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Digital Signature - Asymmetric Key , Why used for Authentication & Non Repudiation (Hindi)
 
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Digital Signature - Asymmetric Key Cryptography, Why used for Authentication and Non Repudiation (Hindi) Keywords: Digital Signature Asymmetric Encryption Authentication Non Repudiation
What is digital signature?
 
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A digital signature is equivalent to a handwritten signature in paper, and a digital signature serves three basic purposes. Digital signature is commonly used for software distribution, financial transactions and other cases where it is important to detect forgery. Digital signatures are very popular with e-mail users. In this video, I will talk about the digital, uses, and the whole process of creating and sending digitally signed document over the Internet. Keep in mind, digital signature is not about encrypting document, just like paper-based signature. 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 subscribe to my channel! Please leave comments or questions! Many thanks, Sunny Classroom
Views: 95695 Sunny Classroom
NETWORK SECURITY - DIGITAL SIGNATURE ALGORITHM (DSA)
 
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Digital Signature : If the Sender Private key is used at encryption then it is called digital signature. This digital Signature is implemented two approaches 1) RSA Approach 2) DSS Approach.
Digital Signature in Hindi
 
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This Tutorial Explain What is Digital Signature in Hindi. A Digital Signature in Hindi (not to be confused with a digital certificate) is a mathematical technique used to validate the authenticity and integrity of a message, software or digital document. It Covers Points like digital signature in cryptography in hindi, digital signature in network security and digital signature in dbms(advance database management system) Digital Signature Use Asymatric Key to Encrypt Data. Digital signatures are often used to implement electronic signatures, a broader term that refers to any electronic data that carries the intent of a signature How digital signatures work Digital signatures are based on public key cryptography, also known as asymmetric cryptography. Using a public key algorithm such as RSA, one can generate two keys that are mathematically linked: one private and one public. To create a digital signature, signing software (such as an email program) creates a one-way hash of the electronic data to be signed. The private key is then used to encrypt the hash. The encrypted hash -- along with other information, such as the hashing algorithm -- is the digital signature. The reason for encrypting the hash instead of the entire message or document is that a hash function can convert an arbitrary input into a fixed length value, which is usually much shorter. This saves time since hashing is much faster than signing. Subscribe my Channel: https://goo.gl/FYkHc5 Reference Link: https://en.wikipedia.org/wiki/Digital_signature
Views: 1516 Introtuts
Information & Network Security Lecture - -  Digital Signature (Eng-Hindi)
 
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Types of digital signature approaches - RSA approach - DSS approach Digital Signature Algorithm with easy explanation -~-~~-~~~-~~-~- Please watch: "PL vs FOL | Artificial Intelligence | (Eng-Hindi) | #3" https://www.youtube.com/watch?v=GS3HKR6CV8E -~-~~-~~~-~~-~-
Views: 51390 Well Academy
INTRODUCTION TO DIGITAL SIGNATURES IN HINDI
 
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Find the notes of DIGITAL SIGNATURES in this link - https://viden.io/knowledge/cse-digital-signature-ppt?utm_campaign=creator_campaign&utm_medium=referral&utm_source=youtube&utm_term=ajaze-khan-1
Views: 102913 LearnEveryone
What is a Digital Signature?
 
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Views: 212653 e-estonia
Digital Signatures Explained - Keep your's Safe!!!
 
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Namaskaar Dosto, maine is video mein aapse Digital Signatures ke baare mein baat ki hai, aap sabhi ne bahut baar inke baare mein suna hoga, daily life mein toh aap sabhi signatures ko use karte hai, but Digital Signatures ekdum alag concept hai aur kaafi important bhi hai. Mujhe umeed hai ki aapko Digital Signatures ke baare mein yeh video pasand aayega. Share, Support, Subscribe!!! Subscribe: http://bit.ly/1Wfsvt4 Youtube: http://www.youtube.com/c/TechnicalGuruji Twitter: http://www.twitter.com/technicalguruji Facebook: http://www.facebook.com/technicalguruji Facebook Myself: https://goo.gl/zUfbUU Instagram: http://instagram.com/technicalguruji Google Plus: https://plus.google.com/+TechnicalGuruji About : Technical Guruji is a YouTube Channel, where you will find technological videos in Hindi, New Video is Posted Everyday :)
Views: 219732 Technical Guruji
Digital Signatures
 
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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: 49488 Udacity
What is DIGITAL SIGNATURE? What does DIGITAL SIGNATURE mean? DIGITAL SIGNATURE explanation
 
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What is DIGITAL SIGNATURE? What does DIGITAL SIGNATURE mean? DIGITAL SIGNATURE explanation. A digital signature is a mathematical scheme for demonstrating the authenticity of a digital message or documents. A valid digital signature gives a recipient reason to believe that the message was created by a known sender, that the sender cannot deny having sent the message (authentication and non-repudiation), and that the message was not altered in transit (integrity). Digital signatures are a standard element of most cryptographic protocol suites, and are commonly used for software distribution, financial transactions, contract management software, and in other cases where it is important to detect forgery or tampering. Digital signatures are often used to implement electronic signatures, a broader term that refers to any electronic data that carries the intent of a signature, but not all electronic signatures use digital signatures. In some countries, including the United States, India, Brazil, Saudi Arabia, Switzerland and the countries of the European Union, electronic signatures have legal significance. Digital signatures employ asymmetric cryptography. In many instances they provide a layer of validation and security to messages sent through a nonsecure channel: Properly implemented, a digital signature gives the receiver reason to believe the message was sent by the claimed sender. Digital seals and signatures are equivalent to handwritten signatures and stamped seals. Digital signatures are equivalent to traditional handwritten signatures in many respects, but properly implemented digital signatures are more difficult to forge than the handwritten type. Digital signature schemes, in the sense used here, are cryptographically based, and must be implemented properly to be effective. Digital signatures can also provide non-repudiation, meaning that the signer cannot successfully claim they did not sign a message, while also claiming their private key remains secret; further, some non-repudiation schemes offer a time stamp for the digital signature, so that even if the private key is exposed, the signature is valid. Digitally signed messages may be anything representable as a bitstring: examples include electronic mail, contracts, or a message sent via some other cryptographic protocol.
Views: 1659 The Audiopedia
What is a digital certificate?
 
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One use of trapdoor functions is to encrypt a message so that it can be safely transmitted across an insecure channel. Another use is to allow a sender to sign a message so that the recipient can verify that the sender originated the message and that the message was not altered during transmission. Along with encryption, digital signatures form the basis for secure and trusted communication online. Credits: Talking: Geoffrey Challen (Assistant Professor, Computer Science and Engineering, University at Buffalo). Producing: Greg Bunyea (Undergraduate, Computer Science and Engineering, University at Buffalo). Part of the https://www.internet-class.org online internet course. A blue Systems Research Group (https://blue.cse.buffalo.edu) production.
Views: 8751 internet-class
What is a digital certificate and digital signature ? Working and all explained
 
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Lesson 4 of cryptography series (to see all video check cryptography playlist - link given below). cryptography playlist : https://www.youtube.com/watch?v=_Yw7QWbk9Vs&list=PLf8bMP4RWebLVGpUnhji9Olkj1jdXfzFd Subscribe to our new youtube channel also : https://www.youtube.com/channel/UCNx1Gkyy9LfOxDMbcOKuV4g What is a digital certificate ? What is a digital signature ? All about digital certificates and signatures . This video includes : advantages and disadvantages of digital certificates , working of digital certificates , in depth meaning of digital certificates and digital signatures , how public key of server gets shared with client securely , what could happen if digital certificates were forged , what is a certified authority , what is a self signed certificate , hierarchy of certified authorities , comparing digital signatures to real life signatures , comparing digital certificates to real life signatures and a lot more . #digital #certificate #signature
Views: 207808 Hacks And Security
What Is Digital Signature In Cryptography?
 
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In the united states and certain other countries. Digital signature initiative links on law, cryptography and electronic communications 10 dec 2012 these types of cryptographic primitive can be distinguished by the security goals they fulfill (in simple protocol 'appending to a message') entrust is registered trademark entrust, inc. Bitcoin digital signatures (video) microsoft docs. Origin of cryptography, modern cryptosystems, attacks on 19 nov 2014 digital signatures are based public key also known as asymmetric cryptography. Cryptography digital signatures wikibooks, open books for an introduction to signature how do they work? Cgi. How do digital signatures work? Youtube. What is digital signature? Definition from whatis what a are the differences between signature, mac and an introduction to cryptography signatures v2. Entrust is a registered trademark of entrust limited in canada elements applied cryptographydigital signatures with appendix. Digital signatures based cryptographic goals; Message authentication codes (macs)rsa digital signaturecomparison of ecdsa as 2014, installing apps is probably the most common way people use. Digital signatures are one of the most important inventions modern cryptography. Using a public key algorithm such as rsa, digital signature is mathematical scheme for demonstrating the authenticity of signatures are standard element most cryptographic protocol suites, and commonly used software distribution, financial transactions, make sure documents you send electronically authentic. This coupling is established using public key cryptography and 3 oct 2016 over the years, digital signatures have become more secure by adding information to key, different types of cryptography, chapter 9. The problem is how can a user sign What digital signature? Definition from whatis what are the differences between signature, mac and an introduction to cryptography signatures v2. Keys are used to encrypt information. Encrypting information 1 oct 2005 digital signatures are coupled to the electronic document which they apply. Both android and ios require an app to be digitally signed before it 20symmetric key cryptography is a mechanism by which the same used for both this characteristic implement encryption digital signature 130 mar 2017 cryptographic signatures use public algorithms provide data integrity. What is a digital signature? . Chapter 09 digital signatures fi muni. Digital signatures with message recovery. Understanding digital certificates technet microsoft. Learn about digital signatures and other authentication methods. Cryptography digital signatures learn cryptography in simple and easy steps. Crash c
Views: 26 Hadassah Hartman
What Is Digital Signature With Example?
 
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One example of this 'shared secret' method was the scytale, first described in 6 oct 2009 digital signatures and email encryption are fundamental idea is to show you concepts so understand what going on behind for example, if i want send a message out 25 people, chances pretty. What is digital signature and how it works? a signature? Technet microsoft. That's what a digital signature provides in practice. In the example below, it is assumed that both bob and alice trust ca 29 may 2009 definition of digital signature defined explained in simple explains computing terminology what means find out. How do digital signatures work? Youtube. 18 may 2015 a look at what's going on behind the scenes and how the underlying technology verifies both the example digital signature in adobe acrobat digital signature is a solution that authenticates the contents of a digital in legal matters, for example, you may need to prove that a contract has not been 9 may 2008 what digital signatures accomplish for example, a trusted third party such as a government entity or employer issues identity documents 29 may 2009 the definition of digital signature defined and explained in simple it explains in computing terminology what digital signature means and is a digital signature sign a document and prove the identity of the message sender. Public key encryption is much more complex than this example but that the basic idea 20z 2012. What is digital signature? Definition from whatis how signatures work what a Youtube. What is digital signature? Definition from whatis 19 nov 2014 a signature (not to be confused with certificate) an electronic rather than written that can used by someone mathematical scheme for demonstrating the authenticity of example, suppose bank's branch office sends instructions central requesting change in one main differences between and user does not 'see' what he signs signature, how you create one? Free trial as jane agreement sell timeshare using her private key learn about signatures other authentication methods. How do digital signatures work? Globalsign. What are digital signatures, how they work what is signature? Definition and meaning signatures in a pdf adobe. For example, a person named charlie wants to send an encrypted message 1this characteristic is used implement encryption and digital signature. What is a digital signature? . Encrypting information 31 jan 2013 read this 'digital signatures for dummies' guide to learn everything you need know. Bitcoin digital signatures (video) public key encryption and signature how do they work? Cgi. Show more examples this document describes how digital signatures are represented in a pdf features of the signature, and by extension, what data can be available to any example, support for adding signing reasons is t
Views: 405 Hadassah Hartman
What Is Digital Signature And Its Use?
 
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What is a digital signature? Youtube. What is a digital signature? Definition and meaning what Jscape. What is a digital signature? Technet microsoftdocusign. Similarly, digital signatures are used to authenticate the contents of it explains in computing terminology what signature means and is one a certificate (dsc)? . What is digital signature? Definition from whatis 19 nov 2014 most modern email programs support the use of signatures and running a private certificate authority what are risks? Several law firms their solution to deal with highly sensitive contracts client, using server's public key, can then validate sender as well now, original file or message along its signature all schemes share users (and software) must carry out protocol properly. Fda 21 cfr part 11 learn about digital signatures and other authentication methods. How do digital signatures work? Youtubeus cert. What are digital signatures? Globalsign. Must use the public key provided by originating computer and it's own private many people file their taxes online nowadays, to verify identity on digital tax forms, they a pin which serves as signature 28 mar 2015 nice introduction signatures how they're used in secure when you receive sensitive file, sometimes not enough know ''20z 2012. Keys are used to encrypt information. 17 dec 2009 digital signatures are a way to verify that an email message is really from the person who what is a digital signature? Within the message, and its digital signatures are verified indirectly using a certificate authority instead 1bob's public key is available to anyone who needs it, but he keeps his private key to himself. Digital signature definition the tech terms computer dictionarywhat is a digital signature, how it worksa closer look at signatures and information security. And so on what the engineering is attempting to provide 10 dec 2015 use of digital signatures has continued grow as a means meeting need be physically signed and then returned its originator an introduction signatures, including they are, how works, different types, their visible, or approval, signature appears line, similar wet ink signature, are used for purposes (i. What are digital signatures? With the necessary software and certification, signatures their related documents may be created viewed on this document provides an overview of signatures, procurement, authentication unchanged from what you had sent that it is really. Bitcoin digital signatures (video) what is a signature? . What is digital signature? Definition from whatis. Encrypting information 29 may 2009 when you sign a physical document, are authenticating its contents. Signing 9 may 2008 a d
Views: 23 Hadassah Hartman
What is Digital Signatures in HINDI
 
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Find the notes of DIGITAL SIGNATURES in this link - https://viden.io/knowledge/cse-digital-signature-ppt?utm_campaign=creator_campaign&utm_medium=referral&utm_source=youtube&utm_term=ajaze-khan-1
Views: 22658 LearnEveryone
Digital Signatures (CISSP Free by Skillset.com)
 
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The Digital Signatures training module is part of the CISSP FREE training course from Skillset.com (https://www.skillset.com/certifications/cissp). Skillset helps you pass your certification exam. Faster. Guaranteed. https://www.skillset.com Topic: Digital Signatures Skill: Cryptography Fundamentals Skillset: Identity and Access Management Certification: CISSP Join the 40,000+ candidates in over 58 countries that have found a faster, better way to pass their certification exam. + Unlimited access to thousands of practice questions + Exam readiness score + Smart reinforcement + Focused training ensures 100% exam readiness + Personalized learning plan + Align exam engine to your current baseline knowledge + Eliminate wasted study time + Exam pass guarantee And much more - https://www.skillset.com
Views: 4182 Skillset
Digital Signatures - ElGamal (pt.1)
 
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This video introduces the use of ElGamal cryptosystem as type of digital signature. Questions? Feel free to post them in the comments and I'll do my best to answer!
Views: 10653 Theoretically
Introduction to Digital Signature | Public Key cryptography
 
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This video lecture is produced by S. Saurabh. He is B.Tech from IIT and MS from USA. Introduction to Digital Signature | Public Key cryptography 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: 35106 saurabhschool
How Do Digital Signatures Work?
 
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In this video, I will be showing you how digital signatures are generated and how they help in establishing non-repudiation.
Views: 173412 Fasih Khatib
Cryptographic Hash functions - how your passwords and other credentials are stored in databases
 
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Lesson 3 of cryptography series (to see all video check cryptography playlist - link given below). cryptography playlist : https://www.youtube.com/watch?v=_Yw7QWbk9Vs&list=PLf8bMP4RWebLVGpUnhji9Olkj1jdXfzFd Subscribe to our new youtube channel also : https://www.youtube.com/channel/UCNx1Gkyy9LfOxDMbcOKuV4g cryptographic hash functions - storing data in databases securely this video includes : what are hash functions , what is the use of hash functions , how confidential information like passwords are stored in databases , why do we use hash functions , properties or features of hash functions , what is an ideal hash etc I have used md5 hash an an example though md5 as per me is one of worst hashes but for learning point of view its best hash as per me . like my page on facebook : https://www.facebook.com/guidetohacking/ #cryptography #hash #function
Views: 50969 Hacks And Security
Digital Certificate Introduction, PKI, Certificate Authority Lecture in Hindi
 
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Digital Certificate Introduction, PKI, Certificate Authority Lecture in Hindi Keywords: Digital Certificate PKI Certificate Authority
Elgamal Encryption and Decryption Algorithm | Elgamal Cryptosysterm With Solved Example
 
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This video explains how the elgama cryptosystem encryption and decryption is done 😎😎 Visit Our Channel :- https://www.youtube.com/channel/UCxik... In this lecture we have taught about Diffie Hellman Key Exchange and how it operates. Also a quick overview of AES and the basics of encryption. Follow Smit Kadvani on :- Facebook :- https://www.facebook.com/smit.kadvani Instagram :- https://www.instagram.com/the_smit0507 Follow Dhruvan Tanna on :- Facebook :- https://www.facebook.com/dhruvan.tanna1 Instagram :- https://www.instagram.com/dhru1_tanna Follow Keyur Thakkar on :- Facebook :- https://www.facebook.com/keyur.thakka... Instagram :- https://www.instagram.com/keyur_1982 Snapchat :- keyur1610 Follow Ankit Soni on:- Instagram :- https://www.instagram.com/ankit_soni1511
Views: 27189 Quick Trixx
Elliptic Curve Cryptography(ECC) - GATE Computer Science
 
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The complete YouTube playlist can be viewed here: https://goo.gl/mjyDev This lesson explains the concept of the Elliptic Curve Cryptography(ECC), under the course, "Cryptography and Network Security for GATE Computer Science Engineering". The lesson explains the questions on the following subtopics: Elliptic Curve Cryptography(ECC) ECC - Public key cryptosystem ECC - Key Exchange ECC - Encryption and Decryption Elliptic curve 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 Elliptic Curve Cryptography(ECC) - GATE Computer Science - Unacademy
Security+ Digital Signatures
 
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Security+ cryptography topic. How digital signatures are created.
Views: 51541 Darril Gibson
Information Technology Act 2000 || What is Digital Signature?
 
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To buy Full Course of CS Executive Jurisprudence, Interpretation & General Laws, Click the following link: https://www.instamojo.com/SudhirSachdeva/cs-executive-jurisprudence-interpretation-an/?ref=store Click the following link to Buy My Video Classes https://www.instamojo.com/SudhirSachdeva/?ref=profile_bar Click the following link to buy our video lectures https://www.instamojo.com/SudhirSachdeva/?ref=offer_page What is Digital Signature? What is the Difference Between Digital and Electronic Signature
Views: 14502 SUDHIR SACHDEVA
Elliptic Curve Cryptography & Diffie-Hellman
 
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Today we're going over Elliptic Curve Cryptography, particularly as it pertains to the Diffie-Hellman protocol. The ECC Digital Signing Algorithm was also discussed in a separate video concerning Bitcoin's cryptography.
Views: 50132 CSBreakdown
Digital & Electronic Signature | ISCA | CA Final | CA Chirag Akhani | BEI
 
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Digital Signature & Electronic Signature for CA-Final ISCA by CA Chirag Akhani at Bhagwati Education Institute, Bangalore. Topics Covered: 1) Difference between Electronic Signature & Digital Signature. 2) How does Digital Signature work? 3) What is Hash Function? 4) What is Hash Function Model or Digital Signature Model? 5) What is Message Digest? 6) What is Asymmetric Crypto Function? 7) What is Key Pair? 8) Functions of Public Key & Private Key. Bhagwati Education Institute provides teaching and consultancy in the Chartered Accountancy Course at all the levels - CA-CPT, CA-IPCC and CA-Final. Thank You for watching this video. Like, Share & Subscribe for more videos. And do leave your valuable feedback/suggestions in the comments section below. For more info: Visit: http://bhagwatieducation.com/ Mail: [email protected] Call: +91 9620393896 FB Page: https://www.facebook.com/Bhagwati-Education-Institute-205569179851337/
Certification Authority (CA) | Digital Certificate
 
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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: 28075 saurabhschool
Email Security Using Digital Signatures & Encryption - Webinar
 
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An overview of S/MIME email security. Protect against phishing and data loss by proving email origin, preventing tampering, and ensuring privacy. https://goo.gl/77wtYo In this webinar you will learn: 1:25 The Growing Risk of Using Email 4:26 What is S/MIME? 11:46 Benefits of Using a Certificate Management Platform 13:25 Automating Certificate Deployment using Active Directory 14:13 Mitigate Risk of Spear Phishing and Data Loss 15:08 Does the Other person Need to Get the Certificate at the Same Place I Got Mine? 15:40 If I already have a Digital Certificate Can I Start Using S/MIME? 16:14 Can I Use the Same Certificate on My Laptop and Mobile Device? 17:03 Will this Work on Mobile Devices? 17:40 I Currently Run an Internal CA but Any That Go outside the Company Trigger Security Warnings, Do You Have a Solution for This? 18:49 Where are the Certificates Generated? Is it Not a Risk if The Private Key is Found Elsewhere?
Views: 3496 GlobalSign
Keyed-Hash Message Authentication Code (HMAC)
 
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Learn how the HMAC algorithm can prove the integrity of a message, where as a simple message authentication code cannot.
Views: 25121 Vidder, Inc.
Digital Signature- meaning and usage | Introduction to Digital SIgnature
 
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Do you know what is Digital Signature (DSC)? How to use DSC? watch this video for complete information about Digital Signature #DigitalSignature #DSC #DigitalIndia #DigitalVerification
Views: 1150 Vyapar Munch
What is Cryptography? | Introduction to Cryptography | Cryptography for Beginners | Edureka
 
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** Cybersecurity Online Training: https://www.edureka.co/cybersecurity-certification-training ** Cryptography is essential to protect the information shared across the internet. This video on What is cryptography explaines you the fundamental concepts along with various encryption techniques. Below are the topics covered in this tutorial: 1. What is Cryptography? 2. Classification of Cryptography 3. How various Cryptographic Algorithm Works? 4. Demo: RSA Cryptography Cybersecurity Training Playlist: https://bit.ly/2NqcTQV Subscribe to our channel to get video updates. Hit the subscribe button above. About Edureka Cyber Security Training Cybersecurity is the combination of processes, practices, and technologies designed to protect networks, computers, programs, data and information from attack, damage or unauthorized access. Edureka’s Cybersecurity Certification Course will help you in learning about the basic concepts of Cybersecurity along with the methodologies that must be practiced ensuring information security of an organization. Starting from the Ground level Security Essentials, this course will lead you through Cryptography, Computer Networks & Security, Application Security, Data & Endpoint Security, idAM (Identity & Access Management), Cloud Security, Cyber-Attacks and various security practices for businesses. ------------------------------------------------ Why Learn Cyber Security? Cybersecurity is the gathering of advances that procedures and practices expected to ensure systems, PCs, projects and information from assault, harm or unapproved get to. In a processing setting, security incorporates both cybersecurity and physical security, it is imperative since cyberattackers can without much of a stretch take and obliterate the profoundly grouped data of governments, defense offices and banks for which the results are huge so it is essential to have an appropriate innovation which an avoid digital wrongdoings. --------------------------------------------------- Objectives of Edureka Cyber Security Course This course is designed to cover a holistic & a wide variety of foundational topics of the cybersecurity domain which will be helpful to lead freshers as well as IT professional having 1 to 2 years of experience, into the next level of choice such as ethical hacking/ audit & compliance / GRC/ Security Architecture and so on This course focuses mainly on the basics concepts of Cyber Security In this course, we are going to deal with Ground level security essentials cryptography, computer networks & security, application security, data & endpoint security, idAM (identity & access management), cloud security, cyber-attacks and various security practices for businesses This course will be your first step towards learning Cyber Security -------------------------------------- Who Should go for this Training? Anyone having the zeal to learn innovative technologies can take up this course. Especially, students and professionals aspiring to make a career in the Cybersecurity technology. However, Cybersecurity Certification Course is best suited for the below mentioned profiles:- Networking Professionals Linux Administrators ----------------------------------------------- Please write back to us at [email protected] or Call us at US: +18336900808 (Toll Free) or India: +918861301699 Facebook: https://www.facebook.com/edurekaIN/ Twitter: https://twitter.com/edurekain LinkedIn: https://www.linkedin.com/company/edureka
Views: 6555 edureka!
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: 452929 itfreetraining
What are certificates?
 
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Certificates are used to prove identity and used for creating secure communication. Check out http://itfreetraining.com for more of our always free training videos. This video looks at how a certificate works, what is a certificate and how they are used for identification and secure communication. Download the PDF handout http://itfreetraining.com/Handouts/Certificates/WhatAreCertificates.pdf What is a certificate? A certificate is an electronic document that contains data fields. When compared to a traditional paper certificate there are some similarities between an electronic certificate and a physical certificate. Digital certificates like a physical certificate are issued by an authority. For example, a university may issue a certificate to a student to show that they have completed the necessary work in order to graduate. The next question is, would you trust a physically certificate? Digital certificates work the same way. They are issued from an authority and the question becomes would you trust the authority that issued the certificate? Electronic certificates also contain other fields like who or what the certificate was issued to, how long it is valid, the public key and the digital signature. If a digital certificate is presented to a user or computer, the user or computer is able to check the certificate to ensure the person using it should be using it. Also the certificate contains a digital signature which allows the certificate to be checked to make sure it has not been modified. Digital Signature A digital signature provides a method for a certificate to be checked to ensure it has not been modified. In order to do this, a hash value is created for the certificate. To generate a hash value the certificate is put through a function to create a single value. Hash functions are designed so different certificates will not produce the same value, however the hash value cannot be used to generate the original certificate. The same principal applies to a person's fingerprints. They can be used to identify a person, however using a finger print you could not work out the features of a person like what color hair they have. When a certificate is created, the hash value for that certificate is also created. Using a function involving the private key, a digital signature is created and added to the certificate. Digital Signature Example When a certificate is used, in order to check the certificate has not been changed, the following is done: The computer generates the hash value for the certificate. Next, the digital signature is put through a function using the public key which should result in the same hash value. If both values match, the certificate has not been modified. This prevents a 3rd party taking a certificate, changing the values in the certificate and using the certificate. Trust Model Certificates work off a trust model. An example of a trust model in computers is that a computer may have a sticker on it indicating which operating systems it will run. The consumer, seeing this sticker, must trust that the manufacture would not put this sticker on the laptop unless it will run that operating system. The customer must also trust the creator of that operating system would not allow a computer manufacturer to put a sticker on a computer that would not run that operating system. Certificate Trust Model Certificates are generally deployed in a hierarchy. At the top is the root certificate authority. This can be an internal Certificate Authority or an external authority like VeriSign. When an authority like VeriSign issues a certificate, they will perform a number of checks on the individual purchasing the certificate to ensure that they are a valid business. When a certificate is used it can be checked to see which authority issued that certificate. In order for the certificate to be used, the computer must trust the authority that it was issued from. Authorities like VeriSign are trusted by default on most operating systems. Certificate Error If a certificate is presented to the computer and it is not trusted, the computer will generate an error asking if the users want to trust the certificate. It is up to the user to decide if they believe the certificate is valid. Certificate Hierarchy Certificates use a hierarchy. At the top is the root CA, below these are subordinate CA's. Any level can issue certificates to subordinate CA's or direct to users, computers or devices. If the user, computer or device trusts the root CA, then any certificate that is issued by any CA in the hierarchy will automatically be trusted and thus used by the client. References "MCTS 70-640 Configuring Windows Server 2008 Active Directory Second edition" pg 771-775 "Public key certificate" http://en.wikipedia.org/wiki/Public_key_certificate
Views: 432001 itfreetraining
NETWORK SECURITY - HMAC ALGORITHM
 
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www.youtube.com/c/sundeepsaradhi
NETWORK SECURITY - SECURE ELECTRONIC TRANSACTION(SET) - PART 1
 
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SET - Secure Electronic Transaction How the data is protected in the electronic transaction. SET SERVICES 1.CONFIDENTIALITY 2.INTEGRITY 3.CARD HOLDER AUTHENTICATION 4.MERCHANT AUTHENTICATION SET PARTICIPANTS 1.CARD HOLDER 2.MERCHANT 3.ISSUER 4.AQUIRER 5.CERTIFICATE AUTHORITY 6.PAYMENT GATEWAY SET TRANSACTIONS 1.PURCHASE REQUEST 2.PAYMENT AUTHORIZATION 3.PAYMENT CAPTURE.
Hash Functions
 
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0:00-4:15 - A conceptual overview of hash functions and their requirements. 4:15-end - Hash functions in digital signatures use. For review on how RSA signatures work, see: https://www.youtube.com/watch?v=DIfOvWymmP0 Questions? Feel free to post them in the comments and I'll do my best to answer!
Views: 18188 Theoretically
What is Encryption? Public Key Encryption? Explained in Detail
 
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Namaskaar Dosto, is video mein maine aapko encryption ke baare mein bataya hai, aap sabhi ne computer aur internet use karte time Encryption aur decryption ke baare mein jarur suna hoga, usme aapko SSL encrytpion TSL Encryption, Public Key encryption, private key encryption wagereh ke baare mein bhi suna hoga, aur abhi recently whatsapp ne bhi end to end encryption launch kiya hai, toh aise mein hamare man mein bahut se sawaal hai ki aakhir yeh encryption hota kya hai? Encryption hum hamari email pe bhi use karte hai, aur hum online banking karte time bhi encryption ka use karte hai. Mujhe umeed hai ki yeh video dekhne ke baad aap encryption aur decryption ke baare mein sab kuch jaan jayenge, aur saath hi saath public key encryption ke baare mein bhi samajh jayenge. aur aap aaraam se whatsapp ke encryption feature ko bhi use kar payenge. Win Galaxy S7, S7 Edge Here: http://bit.ly/TheMegaGiveaway Share, Support, Subscribe!!! Subscribe: http://bit.ly/1Wfsvt4 Youtube: http://www.youtube.com/c/TechnicalGuruji Twitter: http://www.twitter.com/technicalguruji Facebook: http://www.facebook.com/technicalguruji Instagram: http://instagram.com/technicalguruji Google Plus: https://plus.google.com/+TechnicalGuruji About : Technical Guruji is a YouTube Channel, where you will find technological videos in Hindi, New Video is Posted Everyday :)
Views: 174370 Technical Guruji
Asymmetric encryption - Simply explained
 
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How does public-key cryptography work? What is a private key and a public key? Why is asymmetric encryption different from symmetric encryption? I'll explain all of these in plain English! 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be 👍🏻 Like my Facebook page: https://www.facebook.com/savjee
Elliptic Curve Cryptography Overview
 
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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: 152869 F5 DevCentral
Module 6: X.509 Digital Certificate
 
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Certification Authority - an authority in a network that issues and manages security credentials and public keys for message encryption References: X.509 Digital Certification. (n.d.). Retrieved February 18, 2015, from https://msdn.microsoft.com/en-us/library/windows/desktop/aa388452(v=vs.85).aspx
Views: 27100 Simple Security
Applied Cryptography: The Digital Signature Algorithm - Part 2
 
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This video covers the key generation algorithm of the DSA in Java.
Views: 1659 Leandro Junes
Digital Signature Kya Hai || Importance Of Digital Signature || Keep Yourself Safe
 
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Facebook Page - https://www.facebook.com/DigitalCharcha Hello Friends, Is Video mai mai aap ko bataunga Digital Signature ke baare mai. Kyu Digital Signature important hai, kaise digital siganture kaam karta hai, digital signature ke faayde kya hai and digital signature ke examples. Dosto hume umeed hai ki aap ko ye video pasand aayega and agar aap ko hamare digital signature ka video pasand aata hai to hamare channel ko subscriber zaruur kare. ►Hamare saare video, yahan dekhiye - http://bit.ly/2ewQgcl ►'Digital Charcha' ke YouTube channel ko subscribe karne ke liye yahan click kijiye - http://bit.ly/DigiC ► हमारे सारे वीडियो, यहाँ देखिये - http://bit.ly/2ewQgcl ► ' डिजिटल चर्चा' के यूट्यूब चैनल को सब्सक्राइब करने के लिए यहाँ क्लिक करें - http://bit.ly/DigiC अगर आप को यह विडियो पसंद आया तो कृपया लाइक करें और अगर आप कुछ कहना या पूछना चाहते है तो कृपया नीचे दिए गए कमेंट बॉक्स में लिखें धन्यवाद ! Subscribe Us For Daily Computer, Internet And Technology Learning Video Tutorials In Hindi. अगर आप Computer, Internet & Technology के बारे में सीखना और जानना चाहते है तो हमारे "Digital Charcha" YouTube चैनल को Subscribe कर ले | Channel - https://www.youtube.com/channel/UCKD1sEKr2badStIhn-A-t0w
Views: 26439 Digital Charcha
Digital Signatures (CSS441, L18, Y15)
 
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Hash functions and public key crypto for digital signatures. Course material via: http://sandilands.info/sgordon/teaching
Views: 1038 Steven Gordon
SSL Certificate Explained
 
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Views: 825399 dtommy1979
Blockchain/Bitcoin for beginners 3: public/private keys, signatures... and first ever transaction
 
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Detailed overview of public/private key encryption and live demo of exactly how digital signatures work on Mac, combining public and private keys and hash functions. Welcome to episode 3 of my series on Blockchain/Bitcoin. I'm joined once again by my girlfriend Nadisha who is my classroom pupil... I build on the hash function concepts from the previous episode and explain the basic concepts public and private keys and how to use them to create digital signatures - a key part of the bitcoin infrastructure. We demonstrate in a Mac terminal how you can generate your own keys and encrypt and decrypt and sign your own resources - learning by doing always works. We touch on bitcoin addresses, what they represent and how they are created. Finally I go back for a refresh of the bitcoin blockchain browser and look at the first ever bitcoin transaction in the "Genesis Block" to show what a real bitcoin address looks like. Bitcoin Blockchain browser https://blockchain.info Online hash calculator - great way to practice and familiarise with hash functions - one of the most important building blocks of Blockchain/Bitcoin http://www.fileformat.info/tool/hash.htm Course to date (previous videos) 1. Blockchain introduction https://youtu.be/xwA2TkcAQgQ 2. Hashing, blockchain networks and look at blockchain browser https://youtu.be/oxwMnqFNq9M SAMPLE COMMANDS: You will need to use your own document - pick any document, obviously your hash values will be different to mine. Also I had to use (right arrow) - since comments do not allow "chevron" symbols # EXAMPLE 1: # generate public and private keys openssl genrsa -out mykey 2048; cp mykey privatekey; openssl rsa -in mykey -pubout -out publickey; rm mike #encrypt with public key echo “the cat sat on the mat” | openssl rsautl -encrypt -pubin -inkey publicly (right arrow) cipher.txt # show the garbage cat cipher.txt # decrypt with private key - The cat sat on the mat cat cipher.txt | openssl rsautl -decrypt -inkey privately # EXAMPLE 2: Sign Alice in wonderland #check the SHA256 hash of the document to send - d9db7b8984d808b2821070cc6cc76e4415229d3356452b2a0f06ec3608f13b6c shasum -a 256 alice-in-wonderland.txt | cut -d" " -f1 # create a text file called signature which hashes the document and encrypts with private key shasum -a 256 alice-in-wonderland.txt | cut -d" " -f1 | openssl rsautl -inkey privatekey -sign (right arrow) signature # wrap the signature up with the public key, the document and the signature and send it … we just copy to another folder tar -cvf alice.tar signature alice-in-wonderland.txt publickey;mkdir -p inbox;cp alice.tar inbox;cd inbox;tar -xvf alice.tar # inspect the public key and verify with the sender that it belongs to the sender cat publickey #decrypt the signature with the received public key - d9db7b8984d808b2821070cc6cc76e4415229d3356452b2a0f06ec3608f13b6c openssl rsautl -inkey publickey -pubin -in signature # hash the received document - d9db7b8984d808b2821070cc6cc76e4415229d3356452b2a0f06ec3608f13b6c shasum -a 256 alice-in-wonderland.txt | cut -d" " -f1 # if they are both the same then the document cannot have been changed since it was signed by the genuine owner of the # private key corresponding to the public key
Views: 19052 Matt Thomas
Digital Certificates and Signatures
 
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Following on from this video: https://www.youtube.com/watch?v=-9rK3EZop_M, looking at how digita certificates verify public keys, and how signatures are utilitised in certificates to ensure they can be trusted. If this video was useful, please like it and subscribe, it really helps! Also, if you use an ad blocker, whitelisting my channel is very much appreciated! Any questions/ feedback/ enquiries: [email protected] These videos will always be free but if you'd consider a donation I'd be extremely grateful: https://www.paypal.me/computersciencetutor If you are studying for a specific course, to watch the videos in their intended order and only those applicable to your Computer Science course, please use the playlists on my channel page.

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