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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
Non-Repudiation - CompTIA Security+ SY0-401: 6.1
 
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Security+ Training Course Index: http://professormesser.link/sy0401 Professor Messer’s Course Notes: http://professormesser.link/sy0401cn Frequently Asked Questions: http://professormesser.link/faq See my entire index of CompTIA Security+ videos at http://www.FreeSecurityPlus.com - - - - - Our encryption technologies not only provide a secure channel of communication, but they can also prove that the data we’re receiving has not been changed between endpoints. In this video, you’ll learn about non-repudiation and how digital signatures can ensure the integrity and authenticity of our data. - - - - - Download entire video course: http://professormesser.link/401adyt Get the course on MP3 audio: http://professormesser.link/401vdyt Subscribe to get the latest videos: http://professormesser.link/yt Calendar of live events: http://www.professormesser.com/calendar/ 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: 28592 Professor Messer
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: 52022 Udacity
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: 173978 Fasih Khatib
Non-Repudiation
 
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-- Created using PowToon -- Free sign up at http://www.powtoon.com/join -- Create animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video. PowToon's animation templates help you create animated presentations and animated explainer videos from scratch. Anyone can produce awesome animations quickly with PowToon, without the cost or hassle other professional animation services require.
Views: 2922 Estefania Rivera
Nonrepudiation — No denying it!!
 
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Preventing forgery, or fictitious claims of forgery, is an important task when securing TCP/IP communications. This is usually referred to as non-repudiation. Non-repudiation deals with the integrity of the data and the legitimacy of the sender. More at: http://haimit.com/nonrepudation PLAYLIST: Security/Malware/Attacks https://www.youtube.com/playlist?list=PLXp4credUt6QjvITFH5E0vqzwEZYp-KjZ SUBSCRIBE TO THE CHANNEL: http://www.youtube.com/c/HaimitRyanToolsie WEBSITE: www.HaimIT.com FOLLOW: Google plus: https://plus.google.com/+HaimitRyanToolsie/posts Twitter: https://twitter.com/haim_it
Views: 2964 TekRoads
Why digital certificate?
 
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Digital Signature: https://www.youtube.com/watch?v=TmA2QWSLSPg&t=2s Digital signature is used for authentication, non-repudiation and data integrity, but there is one weakness of digital signature alone: man-in-the-middle attack. Digital certificates are electronic credentials issued by a trusted third party. A digital certificate not only verifies the identity of the owner, but also verifies that the owner owns the public key. In this video, I will demonstrate why digital signature has weakness and how digital certificate comes in place to make sure digitally signed document must come originally from the claimed sender. 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 leave comments, questions and please subscribe! Sunny Classroom
Views: 29162 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.
What is NONREPUDIATION? What does NONREPUDIATION mean? NONREPUDIATION meaning & explanation
 
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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: 3585 The Audiopedia
Digital Signatures
 
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Bluebeam® Revu® ensures the authenticity, integrity and non-repudiation of your digital ID when signing and validating documents electronically, as well as those of your colleagues and project partners. Learn more at bluebeam.com/digital-signatures View, edit, and markup PDFs quickly and easily. For a free 30-day trial visit: http://www.bluebeam.com/Youtube
Views: 25993 Bluebeam, Inc.
Non-repudiation
 
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Non-repudiation 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. -Video is targeted to blind users Attribution: Article text available under CC-BY-SA image source in video https://www.youtube.com/watch?v=fP3wfKAjP3g
Views: 188 WikiAudio
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.
Hashing and Digital Signatures - CompTIA Security+ SY0-501 - 6.1
 
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Security+ Training Course Index: http://professormesser.link/sy0501 Professor Messer’s Course Notes: http://professormesser.link/501cn Frequently Asked Questions: http://professormesser.link/faq - - - - - A cryptographic hash can be used for many different tasks. In this video, you’ll learn about hashing, collisions, digital signatures, and more. - - - - - Subscribe to get the latest videos: http://professormesser.link/yt Calendar of live events: http://www.professormesser.com/calendar/ 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: 19614 Professor Messer
How digital Signatures work
 
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A little slideshow I put together while studying for a Computer security class. I hope someone finds it helpful.
Views: 24551 Mike Farnsworth
Non-repudiation: Ability to leverage digital signature as a service
 
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This is a session given by Henrik Eriksson at Nordic APIs 2016 Platform Summit on October 25th, in Stockholm Sweden.
Views: 241 Nordic APIs
TLS-N: Non-repudiation over TLS Enabling Ubiquitous Content Signing - BPASE '18
 
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TLS-N: Non-repudiation over TLS Enabling Ubiquitous Content Signing - Karl Wüst BPASE '18, January 24-26th 2018, Stanford University Stanford Cyber Initiative Slides and a full listing of talks are available at https://cyber.stanford.edu/bpase18
Views: 162 Cyber Initiative
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: 2370 Introtuts
What are Digital Signatures and How Do They Work?
 
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What is a Digital Signature? In this animation, we will explain how digital signatures work using cryptography. In some ways, digital signatures do what their names suggest: they provide validation in the same way signatures do, in digital form. 👩‍🎓👨‍🎓Learn blockchain fast at the Lisk Academy: https://lisk.io/academy Thanks for watching! Lisk makes it easy for developers to build and deploy blockchain applications in JavaScript. Learn about the leading platform for world-changing dapps at https://lisk.io/products. 🗞Read our latest news on the Lisk Blog: https://blog.lisk.io/ 💼 Check our current job openings! https://angel.co/lisk 👚👕 Lisk t-shirts now available: https://merch.lisk.io/ 👩‍🚀👨‍🚀 Meet the team: https://lisk.io/team 🔒 Store your LSK in our official wallet: https://github.com/LiskHQ/lisk-nano/r... 🔎 View our blockchain explorer: https://explorer.lisk.io/ ⚙️ Get the all new Lisk Hub: https://lisk.io/hub/index.html#/ 🎥 For media inquiries, please email us at press [at] lisk [dot] io. 👫Join our community channels: Reddit: http://reddit.com/r/lisk Twitter: http://twitter.com/liskhq Telegram: https://t.me/Lisk_HQ Lisk.chat: https://lisk.chat/ Instagram: http://instagram.com/liskhq Facebook: http://facebook.com/liskhq LinkedIn: https://www.linkedin.com/company/lisk/ 👨‍💻👩‍💻 For developers: GitHub: https://github.com/LiskHQ Gitter: https://gitter.im/LiskHQ/lisk Documentation: https://lisk.io/documentation
Views: 3271 Lisk
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: 229485 Technical Guruji
DIGITAL SIGNATURES IN FEW MINUTES / WITH SPECIAL PRICES / DISCOUNT / OFFER
 
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Views: 129 AGOS (e) Shop
PQ Check - Authentication and Non-Repudiation using Sign-What-You-See Technologies
 
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In the digital world, it has not been possible to irrefutably bind a user to a transaction, until now. PQ Check employs patented technologies to cryptographically and securely lock a user's voice, video and gestures to a transaction. Biometric authentication alone is insufficient to deter fraudulent activities. PQ Check provides full traceability, accountability and non-repudiation in an easy to use package.
Views: 1264 Post-Quantum
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: 1734 The Audiopedia
Lecture 18: Digital Signatures and Security Services by Christof Paar
 
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For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com
Ring Signatures
 
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https://asecuritysite.com/encryption/ring_sig
Views: 498 Bill Buchanan OBE
Asymmetry: Use Cases (Authentication, Verification, Digital Signatures)
 
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Cryptographic Asymmetry is the super brilliant idea that enables a host of Internet usages that were impossible without it: online verification of identities, authentication of messages, non-repudiation, and digital signatures are prime examples discussed in this video.
Views: 2490 Gideon Samid
Non-repudiation - CompTIA Security+ SY0-301: 6.1
 
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See our entire index of CompTIA Security+ videos at http://www.FreeSecurityPlus.com - One of the powerful features of modern cryptography is the ability to digitally "sign" your files and documents. In this video, you'll learn how non-repudiation can be used to ensure the authenticity and integrity of your documents.
Views: 16315 Professor Messer
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: 209108 Hacks And Security
CISA Exam-Testing Concept-Asymmetric Encryption (Domain-5)
 
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Point to remember for CISA exam: (1)In any given scenario, when objective is to ensure ‘confidentiality’, message has to be encrypted using receiver’s public key. (2)In any given scenario, when objective is to ensure ‘authentication’, HASH of the message has to be created and HASH to be encrypted using sender’s private key. Please note that hash is also known as message digest. (3)In any given scenario, when objective is to ensure ‘integrity’, HASH of the message has to be created and HASH to be encrypted using sender’s private key. Please note that hash is also known as message digest. (4)In any given scenario, when objective is to ensure ‘confidentiality & authentication’, following treatment is required: -Hash of the message to be encrypted using sender’s private key (to ensure authentication/non-repudiation) -Message to be encrypted using receiver’s public key (to ensure confidentiality) (5)In any given scenario, when objective is to ensure ‘confidentiality & authentication & integrity’, following treatment is required: -Message to be encrypted using receiver’s public key (to ensure confidentiality) -Hash of the message to be encrypted using sender’s private key (to ensure authentication/non-repudiation and integrity)
Views: 9270 Hemang Doshi
Digital Signature | Blockchain
 
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In this video we will discuss: Digital signature Encryption and decryption Achieving Confidentiality and authentication using a digital signature #blockchain #digital signature
Views: 4867 Telusko
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: 35 Hadassah Hartman
Cryptographic Attacks
 
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-- Created using PowToon -- Free sign up at http://www.powtoon.com/youtube/ -- Create animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video. PowToon's animation templates help you create animated presentations and animated explainer videos from scratch. Anyone can produce awesome animations quickly with PowToon, without the cost or hassle other professional animation services require.
Views: 513 Oorja Mathur
What is Digital Signature? Types Of Digital Signature? Part-1
 
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LIKE | SHARE | SUBSCRIBE what is digital signature? Types Of Digital Signature? Taponetwork Facebook- https://www.facebook.com/taponetwork Taponetwork Twitter- https://twitter.com/taponetwork Vishal Tiwari Facebook- https://www.facebook.com/vishalthetiw... Vishal Tiwari Twitter- https://twitter.com/vishalthetiwari
Views: 924 Tapo Tech
What does nonrepudiation mean?
 
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What does nonrepudiation mean? A spoken definition of nonrepudiation. Intro Sound: Typewriter - Tamskp Licensed under CC:BA 3.0 Outro Music: Groove Groove - Kevin MacLeod (incompetech.com) Licensed under CC:BA 3.0 Intro/Outro Photo: The best days are not planned - Marcus Hansson Licensed under CC-BY-2.0 Book Image: Open Book template PSD - DougitDesign Licensed under CC:BA 3.0 Text derived from: http://en.wiktionary.org/wiki/nonrepudiation Text to Speech powered by TTS-API.COM
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: 23216 LearnEveryone
ISO 27001 Training "Non Repudiation" ISO 27001 Non Repudiation Explained ISO 27001 ISMS
 
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ISO 27001 Training "Non Repudiation" ISO 27001 Non Repudiation Explained ISO 27001 ISMS ISO 27001 Training Videos & ISO 27001 Certification Videos ISO/IEC 27001 Thanks For Watching This Video, I Hope You Must Have Liked It. If yes then please hit the subscribe button as I will be uploading a lot of IT security related training videos on this channel and if you will be my subscriber then you my friend will be the first one who will be notified about all my new videos my friend. If you have any questions for the topic that I have discussed in this video then please feel free to comment my friend and I will be happy to respond back to your queries... Please note that - all ISO 27001 documents and standards are completely owned intellectual property & copyright of ISO. So in case if by any chance you are interested to study more about the standard that I have discussed here then please go to the official ISO website in order to purchase the standards. This channel is only created to generate awareness and best practices for Information Security in general and if by any chance you wish to implement any of the standards that I have discussed here then you have to first purchase them from official ISO website. This channel is only created to help anyone who is currently studying or planning to study about ISMS Information Security Management System ISO 27001 Implementation. I want to make my contribution in the information security community.This channel is only created to generate awareness and best practices for Information Security in general. Disclaimer: Since ISO 27001 is a very vast topic and the implementation varies for all organization's so I can't ever call myself an "expert" in this field, all the knowledge and information that I am sharing here is only based upon my past experience in information security field and may not be directly applicable within your organization as such. So please use your judgement before implementing anything based upon my suggestions. I request you not to rely on anything that I say here, I do my best to be as accurate and as complete information that I can provide you “but” only the published standards are definitive. Only the published ISO standards stand above any information that I have shared in any of my videos. Thanks, Your IT Security Friend Luv Johar Website : http://aajkatech.com/ iso 27001 explained, iso 27001 awareness trainings, iso 27001 free trainings online, Iso 27001 free tutorials, ISO 27001 training material free, lead auditor free training course, lead implementer free training course, ISMS training free, information security management system training free,
Digital Signature Schemes
 
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A video I have created that addresses and explains the fundamentals of Digital Signature Schemes.
Views: 605 AgniAsmi
Applied Cryptography: The Digital Signature Algorithm - Part 3
 
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This video explains the signature algorithm for the DSA. Two examples are given
Views: 1267 Leandro Junes
Digital signature
 
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A digital signature is a mathematical scheme for demonstrating the authenticity of a digital message or document. A valid digital signature gives a recipient reason to believe that the message was created by a known sender, such 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 commonly used for software distribution, financial transactions, and in other cases where it is important to detect forgery or tampering. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 224 Audiopedia
Security+ Digital Signatures
 
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Security+ cryptography topic. How digital signatures are created.
Views: 51611 Darril Gibson
Secure communication with symmetric and asymmetric encryption
 
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Follow our channel at http://vid.io/xomJ Visit our web page at http://vid.io/xomQ In this video I describe how Bob can send a secret message to Alice without Eve getting its content. With asymmetric keys, symmetric encryption and signing they achieve message confidentiality, message integrity, non-repudiation and secure distribution of encryption keys.
Views: 736 nat0.net
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: 103773 LearnEveryone
Digital Signature simplified - Is Julie, Jack?
 
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How does it guarantee your Privacy, Authenticity, Integrity & Non-Repudiation on the internet
Views: 94 Not SoTech
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: 4352 Skillset
CISA Exam-Last Minute Revision- Asymmetric Encryption Domain 5   Copy
 
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Point to remember for CISA exam: (1)In any given scenario, when objective is to ensure ‘confidentiality’, message has to be encrypted using receiver’s public key. (2)In any given scenario, when objective is to ensure ‘authentication’, HASH of the message has to be created and HASH to be encrypted using sender’s private key. Please note that hash is also known as message digest. (3)In any given scenario, when objective is to ensure ‘integrity’, HASH of the message has to be created and HASH to be encrypted using sender’s private key. Please note that hash is also known as message digest. (4)In any given scenario, when objective is to ensure ‘confidentiality & authentication’, following treatment is required: -Hash of the message to be encrypted using sender’s private key (to ensure authentication/non-repudiation) -Message to be encrypted using receiver’s public key (to ensure confidentiality) (5)In any given scenario, when objective is to ensure ‘confidentiality & authentication & integrity’, following treatment is required: -Message to be encrypted using receiver’s public key (to ensure confidentiality) -Hash of the message to be encrypted using sender’s private key (to ensure authentication/non-repudiation and integrity)
Views: 1265 Hemang Doshi
What is PUBLIC-KEY CRYPTOGRAPHY? What does PUBLIC-KEY CRYPTOGRAPHY mean?
 
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What is PUBLIC-KEY CRYPTOGRAPHY? What does PUBLIC-KEY CRYPTOGRAPHY mean? PUBLIC-KEY CRYPTOGRAPHY meaning - PUBLIC-KEY CRYPTOGRAPHY definition - PUBLIC-KEY CRYPTOGRAPHY explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. Public-key cryptography, or asymmetric cryptography, is any cryptographic system that uses pairs of keys: public keys that may be disseminated widely paired with private keys which are known only to the owner. There are two functions that can be achieved: using a public key to authenticate that a message originated with a holder of the paired private key; or encrypting a message with a public key to ensure that only the holder of the paired private key can decrypt it. In a public-key encryption system, any person can encrypt a message using the public key of the receiver, but such a message can be decrypted only with the receiver's private key. For this to work it must be computationally easy for a user to generate a public and private key-pair to be used for encryption and decryption. The strength of a public-key cryptography system relies on the degree of difficulty (computational impracticality) for a properly generated private key to be determined from its corresponding public key. Security then depends only on keeping the private key private, and the public key may be published without compromising security. Public-key cryptography systems often rely on cryptographic algorithms based on mathematical problems that currently admit no efficient solution—particularly those inherent in certain integer factorization, discrete logarithm, and elliptic curve relationships. Public key algorithms, unlike symmetric key algorithms, do not require a secure channel for the initial exchange of one (or more) secret keys between the parties. Because of the computational complexity of asymmetric encryption, it is usually used only for small blocks of data, typically the transfer of a symmetric encryption key (e.g. a session key). This symmetric key is then used to encrypt the rest of the potentially long message sequence. The symmetric encryption/decryption is based on simpler algorithms and is much faster. Message authentication involves hashing the message to produce a "digest," and encrypting the digest with the private key to produce a digital signature. Thereafter anyone can verify this signature by (1) computing the hash of the message, (2) decrypting the signature with the signer's public key, and (3) comparing the computed digest with the decrypted digest. Equality between the digests confirms the message is unmodified since it was signed, and that the signer, and no one else, intentionally performed the signature operation — presuming the signer's private key has remained secret. The security of such procedure depends on a hash algorithm of such quality that it is computationally impossible to alter or find a substitute message that produces the same digest - but studies have shown that even with the MD5 and SHA-1 algorithms, producing an altered or substitute message is not impossible. The current hashing standard for encryption is SHA-2. The message itself can also be used in place of the digest. Public-key algorithms are fundamental security ingredients in cryptosystems, applications and protocols. They underpin various Internet standards, such as Transport Layer Security (TLS), S/MIME, PGP, and GPG. Some public key algorithms provide key distribution and secrecy (e.g., Diffie–Hellman key exchange), some provide digital signatures (e.g., Digital Signature Algorithm), and some provide both (e.g., RSA). Public-key cryptography finds application in, among others, the information technology security discipline, information security. Information security (IS) is concerned with all aspects of protecting electronic information assets against security threats. Public-key cryptography is used as a method of assuring the confidentiality, authenticity and non-repudiability of electronic communications and data storage.
Views: 790 The Audiopedia
What is Shared Key Cryptography?
 
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In this video, I answer one of the most common questions asked during my Blockhain and Bitcoin Fundamentals course. "What is Shared Key Cryptography?" During the lesson I explain what Shared Key Cryptography is with a clear example, and I present a clear definition. Sign up to receive George Levy's FREE email newsletter and a video email course on blockchain, Bitcoin and cryptocurrency ($47 Value yours free) at: https://GeorgeLevy.com/Free Follow George Levy at the following links: https://GeorgeLevy.com (George Levy Website) https://Twitter.com/GeorgeLevy https://Facebook.com/GeorgeLevyBlockchain (Official Facebook Page) Special offer for George Levy YouTube channel visitors, open a new Bitcoin wallet for Free and get $10 bonus in Bitcoin at: https://blockchaininformer.com/btcwallet
Views: 2642 George Levy
How to Apply Online Digital Signature in Hindi?
 
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How to Apply Online Digital Signature in Hindi? Apply Online DigitalSi gnature https://www.emudhradigital.com/application_form.php what is digital signature? Types Of Digital Signature? https://www.youtube.com/watch?v=W7WlnAdL6h4&t=13s Taponetwork Facebook- https://www.facebook.com/taponetwork Taponetwork Twitter- https://twitter.com/taponetwork Vishal Tiwari Facebook- https://www.facebook.com/vishalthetiw... Vishal Tiwari Twitter- https://twitter.com/vishalthetiwari
Views: 1883 Tapo Tech
IOTA tutorial 6: Why you should not reuse an address for outgoing transactions
 
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If you like this video and want to support me, go this page for my donation crypto addresses: https://www.youtube.com/c/mobilefish/about This is part 6 of the IOTA tutorial. In this video series different topics will be explained which will help you to understand IOTA. It is recommended to watch each video sequentially as I may refer to certain IOTA topics explained earlier. Digital signatures are used for authentication, integrity checking and non-repudiation.  Development of quantum computers threatens the security of currently used digital signature algorithms such as Rivest–Shamir–Adleman (RSA) and Elliptic Curve Digital Signature Algorithm (ECDSA). Cryptographers developed a variety of quantum-resistant alternatives of which hash based signatures are the most promising. Hash based signatures are based on so called One Time Signatures (OTS). The term implies that a single public/private key pair must only be used once. Otherwise, an attacker is able to reveal more parts of the private key and spoof signatures. In 1979 Leslie Lamport created a method to construct digital signatures using only cryptographically secure one way hash functions. This method is called the Lamport signature or Lamport One Time Signature (OTS) scheme. Other One Time Signature schemes are the Merkle OTS and Winternitz OTS. The Lamport One Time Signature scheme is very easy to understand and is VERY LOOSELY comparable to Winternitz OTS. For simplicity's sake I will be using the Lamport One Time Signature scheme explaining why you should never reuse an IOTA address for outgoing transactions. Alice uses a random number generator and produces two pairs of 256 random numbers, total 512 numbers. Each random number is 256 bits in size. These random numbers forms the private key. Each of the 512 random numbers are separately hashed, using for example SHA-256. These hashed random numbers forms the public key. Alice has a document (or transaction data) which is hashed using SHA-256. The document hash is of course 256 bits long: 101..011 Alice wants to create a digital signature for her document. She applies the following procedure: - Loop thru each bit (n) of the hash from 0-255. - If the bit is a 0, publish the nth number from pair 0. - If the bit is a 1, publish the nth number from pair 1. - When all bits are looped, destroy all unused numbers from pair 0 and 1. This produces a sequence of 256 random numbers. The digital signature is a sequence of 256 random numbers. After the digital signature is created, delete all unused numbers from the private key. The digital signature consist half of the private key, the other 256 random numbers are still unknown and thus nobody can create signatures that fit other message hashes. Alice sends her document, together with the corresponding digital signature and public key to Bob. Bob wants to verify Alice's document signature. He first hashes the document using SHA-256. The document hash is again: 101..011 Bob follows the same steps when Alice created the digital signature, but instead uses the public key. Bob produces a sequence of 256 hashes picked from Alice's public key. Bob now hashes each of the random number in the digital signature. If both sequence of hash numbers match then the signature is ok. The Lamport signature creates a digital signature which reveals part of the private key. The private key has 512 numbers and using it once will reveal 256 numbers. Using the private key twice weakens the security of the scheme again by half. The probability of an attacker being able to successfully forge a signature for a given message increases from 1/(2^256) to 1/(2^128). A third signature using the same key would increase the probability of a successful forgery to 1/(2^64) and a fourth signature to 1/(2^32), and so on. Please note IOTA's signature scheme is based on the Winternitz One Time Signature (WOTS) scheme and is NOT the same as the Lamport signature scheme. However by using the Lamport One Time Signature scheme I am trying to give you a very simplistic understanding why you should never reuse an IOTA address for outgoing transactions. Check out all my other IOTA tutorial videos: https://goo.gl/aNHf1y Subscribe to my YouTube channel: https://goo.gl/61NFzK The presentation used in this video tutorial can be found at: https://www.mobilefish.com/developer/iota/iota_quickguide_tutorial.html #mobilefish #howto #iota
Views: 5483 Mobilefish.com

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