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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
PCI Requirement 8.2.1 – Use Strong Cryptography to Render All Authentication Credentials Unreadable
 
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Learn more at https://kirkpatrickprice.com/video/pci-requirement-8-2-1-use-strong-cryptography-render-authentication-credentials-unreadable-transmission-storage/ PCI Requirements 3 and 4 help your organization implement strong cryptography methods, and we see it again here in PCI Requirement 8. Using strong cryptography is essential to protecting cardholder data. An attacker can easily capture unencrypted passwords during transmission and while in storage, and use this data to gain unauthorized access to your system or to the cardholder data environment. To prohibit this interception, PCI Requirement 8.2.1 requires, “Using strong cryptography, render all authentication credentials (such as passwords/phrases) unreadable during transmission and storage on all system components.” To verify compliance with PCI Requirement 8.2.1, your organization’s vendor documentation and systems will be examined, along with a sample of your own system components, to ensure the use of strong cryptography to render all authentication credentials unreadable during transmission and storage. Service providers must undergo additional testing procedures so assessor’s can observe password files and confirm that non-consumer customer passwords are also unreadable during transmission and storage. Stay Connected Twitter: https://twitter.com/KPAudit LinkedIn: https://www.linkedin.com/company/kirkpatrickprice-llc Facebook: https://www.facebook.com/kirkpatrickprice/ More Free Resources Blog: https://kirkpatrickprice.com/blog/ Webinars: https://kirkpatrickprice.com/webinars/ Videos: https://kirkpatrickprice.com/video/ White Papers: https://kirkpatrickprice.com/white-papers/ About Us KirkpatrickPrice is a licensed CPA firm, PCI QSA, and a HITRUST CSF Assessor, registered with the PCAOB, providing assurance services to over 600 clients in more than 48 states, Canada, Asia, and Europe. The firm has over 12 years of experience in information security and compliance assurance by performing assessments, audits, and tests that strengthen information security and internal controls. KirkpatrickPrice most commonly provides advice on SOC 1, SOC 2, HIPAA, HITRUST CSF, PCI DSS, ISO 27001, FISMA, and CFPB frameworks. For more about KirkpatrickPrice: https://kirkpatrickprice.com/ Contact us today: 800-770-2701 https://kirkpatrickprice.com/contact/
Views: 153 KirkpatrickPrice
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: 36133 Sunny Classroom
Bypassing Local Windows Authentication To Defeat Full Disk Encryption
 
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by Ian Haken In 2007, starting with Windows Vista, Microsoft began shipping a full disk encryption feature named BitLocker with professional and enterprise versions of Windows. Full disk encryption helps protect users from threats that include physical access. This can, for example, prevent the exposure of proprietary information and account credentials if a company laptop is lost, stolen, or even left temporarily accessible to an attacker. Under the hood, BitLocker utilizes a system's Trusted Platform Module (TPM) to store the secret key used for full disk encryption, and is able to use the features of the TPM to safely provide transparent, passwordless decryption of the disk on boot. Because BitLocker can work transparentlywithout any extra passwords or prompts on bootmany enterprises have opted to enable this form of full disk encryption as a part of their data loss prevention strategy. However, in this presentation, I will demonstrate how one can abuse physical access in order to bypass Windows authenticationthus accessing all of a user's dataeven when the disk is fully encrypted by BitLocker. This platform-independent attack effectively bypasses all of the protection offered by BitLocker, reliably and quickly allowing an attacker to retrieve all of the sensitive data on the machine, all without having to perform any cryptographic brute-forcing or hardware manipulation.
Views: 20632 Black Hat
Mutual Authentication  Simplified
 
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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: 11666 Udacity
What is DIGITAL CREDENTIAL? What does DIGITAL CREDENTIAL mean? DIGITAL CREDENTIAL meaning
 
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What is DIGITAL CREDENTIAL? What does DIGITAL CREDENTIAL mean? DIGITAL CREDENTIAL meaning - DIGITAL CREDENTIAL definition - DIGITAL CREDENTIAL explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ Digital credentials are the digital equivalent of paper-based credentials. Just as a paper-based credential could be a passport, a driver's license, a membership certificate or some kind of ticket to obtain some service, such as a cinema ticket or a public transport ticket, a digital credential is a proof of qualification, competence, or clearance that is attached to a person. Also, digital credentials prove something about their owner. Both types of credentials may contain personal information such as the person's name, birthplace, birthdate, and/or biometric information such as a picture or a finger print. Because of the still evolving, and sometimes conflicting, terminologies used in the fields of computer science, computer security, and cryptography, the term "digital credential" is used quite confusingly in these fields. Sometimes passwords or other means of authentication are referred to as credentials. In operating system design, credentials are the properties of a process (such as its effective UID) that is used for determining its access rights. On other occasions, certificates and associated key material such as those stored in PKCS#12 and PKCS#15 are referred to as credentials. Digital badges are a form of digital credential that indicate an accomplishment, skill, quality or interest. Digital badges can be earned in a variety of learning environments. Real world credentials are a diverse social phenomenon, and as such are difficult to define. As with digital signatures it is misleading to assume a direct correspondence between the real-world and the digital concept. This holds even if defining criteria for credentials in the digital world could be agreed on. The success of digital signatures as a replacement for paper based signatures has lagged behind expectations. On the other hand, many unexpected uses of digital signatures were discovered by recent cryptographic research. A related insight that can be learned from digital signatures is that the cryptographic mechanism need not be confused with overall process that turns a digital signature into something that has more or less the same properties as a paper based signature. Electronic signatures such as paper signatures sent by fax may have legal meaning, while secure cryptographic signatures may serve completely different purposes. We need to distinguish the algorithm from the process. Money is usually not seen as a qualification that is attached to a specific person as token money is taken to have a value on its own. Digital assets like digital cash are easily copied. Consequently, digital cash protocols have to make an extra effort to avoid the double spending of coins. Credentials are a proof of qualification that is attached to a person. E-Coins are given to individuals, who cannot pass them on to others, but can only spend them with merchants. As long as they spend a coin only once, they are anonymous, but should they spend a coin twice, they become identifiable and appropriate actions can be taken by the bank. This commonality, the binding to an individual, is why digital cash and digital credentials share many commonalities. In fact most implementations of anonymous digital credential also realize digital cash. The main idea behind anonymous digital credentials is that users are given cryptographic tokens which allow them to prove statements about themselves and their relationships with public and private organizations anonymously. This is seen as a more privacy-friendly alternative to keeping and using large centralized and linkable user records. Anonymous digital credentials are thus related to privacy and anonymity. Paper world analogues of personalized, or non-anonymous credentials are: passports, driving licenses, credit cards, health insurance cards, club membership cards etc. These contain the name of the owner and have some authenticating information such as a signature, PIN or photograph, to stop them being used by anyone other than the rightful owner. Paper world analogues of anonymous credentials are: money, bus and train tickets, and game-arcade tokens. These don't have any personally identifying information and consequently can be transferred between users without the issuers or relying parties being aware of this. Credentials are issued by organizations that ascertain the authenticity of the information which can be provided to verifying entities on demand. ....
Views: 174 The Audiopedia
What is AUTHENTICATION SERVER? What does AUTHENTICATION SERVER mean?
 
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What is AUTHENTICATION SERVER? What does AUTHENTICATION SERVER mean? AUTHENTICATION SERVER meaning - AUTHENTICATION SERVER definition - AUTHENTICATION SERVER explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ An authentication server provides a network service that applications use to authenticate the credentials, usually account names and passwords, of their users. When a client submits a valid set of credentials, it receives a cryptographic ticket that it can subsequently use to access various services. Authentication is used as the basis for authorization, which is the determination whether a privilege may be granted to a particular user or process, privacy, which keeps information from becoming known to non-participants, and non-repudiation, which is the inability to deny having done something that was authorized to be done based on the authentication. Major authentication algorithms include passwords, Kerberos, and public key encryption.
Views: 758 The Audiopedia
cryptography - Message Integrity
 
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Cryptography To get certificate subscribe: https://www.coursera.org/learn/cryptography ======================== Playlist URL: https://www.youtube.com/playlist?list=PL2jykFOD1AWb07OLBdFI2QIHvPo3aTTeu ============================ Youtube channel: https://www.youtube.com/user/intrigano ============================ https://scsa.ge/en/online-courses/ https://www.facebook.com/cyberassociation/
Views: 1665 intrigano
Passwords & hash functions (Simply Explained)
 
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How can companies store passwords safely and keep them away from hackers? Well let's find out! With all the data breaches lately, it's likely that the password of one of your accounts has been compromised. Hackers now might know the password you've used, but they also might not.. To understand why, we'll take a look at what methods a company can use to protect user passwords. We'll take a look at encryption, hash functions and a multilayer approach! 📚 Sources Can be found on my website: https://savjee.be/videos/simply-explained/hash-functions/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
PhotoProof: Cryptographic Image Authentication for Any Set of Permissible Transformations
 
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PhotoProof: Cryptographic Image Authentication for Any Set of Permissible Transformations Assa Naveh and Eran Tromer (Tel Aviv University) Presented at the 2016 IEEE Symposium on Security & Privacy May 23–25, 2016 San Jose, CA http://www.ieee-security.org/TC/SP2016/ ABSTRACT Since the invention of the camera, photos have been used to document reality and to supply proof of events. Yet today it is easy to fabricate realistic images depicting events that never happened. Thus, dozens of papers strive to develop methods for authenticating images. While some commercial cameras already attach digital signatures to photographs, the images often undergo subsequent transformations (cropping, rotation, compression, and so forth), which do not detract from their authenticity, but do change the image data and thus invalidate the signature. Existing methods address this by signing derived image properties that are invariant to some set of transformations. However, these are limited in the supported transformations, and often offer weak security guarantees. We present PhotoProof, a novel approach to image authentication based on cryptographic proofs. It can be configured, according to application requirements, to allow any permissible set of (efficiently computable) transformations. Starting with a signed image, our scheme attaches, to each legitimately derived image, a succinct proof of computational integrity attesting that the transformation was permissible. Anyone can verify these proofs, and generate updated proofs when applying further permissible transformations. Moreover, the proofs are zero-knowledge so that, for example, an authenticated cropped image reveals nothing about the cropped-out regions. PhotoProof is based on Proof-Carrying Data (PCD), a cryptographic primitive for secure execution of distributed computations. We describe the new construction, prove its security, and demonstrate a working prototype supporting a variety of permissible transformations.
Token Based Authentication
 
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This video is part of the Udacity course "Designing RESTful APIs". Watch the full course at https://www.udacity.com/course/ud388
Views: 77835 Udacity
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: 28757 Simple Security
Public Key Cryptography
 
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Asymmetric Public Key Cryptography is used for Authentication (Digital Signatures) or Encryption (Public Key Encryption). Link to "Cryptography" video: https://www.youtube.com/watch?v=-5pyj9aZwiQ
Views: 682 Biz Sci Tech
GTU INS Unit 6 Message Authentication Codes MAC
 
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In this video , i discussed about GTU INS Unit 6 Message Authentication Codes MAC you Can find Unit PPT, Material , related Videos on Below Google Drive LInk https://drive.google.com/drive/folders/0B3F0L2_uTazMUEVzOGoyMkM4SHM?usp=sharing For any Query you can mail me on [email protected] Feel Free to Share
Views: 2411 ANKIT CHOUHAN
Symmetric Key Encryption and Data Authentication
 
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Dig a little deeper into symmetric key encryption to find out about one of the basic methods of encrypting data and a simple algorithm for checking that the data is authentic.
Views: 602 Vidder, Inc.
Intro to SSH and SSH Keys
 
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SSH (Secure Shell) serves as one of the core authentication technologies for privileged access, enabling access to Unix/Linux systems, routers, switches, firewalls, etc. In spite of it's important role in security, many security executives don't have a basic understand of SSH. This short clip provides an introduction.
Views: 66409 Paul Turner
MAC (Message Authentication Code) or MIC in cryptography and network security in Hindi.
 
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Please Fill the form - https://docs.google.com/forms/d/1kOxvqvz1IvBMHJ3UeLecLDuK7ePKjHAvHaRcxduHKEE/edit ====================================================== Answer of your Questions Asked to me. (direct Link given below) Blogger Link - http://shalik-htd.blogspot.com/ ====================================================== Hey, friends, I upload the videos in this channel in Hindi for Engineering student of UPTU and other universities for computer science and IT (information technology) students. like share and subscribe my channel ====================================================== Install C Programming Solution Android app - https://play.google.com/store/apps/details?id=com.shalik.patel.cprogrammingsolution ====================================================== ====================================================== My Career Planning android app - https://play.google.com/store/apps/details?id=guide.mycareer.com.rec.mycareer ====================================================== ====================================================== My Android App for my College Library (An Official App Of College Library) - https://play.google.com/store/apps/details?id=jrv.library.rec.reclibrary ====================================================== How to use android application - https://www.youtube.com/watch?v=1hMZCvl-JxM ====================================================== Contact me on Facebook - https://www.facebook.com/HTD-hub-250593705388294/?ref=br_rs ====================================================== Follow me on twitter - https://twitter.com/PatelShalik ======================================================
[Hindi] What is Cryptography ? | Kya hai cryptography ? | Explained in simple words
 
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Hello Dosto Aaj hum baat karenge cryptography ke bare me ki ye kya hota hai aur iska itemaal kaise aur kaha hota hai. iska sambandh kisi bhi data ya message ko safely pohchane se hota hai aur uski security badhayi jati hai taaki bich me koi an-adhikarik tarike se usko access na kar paye. aasha karta hoo apko ye video pasand ayegi agar aapko ye video achhi lage to isse like kare aur apne dosto ke sath share kare aur abhi tak aapne mera channel subscribe nahi kia hai to jarur is channel ko subscribe kare. Subscribe to my channel for more videos like this and to support my efforts. Thanks and Love #TechnicalSagar LIKE | COMMENT | SHARE | SUBSCRIBE ---------------------------------------------------------------------------------- For all updates : SUBSCRIBE Us on Technical Sagar : www.youtube.com/technicalsagarindia LIKE us on Facebook https://www.facebook.com/technicalsagarindia Follow us on Twitter : http://www.twitter.com/iamasagar
Views: 94826 Technical Sagar
Types of Message Authentication | Message Encryption | Part 1 | Network Security | Hindi Urdu
 
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#askfaizan | #networksecurity | #syedfaizanahmad RSA Algorithm | RSA Algorithm Concept | RSA Algorithm with Example | Hindi / Urdu https://youtu.be/s3CH9c3Jcu0 How to find Euler's Totient Function https://youtu.be/6wHwTB-bRlw DES | Simple Explanation | Data Encryption Standard Algo https://youtu.be/oR1JQJlXtq4 Network Security - Transposition Techniques https://youtu.be/h4MOqFkN9Tk Block Cipher Modes of Operation | CTR mode https://youtu.be/Rp5HOTe4EbE Block Cipher Modes of Operation | OFB mode https://youtu.be/F2RwmXwrdV8 Block Cipher Modes of Operation | CFB mode https://youtu.be/yF_iA7Rv7k4 Block Cipher Modes of Operation | CBC mode | Part 2 https://youtu.be/Q7LKmASkVSU Block Cipher Modes of Operation | ECB mode | Part 1 https://youtu.be/mkY5mNSnuko Hill Cipher | Complete Algorithm with Example https://youtu.be/B0Q7w7Fd7ms Playfair Substitution Cipher https://youtu.be/w_xr7pj-O6c Monoalphabetic Substitution Cipher https://youtu.be/Hw1T7GOnVW0 Caesar Cipher | Caesar Substitution Cipher https://youtu.be/2N9GlhysYJw PlayList : Cryptography and Network Security : https://www.youtube.com/playlist?list=PLhwpdymnbXz7hvvqhqjIIG4tEdhAgQqll Types of Authentication in Hindi | Authentication Types in network security Message encryption: Cipher text  Authenticator Hash function: H(M) = Fixed Length Code Message authentication code (MAC): C(M, K) = Fixed Length Code
Views: 318 Ask Faizan
How can You Generate a Secure GPG Masterkey?
 
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This is a guide to using YubiKey as a SmartCard for storing GPG encryption, signing and authentication keys, which can also be used for SSH. Many of the principles in this document are applicable to other smart card devices. Keys stored on YubiKey are non-exportable (as opposed to file-based keys that are stored on disk) and are convenient for everyday use. Instead of having to remember and enter passphrases to unlock SSH/GPG keys, YubiKey needs only a physical touch after being unlocked with a PIN code. All signing and encryption operations happen on the card, rather than in OS memory. https://github.com/drduh/YubiKey-Guide Get Tails: https://tails.boum.org/ Get a Chaos Key: https://altusmetrum.org/ChaosKey/ Get at least 1 Yubikey: https://www.yubico.com/store/ Get at least 3 USB sticks. If you learned something valuable, donate Bitcoin to Max: 3DqEnU6dW6bZesrVdThrrQjQKgN7dpY5vv https://tallyco.in/HillebrandMax Support the show by buying bitcoin on https://hodlhodl.com/join/ERCT Check out the GPG series by 402 Payment Required: https://www.youtube.com/playlist?list=PLmoQ11MXEmajkNPMvmc8OEeZ0zxOKbGRa Listen to WCN Audio Podcasts: https://itunes.apple.com/us/podcast/the-world-crypto-network-podcast/id825708806 Check out the brand new http://WorldCryptoNetwork.com/ Find out more about Max https://towardsliberty.com Follow WCN on Twitter: https://twitter.com/WorldCryptoNet Follow Max on Twitter: https://twitter.com/HillebrandMax Contribute to Max’s Bachelor Thesis on Multi Signature in Lightning Network Payments: https://github.com/MaxHillebrand/LightningMultiSig Bitcoin to the Max: https://youtube.com/playlist?list=PLPj3KCksGbSZtGhC7nIr_Mf1oCeP8U1tV Read Rothbard ~ Use Bitcoin: https://youtube.com/playlist?list=PLPj3KCksGbSafpOorg0NdeVXGIPNqV_8a Open Source Everything: https://youtube.com/playlist?list=PLPj3KCksGbSb1h33FZbsrtr1feIIwTBHt Hackers Congress Paralelni Polis 2018: https://youtube.com/playlist?list=PLPj3KCksGbSY8xt-x-KoDb6L380odP_qu Baltic Honeybadger 2018: https://youtube.com/playlist?list=PLPj3KCksGbSZsgH48ZDxNdzRXbg_pvMnz Nodl Personal Bitcoin Assistant: https://www.youtube.com/playlist?list=PLPj3KCksGbSYvbhhUpIehNqnXFLkz1AD1 Bisq Decentralized Exchange: https://youtube.com/playlist?list=PLPj3KCksGbSZR33X7kJmDMwIEH-wrrpCJ ColdCard Wallet: https://youtube.com/playlist?list=PLPj3KCksGbSZJzC4besvtu8CSroBosrdt Purism: https://youtube.com/playlist?list=PLPj3KCksGbSZm6k6GlJRhY6T7wSvoEWbG Bitcoin Op Tech Newsletter: https://youtube.com/playlist?list=PLPj3KCksGbSY9pV6EI5zkHcut5UTCs1cp What Has Government Done to Our Money? By Murray Rothbard: https://youtube.com/playlist?list=PLPj3KCksGbSbPVUAhYqILAYQ3uUbh2zOu Mises University: https://youtube.com/playlist?list=PLPj3KCksGbSanfYiAp8JSHxIjBm66yPf5 Hayek Summer Workshop: https://youtube.com/playlist?list=PLPj3KCksGbSbx7WQMTJAG6wLd4tK9Llr9
7  One Way Authentication
 
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Views: 709 施凱文
[CS198.2x Week 2] Cryptographic Primitives
 
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CS198.2x Blockchain Technology Week 2 CS198.2x Blockchain Technology is the second course in the Blockchain Fundamentals edX program. Sign up today for free or for a professional certificate with the link below. Certificate page: https://www.edx.org/professional-certificate/uc-berkeleyx-blockchain-fundamentals Blockchain Fundamentals was developed by Blockchain at Berkeley, in collaboration with UC Berkeley EECS department, MOOCLab, and BRCOE for edX. Blockchain at Berkeley: https://blockchain.berkeley.edu/ View the complete playlist: https://www.youtube.com/playlist?list=PLZvgWu86XaWkt1YEthB1Z_75LWx8YK8e-
Digital Signature standard | Digital Signature Algorithm | RSA approach | DSS approach | Hindi Urdu
 
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#askfaizan | #syedfaizanahmad | #digital signature Types of Message Authentication | MAC | Part 2 | Network Security | Hindi Urdu https://youtu.be/C88ujAT8N0U Types of Message Authentication | Message Encryption | Part 1 | Network Security | Hindi Urdu https://youtu.be/2eRGEntqpL4 DIFFIE HELLMAN KEY EXCHANGE ALGORITHM | Diffie-Hellman key exchange algorithm | HINDI URDU https://youtu.be/I6oUvYzPMXc RSA Algorithm | RSA Algorithm Concept | RSA Algorithm with Example | Hindi / Urdu https://youtu.be/s3CH9c3Jcu0 How to find Euler's Totient Function https://youtu.be/6wHwTB-bRlw DES | Simple Explanation | Data Encryption Standard Algo https://youtu.be/oR1JQJlXtq4 Network Security - Transposition Techniques https://youtu.be/h4MOqFkN9Tk Block Cipher Modes of Operation | CTR mode https://youtu.be/Rp5HOTe4EbE Block Cipher Modes of Operation | OFB mode https://youtu.be/F2RwmXwrdV8 Block Cipher Modes of Operation | CFB mode https://youtu.be/yF_iA7Rv7k4 Block Cipher Modes of Operation | CBC mode | Part 2 https://youtu.be/Q7LKmASkVSU Block Cipher Modes of Operation | ECB mode | Part 1 https://youtu.be/mkY5mNSnuko Hill Cipher | Complete Algorithm with Example https://youtu.be/B0Q7w7Fd7ms Playfair Substitution Cipher https://youtu.be/w_xr7pj-O6c Monoalphabetic Substitution Cipher https://youtu.be/Hw1T7GOnVW0 Caesar Cipher | Caesar Substitution Cipher https://youtu.be/2N9GlhysYJw PlayList : Cryptography and Network Security : https://www.youtube.com/playlist?list=PLhwpdymnbXz7hvvqhqjIIG4tEdhAgQqll In Asymmetric Encryption, two types of keys are used – Public key & Private key Public key is shared to all Private key is secret key When message is Encrypted using Sender’s Private key then automatically process is called Digital Signature. When there is trust issues between sender and receiver, something more than authentication is needed. The most attractive solution to this problem is the Digital Signature. The digital signature must have the following properties: It must verify the author and date and time of the signature. It must authenticate the contents at the time of the signature. It must be verifiable by third parties, to resolve disputes. Approaches of Digital Signature - RSA approach DSS / DSA approach
Views: 1516 Ask Faizan
One-time Password Algorithms - CompTIA Security+ SY0-401: 5.2
 
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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 - - - - - A useful security authentication technique is the use of one-time passwords. In this video, you’ll learn how one-time passwords are implemented and the differences between the HOTP and TOTP algorithms. - - - - - 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: 31267 Professor Messer
Kerberos - CompTIA Security+ SY0-401: 5.1
 
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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 - - - - - Many organizations prefer using a centralized and secure authentication protocol. In this video, you’ll learn how Kerberos uses many different encryption points to maintain the security of the authentication process. - - - - - 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: 66257 Professor Messer
NETWORK SECURITY - MD5 ALGORITHM
 
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The MD5 algorithm is a widely used hash function producing a 128-bit hash value. Step 1. Append Padding Bits. The message is "padded" (extended) so that its length (in bits) is congruent to 448, modulo 512. ... Step 2. Append Length. ... Step 3. Initialize MD Buffer Step 4. Process Message in 16-Word Blocks. ... Step 5. Output.
Message Digest and Digital Signature | Cryptographic Hash Function
 
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This video lecture is produced by S. Saurabh. He is B.Tech from IIT and MS from USA. Message Digest and Digital Signature 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: 12450 saurabhschool
Blue Prism Video Tutorial | 041 | Credential Manager and Encryption Scheme
 
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In this video we will discuss in detail about credential manager and Encryption schemen and how storing Encryption key in Application server vs database affects. Google Drive link to download the code - https://drive.google.com/drive/folders/1KqUFgFT5-Gj72JrxwoYV_AUyjfsOdmeP?usp=sharing.
Views: 23307 Busy Ping
Symmetric vs Asymmetric ( public key )  Cryptography
 
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Lesson 2 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 symmetric vs asymmetric ( public key ) cryptography symmetric key vs assymetric key encryption advantages of symmetric key cryptography advantages of assymetric cryptography concept of digital signatures safe and secure communication between systems encrypted communication between systems like us on facebook : https://www.facebook.com/guidetohacking/ #symmetric #asymmetric #public #key #cryptography #encryption
Tricks to hack hashed passwords
 
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As we know, hash function/algorithm is used to generate digest/checksum of data. Hash function is not reversible. However, it can be hacked, and it is easy. In this video, I will use some websites to crack hashed passwords manually. You can see how easy to hack hashed passwords if hackers use powerful computer or clusters of computers to hack our passwords. They would crack millions every second. Do not assume your passwords are safe as long as they are hashed into non-reversible digests. Playlist: Basic Cryptography https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV Advanced Cryptography: https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7 Please leave comments, questions and Please subscribe to my channel Many thanks, Sunny Classroom
Views: 14567 Sunny Classroom
Bitcoin - Cryptographic Hash Functions
 
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Cryptographic Hash Functions - Bitcoin and Cryptocurrency Technologies Part 1 - Introduction to Crypto and Cryptocurrencies Learn about cryptographic building blocks ("primitives") and reason about their security. Work through how these primitives can be used to construct simple crypto currencies.
Views: 1683 intrigano
Birthday Paradox or birthday attack cryptography and networking security in hindi.
 
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Please Fill the form - https://docs.google.com/forms/d/1kOxvqvz1IvBMHJ3UeLecLDuK7ePKjHAvHaRcxduHKEE/edit ====================================================== Answer of your Questions Asked to me. (direct Link given below) Blogger Link - http://shalik-htd.blogspot.com/ ====================================================== Hey, friends, I upload the videos in this channel in Hindi for Engineering student of UPTU and other universities for computer science and IT (information technology) students. like share and subscribe my channel ====================================================== Install C Programming Solution Android app - https://play.google.com/store/apps/details?id=com.shalik.patel.cprogrammingsolution ====================================================== ====================================================== My Career Planning android app - https://play.google.com/store/apps/details?id=guide.mycareer.com.rec.mycareer ====================================================== ====================================================== My Android App for my College Library (An Official App Of College Library) - https://play.google.com/store/apps/details?id=jrv.library.rec.reclibrary ====================================================== How to use android application - https://www.youtube.com/watch?v=1hMZCvl-JxM ====================================================== Contact me on Facebook - https://www.facebook.com/HTD-hub-250593705388294/?ref=br_rs ====================================================== Follow me on twitter - https://twitter.com/PatelShalik ======================================================
Five* non-cryptographic hash functions enter. One hash function leaves.
 
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Adam Harvey https://linux.conf.au/schedule/30208/view_talk When you say “hash function” in a room full of developers, people tend to think of the classics: MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, SHA-OHGODPLEASESTOP, and the like — cryptographic hash functions intended for cryptographic uses. There’s another world out there, though: non-cryptographic hashes. Sometimes you just need to figure out if you’ve already seen a string or structure. Sometimes you need a basic checksum. Sometimes you need a hash that’s just fast and can fit into a 32 bit integer. I’ll run through the state of the art in the world of non-cryptographic hashing — what your best options are, how they compare in terms of CPU and memory usage, and how they work. Who takes it? Whose mixing function reigns supreme? Let’s find out. * I’m saying “five”, but realistically I’m going to cover as many modern options as I can fit into the time available. Let’s say “five plus or minus two” in reality.
Using FIDO U2F Two Factor Authentication with Yubi Key
 
10:41
Join CryptoDad as he walks you through the setup of a YubiKey device for enabling 2-factor Authentication. You can find out more about Yubico here: https://www.yubico.com/ If you would like to purchase a Yubico product, consider using my affiliate link: YubiKey 4 Nano: https://amzn.to/2Qzc6Qn YubiKey NEO: https://amzn.to/2MwvxpE YubiKey 4: https://amzn.to/2p9wE5s Be sure and join the CryptoDad for his “Live Q & A from LA” every Friday night at 6:00 PM PST https://www.youtube.com/CryptoDad/live Hot affiliate Links: Try the Brave Browser: https://brave.com/rex704 Buy a Ledger Here: https://www.ledgerwallet.com/r/6057 Social Media links Twitter: https://twitter.com/The_CryptoDad Facebook: https://www.facebook.com/TheCryptoDad YouTube: https://www.youtube.com/CryptoDad Additional Affiliate Links Set up a Coinbase account here and get $10 Free bitcoin: https://www.coinbase.com/join/5930320a2ae354526ebf4fe1 Join Tube Buddy to improve your channel: https://www.tubebuddy.com/thecryptodad Set up a Binance account: https://www.binance.com/?ref=11783993 Buy or sell bitcoins on Localbitcoins.com: https://localbitcoins.com/country/US?ch=rack Buy, sell, or trade your bitcoins for cool stuff on Paxful: https://paxful.com/roots/buy-bitcoin/index?affiliate=RGzQvN89QAL Support CryptoDad’s Channel Donate Bitcoin: 3MssiN2oYf3fThvMUfVGziPdnkG1Bp7JQP Donate Ethereum: 0xEB5DF9A76e24516c49fBaBb082906E87242Fb315 Donate Litecoin: MVTh6FECgK17wRZ8Mi4gkRPpCM5j3xrCot Donate VertCoin: 3CyFak27g5DernPEBttQ3fCS5uhTfu524G
Views: 2005 Rex Kneisley
Stop enterprise network credential theft with StrongNet
 
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This video describes how StrongNet protects high-privilege network accounts from credential theft. Below is a transcript of the voiceover audio: While the “bring your own device” trend has increased threats to data security, this trend also allows employees to work when they want, how they want, and where they want. That’s a good way to increase employee satisfaction. Flexibility increases the speed and quality of decision-making by making data more available. That makes you more competitive. Similarly, although a porous network perimeter makes IT security people nervous, making enterprise computing assets more available has increased demand for those services while decreasing the cost of providing them. Furthermore, combining the roles of “software developer” and “IT operations” has helped IT to better serve the business. By deploying new services to the cloud at a fraction of the time and cost, line of business software developers are increasing their strategic value. StrongNet is operations- and developer-friendly and stays in the background until a critical threat is detected. Further, StrongNet stops advanced threats such as rootkits and firmware attacks that elude anti-virus products. Put all of this together and it’s clear that IT Security is a business enabler.  It’s IT’s job to protect the business against internal and external threats. And that job has gotten tougher in the face of well-funded, sophisticated adversaries. However, underinvestment in defensive computer security technologies has made the problem harder than it should be. By relying on old standards, such as static passwords and traditional antivirus programs, you’re putting your business at risk. You also have to manage a wide range of device types and operating systems. If any of those devices get access without being under your management, you can’t be certain you’re secure. It’s even possible for high-value targets to be compromised by Advanced Persistent Threats such as boot-level attacks. The best way to secure data is to use encryption and strong authentication. For access control, the security profile and identity of a computer is often just as relevant as the identity of the user. But current solutions don’t allow you to enforce all of these controls. StrongNet changes the game. StrongNet protects your high-value data assets by taking advantage of underutilized hardware security features present in most enterprise-class mobile devices. StrongNet consists of software components that are easy to deploy and configure. StrongNet components include a trusted server-side web application, and client-side system software, that periodically perform a cryptographic challenge-response protocol. StrongNet integrates remote platform attestation into your existing identity and access systems so you can enforce high-assurance data protection and high-integrity mobile computing, even for sensitive network accounts. StrongNet integrates seamlessly with Active Directory and PKI environments to protect your High-Value Assets. StrongNet secures mobile computing by covering the bases: It continuously enforces security policy in hardware, firmware, and software. It ensures that sensitive data are always encrypted, everywhere. And it enables strong authentication of users and computers. In short, StrongNet brings government-class, high-assurance endpoint security to the private sector. StrongNet uses Measurement Bound Keys to guarantee that user and computer credentials are non-exportable and are only valid while the host is compliant with your security policy. If the host’s defensive posture changes, then access to existing credentials is immediately lost. This means StrongNet will protect your IT assets against sophisticated attacks such as Pass the Hash, rootkits, and other advanced persistent threats. StrongNet even ensures that sensitive data and credentials residing on mobile devices stay protected while the device is disconnected or offline. And interoperability with a range of identity standards, security protocols, and partner solutions makes certain that StrongNet deploys seamlessly and has low total cost of ownership. Don’t forget that IT is a strategic asset. Your competitors know this, and well-funded adversaries including nation-states know it, too, just as they know the value of enterprise data. Use StrongNet to protect the technology resources that make your business competitive. To learn more about StrongNet, please reach us at [email protected], or find us at www.jwsecure.com.
Views: 72 J W Secure Inc
What is MESSAGE AUTHENTICATION? What does MESSAGE AUTHENTICATION mean?
 
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What is MESSAGE AUTHENTICATION? What does MESSAGE AUTHENTICATION mean? MESSAGE AUTHENTICATION meaning - MESSAGE AUTHENTICATION definition - MESSAGE AUTHENTICATION explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. SUBSCRIBE to our Google Earth flights channel - https://www.youtube.com/channel/UC6UuCPh7GrXznZi0Hz2YQnQ In information security, message authentication or data origin authentication is a property that a message has not been modified while in transit (data integrity) and that the receiving party can verify the source of the message. Message authentication does not necessarily include the property of non-repudiation. Message authentication is typically achieved by using message authentication codes (MACs), authenticated encryption (AE) or digital signatures. Some cryptographers distinguish between "message authentication without secrecy" systems -- which allow the intended receiver to verify the source of the message, but don't bother hiding the plaintext contents of the message -- from authenticated encryption systems. A few cryptographers have researched subliminal channel systems that send messages that appear to use a "message authentication without secrecy" system, but in fact also transmit a secret message.
Views: 585 The Audiopedia
PCI Requirement 4.1.1 – Ensure Wireless Network Transmitting CHD Use Strong Encryption
 
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Learn more at https://kirkpatrickprice.com/video/4-1-1-ensure-wireless-network-transmitting-chd-connected-cde-use-strong-encryption/ Wireless networks are a part of our everyday technology environment. It’s almost impossible to get away from it, be it your cell phone, laptop, watch, tablet, television…the list goes on and on. Wireless networks are extremely prevalent to our culture. Think about how many restaurants you go to that have tableside payment. How does your payment get processed? Over a wireless network. That’s where PCI Requirement 4.1.1 comes into play. It states, “Ensure wireless networks transmitting cardholder data or connected to the cardholder data environment use industry best practices to implement strong encryption for authentication and transmission.” Wireless networks that use strong cryptography make it less likely for an attacker to eavesdrop on the network’s communications or to compromise the network. Industry best practices must be in use to ensure that appropriate encryption methodology and strength are implemented. An example of weak encryption would be WEP; this doesn’t mean you can’t use WEP within your environment, but you cannot use it to protect information in transit. Stay Connected Twitter: https://twitter.com/KPAudit LinkedIn: https://www.linkedin.com/company/kirkpatrickprice-llc Facebook: https://www.facebook.com/kirkpatrickprice/ More Free Resources PCI Demystified: https://kirkpatrickprice.com/pci-demystified/ Blog: https://kirkpatrickprice.com/blog/ Webinars: https://kirkpatrickprice.com/webinars/ Videos: https://kirkpatrickprice.com/video/ White Papers: https://kirkpatrickprice.com/white-papers/ About Us KirkpatrickPrice is a licensed CPA firm, PCI QSA, and a HITRUST CSF Assessor, registered with the PCAOB, providing assurance services to over 600 clients in more than 48 states, Canada, Asia, and Europe. The firm has over 12 years of experience in information security and compliance assurance by performing assessments, audits, and tests that strengthen information security and internal controls. KirkpatrickPrice most commonly provides advice on SOC 1, SOC 2, HIPAA, HITRUST CSF, PCI DSS, ISO 27001, FISMA, and CFPB frameworks. For more about KirkpatrickPrice: https://kirkpatrickprice.com/ Contact us today: 800-770-2701 https://kirkpatrickprice.com/contact/
Views: 109 KirkpatrickPrice
MAC (message authentication code ) in cryptography network system
 
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MAC (message authentication code ) in cryptography network system in hindi full explanation .
Views: 4948 kysupport
PCI Requirement 4.1 – Use Strong Cryptography & Security Protocols to Safeguard Sensitive CHD
 
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Learn more at https://kirkpatrickprice.com/video/pci-requirement-4-1-use-strong-cryptography-security-protocols-safeguard-sensitive-chd-transmission/ If your organization transmits sensitive cardholder data over an open or public network, that data must be encrypted using strong cryptography and security protocols, according to PCI Requirement 4.1. Examples of open, public networks include the Internet, Bluetooth, cell phones/GSM, wireless Internet, etc. The purpose of this requirement is to prevent attackers from obtaining data while in transit, which is a common practice. Best practices for safeguarding sensitive cardholder data during transmission include: • Only use trusted keys and certificates associated with the encryption. If a certificate has expired or is not issued by a trusted source, do not accept it. • Any security protocols in use should only support secure versions or configurations; if not, the known vulnerabilities of a protocol could be exploited by an attacker. This also prevents an insecure connection. Any connection that could result in an insecure connection cannot be accepted. An example of an insecure protocol is WEP, which cannot be used for security. • The encryption strength is appropriate for the encryption methodology in use. • Documentation should define all places where cardholder data is transmitted or received over open, public networks. • Documentation should outline a process for acceptance of trusted keys and certificates, how the implemented security protocols only support secure versions or configurations, and why the encryption strength is appropriate. Stay Connected Twitter: https://twitter.com/KPAudit LinkedIn: https://www.linkedin.com/company/kirkpatrickprice-llc Facebook: https://www.facebook.com/kirkpatrickprice/ More Free Resources PCI Demystified: https://kirkpatrickprice.com/pci-demystified/ Blog: https://kirkpatrickprice.com/blog/ Webinars: https://kirkpatrickprice.com/webinars/ Videos: https://kirkpatrickprice.com/video/ White Papers: https://kirkpatrickprice.com/white-papers/ About Us KirkpatrickPrice is a licensed CPA firm, PCI QSA, and a HITRUST CSF Assessor, registered with the PCAOB, providing assurance services to over 600 clients in more than 48 states, Canada, Asia, and Europe. The firm has over 12 years of experience in information security and compliance assurance by performing assessments, audits, and tests that strengthen information security and internal controls. KirkpatrickPrice most commonly provides advice on SOC 1, SOC 2, HIPAA, HITRUST CSF, PCI DSS, ISO 27001, FISMA, and CFPB frameworks. For more about KirkpatrickPrice: https://kirkpatrickprice.com/ Contact us today: 800-770-2701 https://kirkpatrickprice.com/contact/
Views: 227 KirkpatrickPrice
Message Digest
 
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Recorded with https://screencast-o-matic.com please like and subscribe my channel thank you
Views: 688 Dr. Manish Potey
What is SSL / TLS ? What is HTTPS ? Types , Different Signs , Advantages and Disadvantages of SSL
 
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Lesson 5 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 Video of Digital Certificate and Digital Signature : https://www.youtube.com/watch?v=7ZG4E_WU2OI Like our page on facebook : https://www.facebook.com/guidetohacking/ This video includes : What is SSL ? What is TLS ? what is HTTPS ? difference between SSL and TLS , difference between SSL and HTTPS , types of SSL , advantages and disadvantages of SSL , should you buy SSL ? what does these symbols in address bar mean : red icon and a strikethrough on the HTTPS text , HTTPS grey with a yellow triangle in the center , green padlock icon and green HTTPS text , green text and the name of the company in green in address bar means name of company along with HTTPS or SSL . Types of SSL certificates : Domain Validated certificates (DV), Organization Validated certificate (OV) and Extended Validation certificates (EV) . Should you trust SSL ceriticate for giving your confidential information ? Can a phishing website or fake login page have SSL ? How to recognise different types of SSL certificates ? website i showed in video for bad ssl or for checking invalid ceritificates or expired certificates : https://badssl.com/ command i used in video for checking nodes : tracert [website name or server IP] #SSL #TLS #HTTPS
USENIX Security '17 - Phoenix: Rebirth of a Cryptographic Password-Hardening Service
 
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Russell W. F. Lai, Friedrich-Alexander-University Erlangen-Nürnberg, Chinese University of Hong Kong; Christoph Egger and Dominique Schröder, Friedrich-Alexander-University Erlangen-Nürnberg; Sherman S. M. Chow, Chinese University of Hong Kong Password remains the most widespread means of authentication, especially on the Internet. As such, it is the Achilles heel of many modern systems. Facebook pioneered using external cryptographic services to harden password-based authentication in a large scale. Everspaugh et al. (USENIX Security ’15) provided the first comprehensive treatment of such a service and proposed the PYTHIA PRF-Service as a cryptographically secure solution. Recently, Schneider et al. (ACM CCS ’16) proposed a more efficient solution which is secure in a weaker security model. In this work, we show that the scheme of Schneider et al. is vulnerable to offline attacks just after a single validation query. Therefore, it defeats the purpose of using an external crypto service in the first place and it should not be used in practice. Our attacks do not contradict their security claims, but instead show that their definitions are simply too weak. We thus suggest stronger security definitions that cover these kinds of real-world attacks, and an even more efficient construction, PHOENIX, to achieve them. Our comprehensive evaluation confirms the practicability of PHOENIX: It can handle up to 50% more requests than the scheme of Schneider et al. and up to three times more than PYTHIA. View the full program: https://www.usenix.org/sec17/program
Views: 294 USENIX
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: 27870 Vidder, Inc.
Cryptography: Key Exchange
 
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https://asecuritysite.com/cryptobook/crypto05
Views: 622 Bill Buchanan OBE
#1 What is Crypt Analysis | Network Security | Lecture 5 in Urdu/Hindi
 
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What is Cryptanalysis? what is Cryptography? What is Cryptology? Why we use these terms in the network security?
Views: 730 Focus Group
MD5 Encryption - Hindi
 
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MD5 Encryption (MD5 एन्क्रिप्शन) RSA डेटा सिक्योरिटी प्रयोग करके स्ट्रिंग के MD5 हैश की गणना करना, Inc.'s MD5 मैसेज-Digest Algorithm, और वो हैश रिटर्न करता है (यह एन्क्रिप्टिंग टेकनीक का एक तरीका है)। Syntax : string md5 ( string $str [, bool $raw_output = false ] ) एन्क्रिप्टिंग पासवर्ड्स में प्रयोग करता है और उनको डेटाबेस में संचित करता है।