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Information & Network Security Lecture --  Key Distribution Techniques | public-secret | (Eng-Hindi)
 
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-~-~~-~~~-~~-~- Please watch: "PL vs FOL | Artificial Intelligence | (Eng-Hindi) | #3" https://www.youtube.com/watch?v=GS3HKR6CV8E -~-~~-~~~-~~-~-
Views: 28184 Well Academy
Key Distribution Center (KDC)
 
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This video is part of the Udacity course "Intro to Information Security". Watch the full course at https://www.udacity.com/course/ud459
Views: 16311 Udacity
Key Distribution Centre (CSS441, L20, Y15)
 
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Symmetric key distribution using a Key Distribution Centre; attacks on a KDC. Course material via: http://sandilands.info/sgordon/teaching
Views: 4672 Steven Gordon
NETWORK SECURITY - PUBLIC KEY DISTRIBUTION
 
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There are four ways to distribute the public keys among the users. 1) Public Announcement 2) Public Key Directory 3) Public Key Authority 4) Certificate Authority
key distribution problem in cryptography
 
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Data sharing problems in cryptography
Views: 4948 nirmal jeyaraj
Decentralised Symmetric Key Distribution (CSS441, L19, Y15)
 
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Exchanging a symmetric key using symmetric key distribution in a decentralised approach. Course material via: http://sandilands.info/sgordon/teaching
Views: 2019 Steven Gordon
05 Key Distribution
 
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Views: 3730 Synplify
Symmetric Key and Public Key Encryption
 
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Modern day encryption is performed in two different ways. Check out http://YouTube.com/ITFreeTraining or http://itfreetraining.com for more of our always free training videos. Using the same key or using a pair of keys called the public and private keys. This video looks at how these systems work and how they can be used together to perform encryption. Download the PDF handout http://itfreetraining.com/Handouts/Ce... Encryption Types Encryption is the process of scrambling data so it cannot be read without a decryption key. Encryption prevents data being read by a 3rd party if it is intercepted by a 3rd party. The two encryption methods that are used today are symmetric and public key encryption. Symmetric Key Symmetric key encryption uses the same key to encrypt data as decrypt data. This is generally quite fast when compared with public key encryption. In order to protect the data, the key needs to be secured. If a 3rd party was able to gain access to the key, they could decrypt any data that was encrypt with that data. For this reason, a secure channel is required to transfer the key if you need to transfer data between two points. For example, if you encrypted data on a CD and mail it to another party, the key must also be transferred to the second party so that they can decrypt the data. This is often done using e-mail or the telephone. In a lot of cases, sending the data using one method and the key using another method is enough to protect the data as an attacker would need to get both in order to decrypt the data. Public Key Encryption This method of encryption uses two keys. One key is used to encrypt data and the other key is used to decrypt data. The advantage of this is that the public key can be downloaded by anyone. Anyone with the public key can encrypt data that can only be decrypted using a private key. This means the public key does not need to be secured. The private key does need to be keep in a safe place. The advantage of using such a system is the private key is not required by the other party to perform encryption. Since the private key does not need to be transferred to the second party there is no risk of the private key being intercepted by a 3rd party. Public Key encryption is slower when compared with symmetric key so it is not always suitable for every application. The math used is complex but to put it simply it uses the modulus or remainder operator. For example, if you wanted to solve X mod 5 = 2, the possible solutions would be 2, 7, 12 and so on. The private key provides additional information which allows the problem to be solved easily. The math is more complex and uses much larger numbers than this but basically public and private key encryption rely on the modulus operator to work. Combing The Two There are two reasons you want to combine the two. The first is that often communication will be broken into two steps. Key exchange and data exchange. For key exchange, to protect the key used in data exchange it is often encrypted using public key encryption. Although slower than symmetric key encryption, this method ensures the key cannot accessed by a 3rd party while being transferred. Since the key has been transferred using a secure channel, a symmetric key can be used for data exchange. In some cases, data exchange may be done using public key encryption. If this is the case, often the data exchange will be done using a small key size to reduce the processing time. The second reason that both may be used is when a symmetric key is used and the key needs to be provided to multiple users. For example, if you are using encryption file system (EFS) this allows multiple users to access the same file, which includes recovery users. In order to make this possible, multiple copies of the same key are stored in the file and protected from being read by encrypting it with the public key of each user that requires access. References "Public-key cryptography" http://en.wikipedia.org/wiki/Public-k... "Encryption" http://en.wikipedia.org/wiki/Encryption
Views: 481021 itfreetraining
1/2: Key Distribution Center (KDC)
 
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See also ... 2nd part: Key Distribution Center (KDC) https://www.youtube.com/watch?v=gd9QzLxRCCw
Views: 708 118yt118
Secret Key Distribution with Public Key Crypto (CSS322, L23, Y14)
 
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Using public key crypto to exchange secret keys. Man-in-the-middle attack on public keys; Public key distribution with authorities. Course material via: http://sandilands.info/sgordon/teaching
Views: 3746 Steven Gordon
What is KEY DISTRIBUTION CENTER? What does KEY DISTRIBUTION CENTER mean?
 
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What is KEY DISTRIBUTION CENTER? What does KEY DISTRIBUTION CENTER mean? KEY DISTRIBUTION CENTER meaning - KEY DISTRIBUTION CENTER definition - KEY DISTRIBUTION CENTER explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ In cryptography, a key distribution center (KDC) is part of a cryptosystem intended to reduce the risks inherent in exchanging keys. KDCs often operate in systems within which some users may have permission to use certain services at some times and not at others. For instance, an administrator may have established a policy that only certain users may backup to tape. (Perhaps the administrator has concerns that unrestricted use might result in someone smuggling out a tape containing important information; but the precise reason does not matter for the purpose of explaining the functioning of the key-distribution center.) Many operating systems can control access to the tape facility via a "system service". If that system service further restricts the tape drive to operate only on behalf of users who can submit a service-granting ticket when they wish to use it, there remains only the task of distributing such tickets to the appropriately permitted users. If the ticket consists of (or includes) a key, one can then term the mechanism which distributes it a KDC. Usually, in such situations, the KDC itself also operates as a system service. A typical operation with a KDC involves a request from a user to use some service. The KDC will use cryptographic techniques to authenticate requesting users as themselves. It will also check whether an individual user has the right to access the service requested. If the authenticated user meets all prescribed conditions, the KDC can issue a ticket permitting access. KDCs mostly operate with symmetric encryption. In most (but not all) cases the KDC shares a key with each of all the other parties. The KDC produces a ticket based on a server key. The client receives the ticket and submits it to the appropriate server. The server can verify the submitted ticket and grant access to user submitting it. Security systems using KDCs include Kerberos. (Actually, Kerberos partitions KDC functionality between two different agents: the AS (Authentication Server) and the TGS (Ticket Granting Service).)
Views: 623 The Audiopedia
Key Management & Distribution: Part 1
 
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Fundamental concepts of Distribution of public & private keys are discussed. PKI and PKIX are analyzed. Digital certificates standards are presented
Views: 3830 Scholartica Channel
QCrypt2017 Tu24 Measurement device independent quantum key distribution in practical scenarios
 
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Chao Wang, Wei Chen, Fang-Xiang Wang, Yu-Yang Ding, Yong-Jun Qian, Shuang Wang, Zhen-Qiang Yin, Guang-Can Guo, and Zheng-Fu Han, "Measurement-device-independent quantum key distribution in practical scenarios", QCrypt2017, Tu24, 18-22 Sept 2017, Cambridge UK
Views: 136 QCrypt2017
Quantum Cryptography in 6 Minutes
 
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Quantum Cryptography explained simply. Regular encryption is breakable, but not quantum cryptography. Today we'll look at the simplest case of quantum cryptography, quantum key distribution. It uses the Heisenberg Uncertainty Principle to prevent eavesdroppers from cracking the code. Hi! I'm Jade. Subscribe to Up and Atom for new physics, math and computer science videos every week! *SUBSCRIBE TO UP AND ATOM* https://www.youtube.com/c/upandatom *Let's be friends :)* TWITTER: https://twitter.com/upndatom?lang=en *QUANTUM PLAYLIST* https://www.youtube.com/playlist?list=PL1lNrW4e0G8WmWpW846oE_m92nw3rlOpz *SOURCES* http://gva.noekeon.org/QCandSKD/QCandSKD-introduction.html https://www.sans.org/reading-room/whitepapers/vpns/quantum-encryption-means-perfect-security-986 https://science.howstuffworks.com/science-vs-myth/everyday-myths/quantum-cryptology.htm The Code Book - Simon Singh *MUSIC* Prelude No. 14 by Chris Zabriskie is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://chriszabriskie.com/preludes/ Artist: http://chriszabriskie.com/
Views: 22160 Up and Atom
What are security issues in Cryptography
 
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www.hiteshChoudhary.com www.newdemy.com What are security issues in Cryptography? Why there is a need of Cryptography is a very important question. In the earlier times when one need to transfer any sensitive information, one can write it on paper and can seal it along with manual monitoring system i.e. one person guarding or protecting the information. But after the invention of radio, things got changed. One can tune into your radio without your knowledge and can collect all information. Just collecting the information is not a bug issue but one can modify the information as well. Information security attack is a broad term, so let’s make a few scenario examples to clarify it out on a broad level. Case 1 User A wants to transmit a file to user B. The file may contain some sensitive information like Bank passwords. User C, who is not authorized to read the file, is somehow monitor the transfer and captures a copy of the file during transmission. Case 2 User A wants to transmit a file to user B. User A gives some bank details to open and close new accounts. User C, intercepts the file and add User C’s information to be added and gets a new unauthorized bank account. User C can also delete some valid account information by altering the information. User B updates the details according to information passed by User A, having no idea that information was tempered on its way. Case 3 User A is just relaxing in this case. User C, who is an unauthorized person, just creates his own message and act as a User A and passes the information to User B. User B accepts the message and act according the message. It is totally up to User C that what he wants to do. User C can format all the information or add some backdoor information in the system and so on. Case 4 User C works for the company and due to some reasons C was fires from the company. User A asks the User B, who is an administrator in the company to lock all the access of User C’s account. But User C, creates some useless traffic and delays the message to reach to user B. User c makes a final access to the account and downloads the entire information to local or permanent access. After completing the work he allows the message to get passed. Case 5 A message is sent from user A to user B to purchase xyz share or xyz amount. Things didn’t went in right direction for User A and investment lose value. Now user A denies that he ever passed any message to user B to purchase any share. These are some of the broadly covered situations explaining the need of cryptography. Cryptography gives us a solution to all of these problems. We just have to utilize the concept and put it in some form of codes or protocols to implement it.
Views: 2397 Hitesh Choudhary
Cryptography
 
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Google IT Support Professional Certificate Course 6 - IT Security: Defense against the digital dark arts, Module 2 - Cryptology To get certificate subscribe at: https://www.coursera.org/specializations/google-it-support ================= The whole course playlist: Google IT Support Professional Certificate https://www.youtube.com/playlist?list=PL2jykFOD1AWZlfwMPcVKwaFrRXbqObI3U ================= IT Security https://www.youtube.com/playlist?list=PL2jykFOD1AWaEXEpyRf-Im3U8WQ962Y4B ================= https://www.facebook.com/cyberassociation/ https://scsa.ge/en/online-courses/ This six-course certificate, developed exclusively by Google, includes innovative curriculum designed to prepare you for an entry-level role in IT support. A job in IT can mean in-person or remote help desk work, either in a small business or at a global company, like Google. Whether you’ve been tinkering with IT or are completely new to the field, you’ve come to the right place. If you’re looking for a job, upon completion of the certificate, you can share your information with top employers, like Bank of America, Walmart, Sprint, GE Digital, PNC Bank, Infosys, TEKsystems, UPMC, and, of course, Google. Course 6 - IT Security: Defense against the digital dark arts About the Course This course covers a wide variety of IT security concepts, tools, and best practices. It introduces threats and attacks and the many ways they can show up. We’ll give you some background of encryption algorithms and how they’re used to safeguard data. Then, we’ll dive into the three As of information security: Authentication, authorization, and accounting. We’ll also cover network security solutions, ranging from firewalls to Wifi encryption options. The course is rounded out by putting all these elements together into a multi-layered, in-depth security architecture, followed by recommendations on how to integrate a culture of security into your organization or team. At the end of this course, you’ll understand: - how various encryption algorithms and techniques work and their benefits and limitations. - various authentication systems and types. - the difference between authentication and authorization. At the end of this course, you’ll be able to: - evaluate potential risks and recommend ways to reduce risk. - make recommendations on how best to secure a network. - help others to understand security concepts and protect themselves Who is this class for: This program is intended for beginners who are interested in developing the skills necessary to perform entry-level IT support. No pre-requisite knowledge is required. However, if you do have some familiarity with IT, you can skip through any content that you might already know and speed ahead to the graded assessments. Module 2 - Cryptology In the second module of this course, we'll learn about cryptology. We'll explore different types of encryption practices and how they work. We'll show you the most common algorithms used in cryptography and how they've evolved over time. By the end of this module, you'll understand how symmetric encryption, asymmetric encryption, and hashing work; you'll also know how to choose the most appropriate cryptographic method for a scenario you may see in the workplace. Learning Objectives • Understand the how symmetric encryption, asymmetric encryption, and hashing work. • Describe the most common algorithms of cryptography. • Choose the most appropriate cryptographic method given a scenario.
Views: 237 intrigano
Public key cryptography - Diffie-Hellman Key Exchange (full version)
 
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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: 628290 Art of the Problem
AWS #KMS - Key Management Service - Customer Master Key, Data Key, Envelope Encryption (Part 1)
 
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- We will learn the way #encryption & #decryption happens while Data at Rest in AWS. - Overview of AWS KMS service - Customer Master Key and types - AWS managed & Customer managed - Data Keys - Envelope Encryption - GenerateDataKey API usage READ -- https://docs.aws.amazon.com/kms/latest/developerguide/concepts.html ----------------------------------------------------------- I would request to look at our playlists to learn systematically for AWS Certifications --- Solutions Architect - https://www.youtube.com/watch?v=ywHFXfuJoSU&list=PLTyrc6mz8dg8YE7OpHYoaRILnf1RQM8bz &&& SysOps Administrator - https://www.youtube.com/watch?v=UFSH-KuDGj8&list=PLTyrc6mz8dg8grU1HEhVw4zoCyvAl5MBO ++++++++++++++++++++++++++++++++++++++++ SUBSCRIBE to our youtube channel - youtube.com/knowledgeindia I have answered lot of AWS Interview questions in LIVE sessions here -- https://www.youtube.com/playlist?list=PLTyrc6mz8dg_tEexS22k_gmssDmkWkEMd Connect with me on LinkedIn to read interesting AWS updates & Practical Scenario Questions --- https://www.linkedin.com/in/knowledgeindia Join our AWS Learning Group on LinkedIn - https://www.linkedin.com/groups/10389754 Don't miss any updates, please follow my FB page http://fb.me/AWStutorials & Twitter - http://twitter.com/#!/knowledge_india And for AWS exercises & case-studies, you can refer our blog -- https://aws-tutorials.blogspot.com/ ++++++++++++++++++++++++++++++++++++++++
How quantum physics can make encryption stronger | Vikram Sharma
 
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As quantum computing matures, it's going to bring unimaginable increases in computational power along with it -- and the systems we use to protect our data (and our democratic processes) will become even more vulnerable. But there's still time to plan against the impending data apocalypse, says encryption expert Vikram Sharma. Learn more about how he's fighting quantum with quantum: designing security devices and programs that use the power of quantum physics to defend against the most sophisticated attacks. Check out more TED Talks: http://www.ted.com The TED Talks channel features the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and more. Follow TED on Twitter: http://www.twitter.com/TEDTalks Like TED on Facebook: https://www.facebook.com/TED Subscribe to our channel: https://www.youtube.com/TED
Views: 48171 TED
CISA Exam-Last Minute Revision- Asymmetric Encryption Domain 5   Copy
 
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Point to remember for CISA exam: (1)In any given scenario, when objective is to ensure ‘confidentiality’, message has to be encrypted using receiver’s public key. (2)In any given scenario, when objective is to ensure ‘authentication’, HASH of the message has to be created and HASH to be encrypted using sender’s private key. Please note that hash is also known as message digest. (3)In any given scenario, when objective is to ensure ‘integrity’, HASH of the message has to be created and HASH to be encrypted using sender’s private key. Please note that hash is also known as message digest. (4)In any given scenario, when objective is to ensure ‘confidentiality & authentication’, following treatment is required: -Hash of the message to be encrypted using sender’s private key (to ensure authentication/non-repudiation) -Message to be encrypted using receiver’s public key (to ensure confidentiality) (5)In any given scenario, when objective is to ensure ‘confidentiality & authentication & integrity’, following treatment is required: -Message to be encrypted using receiver’s public key (to ensure confidentiality) -Hash of the message to be encrypted using sender’s private key (to ensure authentication/non-repudiation and integrity)
Views: 1352 Hemang Doshi
Principles of Network Security and Cryptography
 
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In this video tutorial we study the basic principles of Network security and also see the concept of Cryptography by understanding a basic example. Principles of Network Security to be discussed in this video are as follows: Confidentiality Authentication Integrity Non-repudiation Access Control Availability We will also learn the concept of Cryptography in this tutorial. Here's the definition of Cryptography: Cryptography is the art of achieving security by encoding messages to make them non-readable This video is a continuation of the previous video so make sure you check that video as well so that you get to know some basics of Network security. Download the FREE Network Security App on Google Playstore for Android - https://play.google.com/store/apps/details?id=com.intelisenze.networksecuritytutorials Simple Snippets on Facebook- https://www.facebook.com/simplesnippets/ Simple Snippets on Instagram- https://www.instagram.com/simplesnipp... Simple Snippets Google Plus Page- https://plus.google.com/+SimpleSnippets Simple Snippets email ID- [email protected] Download my FREE Network Security Android App - https://play.google.com/store/apps/details?id=com.intelisenze.networksecuritytutorials For Classroom Coaching in Mumbai for Programming & other IT/CS Subjects Checkout UpSkill Infotech - https://upskill.tech/ UpSkill is an Ed-Tech Company / Coaching Centre for Information Technology / Computer Science oriented courses and offer coacing for various Degree courses like BSc.IT, BSc.CS, BCA, MSc.IT, MSc.CS, MCA etc. Contact via email /call / FB /Whatsapp for more info email - [email protected] We also Provide Certification courses like - Android Development Web Development Java Developer Course .NET Developer Course Check us out on Social media platforms like Facebook, Instagram, Google etc Facebook page - https://www.facebook.com/upskillinfotech/ Insta page - https://www.instagram.com/upskill_infotech/ Google Maps - https://goo.gl/maps/vjNtZazLzW82
Views: 24455 Simple Snippets
Secure composition of security protocols
 
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Invited tutorial, given by Véronique Cortier (CNRS research director at Loria, Nancy, France). Abstract: -------------- Cryptographic protocols aim at securing communications over insecure networks like the Internet. Over the past decades, numerous decision procedures and tools have been developed to automatically analyze security protocols. The field has now reached a good level of maturity with efficient techniques for protocols analyzed in isolation. However, protocols are typically built using several sub-protocols and tools do not scale well for complex protocols. In this tutorial, we will present formal models for security protocols and explore when it is possible to securely (and formally) compose protocols, in several scenarios, such as long-term key sharing, symmetric and asymmetric key distribution, secure channels.
Views: 54 ETAPS 2017
Why The Crypto & Bitcoin Price Market Crashed - Top 10 Reasons
 
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Why did the crypto and Bitcoin price markets crash - I explore the top 10 reasons for the down turn. Do you agree? SUPPORT ME ON PATREON patreon.com/thecryptolark RECOMMENDED EXCHANGES BINANCE https://bit.ly/2Dyvpps KUCOIN https://bit.ly/2zLJKuv LIQUID - https://bit.ly/2Di72M2 COINBASE - GET $10 Free Bitcoin for signing up! https://bit.ly/2zqeVfV ABRA - GET $25 IN BTC - https://invite.abra.com/p9lwV0WqCR CRYPTOCURRENCY HARDWARE WALLETS LEDGER NANO S https://bit.ly/2yZp4j5 TREZOR https://bit.ly/2qERryf CERTIFIED CRYPTOCURRENCY BROKERAGE Caleb & Brown https://bit.ly/2Feq8F6 SOCIAL MEDIA - These are my only accounts, beware of scammers! TWITTER twitter.com/TheCryptoLark FACEBOOK facebook.com/TheCryptoLark TELEGRAM GROUP t.me/thecryptolark TELEGRAM HANDLE @cryptolark MINDS minds.com STEEMIT steemit.com/@larksongbird D-TUBE d.tube/#!/c/larksongbird PODCAST - find me on I-tunes "Crypto Waves" https://bit.ly/2B0X1kH CONTACT E-mail [email protected] with business or event enquiries. DISCLAIMER Everything expressed here is my opinion and not official investment advice - please do your own research before risking your own money. This video may contain copyrighted material the use of which is not always specifically authorized by the copyright owner. Such material is made available for research or academic purposes. We believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, this video is distributed without profit, for research and educational purposes. Custom intro and tunes created by The Maker's Initiative - Auckland, NZ Thanks for watching; please like, subscribe, and share if you found this useful! #bitcoin #ethereum #cryptocurrency #neo #elastos #litecoin #eos #ripple #ontology #monero #stellarlumenes #cardano #nem #dash #ethereumclassic #vechain #tezos #zcash #dogecoin
Views: 11787 The Crypto Lark
What to expect Crypto Ban or regulation? Interview of our legal advisor Mohammed Danish Advocate.
 
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Watch an exclusive interview with Mohammed Danish Advocate who is also our legal advisor at crypto kanoon. Watch this interview if you are interested to know: What will happen in the worst case scenario? Impact of FSDC press release on crypto? What is the importance of FSDC press release? How serious this report need to be taken? What a crypto trader should in the current situation? Watch this interview to know more! Follow us on Twitter: https://twitter.com/cryptokanoon
Views: 4160 Crypto Kanoon
What is ENCRYPTED KEY EXCHANGE? What does ENCRYPTED KEY EXCHANGE mean?
 
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What is ENCRYPTED KEY EXCHANGE? What does ENCRYPTED KEY EXCHANGE mean? ENCRYPTED KEY EXCHANGE meaning - ENCRYPTED KEY EXCHANGE definition - ENCRYPTED KEY EXCHANGE explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ Encrypted Key Exchange (also known as EKE) is a family of password-authenticated key agreement methods described by Steven M. Bellovin and Michael Merritt. Although several of the forms of EKE in this paper were later found to be flawed , the surviving, refined, and enhanced forms of EKE effectively make this the first method to amplify a shared password into a shared key, where the shared key may subsequently be used to provide a zero-knowledge password proof or other functions. In the most general form of EKE, at least one party encrypts an ephemeral (one-time) public key using a password, and sends it to a second party, who decrypts it and uses it to negotiate a shared key with the first party. A second paper describes Augmented-EKE, and introduced the concept of augmented password-authenticated key agreement for client/server scenarios. Augmented methods have the added goal of ensuring that password verification data stolen from a server cannot be used by an attacker to masquerade as the client, unless the attacker first determines the password (e.g. by performing a brute force attack on the stolen data). A version of EKE based on Diffie-Hellman, known as DH-EKE, has survived attack and has led to improved variations, such as the PAK family of methods in IEEE P1363.2. With the US patent on EKE expiring in late 2011, an EAP authentication method using EKE was published as an IETF RFC. The EAP method uses the Diffie-Hellman variant of EKE.
Views: 225 The Audiopedia
What is Public Key Infrastructure (PKI) by Securemetric
 
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This video explains to you how PKI works to create a secure environment.
Views: 85659 SecureMetric
What Is Public Key Cryptography (PKC) Full Explain In Hindi For O level Exam
 
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What Is Public Key Cryptography? What is encryption encryption-kya-hota-hai ╔╦╦╦═╦╗╔═╦═╦══╦═╗☆ ║║║║╩╣╚╣═╣║║║║║╩╣TO My Channel ╚══╩═╩═╩═╩═╩╩╩╩═╝☆ Subscribe my channel like videos comment below any query to Subscribe Us & Comment:- https://goo.gl/FJ1nWJ Follow On social site © original channel ██║▌│║║█║█║▌║║█║▌│ █ __/LINKS\_ ► Facebook:➜ http://facebook.com/techvideoguru ► Twitter:➜ https://mobile.twitter.com/techvideoguru ► Google+:➜ https://plus.google.com/u/0/107344256878607670469 ► Website:➜ http://techvideoguru.mobi ►Youtube:-https://www.youtube.com/techvideoguru ►Blog:-http://techvideoguru.blogspot.in ►Instagram:-https://www.instagram.com/techvideoguru/ ►Pinterest:- https://www.pinterest.com/techvideoguru/ ►Dailymotion:-http://www.dailymotion.com/techvideoguru ►LinkedIn:-https://in.linkedin.com/in/vikas-kumar-maurya-27262b78 ================================================ ╔══════════════════════╗ __|Watch More Videos|_ https://goo.gl/FJ1nWJ ╚══════════════════════╝
Views: 67211 TechVideo Guru
QCrypt2017 Tu11 Core and access QKD networks
 
01:19:50
Andrew Shields, "Core and access QKD networks", QCrypt2017, Tu11 18-22 Sept 2017, Cambridge UK
Views: 480 QCrypt2017
Ethereum Network Upgrade, Price Action, Gaming, & News Updates
 
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Ethereum's constantinople update is days away, what does it mean? What is going on with the price of Ethereum? UNWFP, Neon District, & more new. Sign up for NASH - https://nash.io/referrals?code=2JWpfo EDCON - https://www.edcon.io/ - 10% Off with code TheCryptoLark Sources https://medium.com/myetherwallet/mew-introduces-first-kyc-less-crypto-exit-to-fiat-gateway-powered-by-bity-a24b6aa3e3c4 https://bitcoinexchangeguide.com/metamask-surpasses-1-million-ethereum-wallet-users-on-the-chrome-web-store/ https://blog.ethereum.org/2019/02/22/ethereum-constantinople-st-petersburg-upgrade-announcement/ https://www.parity.io/un-world-food-programme-uses-parity-ethereum-to-aid-100-000-refugees/ https://www.cryptoglobe.com/latest/2019/02/stanford-s-researchers-propose-cost-effective-privacy-protocol-for-ethereum/ SUPPORT ME ON BITBACKER WITH CRYPTO https://bitbacker.io/user/cryptolark/ RECOMMENDED EXCHANGES ABRA - GET $25 IN BTC - https://invite.abra.com/p9lwV0WqCR BINANCE https://www.binance.com/en?ref=10192350 BINANCE JE - BUY CRYPTO WITH POUNDS & EUROS https://www.binance.je/?ref=35019746 COINBASE - GET $10 Free Bitcoin for signing up! https://www.coinbase.com/join/597e56a59d75c600b3a86461 KUCOIN https://www.kucoin.com/#/?r=18a8f CRYPTOCURRENCY HARDWARE WALLETS LEDGER NANO S https://www.ledger.com/?r=6877 TREZOR https://shop.trezor.io/?a=Aw902Rsted CERTIFIED CRYPTOCURRENCY BROKERAGE Caleb & Brown https://partners.calebandbrown.com/cryptolark SOCIAL MEDIA - These are my only accounts, beware of scammers! TWITTER twitter.com/TheCryptoLark FACEBOOK facebook.com/TheCryptoLark TELEGRAM GROUP t.me/thecryptolark TELEGRAM HANDLE @cryptolark STEEMIT steemit.com/@larksongbird D-TUBE d.tube/#!/c/larksongbird PODCAST - find me on I-tunes "Crypto Waves" https://player.fm/series/crypto-waves-the-crypto-lark-podcast CONTACT E-mail [email protected] with business or event enquiries. DISCLAIMER Everything expressed here is my opinion and not official investment advice - please do your own research before risking your own money. This video may contain copyrighted material the use of which is not always specifically authorized by the copyright owner. Such material is made available for research or academic purposes. We believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, this video is distributed without profit, for research and educational purposes. Custom intro and tunes created by The Maker's Initiative - Auckland, NZ Thanks for watching; please like, subscribe, and share if you found this useful! #bitcoin #ethereum #cryptocurrency #neo #elastos #litecoin #eos #ripple #ontology #monero #stellarlumenes #cardano #nem #dash #ethereumclassic #vechain #tezos #zcash #dogecoin
Views: 5969 The Crypto Lark
Kerberos
 
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This video is part of the Udacity course "Intro to Information Security". Watch the full course at https://www.udacity.com/course/ud459
Views: 24347 Udacity
PKI Hierarchy
 
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PKI (Public Key Infrastructure) is a hierarchy of Certificate Authorities. This video looks at 3 different types of hierarchies that can be used to issue certificates. Download Handout http://itfreetraining.com/Handouts/Certificates/PKIHierarchy.pdf Considerations When deploying Certificate Authorities (CA's) you should consider the size of your company, geographic distribution and the number of certificates that are required. Before a certificate can be used it needs to be checked that it has not been revoked. This can be done via a CA or online responder. When deploying CA's consider WAN links the users may need to travel over when obtaining new certificates and also checking that an existing certificate is still valid. Single-Tier Hierarchy This means that there is one CA on the network. This is suited for small networks. Having one server does mean less administration; however, it does not provide any fault tolerance. In order to issue certificates, the server must be online. The CA contains private keys and when there is only one CA on the network the server cannot be taken offline in order to protect these keys. If an attacker was to obtain these private keys, they could effectively create their own certificates or decrypt any traffic encrypted with any existing certificate. Two-Tier Hierarchy This contains two levels of CA's. One Root CA and any number of child CA's. In order to improve security, the root CA is usually taken offline after the child CA's have been issued a certificate. The root CA only ever needs to be brought back online if another child CA is added to the network or a child CA needs to renew its certificate. Having a second level provides redundancy as multiple CA's can be created to issue certificates. Different CA's at the second level can be used for different reasons. For example, one CA may be for internal clients while another CA could be used for external customers or business partners. Three-Tier Hierarchy A three tier hierarchy adds another layer of CA's to the hierarchy. This improves security as the first 2 levels can be taken offline when not required. They can be brought back online only when new CA's need to be added to the network. Validity Period The validity period is how long a certificate is valid for before it cannot be used. The root CA certificate is the top of the hierarchy. Once the root CA certificate expires, all certificates in the hierarchy expire with it. For this reason, the root CA normally has a very high validly period like 20 years. A rule of thumb is that subordinate CA's have half the value of their parent CA. If they have the same validly period, this would mean that after the CA has been online for a day, it would be issuing certificates that expire after its parent CA. See http://YouTube.com/ITFreeTraining or http://itfreetraining.com for our always free training videos. This is only one video from the many free courses available on YouTube.
Views: 26156 itfreetraining
What is BROADCAST ENCRYPTION? What does BROADCAST ENCRYPTION mean?
 
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What is BROADCAST ENCRYPTION? What does BROADCAST ENCRYPTION mean? BROADCAST ENCRYPTION meaning - BROADCAST ENCRYPTION definition - BROADCAST ENCRYPTION explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ Broadcast encryption is the cryptographic problem of delivering encrypted content (e.g. TV programs or data on DVDs) over a broadcast channel in such a way that only qualified users (e.g. subscribers who have paid their fees or DVD players conforming to a specification) can decrypt the content. The challenge arises from the requirement that the set of qualified users can change in each broadcast emission, and therefore revocation of individual users or user groups should be possible using broadcast transmissions, only, and without affecting any remaining users. As efficient revocation is the primary objective of broadcast encryption, solutions are also referred to as revocation schemes. Rather than directly encrypting the content for qualified users, broadcast encryption schemes distribute keying information that allows qualified users to reconstruct the content encryption key whereas revoked users find insufficient information to recover the key. The typical setting considered is that of a unidirectional broadcaster and stateless users (i.e., users do not keep bookmarking of previous messages by the broadcaster), which is especially challenging. In contrast, the scenario where users are supported with a bi-directional communication link with the broadcaster and thus can more easily maintain their state, and where users are not only dynamically revoked but also added (joined), is often referred to as multicast encryption. The problem of practical broadcast encryption has first been formally studied by Amos Fiat and Moni Naor in 1994. Since then, several solutions have been described in the literature, including combinatorial constructions, one-time revocation schemes based on secret sharing techniques, and tree-based constructions. In general, they offer various trade-offs between the increase in the size of the broadcast, the number of keys that each user needs to store, and the feasibility of an unqualified user or a collusion of unqualified users being able to decrypt the content. Luby and Staddon have used a combinatorial approach to study the trade-offs for some general classes of broadcast encryption algorithms. A particularly efficient tree-based construction is the "subset difference" scheme, which is derived from a class of so-called subset cover schemes. The subset difference scheme is notably implemented in the AACS for HD DVD and Blu-ray Disc encryption. A rather simple broadcast encryption scheme is used for the CSS for DVD encryption. The problem of rogue users sharing their decryption keys or the decrypted content with unqualified users is mathematically insoluble. Traitor tracing algorithms aim to minimize the damage by retroactively identifying the user or users who leaked their keys, so that punitive measures, legal or otherwise, may be undertaken. In practice, pay TV systems often employ set-top boxes with tamper-resistant smart cards that impose physical restraints on a user learning their own decryption keys. Some broadcast encryption schemes, such as AACS, also provide tracing capabilities.
Views: 314 The Audiopedia
Anne Broadbent - New levels of security
 
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Anne Broadbent, a researcher at the Institute for Quantum Computing, talks about her work in quantum cryptographic protocols beyond quantum key distribution. She speaks about the new levels of security for communications and computation required in adversarial scenarios. A paper she recently published with Gus Gutoski and Douglas Stebila covers her team's discovery of quantum one-time programs. To see her co-author Gus Gutoski speak about their paper at the QCrypt Conference, see http://www.youtube.com/watch?v=qvj1l5y99w4 Find out more about IQC! Website - https://uwaterloo.ca/institute-for-quantum-computing/ Facebook - https://www.facebook.com/QuantumIQC Twitter - https://twitter.com/QuantumIQC
Black Hat USA 2010: Cryptographic Agility: Defending Against the Sneakers Scenario 1/5
 
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Speaker: Bryan Sullivan In the movie Sneakers, a brilliant young mathematician invents a device that defeats a public-key encryption algorithm. An interesting fiction, but what if this happened in real life? All of your applications using that algorithm would need to be changed as quickly as possible. This session will show how to best accomplish this by implementing cryptography without hard-coding specific algorithms. For more information click here (http://bit.ly/dwlBpJ)
Views: 376 Christiaan008
Graphics Encryption Communication System (GCCS)
 
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Year: 2000 Programming Language: Java Swing Have you ever think to encrypt your graphics during you sent your pictures over the network? The system named GCCS is actually a prototype that built to make this scenario reality! The scenario: 1. Initially, at server site need to generate a pair of public key and private key and save it as a meaningful name, eg. PubKey_[PersonName].key, PriKey_[PersonName].key. 2. Then, the public key actually can be distributed to the party that wants to send drawing message to you via an unsecured network. 3. For the party that wants to send a message to you (at the client site), he/she need to choose the public key to encrypt the message before sent to you (the server site). 4. After the encryption process complete, the user may click on the "send" button for the drawing information to transmit via an insecure network. The screen below shows the data transmission process happens at the client site and the data receiving process at the server side. 5. After you have received the encrypted message, you actually need to choose the corresponding private key in order to get the message decryption. The functionality: The server program actually can provide you to generate a variable number of key, such as 4, 8, ... , 128 characters. The more characters for the key, the system need more time to perform the encryption and decryption process. The client program provides some basic functionality for drawing a message before sending. User-friendly GUI to ease users to use this prototype. That is really a wonderful encryption and decryption system written in JAVA. It also implemented using client-server architecture. Please have a try! Code or further inquiries: [email protected]
Views: 178 Sy Tan
Bitcoin Q&A: Multi-signature and distributed storage
 
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What happens when wallets (personal or at an exchange) are hacked? What is "sweeping" with regards to private keys? After a hack, is it possible to track the stolen bitcoin and identify the hacker? How do you keep bitcoin safe in a group / corporate environment? Is it possible to create a multi-signature setup with Trezor and Electrum? Could passphrases be brute-forced? What is happening with browser extension deprecation? You will have to evaluate which tools are the best based on the amount of cryptocurrency you own, your circumstances, and your threat model. "'I Forgot My PIN': An Epic Tale of Losing $30,000 in Bitcoin" - https://www.wired.com/story/i-forgot-my-pin-an-epic-tale-of-losing-dollar30000-in-bitcoin/ These questions are from the MOOC 9.3 and 9.4 sessions, as well as the (rescheduled) April Patreon Q&A session, which took place on March 2nd, March 9th, and May 5th 2018 respectively. Andreas is a teaching fellow with the University of Nicosia. The first course in their Master of Science in Digital Currency degree, DFIN-511: Introduction to Digital Currencies, is offered for free as an open enrollment MOOC course to anyone interested in learning about the fundamental principles. 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 Protocol development security - https://youtu.be/4fsL5XWsTJ4 Geopolitics and state-sponsored attacks - https://youtu.be/htxPRTJLK-k How to get people to care about security - https://youtu.be/Ji1lS9NMz1E Exchanges, identity, and surveillance - https://youtu.be/TVFy8xXfxAA 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: 6468 aantonop
Efficient Spark Analytics on Encrypted Data with Gidon Gershinsky (IBM)
 
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Enterprises and non-profit organizations often work with sensitive business or personal information, that must be stored in an encrypted form due to corporate confidentiality requirements, the new GDPR regulations, and other reasons. Unfortunately, a straightforward encryption doesn’t work well for modern columnar data formats, such as Apache Parquet, that are leveraged by Spark for acceleration of data ingest and processing. When Parquet files are bulk-encrypted at the storage, their internal modules can’t be extracted, leading to a loss of column / row filtering capabilities and a significant slowdown of Spark workloads. Existing solutions suffer from either performance or security drawbacks. We work with the Apache Parquet community on a new modular encryption mechanism, that enables full columnar projection and predicate push down (filtering) functionality on encrypted data in any storage system. Besides confidentiality, the mechanism supports data authentication, where the reader can verify a file has not been tampered with or replaced with a wrong version. Different columns can be encrypted with different keys, allowing for a fine grained access control. In this talk, I will demonstrate Spark integration with the Parquet modular encryption mechanism, running efficient analytics directly on encrypted data. The demonstration scenarios are derived from use cases in our joint research project with a number of European companies, working with sensitive data such as connected car messages (location, speed, driver identity, etc). I will describe the encryption mechanism, and the observed performance implications of encrypting and decrypting data in Spark SQL workloads.
Views: 352 Databricks
Bitcoin & Crypto - A Haven for Criminals & Money Launderers
 
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Bloomberg reports on the evils of Bitcoin ATMs for laundering money for criminals. How serious is it? Sources https://www.bloomberg.com/features/2018-bitcoin-atm-money-laundering/?utm_campaign=socialflow-organic&utm_content=crypto&utm_source=twitter&utm_medium=social SUPPORT ME ON PATREON patreon.com/thecryptolark RECOMMENDED EXCHANGES BINANCE https://bit.ly/2Dyvpps KUCOIN https://bit.ly/2zLJKuv LIQUID - https://bit.ly/2Di72M2 COINBASE - GET $10 Free Bitcoin for signing up! https://bit.ly/2zqeVfV ABRA - GET $25 IN BTC - https://invite.abra.com/p9lwV0WqCR CRYPTOCURRENCY HARDWARE WALLETS LEDGER NANO S https://bit.ly/2yZp4j5 TREZOR https://bit.ly/2qERryf CERTIFIED CRYPTOCURRENCY BROKERAGE Caleb & Brown https://bit.ly/2Feq8F6 SOCIAL MEDIA - These are my only accounts, beware of scammers! TWITTER twitter.com/TheCryptoLark FACEBOOK facebook.com/TheCryptoLark TELEGRAM GROUP t.me/thecryptolark TELEGRAM HANDLE @cryptolark MINDS minds.com STEEMIT steemit.com/@larksongbird D-TUBE d.tube/#!/c/larksongbird PODCAST - find me on I-tunes "Crypto Waves" https://bit.ly/2B0X1kH CONTACT E-mail [email protected] with business or event enquiries. DISCLAIMER Everything expressed here is my opinion and not official investment advice - please do your own research before risking your own money. This video may contain copyrighted material the use of which is not always specifically authorized by the copyright owner. Such material is made available for research or academic purposes. We believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, this video is distributed without profit, for research and educational purposes. Custom intro and tunes created by The Maker's Initiative - Auckland, NZ Thanks for watching; please like, subscribe, and share if you found this useful! #bitcoin #ethereum #cryptocurrency #neo #elastos #litecoin #eos #ripple #ontology #monero #stellarlumenes #cardano #nem #dash #ethereumclassic #vechain #tezos #zcash #dogecoin
Views: 1851 The Crypto Lark
The Bitcoin Wealth Gap
 
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The State Of Bitcoin: https://www.delphidigital.io/bitcoin --------------------------------------------------------------------------------- Protect And Store Your Crypto With A Ledger Nano: https://www.ledger.com?r=8af3ed38d3b7 ---------------------------------------------------------------------------- Open An Account With Binance! https://www.binance.com/?ref=22170588 ----------------------------------------------------------------------------- Mine Bitcoin On Your Computer For Free: https://honeyminer.com/referred/58xpg ------------------------------------------------------------------------------ Bitcoin Donations Address: 1BYhrLpntMYW97sd8K6fquTcr5MYwPAe2y Ripple (XRP) Donation Address: rLDZeEw8nmsDjLQtACp53Bm9QDcB5bT3S6 Ethereum Donation Address: 0x0e5f5CEFaA9A0713AB6D8F79E6679E22d86C21f6 Litecoin Donation Address: Lh7dbMcXHTxaEAKg4tigKxoXCikceU4ZnM BAT Donation Address: 0x0e5f5CEFaA9A0713AB6D8F79E6679E22d86C21f6 OmiseGo Donation Address: 0x0e5f5CEFaA9A0713AB6D8F79E6679E22d86C21f6 -------------------------------------------------------------------------------- Follow Me On Facebook ! https://www.facebook.com/TheModernInvestor https://www.youtube.com/channel/UC-5HLi3buMzdxjdTdic3Aig --------------------------------------------------------------------------------- Photo Credit To: https://proxy.duckduckgo.com/iu/?u=https%3A%2F%2Fcdni.rt.com%2Ffiles%2F2018.02%2Fthumbnail%2F5a7c23cedda4c8a3778b460e.jpg&f=1
Views: 14283 The Modern Investor
Cryptocurrency Explained | What is Cryptocurrency? | Cryptocurrency Explained Simply | Simplilearn
 
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This "Cryptocurrency Explained" video will help you understand what is a cryptocurrency, how paper money came into existence, the future of cryptocurrency, features of cryptocurrency, how cryptocurrency works, what make cryptocurrencies special, what is 'crypto' in cryptocurrency and you will also see a comparison between bitcoin and an ether. A cryptocurrency is a digital or virtual currency that is meant to be a medium of exchange. Today, cryptocurrencies have become a global phenomenon known to most people but not understood by many people. So, lets deep dive into this video to understand how cryptocurrency actually works. Below topics are explained in this "Cryptocurrency Explained" video- 1. What is cryptocurrency? ( 03:20 ) 2. What makes cryptocurrencies special? ( 04:12 ) 3. What's the 'crypto' in cryptocurrencies? ( 04:50 ) 4. Bitcoin vs Ether ( 06:39 ) 5. What's the future of cryptocurrency? ( 08:30 ) To learn more about Blockchain, subscribe to our YouTube channel: https://www.youtube.com/user/Simplilearn?sub_confirmation=1 You can also go through the slides here: https://goo.gl/QD28Gx Watch more videos on Blockchain: https://www.youtube.com/playlist?list=PLEiEAq2VkUUKmhU6SO2P73pTdMZnHOsDB #Whatisblockchain #Blockchain #Blockchaintutorial #Bitcoin #Blockchainonlinetraining #Blockchainforbeginners #BlockchainTechnology #Simplilearn Simplilearn’s Blockchain Certification Training has been designed for developers who want to decipher the global craze surrounding Blockchain, Bitcoin and cryptocurrencies. You’ll learn the core structure and technical mechanisms of Bitcoin, Ethereum, Hyperledger and Multichain Blockchain platforms, use the latest tools to build Blockchain applications, set up your own private Blockchain, deploy smart contracts on Ethereum and gain practical experience with real-world projects. Why learn Blockchain? Blockchain technology is the brainchild of Satoshi Nakamoto, which enables digital information to be distributed. A network of computing nodes makes up the Blockchain. Durability, robustness, success rate, transparency, incorruptibility are some of the enticing characteristics of Blockchain. By design, Blockchain is a decentralized technology which is used by a global network of the computer to manage Bitcoin transactions easily. Many new business applications will result in the usage of Blockchain such as Crowdfunding, smart contracts, supply chain auditing, Internet of Things(IoT), etc. This Blockchain Certification course offers a hands-on training covering relevant topics in cryptocurrency and the wider Blockchain space. From a technological standpoint, you will develop a strong grasp of core Blockchain platforms, understand what Bitcoin is and how it works, learn key vocabulary and concepts commonly used when discussing Blockchain and understand why engineers are motivated to create an app with Ethereum. Hands-on exercises and projects will give you practical experience in real-world Blockchain development scenarios. After completing this course, you will be able to: 1. Apply Bitcoin and Blockchain concepts in business situations 2. Build compelling Blockchain applications using the Ethereum Blockchain 3. Design, test and deploy secure Smart Contracts 4. Use the latest version of Ethereum development tools (Web3 v1.0) 5. Develop Hyperledger Blockchain applications using Composer Framework 6. Model the Blockchain applications using Composer modeling language 7. Develop front-end (client) applications using Composer API 8. Leverage Composer REST Server to design a web-based Blockchain solution 9. Design Hyperledger Fabric Composer Business Network 10. 10. Understand the true purpose and capabilities of Ethereum and Solidity 11. See practical examples of Blockchain and mining 12. Describe the various components of Hyperledger Fabric Technology (Peers, Orderer, MSP, CA) The Blockchain Certification Training Course is recommended for: 1. Developers 2. Technologists interested in learning Ethereum, Hyperledger and Blockchain 3. Technology architects wanting to expand their skills to Blockchain technology 4. Professionals curious to learn how Blockchain technology can change the way we do business 5. Entrepreneurs with technology background interested in realizing their business ideas on the Blockchain 6. Anyone interested in ERC20 tokens and ICOs Learn more at: https://www.simplilearn.com/blockchain-certification-training?utm_campaign=Cryptocurrency-Explained-8NgVGnX4KOw&utm_medium=Tutorials&utm_source=youtube For more updates on courses and tips follow us on: - Facebook: https://www.facebook.com/Simplilearn - Twitter: https://twitter.com/simplilearn - LinkedIn: https://www.linkedin.com/company/simplilearn - Website: https://www.simplilearn.com Get the Android app: http://bit.ly/1WlVo4u Get the iOS app: http://apple.co/1HIO5J0
Views: 20872 Simplilearn
Addressing the New Complexities in Key Management Interoperability: KMIP V. Next
 
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This presentation from Sept 2012 explores several critical scenarios for interoperability that must be addressed in key management. Speakers from the TC discuss what these scenarios mean in terms of enhancing KMIP in areas such as trust establishment, entity credentials, tenant identification and key policy.
Views: 1343 Chris O'Neil
Russia to Spark the Next Bitcoin Bull Run?!? $1 Trillion Bitcoin Market Cap NOT Impossible!!!
 
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Could Russia spark the next #Bitcoin bull run?!? Why a $1 trillion $BTC market cap is NOT impossible. Ethereum Classic 51% attack, Samourai Wallet removes privacy features, Brave Browser hits 5.5M daily users, crypto news, and more! 🔥 Pre-Order Ledger Nano X 👉 http://Ledger.kdub.co 🗳 VOTE for Crypto Zombie 🧟‍♂️ 👉 https://cia.cryptoinfluence.io/#/ 📩 Sign up for The Blockchain Brief Newsletter 👉 http://BlockchainBrief.kdub.co 🧟‍♂️ Join The “Crypto Zombies” Telegram ►► https://t.me/joinchat/E67b8w-hQrMsZebuCC6peg 🔺Get The Brave Browser Here ►► https://brave.com/cry542 🛒 Shop on Amazon with BTC ►► http://Alagoria.kdub.co 0:27 Markets 🚀 2:48 Ethereum Classic (ETC) 51% attack: https://cryptoslate.com/ethereum-classic-experiencing-51-percent-attack-immutability-violated/ 5:06 What is a 51% attack?!? https://cryptoslate.com/explained-51-percent-attacks-on-bitcoin-cryptocurrencies/ 5:21 Charlie Lee: https://twitter.com/SatoshiLite/status/1082491687169998848 6:13 PoW 51% Attack Cost: https://www.crypto51.app/ 7:00 Bitcoin transaction fees super low: https://www.ccn.com/bitcoin-transaction-fees-hit-three-year-low-as-lightning-network-segwit-help-btc-scale/ 8:02 BTC hash rate up! https://www.blockchain.com/en/charts/hash-rate 8:21 Bitcoin $7 trillion cap?!? https://cointelegraph.com/news/winklevoss-twins-confirm-commitment-to-bitcoin-etf-during-reddit-ama 9:47 Trace Mayer: https://twitter.com/TraceMayer/status/1082504802247102464 11:08 Russia to start next bullpen?!? https://blockmanity.com/news/bitcoin/russia-might-invest-billions-into-bitcoin-to-mitigate-u-s-sanctions/ 11:34 Putin likes NEO? https://micky.com.au/russias-billions-could-trigger-bitcoin-bull-run-next-month/ 16:06 NEO announcement: https://neonewstoday.com/general/neo-st-petersburg-competency-center-announces-neo-distributed-storage-system/ 18:20 Brave Browser (BAT) hits 5.5M MAU: https://twitter.com/brave/status/1082325481448366087?s=21 19:11 Tron (TRX) accomplishments: https://ambcrypto.com/tron-trx-weekly-report-tron-to-outperform-ethereum-eth-by-the-end-of-2019/ 20:37 Brazil says no to crypto contract: https://cointelegraph.com/news/brazil-government-suspends-indigenous-crypto-plans-as-new-president-criticizes-project 21:19 People still look at BTC in dollars: https://cryptovest.com/news/crypto-gamblers-undeterred-by-falling-market-still-rely-on-fiat-equivalent-research-shows/ 23:10 Samourai Wallet removes privacy features: https://cointelegraph.com/news/samourai-btc-wallet-removes-privacy-features-at-googles-behest-for-transparency-policy 24:40 BTC a lot… or zero? https://cointelegraph.com/news/wall-streets-bill-miller-bitcoin-has-potential-to-be-worth-a-lot-or-worth-zero 26:14 Bitcoin is unstoppable! https://twitter.com/hodlonaut/status/1081858009800863744 🔥 Pre-Order Ledger Nano X 👉 http://Ledger.kdub.co 🗳 VOTE for Crypto Zombie 🧟‍♂️ 👉 https://cia.cryptoinfluence.io/#/ 📩 Sign up for The Blockchain Brief Newsletter 👉 http://BlockchainBrief.kdub.co 👉 Ledger Nano Giveaway: https://coincodex.tv/contest Buy Bitcoin on Coinbase ►► http://Coinbase.kdub.co Ledger Nano S Wallet ►► http://Ledger.kdub.co Buy Cryptos on Binance ►► http://Binance.kdub.co Buy Cryptos on Huobi ►► http://Huobi.kdub.co Buy Cryptos on Bibox ►► http://Bibox.kdub.co Buy Cryptos on KuCoin ►► http://KuCoin.kdub.co Follow me on Twitter ►► http://twitter.com/TheCryptoZombie Join The Telegram ►► https://t.me/joinchat/E67b8w-hQrMsZebuCC6peg DISCLAIMER: I am not a financial advisor. This is not financial advice. This is just my opinion. Always do your own research before investing. I am not responsible for your trades… Bitcoin SMASHES $4k!!! NEW $BTC Futures to LAUNCH! U.S.A. Missing Out?!? https://youtu.be/38fTuqEWgKY Watch this video again because it's awesome: https://youtu.be/WEaACZw3OvY #cryptocurrency #blockchain #cryptozombie #crypto #btc #bitcoincash #bch #bsv #ethereum #eth #ripple #xrp #bravebrowser #basicattentiontoken #bat #tron #trx $BTC $ETH $XRP $BSV $BCH $BAT $TRX
Views: 24458 Crypto Zombie
Blockchain Security Tools
 
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Introduction Basic blockchain architecture as it pertains to block creation and consensus mechanisms is very sound. The algorithms used to accomplish the cryptographic functions might be questionable. Hence special consideration should be given to key management, key length, hashing algorithms, and the environment that activity is conducted in. To date none of the block chains have been hacked or maliciously modified, hence from that aspect we are safe. If you consider blockchain mechanisms to be the foundation, which are unhackable at this point, the next few layers above is where the problems start. In this show, I talk about various blockchain security tools currently available. Basic Blockchain Eco system The illustration below depicts the different layers that in my opinion comprise a blockchain eco system. Layer 1: Consensus and Cryptographic functions. Layer 2: Virtual processor executing code that executes smart contracts. For Ethereum this would be Ethereum Virtual Machine(EVM) executing compiled solidity code. For bitcoin blockchain this would be Virtual Processor executing script code. Layer 3: Application Programming Interface(API) this performs multiple functions such as: • Converting smart contract code to bytecode • Wallet requests for transaction processing • Exposing blockchain explorer capability Layer4: This is where outside world interacts with Layers 3, 2, and 1. Weakest Link The weakest link is Layer 4. This is where all the problems start. First, the wallets, if the owner does not protect the private key and passphrase or they are exposed, all the crypto held in that wallet can be lost. Second, the smart contracts, if the smart contract code is not written properly then the inherent compiled byte code that lives on the blockchain will have vulnerabilities. If some one is able to exploit this particular vulnerability the impacts can be very damaging. Just like the DAO hack which lead to over $60m getting stolen. Some solutions Since smart contract is just code, it has to follow secure coding practices. Although there are a lot of secure coding methodologies, and tools available for conventional programming languages such as C, C++, C#, Java, JavaScript, etc., there was nothing available for newly created smart contract languages such as solidity and script. With the lack of secure coding practices & tools, coupled with inexperienced programmers in these new languages, it was a disaster waiting to happen. Tools Various organizations are now bringing out blockchain security tools to address this void. Here is the list: • A platform should support conventional programming languages to ensure existing secure coding practices can be leveraged. • OpenZeppelin has created an open framework of reusable and secure smart contracts in the Solidity language. • Trailofbits has created following tools: ○ A repository that contains examples of common Ethereum smart contract vulnerabilities, including real code. ○ "Slither combines a set of proprietary static analyses on Solidity that detect common mistakes such as bugs in reentrancy, constructors, method access, and more. Run Slither as you develop, on every new checkin of code." ○ "Echidna applies next-generation smart fuzzing to EVM bytecode. Write Echidna tests for your code after you complete new features. It provides simple, high coverage unit tests that discover security bugs. Until your app has 80+% coverage with Echidna, don’t consider it complete". ○ "Manticore uses symbolic execution to simulate complex multi-contract and multi-transaction attacks against EVM bytecode. Once your app is functional, write Manticore tests to discover hidden, unexpected, or dangerous states that it can enter. Manticore enumerates the execution states of your contract and verifies critical functionality". ○ They have also created some reversing tools just like Porosity below which converts bytecode to solidity code. • NCC Group had compiled a DASP (Decentralized Application Security Project) Top10 list • Porosity, a decompiler and smart contract auditing tool for Ethereum smart-contracts.
What is Bitcoin? Google Trends Show Good Signs for Cryptocurrency Despite Price
 
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Google trends show a good year for Bitcoin and cryptocurrencies - the numbers are surprising - but still far from adoption. Source https://cointelegraph.com/news/bitcoin-beats-google-trends-in-2018-as-internet-users-seek-to-know-what-it-is https://www.ccn.com/mainstream-2018-brought-54-million-new-crypto-users-despite-bear-market/ SUPPORT ME ON PATREON patreon.com/thecryptolark RECOMMENDED EXCHANGES BINANCE https://bit.ly/2Dyvpps KUCOIN https://bit.ly/2zLJKuv LIQUID - https://bit.ly/2Di72M2 COINBASE - GET $10 Free Bitcoin for signing up! https://bit.ly/2zqeVfV ABRA - GET $25 IN BTC - https://invite.abra.com/p9lwV0WqCR CRYPTOCURRENCY HARDWARE WALLETS LEDGER NANO S https://bit.ly/2yZp4j5 TREZOR https://bit.ly/2qERryf CERTIFIED CRYPTOCURRENCY BROKERAGE Caleb & Brown https://bit.ly/2Feq8F6 SOCIAL MEDIA - These are my only accounts, beware of scammers! TWITTER twitter.com/TheCryptoLark FACEBOOK facebook.com/TheCryptoLark TELEGRAM GROUP t.me/thecryptolark TELEGRAM HANDLE @cryptolark MINDS minds.com STEEMIT steemit.com/@larksongbird D-TUBE d.tube/#!/c/larksongbird PODCAST - find me on I-tunes "Crypto Waves" https://bit.ly/2B0X1kH CONTACT E-mail [email protected] with business or event enquiries. DISCLAIMER Everything expressed here is my opinion and not official investment advice - please do your own research before risking your own money. This video may contain copyrighted material the use of which is not always specifically authorized by the copyright owner. Such material is made available for research or academic purposes. We believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, this video is distributed without profit, for research and educational purposes. Custom intro and tunes created by The Maker's Initiative - Auckland, NZ Thanks for watching; please like, subscribe, and share if you found this useful! #bitcoin #ethereum #cryptocurrency #neo #elastos #litecoin #eos #ripple #ontology #monero #stellarlumenes #cardano #nem #dash #ethereumclassic #vechain #tezos #zcash #dogecoin
Views: 5191 The Crypto Lark
Top 5 Cryptocurrencies of 2019 so far. Why are they doing so well?
 
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Top 5 Cryptocurrencies of 2019 so far. Why are they doing so well? Binance Coin (BNB) Binance Coin is a cryptocurrency launched by the biggest cryptocurrency exchange in the world: Binance. The aim of BNB is to support the exchange. The coins have several use cases: lower fees (listing, exchange, withdrawal), higher referral bonuses for holders, as a market, to contribute to ICOs and in the future as a fuel for the decentralised version of Binance. Binance exchange has been the most reliable and user friendly for a long time which was reflected in the BNB price since it has been very well incorporated within the exchange. Current price: $15.12 ATH: $24.37, Drop: -38%, Mcap: 7th place My opinion: BNB seems to prove that coins with actual use cases can increase demand, the valuation is quite high currently however. Still, Binance domination should insure constant demand. Holo (HOT) Holochain represents an alternative for blockchain technology that provides its users with distributed computing and applications using HoloPorts. HoloPorts allow the network to scale due to the network load being offloaded across all of the nodes linked to the network Holoports are basically the network nodes and the project will be using Holo fuel. Once the Holo ecosystem launches the HoloTokens will be redeemed for Holo fuel. The Holo is currently at the Closed Alpha so the demand is mostly based on speculation and potential increase once the live platform is launched. Current price: $0.0011, ATH: $0.0020, Drop: -43%, Mcap: 40th place My opinion: Holo has a lot of promising features but it's still far from implementation so it's mostly based on speculation. Because of that I would wait with investment. Enjin Coin (ENJ) Enjin is aiming to be a decentralized platform to create, manage, distribute, and trade virtual goods. Giving game developers and content creators a new model of virtual ownership. The platform allows minting unique in-game items, currencies, and virtual tokens using Enjin Coins as the parent currency. Enjin has been very busy this year with plenty of apps and solution that include Enjin Wallet, EnjinX Explorer & API, Game Design SDKs, Enjin Network and other. Current price: $0.18, ATH: $0.46, Drop: -60%, Mcap: 43rd place My opinion: I have always been bullish on Enjin since they were one of the few ICOs that actually had a significant product before and through development this year they are proving that not all ICOs are scams. However the recent incrase was crazy so thats something to consider. Maker (MKR) Maker Token is used to govern the functionalities of all the Maker projects, Currently the most renowned project is the creation and development of the stable coin named DAI which is the core currency of the MakerDAO system. The coin’s value is pegged to that of USD, in simpler words, 1 USD = 1 DAI. DAI is considered one of the most legit stablecoins and the only one that is truly decentralised. Maker and Ethereum have both been used in the process of ensuring DAI price. Through the governane MKR also can generate passive income. . Current price: $707, ATH: $1,799, Drop: -61 % , Mcap: 16th place My opinion: Maker and DAI are one of the best application of cryptocurrency where users can use smart contracts that act as a loan. Still currently the success is deeply connected to how resilient DAI can be. Chainlink (LINK) Launched by the fintech company SmartContract, Chainlink is described by its developers as a secure blockchain middleware that intends to connect smart contracts across blockchains by allowing smart contracts to access key off-chain resources such as data feeds and web APIs ChainLink Network is a decentralized network of ChainLink Nodes, which are all selling usage of specific data feeds, APIs and various off-chain payment capabilities directly to a smart contract. Chainlink is moving quickly with the development and is already used by different companies in real life scenarios. Current price: $0.48, ATH: $1.45, Drop: -67 % , Mcap: 35th place My opinion: Just like with Enjin Chainlink proves that real life usage create demand for tokens but the current valuation is quite high.
Views: 641 Crypto Coins
Breaking Bitcoin Market Update - Wick City Baby Wick Wick City - Live Technical Analysis
 
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For more info about Cracking Crypto, be sure to head over to the website here: https://CrackingCryptocurrency.com. For BreakingBitcoin Market Updates, click here: https://BreakingBitcoin.CrackingCryptocurrency.com. For our Trading 101 playlist, click here: https://Trading101.CrackingCryptocurrency.com. If you’re looking for a FREE trading group to hangout in and soak up the surrounding knowledge and insights, come join us in the Trading Community: https://Discord.CrackingCryptocurrency.com. And of course, if you’re looking to upgrade your trading strategy with Premium Signals and Strategy Mentorship, head over here for more info: https://CrackingCryptocurrency.com/premium-trading-group Check out the Cracking Crypto Merch shop over here https://CrackingCryptocurrency.com/merch Also our Trading View for the latest charts!: https://tv.CrackingCryptocurrency.com Follow us on Twitter for hand curated Crypto News: https://tw.crackingcryptocurrency.com Follow us on Facebook to keep up to date!: https://fb.crackingcryptocurrency.com Steemit! You know we're world-wide!: https://steemit.CrackingCryptocurrency.com Tip Jar for improving live streams, and the Trading Community: BTC, ETH, PayPal, or CrackingCrypto Merch! Https://CrackingCryptocurrency.com/donate If you're into Patreon, stop by and check ours out! Https://patreon.com/crackingcrypto What is Cracking Cryptocurrency? Cracking Cryptocurrency is a cutting edge subscription based resource for cryptocurrency traders and investors. We utilize proprietary software and trading algorithms to calculate profitable trades across multiple cryptocurrency exchanges and on a variety of assets. We're also a growing community resource for traders and investors passionate about cryptocurrency. Utilize our website, or our growing Discord server to network with other like-minded traders and individuals. We host a variety of individuals with a variety of passions and trading styles. You are certain to meet like-minded and inspiring individuals whatever your interests. If you’d like to share the Breaking Bitcoin playlist to keep someone else up to date, click here: https://BreakingBitcoin.CrackingCryptocurrency.com We are an active and growing community, and we are 100% self-funded through subscription fees. A subscription to Cracking Cryptocurrency will give you access behind the paywall on our website and our Discord server. A subscriber to Cracking Cryptocurrency will receive daily trade signals across multiple exchanges. A signal will contain a recommended entry price, projected targets or sell points, and stop losses in case the market turns against us. We have a team of traders constantly monitoring the markets to ensure good positions, good entries, and reasonable targets for a healthy win to loss ratio that will increase your profits. There are very few opportunities that come along to get in at the door of an asset class that will revolutionize banking, trading, and monetary policy. The market space for Cryptocurrencies is still in its infancy, yet is has attracted the attention and excitement of professional traders, investors, and believers the world-over. Do not miss your opportunity to fulfill your dreams of financial independence. Invest wisely in Cryptocurrency, and do so with the guidance of experts who have made the painful mistakes for you. No strategy is perfect, and we cannot guarantee that your results will mirror ours or those of our traders. However I can tell you, that I have personally witnessed the growth and success of many who have come under the umbrella of Cracking Cryptocurrency, and watched complete beginners to trading become competent and financially independent traders. This is not a dream, this is an opportunity that is beckoning to you. All you need to do is reach out, and seize it. - Binance Exchange - One of the best exchanges to trade on! Amazing customer growth, security, and support! https://www.binance.com/?ref=11137053 - Coinbase - Looking to purchase your first Bitcoins? https://www.coinbase.com/join/58bf79be53fc49111adc0275 Music Credit to Ryan Little - West Coast **DISCLAIMER** Cracking Cryptocurrency is a publisher that does not act nor pose as qualified financial advisers for any individual or group. Our exclusive trade signals are for the use of paying subscribers only. It should be noted that all investment comes with inherent risk, and although we boast an impressive win-loss ratio, past performance is not an assurance of future results. Our services and recommendations do not constitute financial advice. #bitcoin #cryptocurrency #trading #btc #eth #xrp #ltc #bch #xlm #xmr, #PricePrediction, #Live, #BitcoinAnalysis, #BitcoinTrading, #CryptocurrencyTrading, #Bitcoin2018, #BitcoinCrash, #BitcoinMoon, #BitcoinNews, #BitcoinPrice, #Bitcointo0, #CryptocurrencyAnalysis, #Altcoins, #Alts
Views: 962 Cracking Crypto
Public Key Encryption-: Introduction
 
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In this video Tripti has given an introduction to public key. Also, the distribution of symmetric key is explained using typical scenarios. You can find the entire course here: https://goo.gl/d4as52 You can find all the courses by Tripti Tanvi here: https://goo.gl/uyA5U1 Download the Unacademy Learning App from the Google Play Store here:- https://goo.gl/02OhYI Download the Unacademy Educator app from the Google Play Store here: https://goo.gl/H4LGHE Do Subscribe and be a part of the community for more such lessons here: https://goo.gl/UGFo7b For more awesome courses on engineering visit: Visit Our Facebook Group on Engineering Curriculum here: https://goo.gl/5EqfqS Visit Our Facebook Group on GATE here: https://goo.gl/cPj5sb
Safe Storage is Key for Crypto / BTC Bull market! | CNBC Fast Money
 
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Cryptocurrency 24 hours 24/7 news #247Crypto #Cryptocurrency #Bitcoin #cinadean #invest follow me on Instagram! @cinadean1 Like and Follow our facebook page: https://www.facebook.com/CryptocurrencyTrends/ https://share.robinhood.com/cinam (0 fee trades) Click this link:https://www.coinbase.com/join/5a1715f... (using this link will give you a 10 dollar sign up bonus) https://www.ledgerwallet.com/r/ccc9 https://www.binance.com/?ref=12125250 https://www.kucoin.com/#/?r=7bt1J8 Like and Follow our facebook page: https://www.facebook.com/CryptocurrencyTrends/ Cryptocurrency 24 hours 24/7 news Altcoin ASIC/ASIC Miner Blockchain Distributed & Central Ledger Fork Hashrate Mining Node P2P Public/Private Key Signature Smart Contract 1 Bitcoin BTC 2 Ethereum ETH 3 Bitcoin Cash BCH 4 Ripple XRP 5 Litecoin LTC 6 Dash DASH 7 NEO NEO 8 IOTA MIOTA 9 Monero XMR 10 NEM XEM 11 Ethereum Classic ETC 12 Lisk LSK 13 Qtum QTUM 14 EOS EOS 15 Hshare HSR 16 Cardano ADA 17 OmiseGO OMG 18 Zcash ZEC *NOT Professional advice, this is all just my own opinion and experience. Consult professionals for any tax, accounting or legal related questions you have. Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship,and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use
Views: 240 Cina Dean