOpYKGV8oCTSJRAQ/playlists ====================================================== Answer of your Questions Asked to me. (direct Link given below) Blogger Link - http://shalik-htd.blogspot.com/ c programming - https://www.youtube.com/playlist?list=PLCZJSEiJwWZ6nY1vuEAG8Ut2S4_E0X36G ====================================================== Hey, friends, I upload the videos in this channel in Hindi for Engineering student of UPTU and other universities for computer science and IT (information technology) students. like share and subscribe my channel ====================================================== Install C Programming Solution Android app - https://play.google.com/store/apps/details?id=com.shalik.patel.cprogrammingsolution ====================================================== ====================================================== My Career Planning android app - https://play.google.com/store/apps/details?id=guide.mycareer.com.rec.mycareer ====================================================== ====================================================== My Android App for my College Library (An Official App Of College Library) - https://play.google.com/store/apps/details?id=jrv.library.rec.reclibrary ====================================================== How to use android application - https://www.youtube.com/watch?v=1hMZCvl-JxM ====================================================== Contact me on Facebook - https://www.facebook.com/HTD-hub-250593705388294/?ref=br_rs ====================================================== Follow me on twitter - https://twitter.com/PatelShalik ======================================================
Bitcoin, NSA et courbe elliptique
 
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► Deviens un nouveau bloc à la chaîne de Blocs en t'abonnant ! ➮➮➮ https://goo.gl/YXzYx7 Savez-vous que Satoshi a fait un choix étrange dans l'implantation de Bitcoin ? Il semble qu'il(s) a/ont cherché à contourner une éventuelle backdoor dans une certaine courbe, qui était alors largement utilisée, et proposée par la NSA, recommandée par NIST. Crypto Analyse TV https://www.youtube.com/channel/UC1sjxfxiVWBS-dvEU8PjtkA ➮ Groupe Telegram https://t.me/joinchat/HGx-LRFjgBwotl1g6HoqnQ ➮ Suis moi sur Twitter https://twitter.com/opt_Slals ➮ Contribuer à la Chaîne de Blocs https://jonathan.blocs.xyz ➮ Medium https://medium.com/@opt_Slals ➮ Steemit https://steemit.com/@blocs ► Sources Liste des courbes elliptiques par la SEC http://www.secg.org/SEC2-Ver-1.0.pdf Rigidité des courbes http://safecurves.cr.yp.to/rigid.html Blog de Nick Szabo http://unenumerated.blogspot.fr/ Article qui m'a inspiré pour la vidéo http://ogryb.blogspot.fr/2014/11/why-i-dont-trust-nist-p-256.html Koblitz curves https://www.sciencedirect.com/science/article/pii/S1071579704000395 Excellente vidéo de Computerphile qui prouve la présence d'une backdoor dans un algorithme qui utilise ECC https://www.youtube.com/watch?v=nybVFJVXbww ECC https://www.youtube.com/watch?v=NF1pwjL9-DE&t=5s Contact : [email protected] Jonathan - Blocs
Views: 2713 Blocs
aes tutorial, cryptography Advanced Encryption Standard AES Tutorial,fips 197
 
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https://8gwifi.org/CipherFunctions.jsp Reference book: http://leanpub.com/crypto Computer Security, Cryptography Advanced Encryption Standard AES,fips 197 The Advanced Encryption Standard (AES) specifies a FIPS-approved cryptographic algorithm that can be used to protect electronic data. The AES algorithm is a symmetric block cipher that can encrypt (encipher) and decrypt (decipher) information. Encryption converts data to an unintelligible form called ciphertext; decrypting the ciphertext converts the data back into its original form, called plaintext. The AES algorithm is capable of using cryptographic keys of 128, 192, and 256 bits to encrypt and decrypt data in blocks of 128 bits. aes encryption and decryption aes encryption example aes encryption tutorial aes encryption online aes algorithm, aes encryption explained, aes algorithm tutorial, aes encryption and decryption algorithm, aes encryption algorithm, aes algorithm lecture, aes algorithm example, aes cryptography, aes encryption and decryption algorithm
Views: 153041 Zariga Tongy
Elliptical Spheres
 
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http://demonstrations.wolfram.com/EllipticalSpheres/ The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. Elliptical spheres are neither spheres nor elliptic. Elliptical spheres are complex vectors r={x, y, z} such that r. r =1 and x, y, z are elliptic functions. A possible parametrization of these vectors is given through Neville theta functions as Contributed by: Michael Trott
Views: 164 wolframmathematica
BIGIP v10 - Dashboard
 
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BIGIP v10 - Dashboard Publish Date: 'Thursday, April 23, 2009' Filename: '20090423-BIGIPv10-Dashboard'
Views: 898 F5 DevCentral
BCC ECC Chapter #1 LIVE CLASS IN HINDI लाइव  MOST IMPORTANT INTRODUCTION TO COMPUTER
 
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Views: 114 TechVideo Guru
Number Theory: Euclidean Algorithm - An example
 
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The Euclidean Algorithm is an efficient method for computing the greatest common divisor of two integers. We demonstrate the algorithm with an example. Recommended age: 12+ Teacher: Michael Harrison Artist: Katrina de Dios
Views: 65834 Socratica
Constructing a Transaction - Breaking Down Bitcoin Ep. 6
 
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We're back for Episode 6 where we discuss transactions more in-depth and construct and execute a testnet transaction. Donations BTC: 3CLdxo5qMLygXe9BrbcF6CgtE151hn49Ns **Links Below** Script from Video https://github.com/breaking-down-bitcoin/bdb-bitcointools/blob/master/testnet-trans.py Beautiful Transaction Reader! (use to follow video) http://srv1.yogh.io/#tx:id:F4DE011B137629E8ADC5CF7E8550D37D3BBC73680E194A0D0664E409885AD18C Bitcoin Testnet Transaction https://live.blockcypher.com/btc-testnet/tx/5ad96b335f8dea26ca930e649c2c00c50ff7bb2eff3fc99c9aba0ee5c6310753/ Jimmy Song's Class (where it all started! tell him we sent you!) http://programmingblockchain.com/ https://www.youtube.com/breakingdownbitcoin Recommend Channel https://www.youtube.com/channel/UCgo7FCCPuylVk4luP3JAgVw OTHERS https://en.bitcoin.it/wiki/Transaction https://en.bitcoin.it/wiki/Script http://www.secg.org/sec2-v2.pdf https://en.bitcoin.it/wiki/Secp256k1
Views: 1022 Breaking Down Bitcoin
Arithmetic with positive polynumbers | Arithmetic and Geometry Math Foundations 58 | N J Wildberger
 
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Polynumbers are extensions of the positive numbers 0,1,2,3... and have an arithmetic which is the same as that of polynomials. In fact polynumbers present us with a more logical and fundamental approach to polynomial arithmetic. This video presents some basic definitions, such as the degree of a polynumber, and then explains addition and multiplication of polynumbers. The latter is not much different from the way you multiply ordinary numbers! This lecture is part of the MathFoundations series, which tries to lay out proper foundations for mathematics, and will not shy away from discussing the serious logical difficulties entwined in modern pure mathematics. The full playlist is at http://www.youtube.com/playlist?list=PL5A714C94D40392AB&feature=view_all A screenshot PDF which includes MathFoundations46 to 79 can be found at my WildEgg website here: http://www.wildegg.com/store/p101/product-Math-Foundations-screenshot-pdf
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NDSS 2018 Consensual and Privacy-Preserving Sharing of Multi-Subject and Interdependent Data
 
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NDSS 2018 Session 6B: Privacy and De-Anonymization 01 Consensual and Privacy-Preserving Sharing of Multi-Subject and Interdependent Data SUMMARY Individuals share increasing amounts of personal data online. This data often involves–or at least has privacy implications for–data subjects other than the individual who shares it (e.g., photos, genomic data) and the data is shared without their consent. A popular example, with dramatic consequences, is revenge pornography. In this paper, we propose ConsenShare, a system for sharing, in a consensual (wrt the data subjects) and privacy-preserving (wrt both service providers and other individuals) way, data involving subjects other than the uploader. We describe a complete design and implementation of ConsenShare for photos, which relies on image processing and cryptographic techniques, as well as on a two-tier architecture (one entity for detecting the data subjects and contacting them; one entity for hosting the data and for collecting consent). We benchmark the performance (CPU and bandwidth) of ConsenShare by using a dataset of 20k photos from Flickr. We also conduct a survey targeted at Facebook users (N = 321). Our results are quite encouraging: The experimental results demonstrate the feasibility of our approach (i.e., acceptable overheads) and the survey results demonstrate potential interest from the users. SLIDES http://wp.internetsociety.org/ndss/wp-content/uploads/sites/25/2018/03/NDSS2018_06B-1_Olteanu_Slides.pdf PAPER http://wp.internetsociety.org/ndss/wp-content/uploads/sites/25/2018/02/ndss2018_06B-1_Olteanu_paper.pdf SLIDES http://wp.internetsociety.org/ndss/wp-content/uploads/sites/25/2018/03/NDSS2018_06B-1_Olteanu_Slides.pdf AUTHORS Alexandra-Mihaela Olteanu (EPFL and UNIL-HEC Lausanne) Kevin Huguenin (UNIL-HEC Lausanne) Italo Dacosta (EPFL) Jean-Pierre Hubaux (EPFL) Network and Distributed System Security (NDSS) Symposium 2018, 18-21 February 2018, Catamaran Resort Hotel & Spa in San Diego, California. https://www.ndss-symposium.org/ndss2018/programme/ ABOUT NDSS The Network and Distributed System Security Symposium (NDSS) fosters information exchange among researchers and practitioners of network and distributed system security. The target audience includes those interested in practical aspects of network and distributed system security, with a focus on actual system design and implementation. A major goal is to encourage and enable the Internet community to apply, deploy, and advance the state of available security technologies. https://www.ndss-symposium.org/ #NDSS #NDSS18 #NDSS2018 #InternetSecurity
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