Search results “Importance of digital signature in cryptography games”
Digital Signatures
This video is part of the Udacity course "Intro to Information Security". Watch the full course at https://www.udacity.com/course/ud459
Views: 40283 Udacity
Public Key Cryptography - Computerphile
Spies used to meet in the park to exchange code words, now things have moved on - Robert Miles explains the principle of Public/Private Key Cryptography note1: Yes, it should have been 'Obi Wan' not 'Obi One' :) note2: The string of 'garbage' text in the two examples should have been different to illustrate more clearly that there are two different systems in use. http://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: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels
Views: 394432 Computerphile
Digital Signature Kya Hai || Importance Of Digital Signature || Keep Yourself Safe
Facebook Page - https://www.facebook.com/DigitalCharcha Hello Friends, Is Video mai mai aap ko bataunga Digital Signature ke baare mai. Kyu Digital Signature important hai, kaise digital siganture kaam karta hai, digital signature ke faayde kya hai and digital signature ke examples. Dosto hume umeed hai ki aap ko ye video pasand aayega and agar aap ko hamare digital signature ka video pasand aata hai to hamare channel ko subscriber zaruur kare. ►Hamare saare video, yahan dekhiye - http://bit.ly/2ewQgcl ►'Digital Charcha' ke YouTube channel ko subscribe karne ke liye yahan click kijiye - http://bit.ly/DigiC ► हमारे सारे वीडियो, यहाँ देखिये - http://bit.ly/2ewQgcl ► ' डिजिटल चर्चा' के यूट्यूब चैनल को सब्सक्राइब करने के लिए यहाँ क्लिक करें - http://bit.ly/DigiC अगर आप को यह विडियो पसंद आया तो कृपया लाइक करें और अगर आप कुछ कहना या पूछना चाहते है तो कृपया नीचे दिए गए कमेंट बॉक्स में लिखें धन्यवाद ! Subscribe Us For Daily Computer, Internet And Technology Learning Video Tutorials In Hindi. अगर आप Computer, Internet & Technology के बारे में सीखना और जानना चाहते है तो हमारे "Digital Charcha" YouTube चैनल को Subscribe कर ले | Channel - https://www.youtube.com/channel/UCKD1sEKr2badStIhn-A-t0w
Views: 23887 Digital Charcha
This book is a clear and informative introduction to cryptography and data protection - subjects of considerable social and political importance. It explains what algorithms do, how they are used, the risks associated with using them, and why governments should be concerned. Important areas are highlighted, such as Stream Ciphers, block ciphers, public key algorithms, digital signatures, and applications such as e-commerce. This book highlights the explosive impact of cryptography on modern society, with, for example, the evolution of the internet and the introduction of more sophisticated banking methods.
Views: 2 Dren Nemo Hoti
Hashing Algorithms and Security - Computerphile
Audible free book: http://www.audible.com/computerphile Hashing Algorithms are used to ensure file authenticity, but how secure are they and why do they keep changing? Tom Scott hashes it out. More from Tom Scott: http://www.youtube.com/user/enyay and https://twitter.com/tomscott http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Pigeon Sound Effects courtesy of http://www.freesfx.co.uk/ Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels
Views: 692574 Computerphile
Bitcoin Q&A: Schnorr signatures and the privacy roadmap
How important are privacy improvements to Bitcoin in the roadmap? How will second layers and atomic swaps help with this? When will Schnorr signatures / signature aggregation be added to Bitcoin? What are Taproot and Graftroot? Will it be done through a soft or hard fork? Should we keep transaction transparency instead of adding privacy features? Watch Pieter Wuille's presentation - https://youtu.be/YSUVRj8iznU Schnorr signature BIP - https://github.com/sipa/bips/blob/bip-schnorr/bip-schnorr.mediawiki CORRECTION / CLARIFICATION: At 3:47, I mention that Schnorr signatures had to overcome "patent encumbrances" and guessed that the patent expired somewhere around 2010. The precise expiration date of the U.S. Patent (No. 4,995,082) was February 2008. At 4:22, I say that ECDSA and EC-Schnorr are based on the difficulty of solving the discrete logarithm problem over a prime-order field. While this is true for the digital signature algorithm (DSA), ECDSA and Schnorr are based on the discrete log problem over an elliptic curve group. (h/t 'Daira Hopwood') These questions were part of the monthly live Patreon Q&A session in July and the Denver event as part of 'The Internet of Money Tour' at the Hilton Denver Inverness, which took place on July 28th and August 6th 2018 respectively. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop RELATED: Worse than Useless: Financial Surveillance - https://youtu.be/n4F-h4xuXMk Money as a System-of-Control - https://youtu.be/FyK4P7ZdOK8 The Stories We Tell About Money - https://youtu.be/ONvg9SbauMg Bitcoin: Privacy, Identity, Surveillance and Money - https://youtu.be/Vcvl5piGlYg ADISummit: Self-Sovereign Identity Panel - https://youtu.be/DZbyiJqKT8c How is fungibility tied to privacy? - https://youtu.be/VuI-8EwqIS8 Public keys versus addresses - https://youtu.be/8es3qQWkEiU Re-using addresses - https://youtu.be/4A3urPFkx8g Coin selection and privacy - https://youtu.be/3Ck683CQGAQ Airdrop coins and privacy implications - https://youtu.be/JHRnqJJ0rhc Wallet design and mass adoption - https://youtu.be/WbZX6BDZJHc How do I choose a wallet? - https://youtu.be/tN6b62sEpsY Using paper wallets - https://youtu.be/cKehFazo8Pw Exchanges, identity, and surveillance - https://youtu.be/TVFy8xXfxAA The price of losing privacy - https://youtu.be/2G8IgiLbT_4 Layered scaling and privacy - https://youtu.be/4w-bjUhpf_Q Lightning and onion routing - https://youtu.be/D-nKuInDq6g What is the roadmap? - https://youtu.be/5Eoj_sKyC90 SegWit and fork research - https://youtu.be/OorLoi01KEE MimbleWimble and Schnorr signatures - https://youtu.be/qloq75ekxv0 Block capacity and embedded data - https://youtu.be/JXt0v54nojI Mixing services - https://youtu.be/rKoMvOH4zoY Borderless money - https://youtu.be/EZh1-ZqffOw Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 [NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/ Subscribe to the channel to learn more about Bitcoin & open blockchains! Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 9125 aantonop
Symmetric Key Cryptography VS Asymmetric Key Cryptography | Private vs Public Key Cryptography
Understand the working of Symmetric Key Cryptography and Asymmetric Key Cryptography in detail with working and difference between the 2 types. Symmetric Key Cryptography(Private Key Cryptography) - 1. In symmetric-key cryptography, the same key is used by the sender (for encryption) and the receiver(for decryption). 2. The key is shared. 3. The key is Secret and kept Private between the Sender & Receiver 4. For N users in a network the number of keys required is - N(N-1)/2 Asymmetric Key Cryptography(Public Key Cryptography) 1. In asymmetric-key cryptography, 2 different keys are used. 1 for Encryption & 1 for Decryption. 2. Every communicating party needs just a key pair. 3. One of the two keys is called as Public Key and the other is the Private Key. 4. Private key remains as a secret. Public key is for the general public. 5. Only the corresponding public private key pair and encrypt and decrypt messages and no other key can be used. 6. For N users in a network the number of keys required is - N*2. Complete Network Security / Information Security Playlist - https://www.youtube.com/watch?v=IkfggBVUJxY&list=PLIY8eNdw5tW_7-QrsY_n9nC0Xfhs1tLEK Download my FREE Network Security Android App - https://play.google.com/store/apps/details?id=com.intelisenze.networksecuritytutorials Simple Snippets Official Website - https://simplesnippets.tech/ Simple Snippets on Facebook - https://www.facebook.com/simplesnippets/ Simple Snippets on Instagram - https://www.instagram.com/simplesnippets/ Simple Snippets on Twitter - https://twitter.com/simplesnippet Simple Snippets Google Plus Page - https://plus.google.com/+SimpleSnippets Simple Snippets email ID - [email protected] For More Technology News, Latest Updates and Blog articles visit our Official Website - https://simplesnippets.tech/
Views: 162 Simple Snippets
The Cryptographers’ Panel 2018
Moderator: Zulfikar Ramzan, Chief Technology Officer, RSA Ron Rivest, Institute Professor, MIT Adi Shamir, Professor, Computer Science Department, Weizmann Institute of Science, Israel Whitfield Diffie, Cryptographer and Security Expert, Cryptomathic Paul Kocher, Independent Researcher Moxie Marlinspike, Founder, Signal Despite how sophisticated information security has become, it is still a relatively young discipline. The founders of our field continue to be actively engaged in research and innovation. Join us to hear these luminaries engage in an enlightening discussion on the past, present and future of our industry. https://www.rsaconference.com/events/us18/agenda/sessions/11490-The-Cryptographers%E2%80%99-Panel
Views: 4350 RSA Conference
ICO Review: Zeepin (ZPT) - Distributed Creative Economy
Zeepin is aiming to be a disruptive creative platform and economy. Learn more: https://crushcrypto.com/zeepin-ico-review/ Download the PDF version of the presentation: https://crushcrypto.com/wp-content/uploads/2018/01/CrushCrypto-ICO-Review-Zeepin.pdf Download the free ICO Guide which contains 6 simple steps for analyzing any ICOs to find the winning projects: https://crushcrypto.com/youtube/ Note: This is not a paid review. We do not offer promotional or advertising services. Our content is based on our own research, analysis and personal opinion. _______________________________________ What does the company/project do? Zeepin is aiming to be a disruptive creative platform and economy. They are planning on taking the creative process that has existed, and decentralizing it, which would provide the opportunity for creators to operate in a trustless system. Use cases are payments and copyrighting (through time-logging of ideas/data on the blockchain), as well as providing crowdfunding and networking. The team is planning to release several features and dApps to facilitate their vision, including the following: ZeeCrew - A fast, low cost, trustless, distributed way to quickly find team members with the skills necessary to make a project become a reality. ZeeRights - A blockchain based copyright solution, providing immutable proof that a copyright belongs to the one holding the signature. ZeeProof - Going hand in hand with the service above, ZeeProof undeniably shows the existence of the copyright, without disclosing copyright contents, greatly reducing change of intellectual property violations from third parties. ZeeSure Asset Insurance - A “One Stop Shop” for insurance for digital assets, as well as legal consultation. ZeeCreate - A creative services matchmaking program, so that people looking for design ideas or services can access such quickly, and without a middleman, making the interaction essentially entirely P2P. ZeeTalent - A digital identity on the Zeepin platform, which is to match real-world KYC requirements. ZeeFund Crowdfunding - The Zeepin foundation (or a 3rd party auditor) will verify a project request for Crowdfunding, and, if approved, will be opened to the community (to pay in ZPT) to fund the project. _______________________________________ What are the tokens used for and how can token holders make money? ZPT tokens will be used in 3 main ways on the platform. Firstly, it will be how creators are paid for their work, or receive bounty if a team offers such. Whether it is your proportional profit being part of a team, or a one off service, you will be credited with ZPT tokens, or credit someone else for their service. Secondly, users can use ZPT tokens for accessing some dApp services on the network. Finally, it will also be used for investing in crowdsourced projects, which can yield a return based on a given team’s defined terms for investment. The value of ZPT tokens should, therefore, grow based on how many users of Zeepin there are. As more dApps are released, and projects are running, there will be more opportunity for ZPT use, and thus demand should go up. _______________________________________ Opportunities - The project is led by a strong team with demonstrated success in relevant creative field. - The use of blockchain and smart contract makes sense in order to send cross-border payments efficiently as well as mimic the escrow function. - By providing a one-stop-shop, a design can go from just an idea to mass production, all done within the platform. This can help creative entrepreneurs, who are often not business savvy, to launch a business successfully. _______________________________________ Concerns - The project does not have a finished MVP/proof-of-concept, so it is essentially a white paper project. - The scope of the project is very ambitious that include finding suppliers, customers, employees, filing copyright, obtaining crowdfunding, and insurance. Generally, the more ambitious a project is, the more likely it is to fail because there are so many moving parts. - It is unclear what the go to market strategy for the project is. The team has experience in China so it should be the obvious choice for the first target market, but there is no details in the white paper. _______________________________________ Disclaimer The information in this video is for educational purposes only and is not investment advice. Please do your own research before making any investment decisions. Cryptocurrency investments are volatile and high risk in nature. Don't invest more than what you can afford to lose. Crush Crypto makes no representations, warranties, or assurances as to the accuracy, currency or completeness of the content contained in this video or any sites linked to or from this video.
Views: 10932 Crush Crypto
Top 5 Best Smart Ring  which are Very Useful Tiny Wearable Futuristic Gadgets
Top 5 Best Smart Ring which are Very Useful Tiny Wearable Futuristic Gadgets NFC Ring - http://amzn.to/2AxdavS , Smart Ring - https://goo.gl/UwT1q5 , (Affiliate links - see below***) * Thanks for Watching If You Like my Content Please please * Subscribe my channel :- https://goo.gl/CG0awN * Hit Like * Comment for encourage us * Favorite in your list * Share with your friends and family ----------------------------------------­--------------------- Stay connected to Zedioptima Twitter - https://twitter.com/ZEDIOPTIMAX Facebook - https://www.facebook.com/zedioptimax Blog - http://zedioptima.blogspot.in Instagram - https://www.instagram.com/zedioptima ************************************************ Playlist you may like: Top 5 Gaming :- https://goo.gl/sieUfg Photography Camera Accessories and Gadgets :- https://goo.gl/azMu12 Futuristic Smartphone :- https://goo.gl/OtgxXf Science and Technology :- https://goo.gl/riOESn ******************************************** Kerv's sleek outer shell is lightweight, hypoallergenic and almost as scratch-resistant as diamond. Kerv contains a secure NFC contactless payment chip which is activated when brought close to a contactless reader – at retailers, in taxis or on public transport. The card reader treats Kerv in exactly the same way it would a contactless payment card, reading the encrypted data on the chip and authorising the transaction. No pairing Kerv works all by itself, so you don't need to pair it with a smartphone to make a payment. No charging Unlike smartphones and smart watches, Kerv never needs charging, so you'll always be able to pay. No worries For extra peace of mind, you can use the app to switch Kerv on or off, set restrictions and get transaction alerts. Bioring Nutrition, sleep and stress are all vital components of your overall well being. BioRing will help you control and improve these crucial aspects unlike any other wearable. BioRing is the next generation of wellness technology. Mota DOI Smart Ring Update yourself from calls, texts, and social media with vibrations from your finger. The MOTA DOI SmartRing lets you live your busy schedule, but still be able to interact with your social life and what’s important to you. Scroll from screen to screen of all the different notifications you have from your favorite applications. Whether it be Instagram, Facebook, Twitter, meeting notifications, or text messages. MOTA DOI SmartRing lets you put your phone away and still allows you to stay connected. Nimb: A Smart Ring That Helps You Feel Safe And Sound Nimb is a ring with a panic button that allows you to send an emergency alert to preset contacts from the mobile app with just the touch of a thumb. Emergencies can be scary, but Nimb provides vibration feedback to let you know that a message has gone out and help is on the way. Whether you’re in trouble, experiencing a health issue or being attacked, Nimb is there to call for help when you need it most. NFC Ring The NFC Ring comes with two special NFC tag inlays inside the ring, one for public information and one for more sensitive stuff. Unlock your Smart phone or tablet Take your NFC enabled phone out of your pocket, slide your hand on the back and the NFC Ring can unlock it. It couldn't be easier. The NFC Ring comes with two special NFC tag inlays inside the ring, one for public information and one for more sensitive stuff. Share & Transfer information You can use your NFC Ring to share Wifi information, links to websites, links to pictures, contact information or whatever you think is suitable to be passed securely to your friends smartphone's and tablets. ---------------------------------------------------------------- ***DISCLAIMER: This video,s description contains affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. it won't cost you extra. This helps support the channel and allows us to continue to make videos like this. Very much Thank you for the cordial support! -----------------------------------------------------------------
Views: 526892 ZedIOptima
SHA: Secure Hashing Algorithm - Computerphile
Secure Hashing Algorithm (SHA1) explained. Dr Mike Pound explains how files are used to generate seemingly random hash strings. EXTRA BITS: https://youtu.be/f8ZP_1K2Y-U Tom Scott on Hash Algorithms: https://youtu.be/b4b8ktEV4Bg http://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: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 381936 Computerphile
The Internet: Encryption & Public Keys
Mia Epner, who works on security for a US national intelligence agency, explains how cryptography allows for the secure transfer of data online. This educational video explains 256 bit encryption, public and private keys, SSL & TLS and HTTPS. Learn more at http://code.org/ Help us translate into your language: http://code.org/translate/videos Stay in touch with us! • on Twitter https://twitter.com/codeorg • on Facebook https://www.facebook.com/Code.org • on Instagram https://instagram.com/codeorg • on Tumblr https://blog.code.org • on LinkedIn https://www.linkedin.com/company/code... • on Google+ https://google.com/+codeorg Help us caption & translate this video! https://amara.org/v/HGaS/
Views: 178625 Code.org
What You Need to Know About the Cypherpunks
Thinking about purchasing a Ledger Nano Hardware Wallet? Browse their official website: https://www.ledgerwallet.com/r/67ef Want to join coinbase to begin your crypto journey? Here’s a link to get free $10: https://www.coinbase.com/join/558828dc34383271a500003b Step up your game and Check Out Binance too: https://www.binance.com/?ref=10080191 Join the Robinhood app and invite your friends to Robinhood and win free stock. Here's my invite: http://share.robinhood.com/heidic1 Find me on Steemit: www.steemit.com/@heiditravels Twitter: @blockchainchick Instagram: @hheidiann If you’re looking for an app that tracks the price of BTC & ETH and many other coins, check out the CoinView App: https://play.google.com/store/apps/details?id=br.com.freeflowt.coinview LINKS FOR ADDITIONAL READING FOR THIS VIDEO & ALL INFO IN TEXT DOWN BELOW Cypherpunk Manifesto: https://www.activism.net/cypherpunk/manifesto.html ’93 Wired Magazine Article on the Crypto Rebels: https://www.wired.com/1993/02/crypto-rebels/ Untold Story of Bitcoin: https://medium.com/swlh/the-untold-history-of-bitcoin-enter-the-cypherpunks-f764dee962a1 I think it’s time we take a look at the Godfathers of privacy through the use of cryptography. They call themselves the Cypherpunks. This cypherpunk movement took root in the 1980s and is centered around the idea of establishing cryptographically secured methods of ensuring privacy. If you want to learn more about this movement, reading the Cypherpunk Manifesto is a fine place to start. (https://www.activism.net/cypherpunk/manifesto.html) It was written in 1993 by Eric Hughes and has some powerful statements. It was written about 25 years ago but it is becoming increasingly more relevant as time moves on and our privacy is increasingly being eroded. Here are some key parts of the Cypherpunks manifesto that I’d like to you all to hear: “Privacy is not secrecy.” “Privacy is the power to selectively reveal oneself to the world.” This piece goes on to speak of how individuals should have the right to selectively reveal their identities in this day in age when electronic transactions and communications are now the norm. It also mentions how they are achieving privacy through uses of anonymous email that uses digital signatures and also interestingly enough, mentions electronic money. Keep in mind that this was written a good 16 years before the Genesis block of Bitcoin. Towards the end of this written piece we are introduced to their motives for writing code that will accomplish this as well as their desire to keep this code open for others to study and learn from. Over and over Eric speaks about being aware of the importance of maintaining your own privacy and shows that decentralizing their information and making it open for others to view and learn from will only help to spread and ultimately secure the future for cryptographically secured methods of communications and transactions. In my opinion, these are the people that deserve to be remembered, and we all need to take the time to understand how we can help perpetuate and solidify this movement for the future.
Views: 3414 Crypto Tips
Bitcoin Ribbons Predicts $3k Bottom, Alpha Alt Trading Spreadsheet, and XRP + LTC Trading Analysis
BTC TA using EMA Ribbon 2 look at 2014 + now show our potential path $3k Bitcoin. I introduce new Alt coin trading spreadsheet with trading notes and potential coins to look into. I follow this by using the spreadsheet 4 hot coins to follow LTC and XRP primed for potential break outs ***New Public Discord*** - https://discord.gg/xJ6JpBc Google Spreadsheet - https://tinyurl.com/y9ht83j2 Twitter - https://twitter.com/ItsMeOhHeyMatty Disclaimer - The information presented in this video is based on publicly available information. Presented information may not be the most up to date. Do your own your own research before making any investment. This video is intended to be only used as a reference only and not as investment or legal advice. I am not a financial adviser nor a legal adviser. The information in this video is not a representation of likelihood of success of any companies/projects. Sponsored content will be fully disclosed to align with FTC guidelines*** #BTC #LTC #XRP #Trading
Views: 1934 Oh Hey Matty
Advanced Bitcoin Scripting -- Part 1: Transactions & Multisig
This is the first part of a more technical talk where Andreas explores Bitcoin script, with examples from the 2nd edition of Mastering Bitcoin, focusing on the use of conditional statements, flow control, guard clauses and time locks. The examples will include advanced multi-signature scripts, hash time lock contracts and asymmetric revocable commitments. Then he answers questions about Bitcoin's quirky bugs, where Bitcoin differs from Ethereum at a scripting level, how SegWit works, how consensus rules change, and whether Bitcoin is more than just a currency. Watch Part 2 here: https://youtu.be/pQbeBduVQ4I This talk took place at the San Francisco Bitcoin Developer (@SFBitcoinDev) meetup on April 3rd, 2017: https://www.meetup.com/SF-Bitcoin-Devs/events/238773843/ Review materials on the topics presented: Chpt. 7: https://github.com/bitcoinbook/bitcoinbook/blob/develop/ch07.asciidoc Chpt. 12: https://github.com/bitcoinbook/bitcoinbook/blob/develop/ch12.asciidoc The fundamentals of Bitcoin script 2:17 Bitcoin's operators 5:00 Creating transactions (P2PKH - Pay to Public Key Hash) 6:30 Public Key CheckSigs, security by obfuscating public keys 7:42 Redeeming the script 9:05 The RIPEMD160 hash operation 12:05 OP_EQUALVERIFY, OP_CHECKSIG, & the elliptic curve digital signature algorithm (ECDSA) 14:05 Summary 18:30 Illustrating scripts: Equal, EqualVerify, CheckSig, CheckVerify, CheckMultisig, CheckLockTimeVerify 19:45 Guard clauses 23:02 Script-based timelocks 24:53 Flow control statements, interactive artificial intelligence 26:50 If, Else, EndIf 28:35 Unlocking scripts, what conditional flows do in Bitcoin 33:55 1-of-2 multi-signature script 35:44 1-of-2 multi-signature script with guard clause 38:28 2-of-3 multi-signature script 41:30 2-of-3 multi-signature script with timelock guard clause 43:20 BIP-113, how time is referenced in Bitcoin 44:42 Backup clause & other nuances in multi-signature schemes 46:58 Game theory, complexity from simplicity 52:36 2-of-3 multi-signature script, unlocking 53:45 RELATED: Bitcoin: Where the Laws of Mathematics Prevail - https://youtu.be/HaJ1hvon0E0 The rules of Bitcoin (part 1) - https://youtu.be/VnQu4uylfOs The rules of Bitcoin (part 2) - https://youtu.be/vtIp0GP4w1E Forkology: A Study of Forks for Newbies - https://youtu.be/rpeceXY1QBM Irreversibility and consumer protection - https://youtu.be/R107YWu5XzU Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and well-respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Subscribe to the channel to learn more about Bitcoin & open blockchains! If you want early-access to talks and a chance to participate in a monthly LIVE Q&A with Andreas, become a patron: https://www.patreon.com/aantonop Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 27985 aantonop
Fireside Chat about Mass Adoption - Charlie Lee & Michael Ou (CoolBitX CEO)
00:37 Michael - Stories behind CoolWallet and CoolBitX 7:20 Charlie - Stories behind Litecoin 9:03 Michael & Charlie - Mass Adoption 18:52 Michael & Charlie - Stable Coins 22:42 Michael - Hurdles for Mass Adoption 25:36 Charlie - Crypto users 27:19 Michael & Charlie - State of ICO 30:34 Charlie - Litecoin Foundation buying bank stake 34:49 Michael - CoolWallet future potential 39:21 Charlie - Go through the bear market 41:49 Charlie - Important developments for crypto 43:29 Litecoin Summit
Views: 1065 CoolWallet S
Elliptic Curve Cryptography Tutorial - Understanding ECC through the Diffie-Hellman Key Exchange
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: 13149 Fullstack Academy
Ever wonder how Bitcoin (and other cryptocurrencies) actually work?
Bitcoin explained from the viewpoint of inventing your own cryptocurrency. Videos like these made possible by patreon: https://patreon.com/3blue1brown Protocol Labs: https://protocol.ai/ Interested in contributing? https://protocol.ai/join/ Special thanks to the following patrons: http://3b1b.co/btc-thanks Some people have asked if this channel accepts contributions in cryptocurrency form as an alternative to Patreon. As you might guess, the answer is yes :). Here are the relevant addresses: ETH: 0x88Fd7a2e9e0E616a5610B8BE5d5090DC6Bd55c25 BTC: 1DV4dhXEVhGELmDnRppADyMcyZgGHnCNJ BCH: qrr82t07zzq5uqgek422s8wwf953jj25c53lqctlnw LTC: LNPY2HEWv8igGckwKrYPbh9yD28XH3sm32 Supplement video: https://youtu.be/S9JGmA5_unY Music by Vincent Rubinetti: https://soundcloud.com/vincerubinetti/heartbeat Here are a few other resources I'd recommend: Original Bitcoin paper: https://bitcoin.org/bitcoin.pdf Block explorer: https://blockexplorer.com/ Blog post by Michael Nielsen: https://goo.gl/BW1RV3 (This is particularly good for understanding the details of what transactions look like, which is something this video did not cover) Video by CuriousInventor: https://youtu.be/Lx9zgZCMqXE Video by Anders Brownworth: https://youtu.be/_160oMzblY8 Ethereum white paper: https://goo.gl/XXZddT 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: 2168917 3Blue1Brown
21. Cryptography: Hash Functions
MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Srinivas Devadas In this lecture, Professor Devadas covers the basics of cryptography, including desirable properties of cryptographic functions, and their applications to security. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 61798 MIT OpenCourseWare
The Information Age - The Power of Cryptography & Encryption (With Captions)
http://www.illumingati.co.nz "The development of Cryptography I have been pushing for the past 20 Years, to protect the integrity and privacy of the individuals and the sovereignty of states from domination by these large players" - Julian Assange The exchange of digital information has become an integral part of our society. Already tens of millions of emails are sent each day, the Internet has provided the infrustructure for the digital marketplace, and e-commerce is thriving. Money is flowing through cyberspace, and it as estimated that every day half of the world's gross domestic product travels through the Society for Worldwide Interbank Financial Telecommunications (SWIFT) network. Democrocies that referanda will begin to have online voting, and governments will increasingly use the Internet to help administer their countries, offering facilties such as online tax returns. Without a doubt, the Information Age is under way, and we live in a wired world. Critically, the success of the Information Age depends on the ability to protect the information as it flows around the world, and this relies on the power of cryptography. Encryption can be seen as providing the locks and keys of the information Age. For two thousand years encryption has been importance only to government and the military, but today it also has a role to play in facilitating business, and tomorrow ordinary people will rely on cryptography in order to protect their privacy. Fortunately, just as the Information Age is taking off, access to extraordinary strong encryption. The development of public-key cryptography, particulary the RSA cipher, has given today's cryptographers a clear advantage in their continual power struggle against cryptanalysts. If the value of N is large enough, then finding p and q takes Eve and unreasonable amount of time, and RSA encryption is therefore effectively unbreakable. Most important of all, public-key cryptography is not weakened by any key-distribution problems. In short, RSA guarantees almost unbreakable locks for our most precious pieces of information. However, as with every technology, there is a darkside to encryption. As well as protecting the communications of law-abiding citizens, encryption also protects the communication of criminals and terrorists. Currently, police forces use wiretaping as a way of gathering evidence to counter organized crime and terrorism , but this word be ineffective if criminals used unbreakable ciphers. In the twenty-first century, the fundamental dilema for cryptography is to find a way of allowing the public and businesses to use encryption in order to exploit the benefits of the Information Age, without allowing criminals to abuse encryption and avade arrest. There is currently and active and vigorous debate about the best way forward, and much of the discussion has been inspired by the story of Phil Zimmermann, an American crytographer whose attempts to encourage the widespread use of strong encryption have frightened America's security experts, threatened the billion dollar National Security Agency and made him the subject of a major inquiry and grand-jury investigation.
Views: 350 Illumi Ngati
Bitcoin Q&A: Protocol development security
What are the odds of "rogue developers" who introduce vulnerabilities? What happens if the digital signature algorithm is compromised? Is trust in hardware wallet developers and the firmware update process a problem? Note: I was mostly talking about Bitcoin and other popular open blockchains which have a large development communities and a robust review process before any new code is put in production. The risk of vulnerabilities introduced by developers is different for each project, and having open-source code does not prevent it if no one is reading or testing it. These questions were part of the monthly live Patreon Q&A session for April (rescheduled to May 5th). If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop RELATED: Software distribution security - https://youtu.be/_V0vqy046YM Geopolitics and state-sponsored attacks - https://youtu.be/htxPRTJLK-k How to get people to care about security - https://youtu.be/Ji1lS9NMz1E What is the roadmap? - https://youtu.be/5Eoj_sKyC90 Why developers are leaving banks - https://youtu.be/GqOZ4IAQ-xQ Honest nodes and consensus - https://youtu.be/KAhY2ymI-tg Why running a node is important - https://youtu.be/oX0Yrv-6jVs Lessons from the hard fork - https://youtu.be/hnAWAVNnGCw Cryptographic primitives - https://youtu.be/RIckQ6RBt5E Nonces, mining, and quantum computing - https://youtu.be/d4xXJh677J0 Public keys vs. addresses - https://youtu.be/8es3qQWkEiU Re-using addresses - https://youtu.be/4A3urPFkx8g Using paper wallets - https://youtu.be/cKehFazo8Pw Wallet design and mass adoption - https://youtu.be/WbZX6BDZJHc Secure, tiered storage system - https://youtu.be/uYIVuZgN95M The Courage to Innovate Without Permission - https://youtu.be/ywq6NBETUJ8 What is Consensus: Rules Without Rulers - https://youtu.be/2tqo7PX5Pyc Decentralized Truth - https://youtu.be/XCVaabu3J04 Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 [NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/ Subscribe to the channel to learn more about Bitcoin & open blockchains! Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 5670 aantonop
Around the Crypto World in 7 Days | Hodler's Digest
Hodler's Digest September 2-7 Subscribe to Cointelegraph: https://goo.gl/JhmfdU Tired of ETF talk? Have no fear this week, we have an ETF free zone. Goldman Sachs a victim of fake news, India sends officials to crypto college, Alibaba vs IBM in the battle of the patent kings and crypto in Venezuela. Follow COINTELEGRAPH: Website: https://cointelegraph.com/ Telegram: https://telegram.me/thecointelegraph Facebook: https://www.facebook.com/cointelegraph Twitter: https://twitter.com/cointelegraph Cointelegraph covers everything Bitcoin, bringing you the latest news, prices, breakthroughs, and analysis, with emphasis on expert opinion and commentary from the digital currency community. Around the Crypto World in 7 Days | Hodler's Digest
Views: 10940 Cointelegraph
Encryption, Privacy & Government - Interview With RT
John McAfee discusses the importance of privacy and why encryption and other tools cannot and should not be banned simply because they can be abused by some.
Views: 477 McAfee Direct
Crypto Defenses for Real-World System Threats - Kenn White - Ann Arbor
Modern encryption techniques provide several important security properties, well known to most practitioners. Or are they? What are in fact the guarantees of, say, HTTPS TLS cipher suites using authenticated encryption, IPSec vs. SSL VPNs, Property Preserving Encryption, or token vaults? We live in an era of embedded Hardware Security Modules that cost less than $1 in volume, and countless options now exist for encrypting streaming network data, files, volumes, and even entire databases. Let's take a deep dive into the edge of developed practice to discuss real-world threat scenarios to public cloud and IoT data, and look closely at how we can address specific technical risks with our current encryption toolkits. Advanced math not required. Bio: Kenneth White is a security researcher whose work focuses on networks and global systems. He is co-director of the Open Crypto Audit Project (OCAP), currently managing a large-scale audit of OpenSSL on behalf of the Linux Foundation's Core Infrastructure Initiative. Previously, White was Principal Scientist at Washington DC-based Social & Scientific Systems where he led the engineering team that designed and ran global operations and security for the largest clinical trial network in the world, with research centers in over 100 countries. White co-founded CBX Group which provides security services to major organizations including World Health, UNICEF, Doctors without Borders, the US State Department, and BAO Systems. Together with Matthew Green, White co-founded the TrueCrypt audit project, a community-driven initiative to conduct the first comprehensive cryptanalysis and public security audit of the widely used TrueCrypt encryption software. White holds a Masters from Harvard and is a PhD candidate in neuroscience and cognitive science, with applied research in real-time classification and machine learning. His work on network security and forensics and been cited by media including the Wall Street Journal, Forbes, Reuters, Wired and Nature. White is a technical reviewer for the Software Engineering Institute, and publishes and speaks frequently on computational modeling, security engineering, and trust. He tweets @kennwhite.
Views: 815 Duo Security
How Does Monero Work?
Monero is a cryptocurrency that enables private transactions. That means the sender, receiver, and transaction amount are not publicly viewable, unlike Bitcoin's blockchain. Monero's transactions stay private using the technology of ring signatures, ringCT, stealth addresses, and I2P routing. I'll explain how all of this works in this video. I do not condone the use of this technology for illegal transactions. This is powerful stuff, ideally, we start using this as a stepping stone towards a world where we get paid for our transactional data (and all the rest of our data). You'll find the jupyter notebook for this video and the associated code that I demo in the github link below. Code for this video: https://github.com/llSourcell/how_does_monero_work More learning resources: https://getmonero.org/ https://github.com/monero-project/monero https://www.monero.how/tutorial-how-to-use-the-monero-gui-wallet https://www.monero.how/tutorial-how-to-mine-monero https://99bitcoins.com/beginners-guide-to-monero/ Please Subscribe! And like. And comment. That's what keeps me going. Want more inspiration & education? Connect with me: Twitter: https://twitter.com/sirajraval Facebook: https://www.facebook.com/sirajology Instagram: https://www.instagram.com/sirajraval/ Join us in the Wizards Slack channel: http://wizards.herokuapp.com/ And please support me on Patreon: https://www.patreon.com/user?u=3191693
Views: 67510 Siraj Raval
Public key cryptography - Diffie-Hellman Key Exchange (full version)
The history behind public key cryptography & the Diffie-Hellman key exchange algorithm. We also have a video on RSA here: https://www.youtube.com/watch?v=wXB-V_Keiu8
Views: 586438 Art of the Problem
[HINDI] What is Cryptography? | Simple Practical in Android | Cryptography क्या होता है?
Link to My Blog:- http://techdjdey.blogspot.in/ Video Editor used:- HitFilm 4 Express. https://hitfilm.com/ Screen recorder used:- iSpring Free Cam 8. https://www.ispringsolutions.com/ispring-free-cam Music:- Elektronomia-Sky High. https://www.youtube.com/watch?v=TW9d8vYrVFQ PLEASE LIKE AND SHARE THIS VIDEO. SUBSCRIBE to my Channel here:- https://www.youtube.com/channel/UCFKcqq9IOdwHdgfq6GEL8gw?sub_confirmation=1 My other videos:- https://www.youtube.com/channel/UCFKcqq9IOdwHdgfq6GEL8gw/videos IGNORE THESE BELOW: 1. what is the difference between steganography and cryptography c cryptography c cryptography example c cryptography library c cryptography tutorial cryptographic protocol e cryptography f# cryptography lightweight cryptography nonlinear cryptography o cryptography r cryptography what does cryptography have to do with math what does cryptography look like today what is a certificate in cryptography what is a cipher in cryptography what is a crib in cryptography what is a generator cryptography what is a hash cryptography what is a nonce in cryptography what is a public key cryptography what is a quantum cryptography what is a seed in cryptography what is a symmetric cryptography what is advantages of cryptography what is asymmetric key cryptography what is biometric cryptography what is bitcoin cryptography what is broken cryptography what is cbc cryptography what is chaos cryptography what is chaotic cryptography what is cipher cryptography what is classical cryptography what is cloud cryptography what is confusion and diffusion in cryptography with example what is conventional cryptography what is cryptographic hash function what is cryptographic hash functions examples what is cryptography what is cryptography algorithm what is cryptography and cryptanalysis what is cryptography and encryption what is cryptography and history what is cryptography and how is it used what is cryptography and how is it used in it security what is cryptography and its importance what is cryptography and its types what is cryptography and network security what is cryptography and network security ppt what is cryptography and network security wikipedia what is cryptography and number theory what is cryptography and steganography what is cryptography and theoretical informatics what is cryptography and why is it important what is cryptography and why is it used what is cryptography basics what is cryptography computer what is cryptography define the process of encryption and decryption what is cryptography definition what is cryptography doc what is cryptography encryption what is cryptography engineering what is cryptography error what is cryptography explain what is cryptography explain in detail what is cryptography explain its types what is cryptography hashing what is cryptography how is it used in it security what is cryptography in .net what is cryptography in c# what is cryptography in computer what is cryptography in computer network what is cryptography in computer security what is cryptography in cyber security what is cryptography in hindi what is cryptography in information security what is cryptography in java what is cryptography in mathematics what is cryptography in network security what is cryptography in networking what is cryptography in operating system what is cryptography in os what is cryptography in registry what is cryptography in security what is cryptography in simple language what is cryptography in web security what is cryptography key what is cryptography key management what is cryptography law what is cryptography library what is cryptography method what is cryptography module what is cryptography network security what is cryptography next generation what is cryptography pdf what is cryptography ppt what is cryptography provide an example what is cryptography quora what is cryptography rng seed what is cryptography salary what is cryptography salt what is cryptography service what is cryptography slideshare what is cryptography software what is cryptography system what is cryptography teach ict what is cryptography technique what is cryptography technology what is cryptography tools what is cryptography tutorial point what is cryptography types what is cryptography used for what is cryptography used for today what is cryptography video what is cryptography virus what is cryptography wikipedia what is cryptography with diagram what is cryptography with example what is cryptography yahoo what is cryptography yahoo answers what is cryptography youtube what is data cryptography what is des cryptography what is difference between cryptography and encryption what is difference between cryptography and steganography what is diffusion cryptography what is digital cryptography what is discrete logarithm in cryptography what is distributed cryptography what is dna cryptography what is dsa cryptography what is ecc cryptography what is elementary cryptography
Views: 2033 Dhrubajyoti Dey
Schnorr signatures for Bitcoin: challenges and opportunities - BPASE '18
Schnorr signatures for Bitcoin: challenges and opportunities - Pieter Wuille BPASE '18, January 24-26th 2018, Stanford University Stanford Cyber Initiative Slides and a full listing of talks are available at https://cyber.stanford.edu/bpase18
Views: 5571 Cyber Initiative
What is Ethereum? A Simple Explanation Anyone Can Understand
What is Ethereum? A Simple Explanation Anyone Can Understand You'll receive $10 in free bitcoin by signing up with this link http://bit.ly/2oesV41 Blockchain Revolution Book: http://amzn.to/2nXGGqY Buy Ethereum: http://bit.ly/2oesV41 Ethereum Course: http://courses.blockgeeks.com/ What is Ethereum for beginners? At its simplest, Ethereum is an open software platform based on blockchain technology that enables developers to build and deploy decentralized applications. Is Ethereum similar to Bitcoin? Well, sort of, but not really. Like Bitcoin, Ethereum is a distributed public blockchain network. Although there are some significant technical differences between the two, the most important distinction to note is that Bitcoin and Ethereum differ substantially in purpose and capability. Bitcoin offers one particular application of blockchain technology, a peer to peer electronic cash system that enables online Bitcoin payments. While the bitcoin blockchain is used to track ownership of digital currency (bitcoins), the Ethereum blockchain focuses on running the programming code of any decentralized application. In the Ethereum blockchain, instead of mining for bitcoin, miners work to earn Ether, a type of crypto token that fuels the network. Beyond a tradeable cryptocurrency, Ether is also used by application developers to pay for transaction fees and services on the Ethereum network. “Bitcoin is first and foremost a currency; this is one particular application of a blockchain. However, it is far from the only application. To take a past example of a similar situation, e-mail is one particular use of the internet, and for sure helped popularise it, but there are many others.” Dr Gavin Wood, Ethereum Co-Founder What is a smart contract? Smart contract is just a phrase used to describe computer code that can facilitate the exchange of money, content, property, shares, or anything of value. When run on the blockchain a smart contract becomes like a self-operating computer program that automatically executes when specific conditions are met. Because smart contracts run on the blockchain, they run exactly as programmed without any possibility of censorship, downtime, fraud or third party interference. My name is Ameer Rosic, and I'm a serial entrepreneur, investor, marketing Strategist and Blockchain Evangelist Buy Bitcoin & Ethereum http://bit.ly/2oesV41 Get One-to-One Consulting https://clarity.fm/ameerrosic Blog http://www.Ameerrosic.com blockgeeks: http://www.blockgeeks.com Facebook http://www.Facebook.com/ameerrosic Twitter http://www.Twitter.com/ameerrosic InstaGram http://www.Instagram.com/ameerrosic
Views: 467573 Ameer Rosic
From Bitcoin To Hashgraph (Documentary) Hidden Secrets Of Money Episode 8
Bonus Features: http://www.hiddensecretsofmoney.com Today, mankind stands at a crossroads, and the path that humanity chooses may have a greater impact on our freedom and prosperity than any event in history. In 2008 a new technology was introduced that is so important that its destiny, and the destiny of mankind are inextricably linked. It is so powerful that if captured and controlled, it could enslave all of humanity. But if allowed to remain free and flourish - it could foster unimaginable levels of peace and prosperity. It has the power to replace all financial systems globally, to supplant ninety percent of Wall St, and to provide some functions of government. It has no agenda. It's always fair and impartial. It can not be manipulated, subverted, corrupted or cheated. And - it inverts the power structure and places control of one's destiny in the hands of the individual. In the future, when we look back at the 2.6 million-year timeline of human development and the major turning points that led to modern civilization - the creation of farming, the domestication of animals, the invention of the wheel, the harnessing of electricity and the splitting of the atom - the sixty year development of computers, the internet and this new technology will be looked upon as a single event...a turning point that will change the course of human history. It's called Full Consensus Distibuted Ledger Technology, and so far its major use has been for cryptocurrencies such as Bitcoin....but its potential goes far, far beyond that. The Crypto Revolution: From Bitcoin to Hashgraph is our latest episode of Hidden Secrets of Money. It’s about the evolution of cryptocurrencies and full consensus distributed ledger technology, and how they will change our world. I believe that this video is by far the easiest way for the average person to gain an understanding of what cryptocurrencies are and how they work, but more importantly, the immense power of full consensus distributed ledger technology and the impact it will have on our daily lives. I have an absolute passion for monetary history and economics, and I love teaching them. Cryptocurrencies are our future, and there is no escaping it… this is the way everything will be done from now on. But, we now stand at a crucial turning point in history. Full consensus ledgers such as Blockchain and Hashgraph have the power to enslave us, or free us… it all depends on how we choose to use them. If we choose to support centralized versions issued by governments and the financial sector we will be granting them more control over our daily lives. Politicians and bureaucrats will be able raise taxes instantly, whenever they want, on every dollar you make as you make them, and every dollar you spend as you spend them. If they think the economy needs stimulating they'll be able to enforce huge negative interest rates, effectively punishing you for not spending everything you earn before you earn it. They'll be able to decide where you can go and where you can’t, what you can buy and what you can’t, and what you can do and whatever they decide you can’t do… and if they don't like you, they can just disconnect you from the monetary system. So, will the monetary system become fully distributed and help to free mankind, or will it be centralized and enslave us? The choice is in front of us right now, and our decisions will create our future. I believe that this will be a binary outcome, there is no middle ground, it will either be one future or the other. The question is, will it be the future we want? Or the future they want? I’m a precious metals dealer and one thing I’ve learned is that gold, silver, and now free market decentralized cryptocurrencies, represent freedom. Because of this knowledge I started investing in crypto currencies long ago and also became one of the first precious metals dealers to accept bitcoin as payment for gold and silver. I would really appreciate it if you could share this video with everyone you know. I think it’s very important that as many people as possible find out about the changes to the global monetary system that are happening right now… nothing will affect us more, and everyone’s future depends on it. Thanks, Mike If you enjoyed watching this video, be sure to pick up a free copy of Mike's bestselling book, Guide to Investing in Gold & Silver: https://goldsilver.com/buy-online/investing-in-gold-and-silver/ (Want to contribute closed captions in your language for our videos? Visit this link: http://www.youtube.com/timedtext_cs_panel?tab=2&c=UCThv5tYUVaG4ZPA3p6EXZbQ)
Bitcoin Q&A: Full node and home network security
Does running a Bitcoin and Lightning node at home attract hackers? Why is security through obscurity not the best strategy? What is some general advice on securing your personal computer and home network? Are there full node starter kits? Could bitcoin nodes be cut off if ISPs blocked port 8333? How do nodes connect to each other? How could you route around censorship? Will Bitcoin evolve into a more stealthy and anonymous protocol? These questions are from the June monthly Patreon session, which took place on June 24th 2018. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop RELATED: Bitcoin, Lightning, and Streaming Money - https://youtu.be/gF_ZQ_eijPs The Internet of Money: Five Years Later - https://youtu.be/6xIq0FdmsIA The Lightning Network - https://www.youtube.com/playlist?list=PLPQwGV1aLnTurL4wU_y3jOhBi9rrpsYyi Advanced Bitcoin Scripting, Part 1: Transactions and Multisig - https://youtu.be/8FeAXjkmDcQ Advanced Bitcoin Scripting, Part 2: SegWit, Consensus, and Trustware - https://youtu.be/pQbeBduVQ4I The Lightning Network - https://youtu.be/vPnO9ExJ50A Lightning's security model - https://youtu.be/_GNsT_ufkec Misconceptions about the Lightning Network - https://youtu.be/c4TjfaLgzj4 Eltoo, and the early days of Lightning - https://youtu.be/o6eFZ5aI9N0 Lightning Network scaling - https://youtu.be/4KiWkwo48k0 Lightning Network interoperability - https://youtu.be/1HYMWcJHGXc Lightning Network game theory - https://youtu.be/7if0DuTtozY Atomic swaps - https://youtu.be/fNFBA2UmUmg Running nodes and payment channels - https://youtu.be/ndcfBfE_yoY What is Segregated Witness (SegWit)? - https://youtu.be/dtOjjB4mD8k SegWit and fork research - https://youtu.be/OorLoi01KEE Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 [NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/ Subscribe to the channel to learn more about Bitcoin & open blockchains! Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 6065 aantonop
Cryptography: Codes, Ciphers, and Connections
The encryption of information is as old as information itself. Ever since two people wanted to pass something along, so has there been a third party who wanted to be privy to it. This back and forth battle of creating codes, breaking them, and finding new ones has been happening quietly for thousands of years. Now, in an age when information flows freely and instantaneously, the field of cryptography is more important than ever. Watch the Full Program Here: https://youtu.be/nVVF8dgKC38 Original Program Date: June 4, 2011 The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future. Subscribe to our YouTube Channel for all the latest from WSF. Visit our Website: http://www.worldsciencefestival.com/ Like us on Facebook: https://www.facebook.com/worldsciencefestival Follow us on twitter: https://twitter.com/WorldSciFest
22. Cryptography: Encryption
MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Srinivas Devadas In this lecture, Professor Devadas continues with cryptography, introducing encryption methods. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 14597 MIT OpenCourseWare
Friday Sitecore Best Practice: Update Media Secret Hash Key
In this episode we talk about the importance of changing the Media.RequestProtection.SharedSecret setting and the possible consequences that await you if you don't.
Views: 251 Vasiliy Fomichev
Identify Photoshopped (Fake) Images - Neural Network Project using Java
"A picture is worth a thousand words". In the modern world, anyone can alter and edit images using a wide variety of tools. So, it is important to make sure the authenticity of images. This project 'Fake Image Detector' is a machine learning powered Java FX application that can identify fake images. We have used a Multilayer perceptron network with backpropagation learning rule. This application provides two step detection. First step is metadata analysis which checks the information contained within the image file and looks for tags that relates to faking. In the second part, a neural network is used to evaluate the image. This project uses 'Error Level Analysis' for finding fake images. Project: https://github.com/afsalashyana/FakeImageDetection Neural net library: http://neuroph.sourceforge.net Dataset: http://forensics.idealtest.org/casiav2/ Error Level Analysis: http://www.errorlevelanalysis.com/ Java Neural network JavaFX project #MachineLearning #NeuralNetwork #AI #Fake_Image #JavaFX
Views: 788 Genuine Coder
Encryption Part I: Introduction to Encryption 2
The second video in our Introduction to Encryption, covering Asymmetric (or Private Key) encryption and hashing. If you want to play around with different hashing algorithms, check this site out: http://www.sha1-online.com/
Views: 35179 Shane Killian
SSL Certificate Error Fix
This is a tutorial on how to fix the ssl error or 107 error,in google applications.
Views: 604430 Ilya Novickij
Green Address Digital Wallet Sign Up and Getting Started Tutorial For Beginners
Green Address Cryptocurrency Digital Wallet Sign Up and Getting Started Tutorial For Beginners 2018 Green Address is a user-friendly Bitcoin wallet thats an excellent choice for beginners. Green Address is accessible via desktop, online or mobile with apps available for Chrome, iOS, and Android. Features include multi-signature addresses & two-factor authentications for enhanced security, paper wallet backup, and instant transaction confirmation. A downside is that Green Address is required to approve all payments, so you do not have full control over your spending. What is a Cryptocurrency Wallet? A cryptocurrency wallet is a software program that stores private and public keys and interacts with various blockchain to enable users to send and receive digital currency and monitor their balance. If you want to use Bitcoin or any other cryptocurrency, you will need to have a digital wallet. To learn more about Digital Wallets CLICK the link below https://www.cryptocurrencyenterprises.com.au/What-is-a-Digital-Wallet.html Click the link below to join Green Address https://greenaddress.it/en/ In this step-by-step Green Address video tutorial, you will be guided through the process of setting up your accounts, dashboard navigation, 2-factor authentication, wallets, sending, receiving. help and support plus all the essential steps you need to take to protect yourself. Learning how to invest in cryptocurrency before putting your money on the line is extremely important. Unlike banks, credit unions, or traditional stock exchanges, there are no pre-built fail safes in this technology to protect your funds. It's up to you to take the necessary steps before buying cryptocurrency to ensure the security of your investments. Cryptocurrency is cutting-edge technology; it’s the modern day wild west, so it requires some focused time and energy to wrap your head around. Luckily for you, Crypto Currency Enterprises done a lot of the hard work to compile this step-by-step beginner’s guide to ensure you receive the knowledge and understanding you need to be successful in cryptocurrency investments. Always remember the number 1 golden rule of investing: NEVER invest more than you can afford to lose. Cryptocurrency is a lot more volatile and unpredictable than the stock market. Unlike the 9 to 5 New York stock exchange, cryptocurrency is traded around the world 24/7. Disclaimer: Everything expressed here is our opinion and not official investment advice - please do your own research before risking your own money! Thanks for watching! Please like, subscribe, and share if you found this useful! Questions or comments please e-mail [email protected] Earn as you Learn join our crypto community for FREE today check out our website or CLICK the link below to get started. https://www.cryptocurrencyenterprises.com.au/Enrolment.html CCE Website http://www.cryptocurrencyenterprises.com.au Follow us on Facebook https://www.facebook.com/cryptocurrencyenterprises/ Follow us on Instagram https://www.instagram.com/cryptocurrencyenterprises/ Getting Started with Bitcoin and Cryptocurrency https://www.cryptocurrencyenterprises.com.au/The-History-of-Money.html Cryptocurrency Exchanges Coinjar https://www.coinjar.com/_ref/@Shanon001 Coinspot https://www.coinspot.com.au?affiliate=QUQP5 Binance https://www.binance.com/?ref=23079967 Cryptopia https://www.cryptopia.co.nz/Register?referrer=shanonstewart Coinbase https://www.coinbase.com/join/59fba9002120ec0158ec62f1 HITBTC https://hitbtc.com/?ref_id=5abc7bfdb9ed5 Local Bitcoins https://localbitcoins.com/?ch=osw3 Spectrocoin https://spectrocoin.com/?referralId=4060107462 Virwox https://www.virwox.com/?r=242c93 CEX.IO https://cex.io/r/0/up119480141/0/ Changelly https://changelly.com/?ref_id=f80c29deaaf3 Coinigy https://www.coinigy.com/?r=7e07de84 EXMO https://exmo.com/?ref=1378244 Bitmex https://www.bitmex.com/register/e9C0GE XCoins https://xcoins.io/?r=pqv7u1 Coinmama http://www.Coinmama.com/?ref=cryptocurrencyenterprises Secure your coins with a hardware wallet! Trezor https://[email protected] Ledger Nano https://www.ledgerwallet.com/r/bf2 Income Platforms for growing your cryptocurrency Tradealts tradealts.com/members/user/[email protected] Hashflare Cloud Mining https://hashflare.io/r/DD6EDC4E iCentre BTC Auto Bot https://t.me/icenter_bot?start=hwejuk53821 iCentre Litecoin Auto Bot https://t.me/iCenter_Lite_BOT?start=im5iwv13577 iCentre Ethereum Auto Bot https://t.me/iCenter_ETH_Bot?start=pozk173640 Crypto Love Donation: Bitcoin Address 1AKRj92XNrKXkM3GTd179dDetwT95s1E9Z Ethereum Address 0x5b9a72598990d63d5f33759a654d89f458ba0347 Litecoin Address MRUPmnBpJgi9K3322VFDiHnqg8v3YNPqdB
What is Bitcoin MimbleWimble? Programmer explains.
What is MimbleWimble and Grin and why is it so important for Bitcoin? Both Bitcoin Scaling and Bitcoin Privacy. https://www.mycryptopedia.com/what-are-confidential-transactions/ https://www.mycryptopedia.com/mimblewimble-explained/ https://en.bitcoin.it/wiki/CoinJoin https://grin-tech.org/ https://github.com/mimblewimble/grin https://www.youtube.com/watch?v=aHTRlbCaUyM 🎓 BECOME BLOCKCHAIN BUSINESS LEADER http://business.ivanontech.com SIGN UP FOR YOUTUBE NOTIFICATIONS: http://eepurl.com/dADBVj Good Morning Crypto! Thanks for watching guys 💝 JOIN VIP Facebook Group: https://www.facebook.com/groups/154642935214122/?source=create_flow 🎓 LEARN ALL ABOUT BLOCKCHAIN BUSINESS http://business.ivanontech.com 🎓 LEARN SMART CONTRACT PROGRAMMING http://coding.ivanontech.com 🎓 Join my online academy https://academy.ivanontech.com 👬 Join the crypto discussion forum - https://forum.toshitimes.com 📣 Join Telegram channel https://t.me/joinchat/AAAAAE2xJE4l8xhC8MU4cg 🎤 If you would like me to speak at your conference, book me here: https://ivanontech.com #bitcoin #blockchain #ivanontech 👫👭👬Social: LinkedIn: http://linkedin.com/in/ivanliljeqvist/ Instagram: http://instagram.com/ivanontech/ Steemit: https://steemit.com/@ivanli Facebook: http://facebook.com/ivanontech/ Exclusive email list: http://eepurl.com/c0hyc9 💰 Secure your Crypto with Hardware Wallets: Ledger: https://www.ledgerwallet.com/r/4607 Trezor: https://trezor.io/?a=rvj3rqtje3ph DISCLAIMER: This is NOT financial advice. This is just my opinions. I am not responsible for any investment decisions that you choose to make. Ivan on Tech is all about cryptocurrencies and the technology behind Bitcoin, Ethereum, Litecoin, Ripple, IOTA. We also cover Bitcoin price, altcoin price, investing, analytics, different altcoins. Ivan on Tech by Ivan Liljeqvist
Views: 14775 Ivan on Tech
Blockchain & Cryptocurrency Basics
This video explains basics of Blockchain and cryptocurrencies. This webinar is presented by Rahul Bagal . Rahul is technologies and founder of IncubXperts TechnoConsulting Pvt Ltd. ( www.incubxperts.com ) In order to understand blockchain first few building blocks of blockchain needs to be understood. 1. Distributed shared ledger – The ledger concept is briefly explained using Rai stones - Yap Currency on the islands of Micronesia near Philippines – This is currency of native tribal people. The way Rai stones are used as Yap currency is primitive form of distributed ledger. 2. Cryptography – Blockchain uses cryptographic functions such as hashing & public key cryptography. Video explains use of public key Cryptography ( Digital Signature ) and Cryptographic hash functions 3. Another important building block of blockchain is P2P network. Every node of network is a client as well as Server. This is similar technology that is used in Bit Torrent network. 4. Game Theory – Node of P2P network validate transaction by Consensus with economic incentive ( Proof of Work & Proof of Stake etc. ) Highlights of BITCOIN Blockchain 1. No Single entity controls it. 2. Shared & Public ledger of transactions 3. Anyone can inspect the transactions. 4. The transactions are added to ledger on Consensus from nodes For any questions or feedback please contact Rahul using https://chain-expert.com/feedback/ Visit https://www.chain-expert.com/ for more information on Blockchain.
Views: 22 chain-expert.com
Bitcoin: How Cryptocurrencies Work
Whether or not it's worth investing in, the math behind Bitcoin is an elegant solution to some complex problems. Hosted by: Michael Aranda Special Thanks: Dalton Hubble Learn more about Cryptography: https://www.youtube.com/watch?v=-yFZGF8FHSg ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters—we couldn't make SciShow without them! Shout out to Bella Nash, Kevin Bealer, Mark Terrio-Cameron, Patrick Merrithew, Charles Southerland, Fatima Iqbal, Benny, Kyle Anderson, Tim Curwick, Will and Sonja Marple, Philippe von Bergen, Bryce Daifuku, Chris Peters, Patrick D. Ashmore, Charles George, Bader AlGhamdi ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow ---------- Sources: https://bitinfocharts.com/ https://chrispacia.wordpress.com/2013/09/02/bitcoin-mining-explained-like-youre-five-part-2-mechanics/ https://www.youtube.com/watch?v=Lx9zgZCMqXE https://www.youtube.com/watch?v=nQZUi24TrdI https://bitcoin.org/en/how-it-works http://www.forbes.com/sites/investopedia/2013/08/01/how-bitcoin-works/#36bd8b2d25ee http://www.makeuseof.com/tag/how-does-bitcoin-work/ https://blockchain.info/charts/total-bitcoins https://en.bitcoin.it/wiki/Controlled_supply https://www.bitcoinmining.com/ http://bitamplify.com/mobile/?a=news Image Sources: https://commons.wikimedia.org/wiki/File:Cryptocurrency_Mining_Farm.jpg
Views: 2484708 SciShow
CoSign Securely Signs Documents on iOS Devices
The CoSign mobile app is the quickest way to securely sign your documents on the go, using legally binding, tamper-proof digital signatures that ensure signer identity and document integrity. Just like in the office. The mobile app gives you all the benefits of CoSign whenever you need to add secure, legally binding, digital signatures to a document – whether you’re at the office, on a work site, on vacation or on the golf course.
Altcoins This Week: LTC Acquires Stake In Bank, Trump Orders Creation Of Crypto Task Force And More
Altcoins This Week: LTC Acquires Stake In Bank, Trump Orders Creation Of Crypto Task Force And More Subscribe: http://bit.ly/CryptoCoinNewsYT Crypto Low Prices Good News For Gamers With cryptocurrency prices in decline this year, demand for high spec gaming cards has abated, meaning that gamers themselves no longer have to compete with crypto miners to get their hands on the best hardware on the market. Computerworld reported this week that crypto miners are parting with their GPU’s on secondary markets, as Bitcoin and other cryptocurrencies have become too expensive to mine and less profitable with declining prices stifling markets since January. Trump Takes Cryptos To Task In Cyber-Fraud Crackdown Donald Trump was in no mood for games this week, signing an Executive Order to create a task force to investigate digital currencies, market manipulation and money laundering. It will be led by the Deputy Attorney General, has a wide remit, and is a further sign that US authorities are stepping up their campaign against organized crime and money laundering using digital currencies. World’s First Crypto Bank Mooted in Malta Not content with being the world’s largest crypto exchange by market volume, Binance looks set to play a leading role in the development of the world’s first decentralized, community-owned bank, reported Bloomberg this week. LiteCoin Weighs In To German Bank Market Staying with banks, Litecoin founder Charlie Lee announced this week that it had acquired a stake in a German bank. Using a “strategic partnership with TokenPay”, the Litecoin Foundation acquired 9.9% of WEG Bank. The deal between TokenPay and Litecoin sees the crypto, \- currently the sixth largest in terms of market capitalization\- lay its “high-level blockchain mechanism capabilities” at the feet of the payment platform. Under German law, no more than 9.9% of a bank can be purchased without regulatory approval. Weekend Recovery Short-Lived Litecoin (LTC) was the exception to the rule this week, after a decent weekend’s trading gave way to a sharp decline. Ether (ETH) opened Monday at $488, but had plummeted to $429 by Wednesday, its lowest point for two weeks. Similarly, XRP lost momentum midweek, seeing its $0.48 Monday high retreat to $0.44 by Wednesday. Bitcoin Cash (BCH) showed some recovery last week, but this week came crashing back down to earth, losing $70 in 24 hours between Monday and Tuesday. It’s early week high of $751 gave way to a low of $688. The Tuesday blues affected EOS too; a Monday high of $8.71 a far cry from its Wednesday low of $6.85. Litecoin’s bank announcement mitigated the general market decline, and its dip from an opening $82.54 to a Wednesday low of $76.07 was softer than most. Read more on: https://cryptocoin.news/videos/altcoins-this-week-ltc-acquires-stake-in-bank-trump-orders-creation-of-crypto-task-force-and-more-17692/
Views: 5722 CryptoCoin.News
What Is Encryption In Hindi Explained As Fast As Possible
What Is Encryption In Hindi Explained As Fast As Possible. Friends,In This Video I Have Explained What Is Encryption In Hindi Or Cryptography In Hindi As Fast As Possible.In This Video You Will Learn What Is Encryption & Cryptography In Hindi Language.Encryption is The Way To Translate Data To Secret Code.To Know More About What Is Encryption In Hindi Or Cryptography You Should Watch This Video Till The End. Doston Is Video Mein Maine What Is Encryption In Hindi Or Cryptography In Hindi Mein Explain Kiya Hai.Encryption Data Ko Secure Karne Ka Best Way Hai.Kisi Bhi Data Ko Secure Code Mein Translate Karne Ko Encryption Kaha Jaata Hai,Agar Aap Jaanana Chahte Hai Ki What Is Encryption In Hindi Or Cryptography,To Aapko Is Video Ko Ek Baar Pura Dekhna Padega. This Is The Channel About Latest Hackers News,,Computer Science & Technology Videos,Computer Tricks In Hindi,Mobile Phones & Android Tricks And Tips In Hindi Language,Electronic Gadgets Videos. -~-~~-~~~-~~-~- Please Visit To Our Website...http://waystomakemoneyonlineguide.com -~-~~-~~~-~~-~-
Views: 58 Hackers News
Ripple XRP - 10$ THIS YEAR! 133 PARTNERSHIPS!! 800k+ twitter following. COINBASE?
Ripple XRP connects banks, payment providers, digital asset exchanges and corporates via RippleNet to provide one frictionless experience to send money globally. ●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬● Business Inquiries: [email protected] ●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬● EXCHANGES Binance: https://www.binance.com/?ref=16368285 ●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬● Make Money Mining Bitcoin Here: https://hashflare.io/r/BF686DBE ●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬● SOCIAL MEDIA FACEBOOK GROUP: Bitcoin [Canada] https://www.facebook.com/groups/20451... TWITTER: https://twitter.com/KayStarSeven STEEMIT: https://steemit.com/@kevinattipoe TELEGRAM: https://t.me/cryptopedianetwork ●▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬● Disclaimer: Statements on this site do not represent the views or policies of anyone other than myself. The information on this site is provided for discussion purposes only, and are not investing recommendations. Under no circumstances does this information represent a recommendation to buy or sell securities.
Views: 1729 Cryptopedia
DEFCON 20:Network Anti-Reconnaissance: Messing with Nmap Through Smoke and Mirrors
Speaker: DAN "ALTF4" PETRO SECURITY RESEARCHER, DATASOFT CORP Reconnaissance on a network has been an attacker's game for far too long, where's the defense? Nmap routinely evades firewalls, traverses NATs, bypasses signature based NIDS, and gathers up the details of your highly vulnerable box serving Top Secret documents. Why make it so easy? In this talk, we will explore how to prevent network reconnaissance by using honeyd to flood your network with low fidelity honeypots. We then discuss how this lets us constrain the problem of detecting reconnaissance such that a machine learning algorithm can be effectively applied. (No signatures!) We will also discuss some important additions to honeyd that we had to make along the way, and perform a live demonstration of our free software tool for doing all of the above: Nova. Dan "AltF4" Petro: By day, Alt is a security researcher for DataSoft Corp, a small business in Scottsdale Arizona, where he focuses on developing open source tools for network security. He holds a M.S. in Information Assurance from Arizona State University where he studied network security and cryptographic protocols. By night, he is a rogue free software and privacy activist with a penchant for the dramatic. He is a lifelong hacker and regular member of the Phoenix 2600. Twitter: @2600AltF4 For more information visit: http://bit.ly/defcon20_information To download the video visit: http://bit.ly/defcon20_videos Playlist DEFCON 20: http://bit.ly/defcon20_playlist
Views: 3218 Christiaan008
Interview with Bitcoin.com CEO Roger Ver
비트코인닷컴 대표 로저 버 대담 The debate continues on virtual currencies. Is it here to stay or will it fizzle out. What about government intervention, how much is too much? Regardless, there's no denying the potential for it to accelerate technological innovation through peer-to-peer payment systems. Synonymous with the enigmatic phenomenon is Bitcoin To get a glimpse of the possible future of cryptocurrencies, past the slew of challenges standing in the way, our Kim Hyesung sat down with Roger Ver, the CEO and founder of Bitcoin-dot-com. CEO of Bitcoin.com, Roger Ver, was one of the earliest investors in bitcoin and related startups, even earning himself the nickname "Bitcoin Jesus" as a vocal advocate of the world's number one digital currency. "Thanks to the internet, anybody in the world could communicate with anyone else, anywhere in the world. Now, thanks to the invention of Bitcoin and cryptocurrencies in general, now anyone, anywhere in the world can transact financially with anyone else anywhere in the world. They don't need permission from a bank or a company or a government to do so. So it's a very interesting time to be involved in this." The price of Bitcoin exploded last year,... flying well past ten-thousand U.S. dollars. But prices fell sharply early this year, ushering in a bear season that saw Bitcoin post its worst ever first-quarter performance. Q.Some critics say Bitcoin will collapse or is a bubble ready to burst? What's your take on that? I think it's just a temporary market correction. It's hard to be disappointed by the price here, considering it's up several times from what it was last year at this time. You should look at cryptocurrency as the most useful in commerce. Those are the ones that will perform the best over time in terms of price appreciation against the dollar or the won. It's not just price volatility, there are also concerns over a lack of safeguards as well as the hacking of cryptocurrency exchanges and digital wallets. Q. Some argue that for virtual currency to be traded safely and go mainstream, there need to be some kind of regulations. What kind of regulatory measures should be taken, if any? I'll give the practical answer, which is that businessmen need to know what the rules of the game are going to be so they can run their businesses accordingly, and grow their businesses and expand to help customers around the world. In as far as consumer protection, that's the business's job. I think I'm really really skeptical that politicians are going to know better how to keep cryptocurrency safe than businessmen and users who are actually using the cryptocurrencies." Cryptocurrencies are transacted peer-to-peer through a decentralized system backed by blockchain technology. But while it's used in the real world by millions of law-abiding citizens, there are mounting concerns over its potential misuse for illegal activities, like money laundering or funding terrorism. Governments have started to weigh in...debating Bitcoin's legal status, how to run exchanges, initial coin offerings, the issue of taxation and so on....and it even became one of the key themes at this year's G20 summit. In uncharted waters, the cryptocurrency community is also discussing the industry's direction. At the Deconomy 2018 forum in Seoul, companies like Bitcoin.com, Ethereum, and others insisted that while other things remain unclear right now, technological advances in software, mining and multi-signature wallets are needed to enhance security and cost-effectiveness. "There is a long, long ways to go when it comes to cryptocurrency. It's still a little bit difficult, a little bit hard, there's a lot to learn, so there's huge amount of room for improvement." Kim Hyesung, Arirang News. Arirang News Facebook: http://www.facebook.com/arirangtvnews ------------------------------------------------------------ [Subscribe Arirang Official YouTube] ARIRANG TV: http://www.youtube.com/arirang ARIRANG RADIO: http://www.youtube.com/Music180Arirang ARIRANG NEWS: http://www.youtube.com/arirangnews ARIRANG K-POP: http://www.youtube.com/arirangworld ARIRANG ISSUE: http://www.youtube.com/arirangtoday ARIRANG CULTURE: http://www.youtube.com/arirangkorean ARIRANG FOOD & TRAVEL : http://www.youtube.com/ArirangFoodTravel ------------------------------------------------------------ [Visit Arirang TV Official Pages] Facebook: http://www.facebook.com/arirangtv Twitter: http://twitter.com/arirangworld Instagram: http://instagram.com/arirangworld Homepage: http://www.arirang.com ------------------------------------------------------------ [Arirang K-Pop] YouTube: http://www.youtube.com/arirangworld Facebook: http://www.facebook.com/arirangkpop Google+: http://plus.google.com/+arirangworld
Blockstack - A New Internet for Decentralized Apps
blockstack.org DISCLAIMER: The Blockstack Tokens are a crypto asset that is currently being developed by Blockstack Token LLC, a Delaware limited liability company, whose website can be found at www.blockstack.com. This video does not constitute an offer or sale of Blockstack Tokens (the Tokens) or any other mechanism for purchasing the Tokens (such as, without limitation, a fund holding the Tokens or a simple agreement for future tokens related to the Tokens). Any offer or sale of the Tokens or any related instrument will occur only based on definitive offering documents for the Tokens or the applicable instrument.
Views: 5116897 Blockstack
Is Spotify Becoming a Label?
PUNM Podcast: Spotify playlist pitching with George Goodrich: http://apple.co/2j2ehMJ Support Payusnomind by trying the new Brave Browser: brave.com/pay747 Try Feature.fm: http://bit.ly/2isbFtM Join Songtrust: http://bit.ly/2zNoa84 Book a Consultation: http://bit.ly/2jaU8Ux View Payusnomind Marketing Solutions: http://bit.ly/2FGfZxe Get the E-Book "Guide to Youtube Advertising": https://gumroad.com/l/pNVmq Get the E-Book "Everything You're Owed" A Guide to music royalty collection: https://goo.gl/FtIR8L Get the E-Book: HOW TO GET YOUR MUSIC HEARD: https://goo.gl/yrCqtw Get the Digital Distribution E-Book bundle: http://bit.ly/2xb0ADK Contains: CD Baby Review Tunecore Review Distrokid Review ONErpm Review Reverbnation Review and more Head to head comparison of Cd Baby, Tunecore, Distrokid, ONErpm, and Reverbnation Guide to How to Pick a Digital Distributor Get the E-Book: PPC Advertising: Fundamentals for Beginners: https://gum.co/ppcadvertising Donate: http://bit.ly/2kEqx74 Crypto Addresses: Donate TAO: smYjUbDBAMBZ35syU19eFKqyQY9fkKk3Eg4xA7uG4CMgAn2X4gUZophPfvUXoovx3BmKRsBm5mXXXbzusmg5Ce3a2YnRU3NreoGgTB Donate ETH: 0x522bDE6Fe303FC41228Ec8A5B90c0f3C5c375f8e Donate BCH: 1NjxRzBbPwxz6o1RAipdwXwr1HenB2ozWT Donate Bitcoin: 1DUnykT4bKGTLtjNUN2WTqK33NaxBUtxiY SUBSCRIBE! http://youtube.com/subscription_center?add_user=Payusnomind Connect with Payusnomind: http://facebook.com/payusnomind http://twitter.com/payusnomind Donate to Payusnomind: https://goo.gl/dMTUaB
Views: 742 Pay Us No Mind
Security In bada Applications [Part 2] (English)
In the second part of our introduction to bada's powerful set of security classes, we take a look at digital signatures and hashes. Digital signatures are used to verify the sender of a message, while hashes are used to check if a message has been tampered with. In this video explain the important classes which implement signatures and hashes in bada and walk you through code which shows you how to use these security features.
Views: 2661 badadevelopers