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What are certificates?
 
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Certificates are used to prove identity and used for creating secure communication. Check out http://itfreetraining.com for more of our always free training videos. This video looks at how a certificate works, what is a certificate and how they are used for identification and secure communication. Download the PDF handout http://itfreetraining.com/Handouts/Certificates/WhatAreCertificates.pdf What is a certificate? A certificate is an electronic document that contains data fields. When compared to a traditional paper certificate there are some similarities between an electronic certificate and a physical certificate. Digital certificates like a physical certificate are issued by an authority. For example, a university may issue a certificate to a student to show that they have completed the necessary work in order to graduate. The next question is, would you trust a physically certificate? Digital certificates work the same way. They are issued from an authority and the question becomes would you trust the authority that issued the certificate? Electronic certificates also contain other fields like who or what the certificate was issued to, how long it is valid, the public key and the digital signature. If a digital certificate is presented to a user or computer, the user or computer is able to check the certificate to ensure the person using it should be using it. Also the certificate contains a digital signature which allows the certificate to be checked to make sure it has not been modified. Digital Signature A digital signature provides a method for a certificate to be checked to ensure it has not been modified. In order to do this, a hash value is created for the certificate. To generate a hash value the certificate is put through a function to create a single value. Hash functions are designed so different certificates will not produce the same value, however the hash value cannot be used to generate the original certificate. The same principal applies to a person's fingerprints. They can be used to identify a person, however using a finger print you could not work out the features of a person like what color hair they have. When a certificate is created, the hash value for that certificate is also created. Using a function involving the private key, a digital signature is created and added to the certificate. Digital Signature Example When a certificate is used, in order to check the certificate has not been changed, the following is done: The computer generates the hash value for the certificate. Next, the digital signature is put through a function using the public key which should result in the same hash value. If both values match, the certificate has not been modified. This prevents a 3rd party taking a certificate, changing the values in the certificate and using the certificate. Trust Model Certificates work off a trust model. An example of a trust model in computers is that a computer may have a sticker on it indicating which operating systems it will run. The consumer, seeing this sticker, must trust that the manufacture would not put this sticker on the laptop unless it will run that operating system. The customer must also trust the creator of that operating system would not allow a computer manufacturer to put a sticker on a computer that would not run that operating system. Certificate Trust Model Certificates are generally deployed in a hierarchy. At the top is the root certificate authority. This can be an internal Certificate Authority or an external authority like VeriSign. When an authority like VeriSign issues a certificate, they will perform a number of checks on the individual purchasing the certificate to ensure that they are a valid business. When a certificate is used it can be checked to see which authority issued that certificate. In order for the certificate to be used, the computer must trust the authority that it was issued from. Authorities like VeriSign are trusted by default on most operating systems. Certificate Error If a certificate is presented to the computer and it is not trusted, the computer will generate an error asking if the users want to trust the certificate. It is up to the user to decide if they believe the certificate is valid. Certificate Hierarchy Certificates use a hierarchy. At the top is the root CA, below these are subordinate CA's. Any level can issue certificates to subordinate CA's or direct to users, computers or devices. If the user, computer or device trusts the root CA, then any certificate that is issued by any CA in the hierarchy will automatically be trusted and thus used by the client. References "MCTS 70-640 Configuring Windows Server 2008 Active Directory Second edition" pg 771-775 "Public key certificate" http://en.wikipedia.org/wiki/Public_key_certificate
Views: 395694 itfreetraining
:3rd BIU Winter School on Cryptography: Anonymous Credentials and eCash - Anna Lysyanskaya
 
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The 3rd Bar-Ilan Winter School on Cryptography: Bilinear Pairings in Cryptography, which was held between February 4th - 7th, 2013. The event's program: http://crypto.biu.ac.il/winterschool2013/schedule2013.pdf For All 2013 Winter school Lectures: http://www.youtube.com/playlist?list=PLXF_IJaFk-9C4p3b2tK7H9a9axOm3EtjA&feature=mh_lolz Dept. of Computer Science: http://www.cs.biu.ac.il/ Bar-Ilan University: http://www1.biu.ac.il/indexE.php
Views: 1000 barilanuniversity
5 of the Worst Computer Viruses Ever
 
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Michael Aranda explains five of the worst computer viruses that have hit the net! Hosted by: Michael Aranda ---------- 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 Justin Ove, Andreas Heydeck, Justin Lentz, Will and Sonja Marple, Benny, Chris Peters, Tim Curwick, Philippe von Bergen, Patrick, Fatima Iqbal, Lucy McGlasson, Mark Terrio-Cameron, Accalia Elementia, Kathy & Tim Philip, charles george, Kevin Bealer, Thomas J., and Patrick D. Ashmore. ---------- 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: Melissa: http://www.networkworld.com/article/2235008/data-center/melissa-virus-turning-10------age-of-the-stripper-unknown-.html https://www.sans.org/security-resources/idfaq/what-was-the-melissa-virus-and-what-can-we-learn-from-it/5/3 http://www.pandasecurity.com/mediacenter/malware/most-famous-virus-history-melissa/ https://www.f-secure.com/v-descs/melissa.shtml http://www.cnn.com/TECH/computing/9904/02/melissa.arrest.03/index.html?eref=yahoo http://www.nytimes.com/2002/05/02/nyregion/creator-of-melissa-virus-gets-20-months-in-jail.html ILOVEYOU: http://www.pcmag.com/article2/0,2817,2363172,00.asp http://www.bbc.com/news/10095957 http://money.cnn.com/2000/05/05/technology/loveyou/ http://motherboard.vice.com/read/love-bug-the-virus-that-hit-50-million-people-turns-15 Slammer: http://www.wired.com/2003/07/slammer/ https://www.f-secure.com/v-descs/mssqlm.shtml http://www.icsi.berkeley.edu/pubs/networking/insidetheslammerworm03.pdf Storm Worm: https://www.symantec.com/security_response/writeup.jsp?docid=2001-060615-1534-99&tabid=2 http://www.informationweek.com/storm-worm-erupts-into-worst-virus-attack-in-2-years/d/d-id/1057418 http://krebsonsecurity.com/2010/04/infamous-storm-worm-stages-a-comeback/ https://www.schneier.com/blog/archives/2007/10/the_storm_worm.html Mebroot/Torpig: https://seclab.cs.ucsb.edu/media/uploads/papers/torpig.pdf https://www.symantec.com/content/en/us/enterprise/media/security_response/whitepapers/your_computer_is_now_stoned.pdf https://www.secureworks.com/research/top-banking-botnets-of-2013 http://news.bbc.co.uk/2/hi/technology/7701227.stm https://css.csail.mit.edu/6.858/2009/readings/torpig.pdf Images: Servers: https://commons.wikimedia.org/wiki/File:Wikimedia_Servers-0051_18.jpg
Views: 4443656 SciShow
The Host Identity Protocol
 
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The Host Identity Protocol is an open standard that fixes the broken trust model of current IP networking, by introducing cryptographic identities and a new secure namespace. HIP was first proposed by Bob Moskowitz in 1999 as a way to solve the fundamental flaw in TCP/IP networking: using an IP address for both location and identity of a host or service on the network. Ratified by the Internet Engineering Task Force (IETF), HIP delivers an improved IP architecture with authentication, authorization, and IP mobility based on cryptographic identities. http://temperednetworks.com/idn-overview/ip-complexity-is-costly A primer on Host Identity Protocol by Dr. Andrei Gurtov: http://temperednetworks.com/sites/default/files/pdfs/whitepapers/Host-Identity-Protocol-Andrei-Gurtov.pdf
Views: 379 Tempered Networks
Bitcoin's Mysterious Creator Exposed by Writing Analysis?
 
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If you enjoyed the video, make sure to post it on REDDIT xKey Project: www.svilen.me/xkey Sources: Atheist blogger who spoke out against radical Islam hacked to death in Bangladesh http://www.nydailynews.com/news/national/atheist-blogger-hacked-death-bangladesh-article-1.2592051 Saudi high court upholds prison term, 1,000 lashes http://www.cnn.com/2015/06/08/middleeast/saudi-blogger-flogging-sentence-upheld/index.html Lorenzo Valla's stylometric investigation of Donation of Constantine https://en.wikipedia.org/wiki/Donation_of_Constantine#Investigation William Shakespeare's lost 18th Century play Double Falsehood 'not a hoax' http://www.telegraph.co.uk/culture/culturenews/7450874/Shakespeare-18th-Century-work-Double-Falsehood-is-his-lost-play.html Bitcoin whitepaper stylometric analysis suggesting Nick Szabo is author https://likeinamirror.wordpress.com/2013/12/01/satoshi-nakamoto-is-probably-nick-szabo/ Demo of IBM Watson's Personality Insights https://personality-insights-livedemo.mybluemix.net/ Stony Brook University predicts novel's commercial success with 84% accuracy http://aclweb.org/anthology/D/D13/D13-1181.pdf
Views: 3240 Disruption Theory
Conversations with History: Jan Assmann
 
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(Visit: http://www.uctv.tv/) Conversations host Harry Kreisler welcomes Jan Assmann, Honorary Professor of Cultural and Religious Studies at the University of Constance, for a discussion of his career as a Egyptologist and scholar of comparative religions. After reflections on his formative years in a German medieval town suffering from the ravages of World War II and its aftermath, Assmann describes the community of Egyptologists and the intellectual influences that shaped his scholarship. He also characterizes the intellectual joys and hardships of field research in ancient tombs. Finally, he touches on some of the themes of his scholarship including the evolution of ideas that characterize religious change; comparison of Moses and Akhenaten; and the importance of writing, canonization, and exegesis to cultural memory and the resilience and survival of religions. Recorded on 10/09/2015. Series: "Conversations with History" [Humanities] [Show ID: 30173]
The Third Industrial Revolution: A Radical New Sharing Economy
 
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The global economy is in crisis. The exponential exhaustion of natural resources, declining productivity, slow growth, rising unemployment, and steep inequality, forces us to rethink our economic models. Where do we go from here? In this feature-length documentary, social and economic theorist Jeremy Rifkin lays out a road map to usher in a new economic system. A Third Industrial Revolution is unfolding with the convergence of three pivotal technologies: an ultra-fast 5G communication internet, a renewable energy internet, and a driverless mobility internet, all connected to the Internet of Things embedded across society and the environment. This 21st century smart digital infrastructure is giving rise to a radical new sharing economy that is transforming the way we manage, power and move economic life. But with climate change now ravaging the planet, it needs to happen fast. Change of this magnitude requires political will and a profound ideological shift. To learn more visit: https://impact.vice.com/thethirdindustrialrevolution Click here to subscribe to VICE: http://bit.ly/Subscribe-to-VICE Check out our full video catalog: http://bit.ly/VICE-Videos Videos, daily editorial and more: http://vice.com More videos from the VICE network: https://www.fb.com/vicevideo Click here to get the best of VICE daily: http://bit.ly/1SquZ6v Like VICE on Facebook: http://fb.com/vice Follow VICE on Twitter: http://twitter.com/vice Follow us on Instagram: http://instagram.com/vice Download VICE on iOS: http://apple.co/28Vgmqz Download VICE on Android: http://bit.ly/28S8Et0
Views: 2888838 VICE
Create a Free Digital Signature for Signing PDFs
 
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Easily create and use a free digital signature for signing your PDF documents. See more at www.leadgen.com
Views: 272997 SSMSolutions
What is The History of Bitcoin: Super Easy Explanation
 
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What is The History of Bitcoin: Super Easy Explanation - https://blockgeeks.com/ We’ll start at the very beginning by understanding the history of blockchain. The very first blockchain in the world was Bitcoin. An anonymous person or group known as Satoshi Nakamoto published a document in an online cryptography forum in November 2008 and revealed the first details of how it would work, describing it as a “peer-to-peer electronic cash system”. The whitepaper is available today at bitcoin.org/bitcoin.pdf. It allows any 2 people to pseudonymously send money to each other no matter where they are in the world. It is a borderless currency. The main benefit of Bitcoin is that it does not require any centralized authority or institution to operate. This is in contrast to today’s centralized financial systems that depend on the existence of a central bank or government to mint money. If for any reason the central authority were to shutdown, the money would become worthless. In a decentralized system like Bitcoin, there is no central authority and the system can continue to operate as long as there are members in its peer-to-peer network. The goal of the whitepaper was to describe how the different parts of the Bitcoin protocol would operate and be kept secure. A new type of database, called a blockchain, would keep track of a single history of all Bitcoin transactions and it would be maintained by everyone in the network. The database would be publicly available for anyone to view and inspect, and anyone can download a copy of the same database. This provides data redundancy and makes sure the data is never lost, but also provides a way for anyone to verify the transactions in the database themselves. A block in the database just stores a sequence of transactions, and a sequence of blocks is called a blockchain. Each block is identified by an incrementing number and a unique Sha-256 hash. The hash for a block is calculated using the transactions inside it, as well as the previous block’s hash, which forms a chain of hashes. The data in the blocks is secured using a cryptographic algorithm called proof-of-work, which also keeps all members of the network and the database in sync to prevent double-spending. In this context, preventing double-spending means preventing anyone from spending money they dont have. Proof-of-work is used to generate new blocks for the database, also known as mining, and the reward for mining a new block is given to the miner by creating new Bitcoins in the system. This is the only way new Bitcoins can be created. Anyone on the network can be a miner and a new block is mined roughly every 10 minutes, which includes the latest set of verified transactions. The first release for Bitcoin was version 0.1 written in C++ by Satoshi and published on SourceForge in January 2009 under the open-source MIT license. Anyone could download the source code and run it to join the network, also known as becoming a node in the network. This is the original version 0.1 source code written by Satoshi. We can see the hard-coded genesis block, which is the very first block in the chain. The hash for the block can be verified by using any Bitcoin blockchain explorer. Let’s copy and paste this hash into the blockchain explorer available at blockchain.info. We can see that this hash is for block number 0, and that it has only one transaction in it which is the mining reward, and the reward amount of 50 Bitcoin was given to this Bitcoin address. We can also see this 50 Bitcoin reward for the genesis block in the original source code. The genesis block is a special case needed to start the blockchain and is the only block that is hard-coded, whereas every subsequent block is calculated using proof-of-work. Satoshi’s motivation for creating Bitcoin is revealed in the piece of data he included in the genesis block: a newspaper headline from The Times that read ‘Chancellor on brink of second bailout for banks’. The date of the newspaper is proof that the genesis block was created on or after Jan 3 2009. Satoshi developed the source code mostly himself up until mid-2010, when he handed it off to the open-source community. It is now maintained under the project called Bitcoin Core. The software is currently at version 0.15.1 and is available for download at bitcoin.org. This is still the most popular Bitcoin client, and its estimated that there are over 10 thousand nodes running the Bitcoin network today using various clients. Satoshi disappeared from public view in late 2010, his identity still unknown to this day. The only way someone could prove that they are Satoshi is by using the same encryption keys used when posting the original whitepaper in the online cryptography forum. To read more check out https://blockgeeks.com/
Views: 6637 Blockgeeks
The Anonymisation Problem - Computerphile
 
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Keeping data anonymous seems easy, but keeping identities separate is a big problem. Professor Derek McAuley explains. EXTRA BITS: https://youtu.be/4D6OO9zyAuc 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: 62512 Computerphile
What Is The Use Of Digital Signature?
 
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Reasons digital signatures are so important for e signingwhat is a signature? Jscape. Digital signature? Definition from whatis what is digital signature and how it works? . You can use them to comply with the most demanding legal and regulatory this document describes how digital signatures are represented in a pdf be used for many types of documents where signature attached an email message offers another layer but digitally signed come only from owner id. Digital signatures use a standard, digital can be used to authenticate the source of messages. Guidelines for usage of digital signatures in e governance(december 2010)ministry communications dec 17, 2009 are a way to verify that an email message is really from the private key portion you use most advanced and secure type electronic signature. Frequently asked questions about digital signatures wa secretary what is a signature? Digital why and how you should use them bestvpn. Secure messages by using a digital signature outlook. Digital signature? Definition from whatis. What is digital signature and how it works? signature? Definition from whatis. Application of digital signature docusigndocusignwhat is a signature? Technet microsoft. Googleusercontent search. You select the signature option, then learn about digital signatures and other authentication methods. Digistamp digital signatures why and how? . The importance of high confidence in sender authenticity is especially obvious a financial context may 9, 2008 digital signature used to help authenticate the identity creator information such as documents, e mail messages, and why use what needed create one? Frequently asked questions about signatures, private public keys it's simple process vary slightly software you use, but your does all work. When ownership of a digital signature secret key is bound to specific user, valid shows that the message was sent by user. Html url? Q webcache. What is a digital signature, how it worksdigital signatures in pdf adobe. For specific information regarding digital signatures, please click here. Guidelines for usage of digital signatures in e governance v1. Password the use of a user name and password provide most common form mar 13, 2015 while ago we discussed cryptographic hashes (such as md5 sh1 checksums), how they help ensure that file you download is dec 26, 2014 digital signatures are among component an e signature program confusion because terms often used interchangeably trusted allow to keep your entire workflow online easy use, cost effective way add documents 28, nice introduction they're in secure transfers nov 20, 2013. Use a digital in the form of coded message, signature securely associates signer with document recorded transaction. Definition
Views: 6 Hadassah Hartman
After Effects Project Files -  Infographics
 
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You can buy this from http://videohive.net/item/infographics/3925887?sso?WT.ac=portfolio_item&WT.seg_1=portfolio_item&WT.z_author=keybal&ref=koukoulis_fotis AfterFX Template "Infographics" AfterFX version: CS4, CS5, CS5.5. CS6 Resolution: 1920×1080 30 fps 10 infographic elements No plugin required Color changing option 3 projects with different color schemes ReadMe PDF included
Views: 183 Yorick Brown
Implementing SSL in asp net web application   Part 101
 
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Text version of the video http://csharp-video-tutorials.blogspot.com/2012/12/implementing-ssl-in-aspnet-web.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-101-implementing-ssl.html All ASP .NET Text Articles http://csharp-video-tutorials.blogspot.com/p/free-aspnet-video-tutorial.html All ASP .NET Slides http://csharp-video-tutorials.blogspot.com/p/aspnet-slides.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists In this video we will discuss about 1. Understand the term self-signed certificates 2. Creating self-signed certificates 3. Configuring an asp.net web application to use SSL, that is use HTTPS instead of HTTP 4. Importing and exporting certificates What are self signed certificates A self-signed certificate is an identity certificate that is signed by its own creator. Certificates are signed by Certificate Authority. In general self signed certificates are fine for testing purposes and not for production use. Creating self-signed certificates There are several ways to create self signed test certificates. Let us explore 2 of the easier options available. The easiest and simpler approach is to use IIS to create these certificates. In IIS 7.5 1. Click on the "Server Name" 2. Double click "Server Certificates" feature 3. Click on "Create Self Signed Certificate" link, under "Actions" 4. Specify a friendly name for the certificate and click OK. The friendly name is not part of the certificate itself, but is used by the server administrator to easily distinguish the certificate. The generated test certificate, is also automatically installed into the certificate store. MakeCert.exe tool can be used as another way to generate, test certificates. The following link from microsoft explains, various options that can be used with this tool. This is a command line tool and must be run from visual studio command prompt. http://msdn.microsoft.com/en-us/library/bfsktky3.aspx Makecert -r -pe -n "CN=YourComputerName" -b 01/01/2000 -e 01/01/2100 -ss my -sr localMachine -sky exchange -sp "Microsoft RSA SChannel Cryptographic Provider" -sy 12 Note: Replace YourComputerName, with the name of your computer. Associating an asp.net web application with a specific certificate Add HTTPS site binding, if it is not already present 1. Open IIS 2. Expand the "Server Name" 3. Expand "Sites" 4. Select "Default Web Site" 5. Click "Binding" under "Edit Site" in "Actions" pane. 6. In the "Site Bindings" window, Click "Add" 7. Select Type = "https" and the SSL Certificate and click "OK" 8. Click "Close" on "Site Bindings" window At this point, you will be able to access your application using both HTTP and HTTPS protocol. When the site is accessed over HTTPS, you may receive a browser warning about the authenticity of the website. In a later video session we will discuss about resolving this. If you want to dis-allow, access over HTTP protocol there are 2 ways First Way: Remove HTTP binding at the IIS Server level. This option will prevent all the web applications, running on that server to use only HTTPS binding. Second Way: Let both the bindings be available at the server level and configure SSL settings at an application or web site level. 1. Select your web application in IIS 2. Double click "SSL Settings" from the features window 3. Make sure "Require SSL" checkbox is checked. 4. Click "Apply" under "Actions" pane Now, if you try to access the application using HTTP instead of HTTPS, you will get an error HTTP Error 403.4 - Forbidden The page you are trying to access is secured with Secure Sockets Layer (SSL) Use Import and Export feature of IIS to import and export certificates
Views: 72526 kudvenkat
Looking Over the 'Blind Signatures For Untraceable Payments' Paper
 
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In this episode, we look into the research paper David Chaum, an American computer scientist wrote in the 80's at The University Of California which was the first paper which would start the revolution which is cryptocurrencies. As promised, here's the link to the David Chaum research paper I mentioned in the video: http://www.hit.bme.hu/~buttyan/courses/BMEVIHIM219/2009/Chaum.BlindSigForPayment.1982.PDF And here is the paper describing Bitcoin from Satoshi Nakamoto: https://bitcoin.org/bitcoin.pdf ------------------------------------------------------------------- If you're looking to get serious about digital currency mining however are looking for a small investment, I'd suggest going with this: Small Bitcoin miner: http://amzn.to/2wCPffB If you're looking for a hardcore miner, here's the Antminer s9: Antminer s9: http://amzn.to/2vkCsP4 ------------------------------------------------------------------- Here are the links to the 4 currency mining software I am going to try out: MinerGate: https://minergate.com/a/fc9f27c3b8d282ba51261217 Ethereum Miner: https://ethereumpool.co/how/ NiceHash: https://github.com/nicehash/NiceHashMiner/releases/ MinePeon: https://sourceforge.net/projects/minepeon/ If you know of any other currency miners let me know in the comments below, I will also be looking for other software down the line. ------------------------------------------------------------------- Check out our social media links: Instagram: https://www.instagram.com/Mindset_hub/ Medium: https://medium.com/@mindset_hub Facebook: https://www.facebook.com/MillionaireMindsetHub/ Twitter: https://twitter.com/Mindset_Hub YouTube: https://www.youtube.com/channel/UCG2wMLxc3KGzXUvlGuuxQUw SoundCloud: https://soundcloud.com/user-712725793/tracks And Tumblr: https://mindset-hub.tumblr.com
Darknet: So funktioniert die mysteriöse Parallelwelt des Internets - Clixoom Science & Fiction
 
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Das “Darknet” ist quasi die Parallelwelt des Internets, in der man anonym und unerkannt surfen kann Tor Browser: https://www.torproject.org/projects/torbrowser.html.en Skript: Christine Kirchhoff Schnitt: Christian Beller https://www.youtube.com/channel/UCOfMoCMDRAQRVC8AJSvI0EA Quelle: https://www.tandfonline.com/doi/pdf/10.1080/00396338.2016.1142085 http://www.chip.de/artikel/Darknet-So-funktioniert-der-Zugang-ins-Deep-Web_63227067.html https://www.gruenderszene.de/allgemein/darknet-selbstversuch-recherche http://www.fluter.de/im-zeichen-der-zwiebel http://www.faz.net/aktuell/gesellschaft/kriminalitaet/chaos-computer-club-sieht-mehr-vor-als-nachteile-im-darknet-14359226.html https://www.bpb.de/dialog/netzdebatte/242957/das-darknet-ein-paradies-fuer-kriminelle http://www.businessinsider.com/silk-road-revenue-2013-10?IR=T Clixoom Science & Fiction: Das sind spannende News aus der Wissenschaft über revolutionäre Forschungsergebnisse, spannende Studien und spektakuläre Eindeckungen. Du willst uns unterstützen? Dann erstell dir über unseren Link einen Probeaccount bei Audible und sicher dir ein kostenloses Hörbuch als Willkommensgeschenk: http://www.clixoom.de/Audible Wir verwenden sogenannte "Affiliate-Links". Wenn ihr über diese Links ein Produkt kauft, werden wir mit einer Provision beteiligt. Für euch entstehen dabei natürlich keine Mehrkosten! Produktion: United Creators PMB GmbH, Sanderstrasse 29-30, 12047 Belirn Impressum: https://www.unitedcreators.net/impressum Unser Equipment: http://amzn.to/2yZZH1r Panasonic LUMIX G DMC-GX8EG-K http://amzn.to/2iIMT9C Panasonic Lumix G X Vario Standardzoom 12-35mm F2,8 http://amzn.to/2z2oVMn Panasonic H-X015E LEICA DG SUMMILUX 15 mm F1.7 http://amzn.to/2zOe1r2 Samyang 7.5mm F3.5 UMC Fisheye
From Bitcoin To Hashgraph (Documentary) Hidden Secrets Of Money Episode 8
 
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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)
Steemit - Where Does The Money Come From? Explained
 
15:43
Steemit - Where Does The Money Come From Explained? https://steemit.com/@mykos Steemit is a social news service[2] which runs a blogging and social networking website on top of a blockchain database, known as Steem. The project was founded in 2016 by Ned Scott and Dan Larimer, creator of BitShares.[3][4] The two are founders of the Steemit Inc. company which runs the Steemit website and funds ongoing development of the platform. On March 15, 2017 Dan Larimer announced his resignation from the company.[5] The idea was described in a whitepaper released in March 2016.[6] The general concept is similar to other blogging websites or social news websites like Reddit, but the text content is saved in a blockchain. Using a blockchain enables rewarding comments and posts with secure tokens of value. Images can be uploaded and hosted on Steemit. Other multimedia content must be embedded from other web hosts. For formatting, there is a WYSIWYG editor. Users can also opt to use Markdown formatting with HTML elements. User accounts can upvote posts and comments, and the authors who get upvoted can receive a monetary reward in a cryptocurrency token named STEEM and US dollar-pegged tokens called Steem Dollars. People are also rewarded for curating popular content. Curating involves voting comments and post submissions. Vote strength and curation rewards are influenced by the amount of STEEM Power held by the voter.[4] Steemit has a reputation system, where new accounts start with a reputation of 25. An account's received votes can influence its reputation up and down, incentivizing online etiquette. Steemit runs on top of a decentralized network named Steem. Like Bitcoin, Steem is a blockchain with transferable tokens. In addition to moving tokens from one place to another, Steem is also a text content and metadata database that applications or websites can connect to. Through these apps, Steem accounts can transact and interact with the Steem database. Instead of using cryptographic hashes as addresses like many blockchains do, user-chosen alphanumeric account names are used. With human readable account names, transactions can be made directly from an identity to an identity, making them easier to understand than hashes. Steem also reaches decentralized consensus differently than Bitcoin. It uses a method called delegated proof of stake where block-creating accounts, called witnesses, are elected by Steem stakeholders. Instead of relying on proof of work to find blocks, the Steem network actively schedules these accounts to improve the time between blocks to 3 seconds. Block producers are given a small part of the rewards created in each block; the rest is paid to authors and curators. Steem has no transaction fees for rate limiting or to pay its block producers. Instead, accounts use bandwidth, which replenishes fast enough that a typical user is not affected or limited. While steemit.com is the first and reference front-end website interface for the blockchain content of Steem, the network's open and permissionless nature allows third-party websites and apps to connect and interact with the Steem database. Several have been created by third parties. These offer alternative interface designs or features such as Instagram-style image posting. Busy.org is a Steem-interacting website with an alternative user interface. eSteem is a Steem-interacting Android and iOS app. A forum-style application called chainBB is also available. Non-Steemit apps and websites use the same Steem user credentials as used on Steemit. This is possible because the user account and password are part of the network database, using public-key cryptography. Only the user who owns an account can authenticate actions such as commenting, voting, or transferring with their password or appropriate key. Each account has a set of private keys with different access privileges. The lowest security level key allows posting, commenting and voting, but not transfers of currency. Therefore with a hierarchy of keys, it is possible to use other Steem-connected apps without risking a loss of funds or account control. ] As of May 2017, there are more than 170,000 Steem accounts. After an initial public beta for which no payments were made, the hard fork on July 4th, 2016 saw $1,300,000 of STEEM and Steem Dollars paid out to Steemit users.[8] The exchange rate of STEEM compared to Bitcoin rose continuously during July 2016, peaking at a price of over 4 US dollars.[4] In most of July 2016, Steem had the third largest market capitalization of all cryptocurrencies monitored by the website Coinmarketcap.com, reaching a first notable peak at July 20th, with about 405 million US dollars.[9] As of May 25th, 2016 its market cap is 258 million United States dollars. https://steem.io/SteemWhitePaper.pdf
William Mougayar: "Blockchains: Past, Present and Future" | Talks at Google
 
56:03
The Business Blockchain charts new territory in advancing our understanding of the blockchain by unpacking its elements like no other before. William Mougayar anticipates a future that consists of thousands, if not millions of blockchains that will enable not only frictionless value exchange, but also a new flow of value, redefining roles, relationships, power and governance. In this book, Mougayar makes two other strategic assertions. First, the blockchain has polymorphic characteristics; its application will result in a multiplicity of effects. Second, we shouldn’t ask ourselves what problems the blockchain solves, because that gives us a narrow view on its potential. Rather, we should imagine new opportunities, and tackle even more ambitious problems that cross organizational, regulatory and mental boundaries. Drawing on 34 years of technology industry experience as an executive, analyst, consultant, entrepreneur, startup mentor, author, blogger, educator, thought leader and investor, William Mougayar describes a future that is influenced by fundamental shifts brought by blockchain technology as the catalyst for change. William Mougayar has been described as the most sophisticated blockchain business thinker. He is a blockchain industry insider whose work has already shaped and influenced the understanding of blockchain for people around the world, via his generous blogging and rigorous research insights. He is a direct participant in the crypto-technology market, working alongside startups, entrepreneurs, pioneers, leaders, innovators, creators, enterprise executives and practitioners; in addition to being an investor, advisor, and board member in some of the leading organizations in this space, such as the Ethereum Foundation, OpenBazaar and Coin Center.
Views: 34101 Talks at Google
DEF CON 15 - Zed Shaw - Saving the Internet with Hate
 
44:52
Zed A. Shaw: Saving The Internet With Hate Utu is the Maori word for a system of revenge used by Maori society to provide social controls and retribution. Utu is also a protocol that uses cryptographic models of social interaction to allow peers to vote on their dislike of other peer's behavior. The goal of Utu is to experiment with the effects of bringing identity, reputation, and retribution to human communications on the Internet. A secondary goal is wiping out IRC because apparently nobody really likes IRC. This presentation will cover the protocol's design, use of cryptography, secure coding practices, and an analysis of it's adoption and current research results. The presentation is for medium to advanced participants interested in similar open source projects. In the spirit of openness and collaboration and just plain evil, there will be an Utu server running for conference participants to use during the conference. The goal is to present the system, get people thinking, and obtain feedback on the design and implementation."Zed A. Shaw is the author of a Ruby web server named Mongrel and a frequent speaker at conferences and user groups around the US. He's currently working as a software developer and tinkers on open source projects in his spare time.
Views: 2860 DEFCONConference
Free RSA Aveksa (RSA VIA) online Training on How to Create Rules
 
31:20
FREE RSA Aveksa online Training on How to Create Rules. RSA VIA Training Videos. Please Like if you liked the video. Details of the RSA Aveksa Online training we offer are here http://itjobzone.biz/RSA-VIA-training.html
Views: 1029 ITJobZone Training
Jamie Bartlett: "The Dark Net" | Talks at Google
 
56:46
Jamie Bartlett came to Google London to talk about his book 'The Dark Net' with Anthony House and our Googlers. You can follow Jamie on Twitter at https://twitter.com/JamieJBartlett and find out more about his book on Google Books: http://goo.gl/Av9jbO Beyond the familiar online world that most of us inhabit - a world of Google, Hotmail, Facebook and Amazon - lies a vast and often hidden network of sites, communities and cultures where freedom is pushed to its limits, and where people can be anyone, or do anything, they want. A world that is as creative and complex as it is dangerous and disturbing. A world that is much closer than you think. The dark net is an underworld that stretches from popular social media sites to the most secretive corners of the encrypted web. It is a world that frequently appears in newspaper headlines, but one that is little understood, and rarely explored. The Dark Net is a revelatory examination of the internet today, and of its most innovative and dangerous subcultures: trolls and pornographers, drug dealers and hackers, political extremists and computer scientists, Bitcoin programmers and self-harmers, libertarians and vigilantes. Based on extensive first-hand experience, exclusive interviews and shocking documentary evidence, The Dark Net offers a startling glimpse of human nature under the conditions of freedom and anonymity, and shines a light on an enigmatic and ever-changing world.
Views: 70004 Talks at Google
Kristov Atlas, pt2 : Anonymous Bitcoin, Cryptography and Online Safety - #204
 
01:30:54
This episode is part 2 about Bitcoin, cryptography and online security and safety and is called Anonymous Bitcoin, Cryptography and Online Safety: It's being released on Wednesday, July 2, 2014, and was recorded yesterday on Tuesday, July 1, 2014. Kristov Atlas is a network security and privacy researcher who studies crypto-currencies. He is the author of Anonymous Bitcoin: How to Keep Your Ƀ All to Yourself, a practical guide to maximizing financial privacy with Bitcoin. Kristov is also a correspondent for the World Crypto Network, appearing regularly on the the weekly roundtable show "The Bitcoin Group", and host of "Dark News", a show about un-censorship technologies. References to this episode: Anonymous Bitcoin book: http://anonymousbitcoinbook.com Dark News Show: https://twitter.com/darknewsshow Tor Project: https://www.torproject.org I2P Network: https://geti2p.net/en/ Dark Wallet: https://darkwallet.unsystem.net Dark Wallet in the News: https://www.indiegogo.com/projects/bitcoin-dark-wallet http://www.wired.com/2014/04/dark-wallet/ http://onpoint.wbur.org/2014/05/06/bitcoin-dark-money-dark-wallet Panopticlick: https://panopticlick.eff.org Blockchain.info: https://blockchain.info Taint Analysis: https://blockchain.info/taint/1dice6GV5Rz2iaifPvX7RMjfhaNPC8SXH Bitcoin Fog: http://www.bitcoinfog.com Tails Linux https://tails.boum.org Send Bitcoin donations for this episode to: 12EQTDMzU5mxtEd8ZfyrHrxABZi3jtaCCo Please make other forms of donations here: http://www.gnosticmedia.com/donate/
Views: 2890 LogosMedia
Daily from Japan ~ Best way to understand Bitcoin White Paper * Satoshi on BTC
 
07:20
Harrison Kinsley Break down of Bitcoin White Paper https://youtu.be/UieiMU-ImvI The original Bitcoin White Paper The original paper: bitcoin.org/bitcoin.pdf Sunny Decree (Rant) https://youtu.be/bGYn_1HtWQA My Favorite Content Creators on Youtube that keep me informed (and sometimes entertained) in Crypto. Andreas Antonopoulos Crypt0 Cryptoverse Boxmining Crypto Daily Doug Polk Ivan on Tech Node Investor Suppoman Crypto Lark Bitesize Bitcoin Crypto Bobby Coin Mastery Tone Vays Jimmy Song The Modern Investor Sunny Decree The Bitcoin Meister Sentdex Vortex DataDash
Views: 176 crypto Eri
Alex Tapscott: "Blockchain Revolution" | Talks at Google
 
56:39
Talks at Google in London were delighted to welcome Alex Tapscott to talk about his book Blockchain Revolution, looking at how the technology behind Bitcoin can reshape the world of business and transform the old order of human affairs for the better. Alex can be found on Twitter at: @alextapscott Book on Google Play - with free first chapter! https://play.google.com/store/books/details/Don_Tapscott_Blockchain_Revolution?id=bwz_CwAAQBAJ About the Book: The technology likely to have the greatest impact on the future of the world economy has arrived, and it's not self-driving cars, solar energy, or artificial intelligence. It’s called the blockchain. The first generation of the digital revolution brought us the Internet of information. The second generation powered by blockchain technology is bringing us the Internet of value: a new, distributed platform that can help us reshape the world of business and transform the old order of human affairs for the better. Blockchain is the ingeniously simple, revolutionary protocol that allows transactions to be simultaneously anonymous and secure by maintaining a tamperproof public ledger of value. Though it's the technology that drives bitcoin and other digital currencies, the underlying framework has the potential to go far beyond these and record virtually everything of value to humankind, from birth and death certificates to insurance claims and even votes. Why should you care? Maybe you're a music lover who wants artists to make a living off their art. And those examples are barely the tip of the iceberg. This technology is public, encrypted, and readily available for anyone to use. It's already seeing widespread adoption in a number of areas. For example, forty-two (and counting) of the world's biggest financial institutions, including Goldman Sachs, JPMorgan Chase, and Credit Suisse, have formed a consortium to investigate the blockchain for speedier and more secure transactions. As with major paradigm shifts that preceded it, the blockchain will create winners and losers. And while opportunities abound, the risks of disruption and dislocation must not be ignored. About the Author: Alex Tapscott is the CEO and Founder of Northwest Passage Ventures, an advisory firm building industry-leading blockchain businesses. Formerly, Alex was a senior executive at Canaccord Genuity, Canada’s largest independent investment bank. At age 25, he became the firm’s youngest-ever Vice President and in 2014, he founded the firm’s blockchain practice. Over his career, Alex has worked tirelessly for his clients, raising hundreds of millions of dollars in growth capital from a global institutional investor base, and provided sound advice and counsel.
Views: 183692 Talks at Google
Bitcoin White Paper Satoshi Nakamoto
 
20:49
Bitcoin: A Peer-to-Peer Electronic Cash System Satoshi Nakamoto [email protected] www.bitcoin.org Abstract. A purely peer-to-peer version of electronic cash would allow online payments to be sent directly from one party to another without going through a financial institution. Digital signatures provide part of the solution, but the main benefits are lost if a trusted third party is still required to prevent double-spending. We propose a solution to the double-spending problem using a peer-to-peer network. The network timestamps transactions by hashing them into an ongoing chain of hash-based proof-of-work, forming a record that cannot be changed without redoing the proof-of-work. The longest chain not only serves as proof of the sequence of events witnessed, but proof that it came from the largest pool of CPU power. As long as a majority of CPU power is controlled by nodes that are not cooperating to attack the network, they'll generate the longest chain and outpace attackers. The network itself requires minimal structure. Messages are broadcast on a best effort basis, and nodes can leave and rejoin the network at will, accepting the longest proof-of-work chain as proof of what happened while they were gone. 1. Introduction Commerce on the Internet has come to rely almost exclusively on financial institutions serving as trusted third parties to process electronic payments. While the system works well enough for most transactions, it still suffers from the inherent weaknesses of the trust based model. Completely non-reversible transactions are not really possible, since financial institutions cannot avoid mediating disputes. The cost of mediation increases transaction costs, limiting the minimum practical transaction size and cutting off the possibility for small casual transactions, and there is a broader cost in the loss of ability to make non-reversible payments for non- reversible services. With the possibility of reversal, the need for trust spreads. Merchants must be wary of their customers, hassling them for more information than they would otherwise need. A certain percentage of fraud is accepted as unavoidable. These costs and payment uncertainties can be avoided in person by using physical currency, but no mechanism exists to make payments over a communications channel without a trusted party. What is needed is an electronic payment system based on cryptographic proof instead of trust, allowing any two willing parties to transact directly with each other without the need for a trusted third party. Transactions that are computationally impractical to reverse would protect sellers from fraud, and routine escrow mechanisms could easily be implemented to protect buyers. In this paper, we propose a solution to the double-spending problem using a peer-to-peer distributed timestamp server to generate computational proof of the chronological order of transactions. The system is secure as long as honest nodes collectively control more CPU power than any cooperating group of attacker nodes.
Views: 4584 Bitcoin Bank
Revision-Controlled Journalism & the Dispersion of Interpretive Power
 
12:05
The theme of this year's Hackers Congress is "a new order." Today, I want to share ways that we can begin to improve journalism as a practice towards something that is more accountable, vigorously evidence-based, and allows for a dispersion of interpretive power. Although I was originally scheduled to give a talk for this year's Hackers Congress at Paralelní Polis (https://neworder.hcpp.cz/), I unfortunately decided not to attend in person. This is a recording of the talk I would have given. === LINKS === 1. 'The WikiLeaks Files': https://www.versobooks.com/books/2260-the-wikileaks-files 2. Revision-Controlled Journalism (V1): https://einzelgaengerinmotte.files.wordpress.com/2015/09/versionrevision-controlled-journalism1.pdf 3. Revision-Controlled Journalism (V2): https://einzelgaengerinmotte.files.wordpress.com/2018/02/revision-controlled_journalism_v2.pdf 4. Contact: https://einzelgaengerinmotte.wordpress.com/contact/ === SONG CREDITS === 1. "Ventura Node Module" by Bio Unit (CC-BY-NC): http://freemusicarchive.org/music/Bio_Unit/Content/Ventura_Node_Module 2. "Waiting for it to Happen" by Scanglobe (CC-BY-NC-SA): http://freemusicarchive.org/music/Scanglobe/Telegraph_1256/Waiting_for_it_to_Happen_1442
Views: 190 Block Digest
K Camp - Comfortable
 
03:56
K Camp’s debut album “Only Way Is Up” Available NOW iTunes Deluxe Explicit: http://smarturl.it/KCampOWIUdlxEX Google Play Standard Explicit: http://smarturl.it/KCampOWIUstdEXgp Google Play Standard Clean : http://smarturl.it/KCampOWIUstdEDgp Google Play Explicit Deluxe: http://smarturl.it/KCampOWIUdlxEXgp Google Play Clean Deluxe: http://smarturl.it/KCampOWIUdlxEDgp http://kcamp427.com http://twitter.com/twitter.com/kcamp427 http://facebook.com/kcamp427 http://instagram.com/kcamp427 http://vevo.ly/h1MhCH
Views: 61743126 KCampVEVO
Steemit- Curation /Rewards Explained
 
09:46
Steemit- Curation /Rewards Explained Get Free Cryptocurrency tokens here: https://mykosonai.wixsite.com/mykcorp https://steemit.com/@mykos Steemit is a social news service[2] which runs a blogging and social networking website on top of a blockchain database, known as Steem. The project was founded in 2016 by Ned Scott and Dan Larimer, creator of BitShares.[3][4] The two are founders of the Steemit Inc. company which runs the Steemit website and funds ongoing development of the platform. On March 15, 2017 Dan Larimer announced his resignation from the company.[5] The idea was described in a whitepaper released in March 2016.[6] The general concept is similar to other blogging websites or social news websites like Reddit, but the text content is saved in a blockchain. Using a blockchain enables rewarding comments and posts with secure tokens of value. Images can be uploaded and hosted on Steemit. Other multimedia content must be embedded from other web hosts. For formatting, there is a WYSIWYG editor. Users can also opt to use Markdown formatting with HTML elements. User accounts can upvote posts and comments, and the authors who get upvoted can receive a monetary reward in a cryptocurrency token named STEEM and US dollar-pegged tokens called Steem Dollars. People are also rewarded for curating popular content. Curating involves voting comments and post submissions. Vote strength and curation rewards are influenced by the amount of STEEM Power held by the voter.[4] Steemit has a reputation system, where new accounts start with a reputation of 25. An account's received votes can influence its reputation up and down, incentivizing online etiquette. Steemit runs on top of a decentralized network named Steem. Like Bitcoin, Steem is a blockchain with transferable tokens. In addition to moving tokens from one place to another, Steem is also a text content and metadata database that applications or websites can connect to. Through these apps, Steem accounts can transact and interact with the Steem database. Instead of using cryptographic hashes as addresses like many blockchains do, user-chosen alphanumeric account names are used. With human readable account names, transactions can be made directly from an identity to an identity, making them easier to understand than hashes. Steem also reaches decentralized consensus differently than Bitcoin. It uses a method called delegated proof of stake where block-creating accounts, called witnesses, are elected by Steem stakeholders. Instead of relying on proof of work to find blocks, the Steem network actively schedules these accounts to improve the time between blocks to 3 seconds. Block producers are given a small part of the rewards created in each block; the rest is paid to authors and curators. Steem has no transaction fees for rate limiting or to pay its block producers. Instead, accounts use bandwidth, which replenishes fast enough that a typical user is not affected or limited. While steemit.com is the first and reference front-end website interface for the blockchain content of Steem, the network's open and permissionless nature allows third-party websites and apps to connect and interact with the Steem database. Several have been created by third parties. These offer alternative interface designs or features such as Instagram-style image posting. Busy.org is a Steem-interacting website with an alternative user interface. eSteem is a Steem-interacting Android and iOS app. A forum-style application called chainBB is also available. Non-Steemit apps and websites use the same Steem user credentials as used on Steemit. This is possible because the user account and password are part of the network database, using public-key cryptography. Only the user who owns an account can authenticate actions such as commenting, voting, or transferring with their password or appropriate key. Each account has a set of private keys with different access privileges. The lowest security level key allows posting, commenting and voting, but not transfers of currency. Therefore with a hierarchy of keys, it is possible to use other Steem-connected apps without risking a loss of funds or account control. ] As of May 2017, there are more than 170,000 Steem accounts. After an initial public beta for which no payments were made, the hard fork on July 4th, 2016 saw $1,300,000 of STEEM and Steem Dollars paid out to Steemit users.[8] The exchange rate of STEEM compared to Bitcoin rose continuously during July 2016, peaking at a price of over 4 US dollars.[4] In most of July 2016, Steem had the third largest market capitalization of all cryptocurrencies monitored by the website Coinmarketcap.com, reaching a first notable peak at July 20th, with about 405 million US dollars.[9] As of May 25th, 2016 its market cap is 258 million United States dollars. https://steem.io/SteemWhitePaper.pdf
DEF CON 21 - Dr Tom Keenan - Torturing Open Government Systems for Fun
 
31:53
Torturing Open Government Systems for Fun, Profit and Time Travel TOM KEENAN PROFESSOR, UNIVERSITY OF CALGARY "I'm from the government and I'm here to help you" takes on a sinister new meaning as jurisdictions around the world stumble over each other to 'set the people's data free'. NYC boasts in subway ads that 'our apps are whiz kid certified' (i.e. third party) which of course translates to 'we didn't pay for them, and don't blame us if somebody got it wrong and the bus don't come.' This session reports on my (and other people's) research aimed at prying out data that you're probably not supposed to have from Open Government Systems around the world. For example, Philadelphia, PA cavalierly posted the past 7 years of political contribution receipts which contained the full names and personal addresses of thousands of people, some of whom probably didn't want that information to be out there in such a convenient form. The entire database was also trivially downloadable as a CSV file and analysis of it yielded some fascinating and unexpected information. Referring back to classic computer science and accounting principles like 'least privilege' and 'segregation of duties' the presentation will suggest some ways to have our Open Data cake without letting snoopy people eat it. Tom Keenan (@drfuture) wrote his first machine and assembler language programs in 1965 and by 1972 was working as a systems programmer on the KRONOS and MULTICS operating systems. This led to a long career as a computer science professor, media commentator and writer about the human side of technology. He helped design one of the first automated DNA sequencing machines as well as a system for personal identification based on typing rhythm. He has a Masters in Engineering and a Doctorate from Columbia University and has held a number of credentials including CISSP but doesnít feel the need for that now. An award-winning journalist, he co-authored the 1984 CBC Radio IDEAS series "Crimes of the Future" and is currently writing a book on creepiness to be published by OR Books. Blog: http://decreeping.wordpress.com/ Materials: https://www.defcon.org/images/defcon-21/dc-21-presentations/Keenan/DEFCON-21-Tom-Keenan-Torturing-Open-Government-Systems-for-Fun.pdf
Views: 1004 DEFCONConference
PlayStation Presents - PSX 2017 Opening Celebration | English CC
 
03:03:39
Join us as we kick off PSX 2017 with PlayStation Presents, starting at 8 PM Pacific on Friday December 8th. Listen in on candid discussions with some of PlayStation’s top developers, get the latest on some of the biggest games coming in 2018, and be the first to witness some special announcements.
Views: 309824 PlayStation
Deutsche Übersetzung des original Bitcoin-Papers von Satoshi Nakamoto | deutsch
 
28:25
Eine Satz-für-Satz Übersetzung des original Bitcoin Papers von Satoshi Nakamoto. Dieses Whitepaper legte 2008 die Grundlage für Bitcoin sowie die gesamte Blockchain-Technologie. Es diskutiert alle wichtigen Aspekte zur Umsetzung einer Kryptowährung wie Bitcoin, das Konzept der Blockchain, Sicherheit, dem Proof-of-Work-Verfahren sowie der Wahrscheinlichkeit, dass ein Angreifer das Netzwerk überwältigt.
What Is Bitcoin?
 
04:51
https://www.diginomics.com
Views: 558 Diginomics
SATOSHI NAKAMOTO - WikiVidi Documentary
 
16:08
Satoshi Nakamoto is the name used by the unknown person or people who designed bitcoin and created its original reference implementation. As part of the implementation, they also devised the first blockchain database. In the process they were the first to solve the double-spending problem for digital currency. They were active in the development of bitcoin up until December 2010.... http://www.wikividi.com ____________________________________ Shortcuts to chapters: 00:00:35 History 00:01:06 Development of bitcoin 00:03:43 Characteristics and identity 00:05:42 Nick Szabo 00:07:04 Dorian Nakamoto 00:09:13 Hal Finney ____________________________________ Copyright WikiVidi. Licensed under Creative Commons. Wikipedia link: https://en.wikipedia.org/wiki/Satoshi_Nakamoto
Aadhar - UIDAI - How it works [in Hindi]
 
11:41
AADHAAR (Hindi: आधार) is a National scale project aiming to build a secure, reliable and centralized repository of personal demographic and biometric data, initiated by the Government of India. AADHAAR (Hindi: आधार) is no ID Card scheme. This training video tells us everything about how the whole system is supposed to work.
Views: 175972 Priyatu Mandal
Google I/O 2014 - HTTPS Everywhere
 
45:45
Speaker(s): Ilya Grigorik, Pierre Far Description: Data delivered over an unencrypted channel is insecure, untrustworthy, and trivially intercepted. We must protect the security, privacy, and integrity of our users data. In this session we will take a hands-on tour of how to make your websites secure by default: the required technology, configuration and performance best practices, how to migrate your sites to HTTPS and make them user and search friendly, and more. Your users will thank you. Watch all Google I/O 2014 videos at: g.co/io14videos
Views: 129837 Google Developers

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