Views: 7281 Lisk
○ Digital Signatures § Goal: verify Authenticity of a message. § Based on Asymmetric Cryptography. § Basic operations 1. Public / Private keys generation (using some algorithm like RSA) 2. Signing algorithm using the private key 3. Signature verification algorithm using the corresponding public key i. Extending previous Example • Steps (Order is very important, bold stuff is the difference added to authenticate sender) ® Party 1 (Alice) 1. Generates a random AES Session Key (32 bytes / 256 bits) 2. Generates a random Initialization Vector (IV) (16 bytes / 128 bits) 3. Encrypt the message to be sent using the AES Session Key & IV 4. Calculate an HMAC of the encrypted message using the AES Session key 5. Encrypt the AES Session Key using the Public Key of Party 2 (Bob) The recipient. 6. Calculate Signature using the private signing key on the HMAC 7. Sends a packet of (Encrypted Message, Encrypted Session Key, Initialization Vector, HMAC, and Signature) to Bob ® Party 2 (Bob) 1. Decrypts Session key using his Private Key 2. Recalculates the HMAC of the encrypted message (Validates message integrity) } If HMAC check pass – Verify digital signature using Alice Public Key w If signature verification pass w Decrypts the message using the decrypted AES Session Key and Initialization Vector w Otherwise, identity of the sender couldn't not be verified, reject message. } Otherwise, rejects the message because of integrity check failure. • Why Order matters? ® Timing Side-Channel Attacks ® Padding-Oracle Attack ○ Protocols § TLS/SSL • How TLS/SSL Works? • Mitigates against ® Man in the Middle Attacks ® Authentication, so the client can be sure it is talking to the correct destination. § Public Key Infrastructure (PKI) • Certificates aka X.509 Certificate (Sha-1 Signature Issues) ® A digitally signed file ® Identifies (Computer / User / Device) ® Has Public & Private Key, only the certificate owner has the Private Key. ® Has Expiration date ® Information about the CA that issued the cert ® X.509 Extension Attributes (like Usage attribute) ® Revocation Information. • Certificate Authority (CA) (CNNIC, WoSign) ® Issues, signs and manages certificates. ® Famous certificate authorities (Verisign, GoDaddy, … etc). • Trust Chains ® CA's can delegate the signing job to subordinate CA's ◊ Root CA's signs an intermediate signing certificate to the subordinate CA ® The subordinate CA can then issue certificates ® To validate a certificate, the client validates the signatures of all the intermediate stages and make sure all of them are linked to a Trusted CA • Certificate Revocation Lists (CRL's) ® When a certificate is compromised (Private Key leaked) it will be published on the CRL, so each time the cert is validated, the CRL list is checked in case cert is revoked. 3. Takeaways 4. Books a. Understanding Cryptography: A Textbook for Students and Practitionershttps://www.amazon.com/Understanding-Cryptography-Textbook-Students-Practitioners/dp/3642041000 Our facebook Page http://facebook.com/askdeveloper On Sound Cloud http://soundcloud.com/askdeveloper Please Like & Subscribe
Views: 844 Mohamed Elsherif
Improving collaboration while speeding up processes in engineering design. 2-Minute Explainer produced by Business Information Graphics at http://www.2MinuteExplainer.com
Views: 81 Business Information Graphics
In this video we will be using GPG to sign and verify data. Signing is used as a secure way to check whether data has been modified from the time of signing. We sign the data with our private key. Other users can verify the data and signature by using your public key. We are using Ubuntu Linux with the default install of GPG. Private keys were already generated. SUBSCRIBE FOR MORE VIDEOS https://bit.ly/2Ij9Ojc Visit DFIR.Science to learn more about Digital Forensic Science https://DFIR.Science If you like this video please make sure to click the like button and share with all your friends. ~ CONNECT ~ Twitter: https://twitter.com/DFIRScience Facebook: http://www.facebook.com/DFIR.Science Linkedin: http://linkedin.com/in/jijames/ Google+: https://plus.google.com/u/0/111792419183641165523 Digital Forensic Science: https://DFIR.Science
Views: 13131 DFIR.Science
Cryptography is a complex and confusing subject. In this talk you will learn about the core components of cryptography used in software development: securing data with encryption, ensuring data integrity with hashes and digital signatures, and protecting passwords with key derivation functions. While learning how to use these components, you will also learn the best practices that drive strong cryptography. This talk won’t make you a cryptography expert but it will give you the knowledge necessary to use cryptography properly. No prior knowledge of cryptography is required for this presentation. EVENT: Dutch PHP Conference in 2018 SPEAKER: Adam Englander PERMISSIONS: Original video was published with the Creative Commons Attribution license (reuse allowed). CREDITS: Original video source: https://www.youtube.com/watch?v=KcjJ19geKmA
Views: 46182 Coding Tech
Create Electronic Signature. How to make digital signature. Make Electronic signature, How to make Your Own Electronic Signature. Electronic or Digital Signature is must for Applying Job or anywhere. So, in this video I'll show you how to make digital signature by using your Android Phone.
Views: 865 RaRe iTech
This channel introduces the "e-Estonia" - a term commonly used to describe Estonia's emergence as one of the most advanced e-societies in the world. You can learn more about Estonian ICT and technology by watching the videos, visiting our homepage http://e-estonia.com or follow us on FB e-Estonia .You can also book a visit and live demo at Estonian ICT Demo Center in Tallinn and establish business contacts with Estonian ICT companies.
Views: 231699 e-estonia
This channel introduces the "e-Estonia" -http://e-estonia.com a term commonly used to describe Estonia's emergence as one of the most advanced e-societies in the world -- an incredible success story that grew out of a partnership between a forward-thinking government, a pro-active ICT sector and a switched-on, tech-savvy population. Book a visit and get a live demo at Estonian ICT Demo Center in Tallinn and establish business contacts with Estonian ICT companies.
Views: 3967 e-estonia
What is hash function/algorithm? What is mainly used for? What are three basic characteristics of a secure hash algorithm? In this video, I will also demonstrate how hash function works. Playlist: Basic Cryptography https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV Advanced Cryptography: https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7 Please leave comments, questions, and Please subscribe! Thank you very much! Sunny Classroom
Views: 49450 Sunny Classroom
what are in these video : Common security threats : Cryptography concepts : digital signatures ==================== 26- CCNA Security 210-260 : Cryptography concepts (digital signatures )| Arabic Darija ==================== linkedin :https://www.linkedin.com/in/yassirelghazy13/ Facebook : https://www.facebook.com/itup2youofficial My Facebook groups : IT jobs in morocco new jobs & vacancies : https://www.facebook.com/groups/286808315265475/ Arabic Cloud Computing Community | Azure |AWS|Openstack : https://www.facebook.com/groups/485166281985573/
Views: 59 YASSIR EL GHAZY
This video lecture is produced by S. Saurabh. He is B.Tech from IIT and MS from USA. Lecture Slides: Computer Networks A Top Down Approach by Jim Kurose and Ross Certification authority (CA) Digital Certificate free certificate authority certificate authority server certificate authority list microsoft certificate authority root certificate authority windows certificate authority certificate authority example how certificate authority works To study interview questions on Linked List watch http://www.youtube.com/playlist?list=PL3D11462114F778D7&feature=view_all To prepare for programming Interview Questions on Binary Trees http://www.youtube.com/playlist?list=PLC3855D81E15BC990&feature=view_all To study programming Interview questions on Stack, Queues, Arrays visit http://www.youtube.com/playlist?list=PL65BCEDD6788C3F27&feature=view_all To watch all Programming Interview Questions visit http://www.youtube.com/playlist?list=PLD629C50E1A85BF84&feature=view_all To learn about Pointers in C visit http://www.youtube.com/playlist?list=PLC68607ACFA43C084&feature=view_all To learn C programming from IITian S.Saurabh visit http://www.youtube.com/playlist?list=PL3C47C530C457BACD&feature=view_all
Views: 31287 saurabhschool
What is NONREPUDIATION? What does NONREPUDIATION mean? NONREPUDIATION meaning - NONREPUDIATION pronunciation - NONREPUDIATION definition - NONREPUDIATION explanation - How to pronounce NONREPUDIATION? 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 Non-repudiation refers to a state of affairs where the author of a statement will not be able to successfully challenge the authorship of the statement or validity of an associated contract. The term is often seen in a legal setting wherein the authenticity of a signature is being challenged. In such an instance, the authenticity is being "repudiated". In a general sense non-repudiation involves associating actions or changes to a unique individual. For a secure area, for example, it may be desirable to implement a key card access system. Non-repudiation would be violated if it were not also a strictly enforced policy to prohibit sharing of the key cards and to immediately report lost or stolen cards. Otherwise determining who performed the action of opening the door cannot be trivially determined. Similarly, for computer accounts, the individual owner of the account must not allow others to use that account, especially, for instance, by giving away their account's password, and a policy should be implemented to enforce this. This prevents the owner of the account from denying actions performed by the account. Regarding digital security, the cryptological meaning and application of non-repudiation shifts to mean: A service that provides proof of the integrity and origin of data. An authentication that can be asserted to be genuine with high assurance. Proof of data integrity is typically the easiest of these requirements to accomplish. A data hash, such as SHA2, is usually sufficient to establish that the likelihood of data being undetectably changed is extremely low. Even with this safeguard, it is still possible to tamper with data in transit, either through a man-in-the-middle attack or phishing. Due to this flaw, data integrity is best asserted when the recipient already possesses the necessary verification information. The most common method of asserting the digital origin of data is through digital certificates, a form of public key infrastructure to which digital signatures belong. Note that the public key scheme is not used for encryption in this form; i.e. the goal is not to achieve confidentiality, since a message signed with a private key can be read by anyone using the public key. Verifying the digital origin means that the certified/signed data can be, with reasonable certainty, trusted to be from somebody who possesses the private key corresponding to the signing certificate. If the key is not properly safeguarded by the original owner, digital forgery can become a major concern. The ways in which a party may attempt to repudiate a signature present a challenge to the trustworthiness of the signatures themselves. The standard approach to mitigating these risks is to involve a trusted third party. The two most common TTPs are forensic analysts and notaries. A forensic analyst specializing in handwriting can look at a signature, compare it to a known valid signature, and make a reasonable assessment of the legitimacy of the first signature. A notary provides a witness whose job is to verify the identity of an individual by checking other credentials and affixing their certification that the party signing is who they claim to be. Further, a notary provides the extra benefit of maintaining independent logs of their transactions, complete with the type of credential checked and another signature that can independently be verified by the preceding forensic analyst. For this double security, notaries are the preferred form of verification. On the digital side, the only TTP is the repository for public key certificates. This provides the recipient with the ability to verify the origin of an item even if no direct exchange of the public information has ever been made. The digital signature, however, is forensically identical in both legitimate and forged uses - if someone possesses the private key they can create a "real" signature. The protection of the private key is the idea behind the United States Department of Defense's Common Access Card (CAC), which never allows the key to leave the card and therefore necessitates the possession of the card in addition to the personal identification number (PIN) code necessary to unlock the card for permission to use it for encryption and digital signatures.
Views: 5348 The Audiopedia
Dr. Soper discusses forgeries of digital artifacts and digital identities. Topics covered include forged email messages, phishing, spam, forged websites and software, online impersonation, cryptographic seals, online identities, digital signatures, using public key encryption for digital signatures, trust in cyberspace, digital certificates, and certificate authorities.
Views: 16602 Dr. Daniel Soper
Today we’re going to talk about how to keep information secret, and this isn’t a new goal. From as early as Julius Caesar’s Caesar cipher to Mary, Queen of Scots, encrypted messages to kill Queen Elizabeth in 1587, theres has long been a need to encrypt and decrypt private correspondence. This proved especially critical during World War II as Allan Turing and his team at Bletchley Park attempted to decrypt messages from Nazi Enigma machines, and this need has only grown as more and more information sensitive tasks are completed on our computers. So today, we’re going to walk you through some common encryption techniques such as the Advanced Encryption Standard (AES), Diffie-Hellman Key Exchange, and RSA which are employed to keep your information safe, private, and secure. Note: In October of 2017, researchers released a viable hack against WPA2, known as KRACK Attack, which uses AES to ensure secure communication between computers and network routers. The problem isn't with AES, which is provably secure, but with the communication protocol between router and computer. In order to set up secure communication, the computer and router have to agree through what's called a "handshake". If this handshake is interrupted in just the right way, an attacker can cause the handshake to fault to an insecure state and reveal critical information which makes the connection insecure. As is often the case with these situations, the problem is with an implementation, not the secure algorithm itself. Our friends over at Computerphile have a great video on the topic: https://www.youtube.com/watch?v=mYtvjijATa4 Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Want to know more about Carrie Anne? https://about.me/carrieannephilbin The Latest from PBS Digital Studios: https://www.youtube.com/playlist?list=PL1mtdjDVOoOqJzeaJAV15Tq0tZ1vKj7ZV Want to find Crash Course elsewhere on the internet? Facebook - https://www.facebook.com/YouTubeCrash... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 232715 CrashCourse
When we are online shopping or banking, we want to make sure it is HTTPS, and a green padlock icon is in the address bar. What does HTTPS mean? What is significant about that small green padlock? To answer these two questions, we need to understand SSL certificate and how it works. Playlist: Advanced Cryptography/Public Key Infrastructure https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7 Playlist: Basic Cryptography https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV Please leave comments, questions and please subscribe! Sunny Classroom
Views: 138865 Sunny Classroom
Ethical Sharmaji #9 [Hindi] PKI System? Digital Signatures & Digital Certificates? Cryptography Attacks? Don't forget to Hit the Subscribe Button Below: https://bit.ly/2ssLR3k ------------------------------------------------------------ Introduction Video:https://youtu.be/mSqL7FzY5_o Module 1-- Introduction to Ethical Hacking Episode 1:https://youtu.be/L8xqXDA4qMc Episode 2:https://youtu.be/iMcFAHH2crQ Episode 3:https://youtu.be/rBDl6A2tmtI Episode 4:https://youtu.be/_GUBzpnDnSs Module 20 -- Cryptography Episode 1 :https://youtu.be/XtOfZeGPpI4 Episode 2:https://youtu.be/fIUPDQayzIk Episode 3:https://youtu.be/ONNqYcQ7aoA Episode 4:https://youtu.be/VRxGgX4Tcbg Hacking Attacks Brute Force Attack:https://youtu.be/K9erLCRxfZ8 SQL Injection Attack:https://youtu.be/1-pcVWOT55E HackTalks:https://youtu.be/8NIT__pKFi8 ------------------------------------------------------------ Follow on Facebook:https://www.facebook.com/EthicalSharmaji ----------------------------------------------------------- About: Ethical Sharmaji is a youtube channel for all those who want all ethical hacking stuff in one place. Videos are uploaded in Hindi language and in a manner which is easy to understand. As IBM rightly says that "CyberSecurity is a Gold Mine for jobs in India", so the goal of this channel is to provide knowledge to those who want to work in this field. ------------------------------------------------------------ For any queries feel free to comment or send a mail on [email protected] ------------------------------------------------------------ #PKISystem #CryptographyAttacks #EthicalSharmaji
Views: 155 Ethical Sharmaji
Learn how your organization can benefit from a digital signature solution. -- Perficient’s life sciences practice once had a manual, time-consuming and expensive process for signing and collecting validation documents. From handwritten signatures to scanning and shipping documents all over the globe, it was only a matter of time before we made the move to 21 CFR Part 11-compliant digital signatures. Michelle Engler, an expert in the development of clinical applications, discussed our experience implementing a digital signature solution and how your organization can benefit from one too. During the presentation, we covered: -- Cost-benefit analysis -- Solution selection and implementation -- 21 CFR Part 11 system validation -- Lessons learned To view this webinar in its entirety, please visit: http://www.perficient.com/Thought-Leadership/On-Demand-Webinars/2014/Implementing-Digital-Signatures-in-an-FDA-Regulated-Environment Stay on top of Life Sciences technologies by following us here: Blog: http://blogs.perficient.com/lifesciences Twitter: http://www.twitter.com/Perficient_LS Facebook: http://www.facebook.com/Perficient LinkedIn: http://www.linkedin.com/company/165444 Google+: https://plus.google.com/+Perficient SlideShare: http://www.slideshare.net/PerficientInc
Views: 693 Perficient, Inc.
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: 531957 itfreetraining
CRYPTOGRAPHIC ALGORITHMS 1.ENCRYPTION ALGORITHMS 2.AUTHENTICATION ALGORITHMS 3.DIGITAL SIGNATURE ALGORITHMS.
Views: 8810 Sundeep Saradhi Kanthety
Description: You can understand this video much better if you watch the earlier videos. You can click on the playlist below to watch them - https://www.youtube.com/watch?v=BulDzVhV1hE&list=PLGCQf72zvQXmr3nv0IcwLQKi0VmcwkWZj In this video I explain about what is Cryptography, what is encryption and decryption, what is Caesar’s Cypher, Cypher text, what is a key, what is 10 digit encryption, why is 256 bit encryption used, what is symmetric and Asymmetric encryption, what is the difference between symmetric and asymmetric encryption, what are public and private keys, what is digital signature, what is hashing, what is the difference between hashing and encryption, what is SHA256, how SHA256 works, what is speciality of hashing, why bitcoin address is smaller than SHA256 hash, how encryption, digital signatures and hashing are used in Bitcoin network etc. These basics will lay a very strong foundation in understanding Bitcoin and other Cryptocurrencies moving forward. Telugu Description: ee video choosey mundu intaka mundu chesina videos kuda choodandi. endukantey avi ardham aite ee video inka baga ardham ayye chance vuntundi. paina aa links kuda share chesanu. Eee video lo nenu meeku Cryptography ante enti, encryption ante enti, decryption ante enti, Caesar’s Cypher ante enti, Key ante enti, 10 digit encryption ante enti, 256bit encryption ante enti, symmetric and asymmetric encryption ante enti, aa renditiki teda enti, public key ante enti, private key ante enti, digital signature ante enti, hashing ante enti, hashing ki encryption ki teda enti, SHA256 ante enti, SHA256 ela pani chestundi, hashing yokka pratyekata enti, bitcoin address SHA256 hash kante chinnaga yenduku vuntundi, encryption, digital signatures and hashing ni Bitcoin network lo ela vadataru ila Cryptography ki sambandinchina basics anni vivarinchanu. Ee basics meeku mundu mundu Bitcoin mariyu migata Cryptocurrencies baga ardham avvadaniki upayogapadatayi.
Views: 101 Crypto Kalasala
John Wagnon discusses the basics and benefits of Elliptic Curve Cryptography (ECC) in this episode of Lightboard Lessons. Check out this article on DevCentral that explains ECC encryption in more detail: https://devcentral.f5.com/articles/real-cryptography-has-curves-making-the-case-for-ecc-20832
Views: 181552 F5 DevCentral
Most often we find technology enthusiast talking about cybercrime and cybersecurity but what we do not hear from them is the way how cybersecurity operates . This is where CRYPTOGRAPHY comes into play. In our interactive video, we have tried to explain the need of effective cybersecurity management techniques at educational institution and have tried to bring out the essence and need of CRYPTOGRAPHY.
Views: 396 Aashutosh Mishra
Want even more content? Check out the full course that extends this blockchain project with an entire CRYPTOCURRENCY. It has transactions, wallets, public-private key authentication, plenty of presentations, and more: For anyone coming from Youtube, I’m offering the course at its full discount https://www.udemy.com/build-blockchain/?couponCode=BLOCKCHAINPRO The full code for the project is located here: https://github.com/15Dkatz/sf-chain-guides *** Excerpts from the Course Description *** The blockchain is a revolutionary technology that allows for the secure, distributed, decentralized storage of information. Over the past few years, the blockchain has taken the engineering landscape by storm. Many people in the industry predict that the blockchain will disrupt the ways we interact with technology on the same way the Internet did in the early 2000s. The industry is starving for people who understand, and even better, can build blockchains. The supply is low, but the demand is high. So having a blockchain project under your belt will open doors and jobs for you. Some of the main course highlights: - Build a Blockchain in the object-oriented programming style. - Generate hashes for blocks in the chain. - Unit Test Components of the Blockchain. - Create an API around the Blockchain. - Create a real-time connected peer-to-peer server. - Implement a proof-of-work algorithm. - Sign Transactions with cryptography and digital signature. - Create a Transaction Pool for a real-time list of incoming data. - Include transactions in core blocks of the chain. *** *New videos for this project will be released to YouTube a weekly basis, ~5 videos at a time.
Views: 386 David Joseph K
Mine Bitcoin with your PC in just a few clicks! Easily earn Bitcoin! Free Bitcoin just for signing up: http://bit.ly/STARTMININGNOW Ready to buy some Bitcoin!? (You can buy fractions of coins!) Use this link and get $10 worth of Bitcoin for FREE: http://bit.ly/freebitcoinfromCLIPKING Ready to start day trading crypto!? Click here to get started on Binance: http://bit.ly/FreeTradesFromClipKing If you enjoy these clips please consider supporting our channel: Bitcoin: 1PGVwpRDCH3g3w3EuHxzP1wKsySRhQHu1k Litecoin: LLXCRWp2iRSSHShbevc4CYFGfnaFjRZTCN Ethereum: 0xA6b65AfeF756eCC18acFA6D26116D7424E01D821 Want your content distributed to hundreds of thousands of viewers on this channel? Contact us today: AllHailTheClipKing at gmail.com
Views: 391 Clip King
What protocol is used between a web server and its clients to establish trust? How do they negotiate and share the secret key? During the handshake process, how public key encryption algorithm is used and how private key encryption is used? In this video, you would find all these answers. Playlist: Advanced Cryptography - https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7 Playlist: Basic Cryptography https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV Please subscribe to my channel! Please leave comments or questions! Many thanks, Sunny Classroom
Views: 110901 Sunny Classroom
Ivan On Tech Academy $1 Trial ▶︎ https://academy.ivanontech.com/ryan Bitcoin and cryptocurrency expert Ivan On Tech answers a handful of questions asked by viewers like you! He will be sharing his predictions for 2019 and 2020. ⭐ Learn More About Ivan On Tech! ⭐ YouTube ▶︎ https://www.youtube.com/user/LiljeqvistIvan Instagram ▶︎ https://www.instagram.com/ivanontech Facebook ▶︎ https://www.facebook.com/ivanontech/ Ivan On Tech Academy ▶︎ https://academy.ivanontech.com/ryan FREE 5 Step Money Making Blueprint: http://www.ryanoscribner.com/start Follow Me On Instagram: @ryanscribnerofficial _______ Ready To Start Making Money Online? 🙌💸 FREE 5 Step Money Making Blueprint ▶︎ http://www.ryanoscribner.com/start My 7 Online Business Secrets For 2019 ▶︎ https://www.ryanoscribner.com/7-secrets FREE Affiliate Marketing Course ▶︎ http://www.ryanoscribner.com/free Steal My Business Model ▶︎ http://www.ryanoscribner.com/invest Affiliate Marketing Facebook Group ▶︎ http://www.ryanoscribner.com/facebook-group ___ Ready To Start Investing? 🤔💸 WEBULL: "Get a FREE STOCK just for signing up!" 💰 http://ryanoscribner.com/webull BETTERMENT: "Passive investing, they manage everything for you." 📈 http://ryanoscribner.com/betterment FUNDRISE: "Passive real estate investing, 8 to 11% returns." 🏠 http://ryanoscribner.com/fundrise M1 FINANCE: "Invest in partial shares of stocks like Amazon." 📌 http://ryanoscribner.com/m1-finance LENDING CLUB: "Become the bank and make interest on loans." 🏦 http://ryanoscribner.com/lending-club COINBASE: "Get $10 in free Bitcoin (when you fund $100)." ⭐ http://ryanoscribner.com/coinbase MY INVESTING BLOG: “Learn how to invest today.” 📊 https://investingsimple.blog/ ___ Ready To Keep Learning? 🤔📚 Learn A New HIGH INCOME Skill 💰 http://www.ryanoscribner.com/skill My Favorite Personal Finance Book 📘 https://amzn.to/2NiyDiz My Favorite Investing Book 📗 https://amzn.to/2KEyd7D My 2nd Favorite Investing Book 📗 https://amzn.to/2tZmxBU My Favorite Personal Development Book 📕 https://amzn.to/2KJKgRn Not a fan of reading? Join Audible and get two free audio books! ❌📚 http://ryanoscribner.com/audible ___ DISCLAIMER: Ryan Scribner, including but not limited to any guests appearing in his videos, are not financial/investment advisors, brokers, or dealers. They are solely sharing their personal experience and opinions; therefore, all strategies, tips, suggestions, and recommendations shared are solely for entertainment purposes. There are financial risks associated with investing, and Ryan Scribner’s results are not typical; therefore, do not act or refrain from acting based on any information conveyed in this video, webpage, and/or external hyperlinks. For investment advice please seek the counsel of a financial/investment advisor(s); and conduct your own due diligence. AFFILIATE DISCLOSURE: Some of the links on this webpage are affiliate links, meaning, at no additional cost to you, we may earn a commission if you click through and make a purchase and/or subscribe. However, this does not impact our opinions and comparisons. HOLDINGS DISCLOSURE: Ryan Scribner holds the following stocks: General Electric (GE), Alibaba (BABA), JD(.)com (JD), Facebook (FB), Apple (AAPL) and National Grid (NGG). While reasonable steps are taken to keep this information updated, this list may not be the most current.
Views: 31073 Ryan Scribner
Say hello to the decentralized economy -- the blockchain is about to change everything. In this lucid explainer of the complex (and confusing) technology, Bettina Warburg describes how the blockchain will eliminate the need for centralized institutions like banks or governments to facilitate trade, evolving age-old models of commerce and finance into something far more interesting: a distributed, transparent, autonomous system for exchanging value. TEDTalks is a daily video podcast of 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 much more. Find closed captions and translated subtitles in many languages at http://www.ted.com/translate Follow TED news on Twitter: http://www.twitter.com/tednews Like TED on Facebook: https://www.facebook.com/TED Subscribe to our channel: http://www.youtube.com/user/TEDtalksDirector
Views: 1555499 TED
#StudyIQ Pendrive Courses for Various Govt. Exams, Click here http://bit.ly/2QcdLOd to know in detail OR Call 95-8004-8004 UPSC/CSE - This is our Flagship & Most Selling Course. This course covered Length & Breadth of UPSC vast syllabus and made by Elite & Very best faculties from all over India with StudyIQ Trust. Click here http://bit.ly/2QbHfM7 to watch Demo Videos, Course Content, Authors, Etc. SSC & Bank - This is our oldest Course, made by Founders of StudyIQ. 1000+ videos so far and new videos added every week. Click here http://bit.ly/2QaG3ZE to know more. UPSC Optionals - We have covered almost all major UPSC Optionals. Click here http://bit.ly/2QqTKUU to find yours State Exams PSCs - Currently we have 18 States covered, More to come, Choose your state. Click http://bit.ly/2Qgv6G0 to watch demo videos, know about authors and all. Defense Exams - CDS, NDA, CAPF, SSB, AFCAT, Airforce. Click here http://bit.ly/2zT8MbP to get into the Army, Navy or Airforce SSC JE Exams - Civil, Mechanical, Electrical, Electronics. Click here http://bit.ly/2G8eDQ0 to know more RBI Grade B - Grade B is the most popular Job after IAS. This course made by well-experienced faculties of Study IQ. Click here http://bit.ly/2DAtlwm to watch demo videos, Authors, Course content. NTA NET - Start your preparation for UGC(NTA) NET prestigious exam. We have courses for both Paper 1 & 2. Click here http://bit.ly/2HnhFNQ to check UPSC Prelim Test Series - Our flagship test series for UPSC Prelims. More than 60% Sucess rate in 2018. Click here http://bit.ly/2Ea4Rtx to enroll right now DMRC Exams - Courses for Delhi Metro Technical & Non-Technical Exams. Click here http://bit.ly/2Q4cFS8 to know more Insurance Exams - LIC, NICL, and other insurance exams. Click here http://bit.ly/2VpbXjE to know more Law Exams - Find courses for Undergraduate and Judiciary Exams. Click here http://bit.ly/2Jk4G31 to check Railway Jobs - More than 1.5 Lac jobs to come this year. Start your preparation with us for Tech or Non-Tech posts. Click here http://bit.ly/2Ti5NB6 to check the available courses Teaching Jobs - CTET, DSSSB. Click here http://bit.ly/30oBgWP to know more NABARD Grade A - https://goo.gl/C6CzAL Have a doubt? Click here http://bit.ly/2qWhdOI to start instant Chat with our Sale team or you can #Call_9580048004 _ Click here http://bit.ly/2V5GN0h to Sponsor Study IQ UPSCIQ Magazine - http://bit.ly/2DH1ZWq || Bank IQ Magazine - http://bit.ly/2QxyNmJ Daily Current Affairs - http://bit.ly/2VDIuT0 Follow us on Instagram - http://bit.ly/2K0uXEH Download All Videos PDFs - https://goo.gl/X8UMwF || Join StudyIQ on Telegram - https://goo.gl/xBR3g8 Monthly Current Affairs - http://bit.ly/2UAXktE Topic Wise Current Affairs - http://bit.ly/2VHxiZw Free PDFs - https://goo.gl/cJufZc || Free Quiz - https://goo.gl/wCxZsy || Free Video Courses - https://goo.gl/jtMKP9" Follow us on Facebook - https://goo.gl/iAhPDJ Telegram - https://t.me/Studyiqeducation The Hindu Editorial Analysis - https://goo.gl/vmvHjG Current Affairs by Dr Gaurav Garg - https://goo.gl/bqfkXe UPSC/IAS Burning Issues analysis- https://goo.gl/2NG7vP World History for UPSC - https://goo.gl/J7DLXv Indian History - https://goo.gl/kVwB79 Follow us on Facebook - https://goo.gl/iAhPDJ Follow Dr Gaurav Garg on Facebook - https://goo.gl/xqLaQm UPSC/IAS past papers questions - https://goo.gl/F5gyWH SSC CGL + IBPS Quantitative tricks - https://goo.gl/C6d9n8 English Vocabulary - https://goo.gl/G9e04H Reasoning tricks for Bank PO + SSC CGL- https://goo.gl/a68WRN Error spotting / Sentence correction https://goo.gl/6RbdjC Static GK complete- https://goo.gl/kB0uAo Complete GK + Current Affairs for all exams- https://goo.gl/MKEoLy World History - UPSC / IAS - https://goo.gl/kwU9jC Learn English for SSC CGL, Bank PO https://goo.gl/MoL2it Science and Technology for UPSC/IAS - https://goo.gl/Jm4h8j Philosophy for UPSC/IAS - https://goo.gl/FH9p3n Yojana Magazine analysis -https://goo.gl/8oK1gy History for SSC CGL + Railways NTPC - https://goo.gl/7939eV
Views: 15889 Study IQ education
The complete YouTube playlist can be viewed here: https://goo.gl/mjyDev This lesson explains the concept of Digital Signature Algorithm(DSA), under the course, "Cryptography and Network Security for GATE Computer Science Engineering". In this video, Ansha explains few GATE questions relating Digital Signature with precise explanation and understandable solutions. Some important terminology and concepts are also illustrated, for the better understanding of the subject. For the entire course: https://goo.gl/aTMBNZ For more lessons by Ansha Pk: https://goo.gl/2DX9Wn Must watch for all the GATE/ESE/PSU Exams. 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 Visit Our Facebook Group on GATE here: https://goo.gl/cPj5sb Cryptography and Network Security - Gate Questions on Digital Signature - GATE Computer Science- GATE(CSE)
Views: 3013 Unacademy - GATE Preparation
Coverage: Digital Signature Certificate and Its Life Cycle. Issuance Process, Revocation, Type of Certificates, CRL, OCSP Date: 27th November 2015 Speaker: Anoop Kumar Pandey Venue: C-DAC Noida
Views: 59 Anoop Kumar Pandey
Security+ Training Course Index: http://professormesser.link/sy0501 Professor Messer’s Course Notes: http://professormesser.link/sy0501cn Frequently Asked Questions: http://professormesser.link/faq Download entire video course: http://professormesser.link/501adyt Get the course on MP3 audio: http://professormesser.link/501vdyt Subscribe to get the latest videos: http://professormesser.link/yt Calendar of live events: http://www.professormesser.com/calendar/ 0:06 - Pre-Show 10:00 - Start Time 11:33 - Announcements 14:39 - CompTIA Objectives 16:43 - Socrative 17:40 - Sample Question 19:04 - Answer 22:30 - Question 1 (Performance-Based) 27:42 - Answer 29:21 - Question 2 31:55 - Answer 35:32 - Question 3 37:32 - Answer 42:17 - Question 4 47:08 - Answer 48:08 - Question 5 56:14 - Answer 58:05 - Question 6 1:05:00 - Answer 1:07:32 - Question 7 1:13:13 - Answer 1:13:50 - CompTIA Objectives 1:15:00 - Calendar 1:16:55 - After Show 1:22:40 - Chat Room How does one renew the CompTIA A+, Network+ or Security+ certifications? 1:23:40 - Caller #1 Do you happen to know how many people have a Security+ certification? 1:26:55 - Is it possible to catch an attack on an operating system with a hashing process to find out if any of the software has been compromised on a day to basis? 1:29:10 - Are you familiar with the Netflix show Pine Gap? 1:33:05 - Caller #2 Is it possible to simulate a bad situation on ones system to test the defense against security attacks? Also, would using a Linux operating system protect one from many of these security attacks? 1:38:43 - What is your opinion on Microsoft ending support for Windows 7 by the end of 2020? 1:44:11 - Caller #3 Can you explain how the content for Security+ certification will apply to finding a job in the IT Security industry? 1:59:33 - Caller #4 Do you have any advice on building a computer home lab? 2:05:15 - Do you have a compilation of skills for the lab that would be necessary to learn for the Security+ certification exam? 2:07:03 - After passing the Security+ exam, do you have any suggestions on additional steps to take to get a job in IT Security? 2:11:33 - Caller #5 What avenues can one take to get a discount towards taking the CompTIA A+ certification exam? 2:15:03 - Do you recommend studying for the Cisco CCNA and the CompTIA A+ certification exams at the same time? 2:17:50 - Caller #6 A caller has been taking practice exams for the Network+ certification. What are the modern best practices for securing VLANs that are either on their own or trunked together? 2:24:20 - Caller #7 Do you have any suggestions to help one focus on studying for the ICND1certification exam? 2:29:15 - Any job suggestions on what steps to take to find an entry level IT position to gain experience that would move one towards a networking career? 2:34:40 - In your opinion what is the best IT certification to receive? 2:40:35 - Chat Room Any tips for getting into IT Security? FOLLOW PROFESSOR MESSER: Professor Messer official website: http://www.professormesser.com/ Twitter: http://www.professormesser.com/twitter Facebook: http://www.professormesser.com/facebook Instagram: http://www.professormesser.com/instagram Google +: http://www.professormesser.com/googleplus
Views: 22585 Professor Messer
Views: 40634 Lisk
what are in these video : Common security threats : Cryptography concepts : digital signatures ==================== 27- CCNA Security 210-260 : Cryptography concepts (Public key infrastructure )| Arabic Darija ==================== linkedin :https://www.linkedin.com/in/yassirelghazy13/ Facebook : https://www.facebook.com/itup2youofficial My Facebook groups : IT jobs in morocco new jobs & vacancies : https://www.facebook.com/groups/286808315265475/ Arabic Cloud Computing Community | Azure |AWS|Openstack : https://www.facebook.com/groups/485166281985573/
Views: 62 YASSIR EL GHAZY
eSign Electronic Signature Service is an innovative initiative for allowing easy, efficient, and secure signing of electronic documents by authenticating signer using Aadhaar eKYC services. With this service, any Aadhaar holder can digitally sign an electronic document without having to obtain a physical digital signature dongle.
Views: 60578 Digital India
Ever received an email from…. Donal Trump or Christiano Ronaldo or Tom Cruise or some famous personality like that? Well, if you did receive such email, then its probably not from the person you think it can from. I’m not trying to offend you but common how Donald Trump doesn’t even know that you and me even exist. I’m from India BTW. So obviously the email is not from Donal Trump, it is from a fake sender like a spammer or your friend whose only job is to try to fool you in some or the other way.Anyways but how did the fake sender send the email from Donald Trump? OMG did he hack Donald trump’s Email? OF COURSE NOT. What he did is just modify the email header, and replaced his email address with Donald Trumps email address. Well, I’ll explain. Firstly, we call this Email Forging or Email Spoofing where a person can pretend to be some other person and send you an email. In simple words, a spammer can you send you an email from your friend’s email address and all this without gaining access to your friends email account. Let me explain how the spammer does this. Email works on SMTP which stands from Simple Mail Transfer Protocol. Let’s learn how the SMTP works. When you are writing an email, you put in the subject, the message, any attachments and the recipIent’s mail ID. BTW, A recipIent is the one who you want to send the email. Once you click on send, the client which in my case is GMAIL is going to forward this email to the smtp server of Gmail. And obviously the email that you are sending needs to be converted to a particular format so that the SMTP server can understand where to forward this email. So the email is converted into a header which looks something like this. Once the SMTP server receives the email header, it forwards this header to the respective SMTP server of the receiver. For example if the receiver’s email ID is a hotmail ID, then the SMTP server of gmail is going to forward this header to the smtp server of hotmail. Once the header is received by the receiver’s SMTP server, It is again forwarded to the POP3 server of the receiver. POP3 stands for Post Office Protocol and 3 here is the version number. POP3 servers receive emails from the SMTP servers and store them until needed. So when the receiver opens his email client, ie., when he opens his hotmail account, his client is going to pull all the unread emails from the POP3 server. And if you can remember, the email that we sent has reached the POP3 server of the receiver and is stored there. So, the receiver will now retrieve the email that we sent. So this is how email works in a nutshell. But, if you can look closely here at the Email header you can notice that there is no authenticity. Which means there is no factor to ensure that the email is coming from a valid sender. You can see that there is a from: line which holds the email ID of the sender. We can simply replace this From: line and insert any email ID we wish. And as I said earlier there is no factor to ensure that the email is truly coming from that particular sender. Like, for example if at all the email header also consist the password of the sender, then we can be sure that the sender is actually the sender if the password is correct, but if the password is included in the header, then the receiver will also get to know the password of the sender by just looking at the email header. SO obviously we cannot include the password in the email header. So, this means that anyone can simply tamper the email header and insert any email address in the From: line. And thus, they can pretend to be someone else. Obviously, this is a big threat because SMTP lacks authenticity. So, some extra security standards are added. The From field of the Email is now digitally signed and this digital signature is added to the email header when the email is sent from the sender’s side. When received by the receiver, if the digital signature is valid, it means that no data inside the email header is tampered and hence the email is authentic and the sender is really the sender. If the digital signature is not valid, then the email ends up in your spam folder. This is known as DKIM. DKIM uses cryptographic functions to achieve this authenticity. We will learn about these cryptographic functions in some other video. Visit my website : https://techraj156.com Like my Facebook Page : https://fb.com/techraj156 Follow me on Instagram : https://instagram.com/teja.techraj Follow on Twitter : https://twitter.com/techraj156 For written tutorials, visit my blog : http://blog.techraj156.com SUBSCRIBE for more videos! Thanks for watching! Cheers!
Views: 71768 Tech Raj
Introduction to Cryptography Training Course Description – The TONEX cryptography training course introduces you to a variety of topics in cryptography such as: Information security and cryptography, stream and block ciphers, symmetric and asymmetric encryption, public key infrastructure (PKI) encryption, public key encryption, hash functions, digital signatures, and digital certificates. Cryptography is simply expressed as having the concept in a secret code. Such a definition will help the computer security to preserve the authentication, privacy, integrity and confidentiality of data. By taking the TONEX cryptography training, you will understand the main concept of cryptography, classification of ciphers, Stream ciphers, clock control generators, filter generators and combination generators. Moreover, you will learn about block ciphers, their modes of operation and advanced encryption standards (AES). Audience: The cryptography training is a 2-day course designed for: All individuals who need to understand the concept of cryptography. IT professionals in the areas of software security and cryptography Cyber security professionals, network engineers, security analysts, policy analysts Security operation personnel, network administrators, system integrators and security consultants Security traders to understand the software security of web system, mobile devices, or other devices. Investors and contractors who plan to make investments in security system industry. Technicians, operators, and maintenance personnel who are or will be working on cyber security projects Managers, accountants, and executives of cyber security industry. If you are an IT professional who specialize in system security, you will benefit the presentations, examples, case studies, discussions, and individual activities upon the completion of Cryptography training and will prepare yourself for your career. Training Outline: The cryptography training course consists of the following lessons, which can be revised and tailored to the client’s need: Introduction to Cryptography Stream Ciphers Block Ciphers Symmetric (Private Key) Encryption Asymmetric Encryption Main Aspects of Cryptography: PKI and Encryption Public Key Encryption Hash Functions and Data Integrity Digital Signature GPG Digital Certificate Cryptographic Threats and Tools Hands-on and In-Class Activities Sample Workshops Labs for Cryptography Training Learn more Introduction to Cryptography Training – Level 1 https://www.tonex.com/training-courses/cryptography-training/
Views: 5 bryan len
What is FINANCIAL CRYPTOGRAPHY? What does FINANCIAL CRYPTOGRAPHY mean? FINANCIAL CRYPTOGRAPHY meaning - FINANCIAL CRYPTOGRAPHY definition - FINANCIAL CRYPTOGRAPHY 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 Financial cryptography (FC) is the use of cryptography in applications in which financial loss could result from subversion of the message system. Financial cryptography is distinguished from traditional cryptography in that for most of recorded history, cryptography has been used almost entirely for military and diplomatic purposes. Financial cryptography includes the mechanisms and algorithms necessary for the protection of financial transfers, in addition to the creation of new forms of money. Proof of work and various auction protocols fall under the umbrella of Financial Cryptography. Hashcash is being used to limit spam. Financial cryptography has been seen to have a very broad scope of application. Ian Grigg sees financial cryptography in seven layers, being the combination of seven distinct disciplines: cryptography, software engineering, rights, accounting, governance, value, and financial applications. Business failures can often be traced to the absence of one or more of these disciplines, or to poor application of them. This views Financial Cryptography as an appropriately cross-discipline subject. Indeed, inevitably so, given that finance and cryptography are each built upon multiple disciplines. Cryptographers think of the field as originating in the work of Dr David Chaum who invented the blinded signature. This special form of a cryptographic signature permitted a virtual coin to be signed without the signer seeing the actual coin, and permitted a form of digital token money that offered untraceability. This form is sometimes known as Digital currency. A system that was widely used during the 1970s-1990s and previously developed cryptographic mechanism is the Data Encryption Standard, which was used primarily for the protection of electronic funds transfers. However, it was the work of David Chaum that excited the cryptography community about the potential of encrypted messages as actual financial instruments. As part of a business model, Financial Cryptography followed the guide of cryptography and only the simplest ideas were adopted. Account money systems protected by SSL such as PayPal and e-gold were relatively successful, but more innovative mechanisms, including blinded token money, were not. Financial cryptography is to some extent organized around the annual meeting of the International Financial Cryptography Association, which is held each year in a different location.
Views: 114 The Audiopedia
This course provides step-by-step demonstrations of the different methods and tools needed to master the exam, as well as the concepts and knowledge a professional ethical hacker needs for the real world. The course covers all areas tested on the exam, including system hacking, network attacks, web application hacking, and cryptography. Parts: 1. Cryptography Intro (0:00) 2. Algorithms and Keys (5:35) 3. CrypToolDemo (11:43) 4. Types of Encryption (17:52) 5. Encryption Algorithms (23:43) 6. Hashing (30:15) 7. Hashing Tools (35:27) 8. PKI pt. 1 (41:41) 9. PKI pt. 2 (47:35) 10. Digital Signatures (53:49) 11. File Encryption (58:30) 12. Disk Encryption (1:04:59) 13. Cryptography Attacks pt. 1 (1:10:38) 14. Cryptography Attacks pt. 2 (1:16:56)
Views: 1273 Free Training
Signature automation tools are making an impact on the legal industry, enabling lawyers and other legal professionals to skip the time-consuming process of reverting otherwise automated processes back to paper merely for the sake of obtaining signatures. But without an understanding of the technology behind automated signing solutions and the regulations pertaining to them, your firm could be left vulnerable. In other words, not all automated signature solutions are created equal. This webinar includes a discussion surrounding digital signature technology and the ways digital signatures differ from electronic alternatives. We'll also explore the impact of signature-dependent processes on day-to-day operations, the use of digital signature technology for enhancing security and information governance, and more.
Views: 298 CoSign by ARX is now DocuSign
Data Encryption and Decryption. Encryption is the process of translating plain text data (plaintext) into something that appears to be random and meaningless (ciphertext). Decryption is the process of converting ciphertext back to plaintext. To encrypt more than a small amount of data, symmetric encryption is used. Videos in Tamil https://goo.gl/2sUk1B Videos in English https://goo.gl/TZdAvK YouTube channel link www.youtube.com/atozknowledgevideos Website http://atozknowledge.com/ Technology in Tamil & English
Views: 3595 atoz knowledge
Strip away the trimmings of a traditional science presentation, add cocktails, and you have WSF Spotlight. How much of your information would you rather stay hidden from public view? Using a hypothetical scenario, and with the help of her two daughters, Tal Rabin describes a world without cryptography, where our online interactions are available to anybody with the desire to look. Original Program Date: June 2, 2011 The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future. Subscribe to our YouTube Channel for all the latest from WSF. Visit our Website: http://www.worldsciencefestival.com/ Like us on Facebook: https://www.facebook.com/worldsciencefestival Follow us on twitter: https://twitter.com/WorldSciFest
Views: 1929 World Science Festival
Views: 196 Blockchain Zoo
If Fiat markets collapsed how could Ripple & XRP help in this environment - FOOD FOR THOUGHT AND NOT INVESTMENT ADVICE
Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 1 - Basic Cryptography In this module we learn the basic concepts and principles of crytography, introduce the basic concept of cryptoanalysis using mono-alphabetic substitution cipher as an example, and discuss the one-time-pad and quantum key distribution concepts. Learning Objectives • Compose secure program with Crypto API for encryption, authentication, and integrity checking • Understand terminologies of basic cryptography • Understand Kerchhoff Principle • Apply cryptoanalysis techniques on mono-alphabetic ciphers • Explain why one time pad is strongest and understand how quantum key can be distributed
Views: 172 intrigano