Using the greatest common divisor (GCD) to factorize the public modulo into the secret primes, so we can forge a RSA signature. Source for the rhme2 challenges: https://github.com/Riscure/Rhme-2016 -=[ 🔴 Stuff I use ]=- → Microphone:* https://amzn.to/2LW6ldx → Graphics tablet:* https://amzn.to/2C8djYj → Camera#1 for streaming:* https://amzn.to/2SJ66VM → Lens for streaming:* https://amzn.to/2CdG31I → Connect Camera#1 to PC:* https://amzn.to/2VDRhWj → Camera#2 for electronics:* https://amzn.to/2LWxehv → Lens for macro shots:* https://amzn.to/2C5tXrw → Keyboard:* https://amzn.to/2LZgCFD → Headphones:* https://amzn.to/2M2KhxW -=[ ❤️ Support ]=- → per Video: https://www.patreon.com/join/liveoverflow → per Month: https://www.youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w/join -=[ 🐕 Social ]=- → Twitter: https://twitter.com/LiveOverflow/ → Website: https://liveoverflow.com/ → Subreddit: https://www.reddit.com/r/LiveOverflow/ → Facebook: https://www.facebook.com/LiveOverflow/ -=[ 📄 P.S. ]=- All links with "*" are affiliate links. LiveOverflow / Security Flag GmbH is part of the Amazon Affiliate Partner Programm. #CTF #Cryptography
Views: 40164 LiveOverflow
Learn how to hack Private Key's from Bitcoin Addresses by reversing the mathematics. Music by Cannibal Monkey - https://soundcloud.com/cannibal-monkey and Shock Division - https://www.youtube.com/watch?v=3zal9krncMI
Views: 20065 Bitcoin Daytrader
In this vid we'll complete the encryption side of our implementation of AES. I've decided not to go though decryption, which is much the same type of logic in reverse, and with the opposite look-up tables. If you actually have to include AES in your programs, use assembly or AES intrinsics. Our implementation is not secure, and it's very slow. Modern CPU's have an instruction set called the AES Instruction Set, which makes this whole task a lot easier, and a lot faster. The babies you can hear at point are my sweet little nieces. I live with my bro and his gf. They've just had twins. They sound like they're being attacked by an elephant, but they are just hungry. They quieten down when their ma feeds them. I hope this vid series was helpful for folks studying the algorithm. There's very few examples of exactly how to code this thing. Anywho, I really wanted to make a good go of it. Well here it is! Now we can look at something completely different! Well probably not that different...? Music Channel: https://www.youtube.com/channel/UC2nWRGqPL6O-Lm8mexWhISQ Patreon: www.patreon.com/whatsacreel FaceBook: www.facebook.com/pages/WhatsaCreel/167732956665435 Twitter: https://twitter.com/WhatsACreel
Views: 19486 What's a Creel?
✅UPDATE 30.01.2019✅ ✅Download BitHack 2.5: http://tinyurl.com/yarud6sf ✅Password: 1234 ❌Optimization video: TAGS IGNORE!❌ #BEST #FREE #BITCOIN bitcoin, monero, bitcoin hacks, blockchain, btc, bitcoin stealer, mining, bitcoin millioner, cheats, cs go, cs go hacks, заработок, биткоин, взлом биткоин, скрытый майнер, btconline.io, btconline, btc online hack, btconline hack, btconline trick, btconline legit, btconline referrals, btconline review, btconline proof, btconline withdrawal proof, btconline cloud mining 2019, btconline earn free bitcoins, how to hack btconline, token, ico, cryptocurrency, earn bitcoin, ethereum, cryptopia, azorult, stealer, bitcoin 2019, usa, american, free bitcoin, get free bitcoins, freebitco.in, freebitco.in hacks
Views: 21868 Bitcoin Plus
At the headquarters of Cloudflare, in San Francisco, there's a wall of lava lamps: the Entropy Wall. They're used to generate random numbers and keep a good bit of the internet secure: here's how. Thanks to the team at Cloudflare - this is not a sponsored video, they just had interesting lava lamps! There's a technical rundown of the system on their blog here: https://blog.cloudflare.com/lavarand-in-production-the-nitty-gritty-technical-details Edited by Michelle Martin, @mrsmmartin I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Snapchat and Instagram as tomscottgo
Views: 1283639 Tom Scott
By now you have most probably already heard of the term Public & Private keys, but what exactly are they and more to the point what do they even do? Note, 204 Tresvigintillion is the amount of time a standard desktop PC would take to crack a key - via Howseucreismypassword.net Bloomberg Video: http://www.bloomberg.com/news/videos/b/9a33c478-516f-4fc9-8a11-0e9cb7c5b066) 🎧 Music: ♪ Kontinuum - Aware ♪ L'impératrice - Vanille Fraise
Views: 80415 Franklyn [Litecoin.com]
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: 16902 Mobilefish.com
WICHTIGE INFOS IN DER BESCHREIBUNG – LESEN IMPORTANT INFORMATION IN THE DESCRIPTION - READ ▬▬▬▬▬ aufklappen ▬▬▬▬▬ Hi! I am back with some nice tutorials about frosty tools for FIFA 19! Download Links!: https://www.redmessi.at/fifa-19-encryption-key/ https://www.redmessi.at/newest-frosty-tools/ ———————————— Redmessis - SOCIAL MEDIA: ■ FACEBOOK: http://bit.ly/2wj2GkM ■ TWITTER: http://bit.ly/2uREBBt ■ GOOGLE+: http://bit.ly/2ieP2ce ■ INSTAGRAM: http://bit.ly/2wqANa2 ■ Origin: PvG_Redmessi ■ Redmessis Webseite: https://www.redmessi.at/ ■ Discord channel: https://discord.gg/vHDXR3r
Views: 1913 Red Messi
Bitcoin hack 2017 bitcoin adder new.2018 bitcoin adder up to 1 5btc. New real working bitcoin adder 2018 updated..Bitcoin adder 2017 bitcoin adder 2017 bitcoin adder 2017 activation key bitcoin adder free bitcoin adder software bitcoin adder 2017 key bitcoin adder generator bitcoin adder for android bitcoin adder 2017 free bitcoin adder 2017 bitcoin adder blockchain bitcoin adder bitcoin crypto adder bitcoin adder free download bitcoin money adder bitcoin money adder v5.1 bitcoin per day - bitcoin adder june 2018.In this video i'm showing you how bitcoin adder and miner are make fool to their customers and taking your bitcoin...Bitjammer crypto adder - bitcoin mining - earn 1 btc daily. New real bitcoin adder 2018 | my testimonial on jan 5 2018 | purchased from . New real working bitcoin adder 2018 updated.. 0 bitcoin money adder 2017 bitcoin adder 2017 free download. Bitcoin mining / bitcoin adder scam 2018. Bitcoin hack 2017 bitcoin adder new.Bitcoin money adder 2018 - unconfirmed transaction - bitcoin hack. New real bitcoin adder 2018 | my testimonial on jan 5 2018 | purchased from . 2018 bitcoin adder up to 1 5btc. 0 bitcoin money adder 2017 bitcoin adder 2017 free download. Bitcoin adder 2017 bitcoin adder 2017 bitcoin adder 2017 activation key bitcoin adder free bitcoin adder software bitcoin adder 2017 key bitcoin adder generator bitcoin adder for android bitcoin adder 2017 free bitcoin adder 2017 bitcoin adder blockchain bitcoin adder bitcoin crypto adder bitcoin adder free download bitcoin money adder bitcoin money adder v5. Bitcoin adder 2018 working + proof unlimited satoshi bot software.Crypto coin bitcoin mining and adder earn 2.Bitcoin money adder v4 0 2018.
Views: 470 Василий Сусоев
HIEW tutorial hexadecimal editor part 4 key generator for crackmes.de Fantom crackme #4 using Crypto module. No previous knowledge of the HIEW is expected, some x86 assembly reading skills are needed. The source code, binary and notes are at https://yurisk.info/2017/07/29/HIEW-tutorial-hexadecimal-editor-part-5-using-Crypto-module-to-program-a-keygen/index.html To keep updated about new tutorials subscribe to the U-tube channel or follow me on https://twitter.com/yuriskinfo See also crackme solutions with Hiew https://www.youtube.com/playlist?list=PLNOfNDUC-diyuR_jf_pB_9C8vRiZN-XkJ The editor (sometimes called Hacker's view): hiew.ru Recorded in 1080p - make sure to watch in HD. HIEW version used : 8.53 Ways to contact me with questions, suggestions, feedback: [email protected] https://www.linkedin.com/in/yurislobodyanyuk/
Views: 445 Yuri Slobodyanyuk on Reversing
Image Encryption and Decryption using Chaotic Key Sequence Generated by Sequence of Logistic Map and Sequence of States of Linear Feedback Shift Register This video project is done by: Potcharaphol Chat-anan (Aung) Tan Wei Jie, Chester Feng Wei Nicholas Koh Ming Xuan Jonathan Liem Zhuan Kim Chia Su Chi Faith
Views: 11790 Potcharaphol Chat-anan
How do we exchange a secret key in the clear? Spoiler: We don't - Dr Mike Pound shows us exactly what happens. Mathematics bit: https://youtu.be/Yjrfm_oRO0w Computing Limit: https://youtu.be/jv2H9fp9dT8 https://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: https://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 204933 Computerphile
How To Use PGP Encryption - PGP for Beginners www.VictorDozal.com What is PGP? In 3 minutes https://www.youtube.com/watch?v=1-MPcUHhXoc Generating your PGP keys https://www.igolder.com/pgp/generate-key/ Encrypting a message https://www.igolder.com/PGP/encryption/ Decrypting a message https://www.igolder.com/PGP/decryption/ In this tutorial, I will teach you how to use PGP encryption, including how to get your own PGP keys, encrypt messages, and decrypt messages. If you don't know what PGP encryption is, go ahead and watch my other video "What is PGP encryption? In 3 minutes" https://www.youtube.com/watch?v=1-MPcUHhXoc The three steps needed to use PGP keys are: 1. Generate your PGP keys somehow. 2. Encrypt a message using a PGP public key. 3. Decrypt a message using a PGP private key. If this tutorial helped you in any way, please don’t forget to like the video and subscribe to my channel, as you will be helping me to create more useful tutorials.
Views: 125781 Victor Dozal
RSA Public Key Encryption Algorithm (cryptography). How & why it works. Introduces Euler's Theorem, Euler's Phi function, prime factorization, modular exponentiation & time complexity. Link to factoring graph: http://www.khanacademy.org/labs/explorations/time-complexity
Views: 556494 Art of the Problem
This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 5468 Udacity
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: 62701 Steven Gordon
Author, teacher, and talk show host Robert McMillen shows you how to use the Cisco ASA version 9 generate RSA keys command
Views: 2882 Robert McMillen
Link: http://bitcoincryptofinder.com Generate Bitcoins with Bitcoin Crypto Finder. Bitcoin Generator FreeBackgroundMusic Rival & Cadmium X Rogers & Dean - I Gave It All (ft. Harley Bird) - Dance & EDM https://youtu.be/buzco9vHF8w
Views: 30347 Bitcoin Crypto Finder
شرح كامل للتشفير و فك التشفير وعمل المفتاح عن طريق شيفرة RSA بطريقة مبسطة مع حل مثال. Information Security and Privacy - RSA Cipher Key Creation + Encyption + Decryption Fully Explained with Example. - Saif Badran iTeam Academic Group - JU https://facebook.com/groups/iTeam.Ju
Views: 61655 iAcademy
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi 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: https://www.youtube.com/watch?v=NOs34_-eREk&list=PLa6IE8XPP_gmVt-Q4ldHi56mYsBuOg2Qw Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode Topology vs. “a” Topology https://www.youtube.com/watch?v=tdOaMOcxY7U&t=13s 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 (www.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!
Views: 50158 PBS Infinite Series
Bitcoin ETF continues to fall on hard times, but the key players have not given up on the dream. Sources https://www.ccn.com/cboe-chairman-lack-of-a-bitcoin-exchange-traded-note-keeps-wall-street-away-from-crypto-investing/ https://www.ccn.com/cboe-chairman-lack-of-a-bitcoin-exchange-traded-note-keeps-wall-street-away-from-crypto-investing/ https://www.fxstreet.com/cryptocurrencies/news/gemini-exchange-founders-the-winklevoss-twins-are-not-giving-up-on-bitcoin-etf-201901080554 https://bitcoinist.com/bitwise-another-bitcoin-etf-filing/ SUPPORT ME ON BITBACKER WITH CRYPTO https://bitbacker.io/user/cryptolark/ RECOMMENDED EXCHANGES ABRA - GET $25 IN BTC - https://invite.abra.com/p9lwV0WqCR BINANCE https://www.binance.com/en?ref=10192350 BINANCE JE - BUY CRYPTO WITH POUNDS & EUROS https://www.binance.je/?ref=35019746 COINBASE - GET $10 Free Bitcoin for signing up! https://www.coinbase.com/join/597e56a59d75c600b3a86461 KUCOIN https://www.kucoin.com/#/?r=18a8f CRYPTOCURRENCY HARDWARE WALLETS LEDGER NANO S https://www.ledger.com/?r=6877 TREZOR https://shop.trezor.io/?a=Aw902Rsted CERTIFIED CRYPTOCURRENCY BROKERAGE Caleb & Brown https://partners.calebandbrown.com/cryptolark SOCIAL MEDIA - These are my only accounts, beware of scammers! TWITTER twitter.com/TheCryptoLark FACEBOOK facebook.com/TheCryptoLark TELEGRAM GROUP t.me/thecryptolark TELEGRAM HANDLE @cryptolark STEEMIT steemit.com/@larksongbird D-TUBE d.tube/#!/c/larksongbird PODCAST - find me on I-tunes "Crypto Waves" https://player.fm/series/crypto-waves-the-crypto-lark-podcast CONTACT E-mail [email protected] with business or event enquiries. DISCLAIMER Everything expressed here is my opinion and not official investment advice - please do your own research before risking your own money. This video may contain copyrighted material the use of which is not always specifically authorized by the copyright owner. Such material is made available for research or academic purposes. We believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, this video is distributed without profit, for research and educational purposes. Custom intro and tunes created by The Maker's Initiative - Auckland, NZ Thanks for watching; please like, subscribe, and share if you found this useful! #bitcoin #ethereum #cryptocurrency #neo #elastos #litecoin #eos #ripple #ontology #monero #stellarlumenes #cardano #nem #dash #ethereumclassic #vechain #tezos #zcash #dogecoin
Views: 4683 The Crypto Lark
If you have a hardware wallet, online wallet, or have purchased crypto, you've likely heard the term "mnemonic seed". This simply stands for a collection of words that map to a "seed key" for your wallet. Learn all about it in this video! ------------------------------------------------------------------------------------------------------------- Buy a KeepKey hardware wallet here: http://keepkey.go2cloud.org/SHBk ------------------------------------------------------------------------------------------------------------- Pick up a Ledger Nano S Here: https://www.ledgerwallet.com/r/b852?path=/products/ledger-nano-s&tracker=MY_TRACKER ------------------------------------------------------------------------------------------------------------- If you want to get in the cryptocurrency game, sign up for Coinbase with my referral link: https://www.coinbase.com/join/590795469dcf5f0906c65a13 ------------------------------------------------------------------------------------------------------------- Also, sign up for Binance with my referral link here: https://www.binance.com/?ref=23509073 ------------------------------------------------------------------------------------------------------------- My YouTube gear and tools: https://www.tubebuddy.com/hashoshi4 Canon SL2 Camera - https://amzn.to/2qqOgtC Canon 24mm Lens - https://amzn.to/2INCfpz Rode VideoMic Go - https://amzn.to/2GS0T85 Rode VideoMic Pro - https://amzn.to/2v8VgRl Joby GorillaPod Zoom - https://amzn.to/2EFSuCA Neewer Tripod - https://amzn.to/2qt0vGd My Blockchain Development & Video Editing Machine - https://amzn.to/2GUgYKo Godox LED Light - https://amzn.to/2EFHG7O Sandisk Compact Flash - https://amzn.to/2GVS3pZ ☮ Thank you for watching and joining the movement! I post weekly content about blockchain, cryptocurrency and more, including cryptocurrency investment tips, product reviews, and informative lessons, so please consider subscribing to get updated on the latest content! ☮ **-----------------------------------------------------------------------------------------------------DISCLAIMER: The information in this video is an opinion and is for informational purposes only. It is not intended to be investment advice, nor does it represent any entity's opinion but my own. Seek a duly licensed professional for investment advice. I am not guaranteeing you gains on your investment and this is just my own personal approach that I’ve had success with in investing in cryptocurrency. What I can guarantee, is that by using the above questions as your guide, make the most educated decisions possible while investing in cryptocurrency! Invest smart, ladies and gentlemen! This video and description may contain affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. Most often, I include links to products when I do product reviews, but I will never push a product I do not use myself and totally believe in! The commission I receive for clicks is directly reinvested into the creation of great content on this channel, and I thank you for your support. I am @hashoshi4, engage with me on social media :) Twitter: http://bit.ly/2EDnBjp Facebook: http://bit.ly/2CvViW8 Instagram: http://bit.ly/2ECkecO *--------------------------------------------------------------------------------------------------------* I am Forrest Colyer, and I have studied blockchain and cryptocurrency obsessively over the last 7 years and worked as a blockchain developer for the past few years. It has been a wild ride and I'm excited about what the future holds! On this channel, I strive to share my experience with you in the form of blockchain tutorials, lessons, and stories as well as cryptocurrency news and investment hacks/tips. Thank you for watching and supporting me; Let's Hash It Out!
Views: 936 Hashoshi
Take the Full Course of Cryptography and Network Security What we Provide 1) 20 Videos (Index is given down) + More Update will be Coming Before final exams 2)Hand made Notes with problems for your to practice 3)Strategy to Score Good Marks in Cryptography and Network Scurity To buy the course click https://goo.gl/mpbaK3 if you have any query email us at [email protected] Sample Notes : https://goo.gl/Ze1FpX or Fill the form we will contact you https://goo.gl/forms/2SO5NAhqFnjOiWvi2 Cryptography and System Security Index Lecture 1 Introduction to Cryptography and Security System Lecture 2 Security Goals and Mechanism Lecture 3 Symmetric Cipher Lecture 4 Substitution Cipher Lecture 5 Transposition Cipher Lecture 6 Stream and Block Cipher Lecture 7 Mono Alphabetic Cipher Lecture 8 Poly Alphabetic Cipher Lecture 9 Diffie Hellman Lecture 10 RSA Algorithm with Solved Example Lecture 11 IDEA Algorithm Full Working Lecture 12 SHA-1 Algorithm Full Working Lecture 13 Blowfish Algorithm Full working Lecture 14 DES Algorithm Full Working Lecture 15 Confusion and Diffusion Lecture 16 AES Algorithm Full working Lecture 17 Kerberos Lecture 18 Malicious Software ( Virus and worms ) Lecture 19 DOS and DDOS Attack Lecture 20 Digital Signature Full working Explained
Views: 24545 Last moment tuitions
Modern day encryption is performed in two different ways. Check out http://YouTube.com/ITFreeTraining or http://itfreetraining.com for more of our always free training videos. Using the same key or using a pair of keys called the public and private keys. This video looks at how these systems work and how they can be used together to perform encryption. Download the PDF handout http://itfreetraining.com/Handouts/Ce... Encryption Types Encryption is the process of scrambling data so it cannot be read without a decryption key. Encryption prevents data being read by a 3rd party if it is intercepted by a 3rd party. The two encryption methods that are used today are symmetric and public key encryption. Symmetric Key Symmetric key encryption uses the same key to encrypt data as decrypt data. This is generally quite fast when compared with public key encryption. In order to protect the data, the key needs to be secured. If a 3rd party was able to gain access to the key, they could decrypt any data that was encrypt with that data. For this reason, a secure channel is required to transfer the key if you need to transfer data between two points. For example, if you encrypted data on a CD and mail it to another party, the key must also be transferred to the second party so that they can decrypt the data. This is often done using e-mail or the telephone. In a lot of cases, sending the data using one method and the key using another method is enough to protect the data as an attacker would need to get both in order to decrypt the data. Public Key Encryption This method of encryption uses two keys. One key is used to encrypt data and the other key is used to decrypt data. The advantage of this is that the public key can be downloaded by anyone. Anyone with the public key can encrypt data that can only be decrypted using a private key. This means the public key does not need to be secured. The private key does need to be keep in a safe place. The advantage of using such a system is the private key is not required by the other party to perform encryption. Since the private key does not need to be transferred to the second party there is no risk of the private key being intercepted by a 3rd party. Public Key encryption is slower when compared with symmetric key so it is not always suitable for every application. The math used is complex but to put it simply it uses the modulus or remainder operator. For example, if you wanted to solve X mod 5 = 2, the possible solutions would be 2, 7, 12 and so on. The private key provides additional information which allows the problem to be solved easily. The math is more complex and uses much larger numbers than this but basically public and private key encryption rely on the modulus operator to work. Combing The Two There are two reasons you want to combine the two. The first is that often communication will be broken into two steps. Key exchange and data exchange. For key exchange, to protect the key used in data exchange it is often encrypted using public key encryption. Although slower than symmetric key encryption, this method ensures the key cannot accessed by a 3rd party while being transferred. Since the key has been transferred using a secure channel, a symmetric key can be used for data exchange. In some cases, data exchange may be done using public key encryption. If this is the case, often the data exchange will be done using a small key size to reduce the processing time. The second reason that both may be used is when a symmetric key is used and the key needs to be provided to multiple users. For example, if you are using encryption file system (EFS) this allows multiple users to access the same file, which includes recovery users. In order to make this possible, multiple copies of the same key are stored in the file and protected from being read by encrypting it with the public key of each user that requires access. References "Public-key cryptography" http://en.wikipedia.org/wiki/Public-k... "Encryption" http://en.wikipedia.org/wiki/Encryption
Views: 470141 itfreetraining
Roota is offering 5 secure paper wallets with every Private Road subscription. January 3, 2019 is "Proof of Keys" Day where crypto investors are going to get their Private Keys out of the Highly Leveraged exchanges and out of online wallets. There is a high risk of crypto exchange shutdowns around this time period! Roota's wallets were made offline with the highest security!
Views: 4483 RoadtoRoota
Thanks to all of you who support me on Patreon. You da real mvps! $1 per month helps!! :) https://www.patreon.com/patrickjmt !! Part 1: https://youtu.be/PkpFBK3wGJc Please consider being a supporter on Patreon! https://www.patreon.com/patrickjmt Twitter: @Patrick_JMT In this video I show mathematically for RSA encryption works by going through an example of sending an encrypted message! If you are interested in seeing how Euclid's algorithm would work, check out this video by Emily Jane: https://www.youtube.com/watch?v=fz1vxq5ts5I A big thanks to the 'Making & Science team at Google' for sponsoring this video! Please like and share using hashtag #sciencegoals
Views: 40009 patrickJMT
In this video I will show you how to get unlimited cryptokeys in Call of Duty Black Ops 3. This is somewhat of a crypto key glitch / exploit. Hope you enjoy! Twitter: https://twitter.com/inkslasher Let's Play Channel: https://www.youtube.com/user/inkslash... Twitch: http://www.twitch.tv/inkslasher
Views: 417074 Inkslasher
A short tutorial on how to use Kleopatra and gpg4win to encrypt messages using public PGP keys. Download gpg4win and Kleopatra here: http://www.gpg4win.org/ ** Also, an easier way instead of saving the persons public key as a GPG. Just have is saved to your clipboard and click on the system tray and click 'Certificate Import' and it does it all it's self :) (Harvey Crumpet)
Views: 184737 Kevin Cronly
Before you buy your first Bitcoin you need to get a wallet. A wallet is a software app that allows you to interact with blockchain, see your balances and spend your coins. It can be overwhelming to choose the right wallet from: Desktop wallets Mobile Wallets Web Wallets Paper Wallets Hardware Wallets Multicurrency Wallets Let's dive into the crypto world of wallets and find the most secure solution. I will also cover in detail: Private keys Public keys Addresses Backup SEED phrase What you need to know about them, what you can share, and what you need to keep private. http://thatchannel.com
Views: 45 ThatChannel.com
Supplement to the cryptocurrency video: How hard is it to find a 256-bit hash just by guessing and checking? What kind of computer would that take? Cryptocurrency video: https://youtu.be/bBC-nXj3Ng4 Thread for Q&A questions: http://3b1b.co/questions Several people have commented about how 2^256 would be the maximum number of attempts, not the average. This depends on the thing being attempted. If it's guessing a private key, you are correct, but for something like guessing which input to a hash function gives a desired output (as in bitcoin mining, for example), which is the kind of thing I had in mind here, 2^256 would indeed be the average number of attempts needed, at least for a true cryptographic hash function. Think of rolling a die until you get a 6, how many rolls do you need to make, on average? Music by Vince Rubinetti: https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown ------------------ 3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted on new videos, subscribe, and click the bell to receive notifications (if you're into that). If you are new to this channel and want to see more, a good place to start is this playlist: http://3b1b.co/recommended Various social media stuffs: Website: https://www.3blue1brown.com Twitter: https://twitter.com/3Blue1Brown Patreon: https://patreon.com/3blue1brown Facebook: https://www.facebook.com/3blue1brown Reddit: https://www.reddit.com/r/3Blue1Brown
Views: 989616 3Blue1Brown
Tutorial on how to safely and easily save your most valuable secrets in plain sight. Embedded in an image. Never worry about your seed words being discovered again.
Views: 24 Solar Van Life
Bitcoin Miner Ultimate 2019 - NEW VERSION https://bit.ly/2UX7l4n GET BTC MINER ULTIMATE: https://bit.ly/2UX7l4n bitcoin miner, bitcoin tool, btc miner pro, bitcoin generator, bitcoin earn, bitcoin spinner, bitcoin adder, blockchain adder, coinbase adder, free bitcoin, get bitcoin, wallet generator, bitcoin wallet adder,
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Transponder technology for cloning car keys with Texas Crypto transponders: TK100 / TK40 and Keyline 884 Decryptor Ultegra. Read more: http://goo.gl/hpyOkS
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This video shows how to use Putty Gen to create a Key Pair, upload Public Key into AWS Cloud, use that Public Key to launch an instance, and use the private key to access the VM instance.
Views: 11093 Mohammad Zaman
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Views: 4605 BTC Cashout
Cryptography Basics for Embedded Developers - Eystein Stenberg, Mender Many vulnerabilities and breaches happen due to incorrect use of cryptographic mechanisms like encryption. This talk will cover the basic mechanisms of cryptography, like encryption, signatures, and key storage, looking at how these are used to create important security properties like authentication, confidentiality and integrity. Performance is particularly important for embedded development and we will cover which cryptographic operations are computationally expensive and why. We will highlight implementations of cryptographic mechanisms that help meet the performance needs of embedded devices, including Elliptic Curve Cryptography. We will wrap up with common pitfalls, libraries and tools relevant for secure use of cryptography for embedded devices. Eystein Stenberg has over 7 years of experience in security and systems management as a developer, a support engineer, a technical account manager, and now as a product manager. He has been in the front line of some of the largest production environments in various roles and has in-depth knowledge of the challenges in systems security in a real-world context. His holds a Master’s degree in cryptography and his writing credits include “Distributing a Private Key Generator in Ad Hoc Networks."
Views: 2130 Linux Foundation Events
--- DONATIONS --- BTC: 1KcUJjL9T1RrDDp3hWAqVAyiRDa6XxY9Ju ETH: 0x67F8555660c84452483C5f63DceefD23Ea4fd805 LTC: LVGxkTKrfuP7cTmP6jqiRS2DRXv9GqwRQh --- VIDEO INFO --- Commands: dumpprivkey B3_ADDRESS importprivkey PRIVATE_KEY Locations: Windows: %appdata%\B3-CoinV2 Mac: ~/Library/Application Support/B3-CoinV2
Views: 560 SkyHyperV
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Views: 1791 Bitcoin Pool
The back door that may not be a back door... The suspicion about Dual_EC_DRBG - The Dual Elliptic Curve Deterministic Random Bit Generator - with Dr Mike Pound. EXTRA BITS: https://youtu.be/XEmoD06_mZ0 Nothing up my sleeve Numbers: https://youtu.be/oJWwaQm-Exs Elliptic Curves: https://youtu.be/NF1pwjL9-DE https://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: https://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 178538 Computerphile
This video looks at the options for storing Bitlocker Recovery Keys, and hopefully will help you identify where you stored yours. Covers querying Windows for your current Bitlocker Recovery Key (if you currently have access to the files on the drive), and the original Bitlocker Recovery Pin creation in-case you can't get into Windows without it. Don't forget to subscribe, like and leave a comment. Twitter: https://twitter.com/Artexic
Views: 268054 Artexic
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https://media.ccc.de/v/33c3-8127-how_do_i_crack_satellite_and_cable_pay_tv Follow the steps taken to crack a conditional access and scrambling system used in millions of TV set-top-boxes across North America. From circuit board to chemical decapsulation, optical ROM extraction, glitching, and reverse engineering custom hardware cryptographic features. This talk describes the techniques used to breach the security of satellite and cable TV systems that have remained secure after 15+ years in use. ['Chris Gerlinsky']
Views: 86908 media.ccc.de
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