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Breaking ECDSA (Elliptic Curve Cryptography) - rhme2 Secure Filesystem v1.92r1 (crypto 150)
 
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We are going to recover a ECDSA private key from bad signatures. Same issue the Playstation 3 had that allowed it to be hacked. -=[ 🔴 Stuff I use ]=- → Microphone:* https://amzn.to/2LW6ldx → Graphics tablet:* https://amzn.to/2C8djYj → Camera#1 for streaming:* https://amzn.to/2SJ66VM → Lens for streaming:* https://amzn.to/2CdG31I → Connect Camera#1 to PC:* https://amzn.to/2VDRhWj → Camera#2 for electronics:* https://amzn.to/2LWxehv → Lens for macro shots:* https://amzn.to/2C5tXrw → Keyboard:* https://amzn.to/2LZgCFD → Headphones:* https://amzn.to/2M2KhxW -=[ ❤️ Support ]=- → per Video: https://www.patreon.com/join/liveoverflow → per Month: https://www.youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w/join -=[ 🐕 Social ]=- → Twitter: https://twitter.com/LiveOverflow/ → Website: https://liveoverflow.com/ → Subreddit: https://www.reddit.com/r/LiveOverflow/ → Facebook: https://www.facebook.com/LiveOverflow/ -=[ 📄 P.S. ]=- All links with "*" are affiliate links. LiveOverflow / Security Flag GmbH is part of the Amazon Affiliate Partner Programm. #CTF #Cryptography
Views: 34190 LiveOverflow
RustConf 2017 - Fast, Safe, Pure-Rust Elliptic Curve Cryptography
 
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Fast, Safe, Pure-Rust Elliptic Curve Cryptography by Isis Lovecruft & Henry De Valence This talk discusses the design and implementation of curve25519-dalek, a pure-Rust implementation of operations on the elliptic curve known as Curve25519. We will discuss the goals of the library and give a brief overview of the implementation strategy. We will also discuss features of the Rust language that allow us to achieve competitive performance without sacrificing safety or readability, and future features that could allow us to achieve more safety and more performance. Finally, we will discuss how -dalek makes it easy to implement complex cryptographic primitives, such as zero-knowledge proofs.
Views: 4565 Rust
Elliptic Curve Back Door - Computerphile
 
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The back door that may not be a back door... The suspicion about Dual_EC_DRBG - The Dual Elliptic Curve Deterministic Random Bit Generator - with Dr Mike Pound. EXTRA BITS: https://youtu.be/XEmoD06_mZ0 Nothing up my sleeve Numbers: https://youtu.be/oJWwaQm-Exs Elliptic Curves: https://youtu.be/NF1pwjL9-DE https://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: https://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 214960 Computerphile
Side channel attacks on implementations of Curve25519 | Yuval Yarom and Daniel Genkin | RWC 2018
 
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Technical talks from the Real World Crypto conference series.
Views: 1916 Real World Crypto
Data Security using Cryptography and Steganography | Matlab Final Year Project
 
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Data Security using Cryptography and Steganography| Matlab Final Year Project To get this project in ONLINE or through TRAINING Sessions, Contact: JP INFOTECH, #37, Kamaraj Salai,Thattanchavady, Puducherry -9. Mobile: (0)9952649690, Email: [email protected], Website: https://www.jpinfotech.org As use of computer networks and internet is growing very fast and admiring day by day, information security is become a major concern in computer networks. There is always risk in violation of network security which leads a need of an efficient and simple way of securing the electronic documents from being read or used by people other than who are authorized to do it. Encryption is one of the security technique widely used to ensure secrecy. Encryption is an entirely mathematical process that takes in data, performs some predefined mathematical operations on the data, and then outputs the result. In this paper, we propose Elliptical curve cryptography algorithm for data encryption. Elliptical curve cryptography (ECC) is a public key encryption technique based on elliptic curve theory that can be used to create faster, smaller, and more efficient cryptographic keys. However if any eavesdropper detects the presence of encrypted data he or she can try several attacks in order to get the original data. So there is a need to provide a three layer approach for better security. That’s why this work presents a security system using combination of cryptography and steganography to enhance the security and for authentication purpose, use Diffie-Hellman key exchange algorithm.
Views: 94 jpinfotechprojects
Perfect Forward Secrecy Side Effects
 
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Perfect Forward Secrecy (PFS) is a great security feature that protects client and server data from being decrypted in the future. In this video, John discusses a few of the things to keep in mind as you move toward PFS ciphers.
Views: 5139 F5 DevCentral
Kernel Recipes 2018 - TPM enabling the Crypto Ecosystem for enhanced Security - James Bottomley
 
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For decades, all laptops have come with a TPM. Now with Microsoft forcing the transition to the next generation, Linux faces a challenge in that all the previous TPM 1.2 tools don’t work with 2.0. Having to create new tools for TPM 2.0 also provides the opportunity to integrate the TPM more closely into our current crypto systems and thus give Linux the advantage of TPM resident and therefore secure private keys. This talks will provide the current state of play in using TPM 2.0 in place of crypto sticks and USB keys for secure key handling; including the algorithm agility of TPM 2.0 which finally provides a support for Elliptic Curve keys which have become the default recently. This talk will provide an overview of current TSS (Trusted computing group Software Stack) for TPM 2.0 implementation on Linux, including a discussion of the two distinct Intel and IBM stacks with their relative strengths and weaknesses. We will then move on to integration of the TSS into existing crypto system implementations that allow using TPM resident keys to be used with common tools like openssl, gnutls, gpg, openssh and gnome-keyring. We will report on the current state of that integration including demonstrations of how it works and future plans. The ultimate goal is to enable the seamless use of TPM resident keys in all places where encrypted private keys are currently used, thus increasing greatly the security posture of a standard Linux desktop.
Views: 242 hupstream
Ashley Williams - How I Convinced the World's Largest Package Manager to Use Rust, and So Can You!
 
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I made one of my favorite pull requests ever on December 17, 2016: rust-www/pulls/634: add npm to friends page On any given day, the npm registry, a repository of packages primarily for JavaScript and Node.js, serves around 350,000,000 package downloads. The npm services team is small and this once little Node.js service, the lifeblood of the modern web development workflow, is now a huge set of microservices- and starting in late 2016, it’s no longer just Node.js- it’s running production Rust. In this talk, I’ll tell the story of how I convinced my manager and team to give Rust a chance. Along the way, I’ll talk about the critical challenges that the npm registry services encounter on a daily basis, the patterns we’ve adopted to cope with the heavy operational load, and how they are well suited to be solved with Rust. I’ll also highlight the unique aspects of Rust that make it an pleasure to learn and teach, as well as how it is a strong technical candidate for replacing Node.js (hint: Tokio!). At the end of the talk, you will have a keen understanding of what problems Rust is good at solving and feel motivated and empowered to start the conversation about bringing Rust into your own organization. Ashley Williams https://twitter.com/ag_dubs https://github.com/ashleygwilliams https://users.rust-lang.org/users/ag_dubs/activity
Views: 29712 Rust
Recover RSA private key from public keys - rhme2 Key Server (crypto 200)
 
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Using the greatest common divisor (GCD) to factorize the public modulo into the secret primes, so we can forge a RSA signature. Source for the rhme2 challenges: https://github.com/Riscure/Rhme-2016 -=[ 🔴 Stuff I use ]=- → Microphone:* https://amzn.to/2LW6ldx → Graphics tablet:* https://amzn.to/2C8djYj → Camera#1 for streaming:* https://amzn.to/2SJ66VM → Lens for streaming:* https://amzn.to/2CdG31I → Connect Camera#1 to PC:* https://amzn.to/2VDRhWj → Camera#2 for electronics:* https://amzn.to/2LWxehv → Lens for macro shots:* https://amzn.to/2C5tXrw → Keyboard:* https://amzn.to/2LZgCFD → Headphones:* https://amzn.to/2M2KhxW -=[ ❤️ Support ]=- → per Video: https://www.patreon.com/join/liveoverflow → per Month: https://www.youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w/join -=[ 🐕 Social ]=- → Twitter: https://twitter.com/LiveOverflow/ → Website: https://liveoverflow.com/ → Subreddit: https://www.reddit.com/r/LiveOverflow/ → Facebook: https://www.facebook.com/LiveOverflow/ -=[ 📄 P.S. ]=- All links with "*" are affiliate links. LiveOverflow / Security Flag GmbH is part of the Amazon Affiliate Partner Programm. #CTF #Cryptography
Views: 48124 LiveOverflow
Perfect Forward Secrecy Inspection Visibility
 
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In this Lightboard Lesson, Jason Rahm covers a specific implementation of the ultimate passive inspection architecture that David Holmes shared on the lightboard several months back. This solution, developed by Extrahop, utilizes F5 BIG-IP LTM iRules to share the session keys with the Extrahop Discovery Appliance via a sideband connection. Detailed write-up: https://devcentral.f5.com/articles/lightboard-lesson-perfect-forward-secrecy-inspection-visibility-32503
Views: 1421 F5 DevCentral
Charm: A Framework for Rapidly Prototyping Cryptosystems
 
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Over the past decade the cryptographic research community has made impressive progress in developing new cryptographic protocols. This work has advanced our understanding of basic technologies such as public key encryption, key agreement, and digital signatures. Moreover, it has given us entirely new paradigms for securing data, such as Attribute Based Encryption, anonymous credentials and techniques for computing on encrypted data. Despite these advances, only a trickle of new cryptographic technology has filtered down to the systems community in the form of useable cryptographic implementations. Even supported prototype research implementations are few and far between. This is a major loss for researchers, to say nothing of industry and the open source community. In this talk we introduce Charm, an extensible Python-based framework for rapidly prototyping cryptographic systems. Charm was designed from the ground up to support the development of advanced cryptographic schemes. It includes support for multiple cryptographic settings, an extensive library of re-usable code, along with the infrastructure necessary to quickly implement interactive protocols. Our framework also provides a series of specialized tools that enable different cryptosystems to interoperate. This paper describes Charm and the various capabilities provided through our modular architecture. Through several examples, we show that our approach produces a potential order of magnitude decrease in code size compared to standard C implementations, while inducing an acceptable performance impact.
Views: 234 Microsoft Research
The Twofish Encryption Algorithm
 
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Twofish is a block cipher by Counterpane Labs, published in 1998. It was one of the five Advanced Encryption Standard (AES) finalists, and was not selected as AES. Twofish has a 128-bit block size, a key size ranging from 128 to 256 bits, and is optimized for 32-bit CPUs. Currently there is no successful cryptanalysis of Twofish. https://www.schneier.com/academic/twofish/ This animation is designed by Abdullah AlQahtani [email protected]
Views: 12420 Hemaya Group
AES Security Encryption for Client Document Manager
 
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AES Security Encryption for Client Document Manager
Views: 236 David Lapierre
A5 Optimization Process
 
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Using 1 Pillar testcase to show how the algorithm works.
Views: 6 Jiahuan He
Creating project and installing a package using the Swift Package Manager
 
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Using SPM for installing a package after generating a new project. Instagram: https://www.instagram.com/biutthapa/ Twitter: https://twitter.com/biutthapa Web: https://biutthapa.com/
Views: 143 Swiftaholic
Network Security - AES Selection Criteria
 
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Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Module 2 - Symmetric Key Cryptography In this module we present the basic mechanism of symmetric key crytography algorithms, discuss the DES and AES standard, describe the criteria for selecting AES standard, present the block cipher operating modes and discuss how the block swapping attacks and replay attacks can be prevented and detected. Learning Objectives • Understand the criteria for selecting crypto algorithms • Perform cryptoanalysis on simple ciphers • Select operating modes for symmetric encryption and to prevent block swapping and replay attacks • Understand DES and AES standards and their buildig blocks Subscribe at: https://www.coursera.org
Views: 81 intrigano
Post-Quantum Cryptography with Nick Sullivan and Adam Langley: GCPPodcast 123
 
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Original post: https://www.gcppodcast.com/post/episode-123-post-quantum-cryptography-with-nick-sullivan-and-adam-langley/ Nick Sullivan, and Adam Langley join Melanie and Mark to provide a pragmatic view on post-quantum cryptography and what it means to research security for the potential of quantum computing. Post-quantum cryptography is about developing algorithms that are resistant to quantum computers in conjunction with “classical” computers. It’s about looking at the full picture of potential threats and planning on how to address them using a diversity of types of mathematics in the research. Adam and Nick help clarify the different terminology and techniques that are applied in the research and give a practical understanding of what to expect from a security perspective.
Views: 1206 Google Cloud Platform
The Golden Key: FBI vs Apple iPhone - Computerphile
 
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Should Apple unlock a terrorists iPhone for the FBI? Professor Ross Anderson explains how this is a "Pandora's Box" situation. Buffer Overflow Attacks: https://youtu.be/1S0aBV-Waeo $5 Computer: https://youtu.be/WR0ghM3U0M4 AI Safety: https://youtu.be/IB1OvoCNnWY EXTRA BITS: https://youtu.be/6iGxNku7ilw http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 280674 Computerphile
HTTPS & TLS in 2016: Security practices from the front lines - AppSecUSA 2016
 
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Recorded at AppSecUSA 2016 in Washington, DC https://2016.appsecusa.org/ HTTPS & TLS in 2016: Security practices from the front lines Implementing strong security for Internet‐facing services has grown more challenging and more complex over the past two years. With protocol‐level vulnerabilities like FREAK, BEAST, CRIME, POODLE, & LOGJAM, Ops teams are forced to reevaluate long‐held assumptions about foundation system network code. What are the right tradeoffs between modern network security requirements versus widespread legacy client and user interoperability? How do we apply these to traditional Apache and Nginx servers, mobile app web services, and non‐browser infrastructure like libcurl, proxies, API endpoints, and load balancers? And what's the deal with Curve25519, ChaCha/Poly1305, LibSodium, BoringSSL, and LibreSSL? Here, we present a practitioner's crash guide to modern site and web service endpoint encryption using HTTPS. We cover the "TLS 101" (and 201) fundamentals of certificates: ECDSA vs RSA, 2K vs 4K, ephemeral Diffie‐ Hellman (elliptic curve versus static), Domain Validation vs Extended Validation. We'll talk about intermediate and root authorities (and why Superfish is such a problem), and then look at some best practices around https including certificate transparency (CT), pinning (HPKP), and strict transport security (HSTS). Lastly, we'll give updates from the OpenSSL 1.1 audit, and point to well curated configuration guides and recipes for https and TLS. Speakers Eric Mill Eric Mill is a software engineer and advocate for a web that is safe and secure for all of its users. Eric is currently an advisor and engineer in a federal government agency, and has previously worked at the Sunlight Foundation on open data infrastructure and policy. Kenneth White Director, Open Crypto Audit Project Kenneth White is a security researcher whose work focuses on networks and global systems. He is Director of the Open Crypto Audit Project (OCAP), currently managing a large‐scale audit of OpenSSL on behalf of the Linux Foundation's Core Infrastructure Initiative. In his day job, White leads an applied R&D team for Dovel Labs, working with federal clients on mission system security and cloud automation. - Managed by the official OWASP Media Project https://www.owasp.org/index.php/OWASP_Media_Project
Views: 2333 OWASP
Bitcoin Q&A: What is a private key?
 
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What is a private key? How are they generated and formatted? Are private keys transmitted when you make a transaction? What are the chances of collision? Will quantum computing making it easy to guess private keys? Does implementing quantum-proof algorithms require an overhaul of the code? Learn more from the following chapters of 'Mastering Bitcoin': https://github.com/bitcoinbook/bitcoinbook/blob/f8b883dcd4e3d1b9adf40fed59b7e898fbd9241f/ch04.asciidoc https://github.com/bitcoinbook/bitcoinbook/blob/f8b883dcd4e3d1b9adf40fed59b7e898fbd9241f/ch05.asciidoc Key to address code: https://github.com/bitcoinbook/bitcoinbook/blob/35f1c62f192dd0eaf1b1c462f88a46e0f5942e16/code/key-to-address-ecc-example.py These questions are from the MOOC 9.3 and 9.4 sessions, as well as the (rescheduled) April Patreon Q&A session, which took place on March 2nd, March 9th, and May 5th 2018 respectively. Andreas is a teaching fellow with the University of Nicosia. The first course in their Master of Science in Digital Currency degree, DFIN-511: Introduction to Digital Currencies, is offered for free as an open enrollment MOOC course to anyone interested in learning about the fundamental principles. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop RELATED: Bitcoin: Where the Laws of Mathematics Prevail - https://youtu.be/HaJ1hvon0E0 Advanced Bitcoin Scripting Part 1: Transactions & Multisig - https://youtu.be/8FeAXjkmDcQ Advanced Bitcoin Scripting Part 2: SegWit, Consensus, and Trustware - https://youtu.be/pQbeBduVQ4I Cryptographic primitives - https://youtu.be/RIckQ6RBt5E Nonces, mining, and quantum computing - https://youtu.be/d4xXJh677J0 Public keys vs. addresses - https://youtu.be/8es3qQWkEiU Re-using addresses - https://youtu.be/4A3urPFkx8g What happens to our bitcoins during a hard fork? - https://youtu.be/sNR76fWd7-0 How do mnemonic seeds work? - https://youtu.be/wWCIQFNf_8g Multi-signature and distributed storage - https://youtu.be/cAP2u6w_1-k What is Segregated Witness? - https://youtu.be/dtOjjB4mD8k SegWit and fork research - https://youtu.be/OorLoi01KEE Forkology: A Study of Forks for Newbies - https://youtu.be/rpeceXY1QBM MimbleWimble and Schnorr signatures - https://youtu.be/qloq75ekxv0 Protocol development security - https://youtu.be/4fsL5XWsTJ4 Migrating to post-quantum cryptography - https://youtu.be/dkXKpMku5QY Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin. Follow on Twitter: @aantonop https://twitter.com/aantonop Website: https://antonopoulos.com/ He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters. THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8 [NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8 MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042 [NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388 Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/ Subscribe to the channel to learn more about Bitcoin & open blockchains! Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/) Outro Graphics: Phneep (http://www.phneep.com/) Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
Views: 10222 aantonop
Building a Swift Package Manager Helper Application
 
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I'm working on a little side project to help me understand Swift Package Manager, so I decided to hop on Twitch and flesh it out a little! I worked with the GitHub API to get tags and their associated data, and expanded on my (first ever) macOS app UI to show me what versions I have. Try my little project out at https://github.com/dokun1/swift-package-manager-helper :-)
Views: 104 David Okun
Cryptography is a systems problem (or) 'Should we deploy TLS'
 
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Cryptography is a systems problem (or) 'Should we deploy TLS' Given by Matthew Green, Johns Hopkins University
Views: 5788 Dartmouth
How to Properly Both Encrypt and Compress a File
 
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View this demo to see how to encrypt and compress a file. Want to see more tech tutorials? Subscribe to the Learning Tree Tech Tips and Tricks playlist: https://www.youtube.com/playlist?list=PLXrVfv7YnPHvbMWTl_91n645Me9E83rjo SUBSCRIBE to the LearningTree YouTube channel: https://www.youtube.com/learningtree Additional ways to get latest tech industry news: -Subscribe to blog: https://www.blog.learningtree.com -Follow on Twitter @LearningTree -Follow on LinkedIn https://www.linkedin.com/company/learning-tree-international -Like on Facebook https://www.facebook.com/LearningTreeIntl/ For more training, visit https://www.learningtree.com/ Learning Tree is recognized as Top 20 IT Training Company for 2016. From single courses to large enterprise solutions, Learning Tree can help your organization overcome skills gaps and accomplish individual and organization objectives.
Diceware & Passwords - Computerphile
 
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How do you pick a secure password that's memorable but truly random? Dr Mike Pound explains Diceware The Diceware website: http://bit.ly/c_diceware (Diceware is a trademark of A G Reinhold) Another great thing to do with dice is play games :) -Sean Password Cracking: https://youtu.be/7U-RbOKanYs How to Choose a Password: https://youtu.be/3NjQ9b3pgIg https://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: https://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 165079 Computerphile
What are security issues in Cryptography
 
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www.hiteshChoudhary.com www.newdemy.com What are security issues in Cryptography? Why there is a need of Cryptography is a very important question. In the earlier times when one need to transfer any sensitive information, one can write it on paper and can seal it along with manual monitoring system i.e. one person guarding or protecting the information. But after the invention of radio, things got changed. One can tune into your radio without your knowledge and can collect all information. Just collecting the information is not a bug issue but one can modify the information as well. Information security attack is a broad term, so let’s make a few scenario examples to clarify it out on a broad level. Case 1 User A wants to transmit a file to user B. The file may contain some sensitive information like Bank passwords. User C, who is not authorized to read the file, is somehow monitor the transfer and captures a copy of the file during transmission. Case 2 User A wants to transmit a file to user B. User A gives some bank details to open and close new accounts. User C, intercepts the file and add User C’s information to be added and gets a new unauthorized bank account. User C can also delete some valid account information by altering the information. User B updates the details according to information passed by User A, having no idea that information was tempered on its way. Case 3 User A is just relaxing in this case. User C, who is an unauthorized person, just creates his own message and act as a User A and passes the information to User B. User B accepts the message and act according the message. It is totally up to User C that what he wants to do. User C can format all the information or add some backdoor information in the system and so on. Case 4 User C works for the company and due to some reasons C was fires from the company. User A asks the User B, who is an administrator in the company to lock all the access of User C’s account. But User C, creates some useless traffic and delays the message to reach to user B. User c makes a final access to the account and downloads the entire information to local or permanent access. After completing the work he allows the message to get passed. Case 5 A message is sent from user A to user B to purchase xyz share or xyz amount. Things didn’t went in right direction for User A and investment lose value. Now user A denies that he ever passed any message to user B to purchase any share. These are some of the broadly covered situations explaining the need of cryptography. Cryptography gives us a solution to all of these problems. We just have to utilize the concept and put it in some form of codes or protocols to implement it.
Views: 2583 Hitesh Choudhary
RustConf 2017 - Opening Keynote: Make Productivity a Core Value of Rust
 
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Opening Keynote by Aaron Turon, Carol Nichols and Niko Matsakis Aaron, Carol, and Niko will deliver an update on the state of all things Rust. You don't want to miss it!
Views: 10238 Rust
Cryptographic Problems in Algebraic Geometry Lecture
 
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AGNES is a series of weekend workshops in algebraic geometry. One of our goals is to introduce graduate students to a broad spectrum of current research in algebraic geometry. AGNES is held twice a year at participating universities in the Northeast. Lecture presented by Kristin Lauter.
Views: 1852 Brown University
Eric McCorkle: A Public Key Trust Infrastructure for FreeBSD - BSDCan 2018
 
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This talk describes a proposed design for a public-key trust infrastructure for the FreeBSD operating system which manages the notion of delegated trust in the form of public-key cryptographic signatures. It is designed to integrate easily with existing userland applications as well as other similar components such as secure/trusted boot and the NetBSD VeriExec infrastructures, and to provide a workable foundation for future developments. Additionally, it is designed in such a way that existing post-quantum signature schemes can be used practically. This talk gives a detailed overview of a proposed design for a public-key trust infrastructure for the FreeBSD operating system. This proposal has been developed in response to discussions in various venues, including the FreeBSD mailing lists as well as plenary sessions at previous BSD conferences. It aims to design, develop, and ultimately deploy a powerful and general trust infrastructure that will hopefully become the foundation for new developments in operating system security and provide FreeBSD and the rest of the BSD family with new tools for growth. This infrastructure has a number of potential uses, some of which include signed kernels and modules, executable signing, and remote delegation of capabilities. The proposed trust infrastructure manages trust delegation through public-key cryptographic signatures. It proposes a kernel-based interface for managing public key trust and verifying signatures at runtime, as well as a convention for defining the trust configuration when building a system from source. It includes a design for continuing a secure chain of custody from the boot loader through to the kernel and in to runtime, and includes several mechanisms for defining the root-of-trust for the boot loader and kernel. It also includes proposed standards for signing executables, as well as a tool for batch-signing and signing with ephemeral keys. Additionally, the proposed infrastructure is designed to integrate with and work alongside the NetBSD VeriExec infrastructure, and both systems benefit from doing so. Finally, the proposed infrastructure incorporates considerations for utilization of post-quantum cryptography in its design. This talk is intended to be a review of the proposed design and to elicit serious consideration and feedback. Input and suggestions are welcome, and will be considered as possible modifications to the design. http://www.bsdcan.org/2018/schedule/events/943.en.html
Views: 203 BSDCan
Rsa algo basic steps
 
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in.this video basic concept of rsa is explain with example. Tips- to remember public key formula u can use keyword pen i.e public key (e,n) for selecting e go with smallest prime number ....
Views: 79 Berozgar engineer
RustConf 2018 - Integrating Rust into Tor... by Isis Lovecruft & Chelsea Komlo
 
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RustConf 2018 - Integrating Rust into Tor: Successes and Challenges by Isis Lovecruft & Chelsea Komlo In 2016, The Tor Project's network team decided to experiment with writing existing and new functionality in Rust. Since then, this experiment has turned into a team initiative, with multiple team members adding infrastructure and new functionality with the goal of integrating Rust components directly into the core Tor code base. By 2019, we will have several features tha will be only supported in Rust. With this effort has come many challenges and questions, some which have remained unresolved. In this talk, we propose walking through this timeline, and sharing what we have learned, what was good, and what was challenging about integrating Rust into a 10+ year old security-critical C codebase. We will also offer ideas about what could make this easier going forward, and what we are excited and hoping to see in future Rust versions. Overall, we at The Tor Project are big fans of Rust. We are looking forward to sharing what we have learned and accomplished over the last two years.
Views: 306 Confreaks
NEC3: Introduction to the ECC
 
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Our most popular NEC3 course is now available as eLearning. Through seven assessed modules you will study the philosophy of the NEC and gain an in-depth understanding of the NEC3 Engineering and Construction Contract (ECC). Also includes free access to the 'Introduction to the NEC3' plus 6 month eView to the ECC contract and Guidance Notes.
Views: 2887 NEC Contracts
2FA: Two Factor Authentication - Computerphile
 
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Just what's going on when your email provider wants to send you a text message? Dr Mike Pound talks about multi-factor authentication. Password Cracking: https://youtu.be/7U-RbOKanYs The End of Time (Unix Time) - Numberphile: https://youtu.be/QJQ691PTKsA http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 214261 Computerphile
AES Algorithm using 512 Bit Key Implemented for Secure Communication
 
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The main aim of this project is to provide stronger security for communication over the Internet by enhancing the strength of the AES algorithm. Rijndael’s algorithm was selected as the Advanced Encryption Standard. The AES algorithm was believed to provide much more security without any limitations. But, recently some breaking methods on the AES have been found by cryptanalysts. In AES algorithm, the number of rounds involved in the encryption and decryption depends on the length of the key and the number of block columns. So, the number of rounds is increased to improve the strength of the AES. The strength of the AES algorithm is enhanced by increasing the key length to 512 bit and thereby the number of rounds is increased in order to provide a stronger encryption method for secure communication. Code optimization is done in order to improve the speed of encryption and decryption using the 512 bit AES. Reference Paper: AES Algorithm using 512 Bit Key Implemented for Secure Communication Author’s Name: S.Radhika and A.Chandra Sekar Source: International Journal of Advanced Research in Computer Science Year:2010 Looking for full design, contact us +91 7904568456 by whatsapp or [email protected]
How to Choose a Password - Computerphile
 
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How do you pick the perfect password? Is it as simple as XKCD make out, or is there more to it? Dr Mike Pound follows on from his password cracking video. Password Cracking on a 4x Titan X Beast: https://youtu.be/7U-RbOKanYs EXTRA BITS: https://youtu.be/kFQ_W8zAplc Indie Game Developer: https://youtu.be/da5RoS4w5YU Indie App Developer: https://youtu.be/yVRtJbXQsL8 http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: http://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com
Views: 758750 Computerphile
Cryptography for Industrial Control Systems
 
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In this Monthly Briefing, Ray Potter, CEO of SafeLogic will provide a first-hand assessment of the challenges and opportunities associated with the application of cryptography to industrial control systems. SafeLogic is the creator of cryptographic engines used by major hardware and software vendors. In addition to Mr. Potter, ICS-ISAC Chair Chris Blask will provide an update on the Center and related issues. Designed to benefit both the technical & non-technical attendee the Member Briefing series takes a no-nonsense approach to addressing issues that cut across industry, sector, and job function. So whether you are hands-on ICS, administrator, or C-level decision-maker you will find valuable information that you can take and implement to further secure your industrial control systems
Views: 155 Chris Blask
RustConf 2017 - Improving Rust Performance Through Profiling and Benchmarking by Steve Jenson
 
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Improving Rust Performance Through Profiling and Benchmarking by Steve Jenson This talk will compare and contrast common industry tool support for profiling and debugging Rust applications. We'll discuss our experiences finding and fixing performance problems in a production Rust application.
Views: 3217 Rust
Solupay ECC demonstration
 
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Julie from Retail Data Systems demos the Solupay Electronic Check Conversion (ECC) processing system on the ISS45 v8 POS system.
Views: 861 solupay
The State of Crypto in Python
 
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Python has a complex past with cryptography. There are half a dozen major frameworks built on at least three separate C implementations, each with their own strengths and weaknesses and in various states of maintenance. In our development of an open source key management system for OpenStack (Barbican), our team has spent time investigating the major options. This presentation will review the current state of the art and discuss the future of crypto in Python including a new library being developed by a group of Python devs aimed at unifying and expanding the support for modern crypto in the Python ecosystem. Additional advice will be provided for developers and security professional around which libraries provide the best support for an application particular crypto needs. Speaker: Jarret Raim, Cloud Security Product Manager, Rackspace
Views: 59 LASCON
How to Encrypt Data in Drupal
 
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Learn how to configure the Encrypt, Key, and Townsend Security's Key Connection modules to protect private data in Drupal. By using Townsend Security's Alliance Key Manager, Drupal websites can meet data privacy compliance requirements (PCI DSS, HIPAA, etc.) and manage their risk of a data breach. Townsend Security offers free developer licenses of Alliance Key Manager to members of their Developer Program. Links: Encrypt - drupal.org/project/encrypt Key - drupal.org/project/key Key Connection - drupal.org/project/townsec_key Alliance Key Manager - townsendsecurity.com/products/encryption-key-management Developer Program - info.townsendsecurity.com/developer-partner-request
Views: 1330 Townsend Security
Dark Wallet meeting : Interview with Mihai Alisie
 
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As a former pro poker player, Mihai Alisie experienced the markets first hand giving him a glimpse of how pure finance operates. He is the chief editor for Bitcoin magazine, and Dark Wallet project manager. Mihai shares with us his latest project; Egora, opensource software for easily deploying crypto enabled stores at any URL from anywhere at no cost. Egora eventually aims to empower market participants with the whole range of crypto tools of trade and business for the future's new class of entrepreneurs.
Views: 1399 Solene Cravic
SHA1 length extension attack on the Secure Filesystem - rhme2 Secure Filesystem (crypto 100)
 
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The first challenge I solved for the embedded hardware CTF by riscure. It implements a Secure Filesystem which prevents you from readeing files without knowing the correct token for a file. Load the challenge on your own board: https://github.com/Riscure/Rhme-2016 -=[ 🔴 Stuff I use ]=- → Microphone:* https://amzn.to/2LW6ldx → Graphics tablet:* https://amzn.to/2C8djYj → Camera#1 for streaming:* https://amzn.to/2SJ66VM → Lens for streaming:* https://amzn.to/2CdG31I → Connect Camera#1 to PC:* https://amzn.to/2VDRhWj → Camera#2 for electronics:* https://amzn.to/2LWxehv → Lens for macro shots:* https://amzn.to/2C5tXrw → Keyboard:* https://amzn.to/2LZgCFD → Headphones:* https://amzn.to/2M2KhxW -=[ ❤️ Support ]=- → per Video: https://www.patreon.com/join/liveoverflow → per Month: https://www.youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w/join -=[ 🐕 Social ]=- → Twitter: https://twitter.com/LiveOverflow/ → Website: https://liveoverflow.com/ → Subreddit: https://www.reddit.com/r/LiveOverflow/ → Facebook: https://www.facebook.com/LiveOverflow/ -=[ 📄 P.S. ]=- All links with "*" are affiliate links. LiveOverflow / Security Flag GmbH is part of the Amazon Affiliate Partner Programm. #CTF #Cryptography
Views: 16102 LiveOverflow
Privacy, Security, and Cryptography
 
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Launchpad Accelerator Engineer Bootcamp 2018 → http://bit.ly/2G1w5py Ananth Raghunathan is a computer scientist broadly interested in cryptography, security, and machine learning. At Google, he works in the security and privacy research team in Google Brain on differential privacy, applied crypto, and topics at the intersection of security and machine learning. About Launchpad Accelerator: Launchpad Accelerator is an acceleration program for the world’s top startups. Founders work closely with Google and Alphabet product teams and experts to solve specific technical challenges and optimize their businesses for growth with machine learning. Accelerator Startups are selected to be a part of the four month product acceleration program. Each startup is paired with a Google product manager to accelerate their product development, working alongside Google’s ML research and development teams. Learn more at → https://goo.gl/qFTrKD About Accelerator’s Engineering Bootcamp: Accelerator’s Engineering Bootcamp brings together each startup’s project team for a four-day event in San Francisco to learn best practices in experimenting, building, and implementing advanced tech within their startup. The teams are composed of Founders and VPs along with developers, data scientists, and product managers. Watch more in this playlist → http://bit.ly/2G1w5py Subscribe to Launchpad to learn all about startups → http://bit.ly/Launchpad9
AES
 
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AES
Views: 24 Siva Photon
Lightning Talk: Sophia Gold on An Intellectual History of Automatic Differentiation
 
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Meetup: http://bit.ly/2uT9yC2 Slides: http://bit.ly/2hi3Lmn Audio: http://bit.ly/2vnKGWd ----------------------------------------------------------------------------------- Sponsored and hosted by Two Sigma (@twosigma) ----------------------------------------------------------------------------------- Description ------------------ An Intellectual History of Automatic Differentiation traces the research surrounding a collection of techniques for computing derivatives without using either approximation or the manipulation of subscript-filled equations used to terrorize high school students. While its simplicity gives this method the mystery of "deep magic," it has its roots in work on differential equations in the late 19th century; inspired Alonzo Church's discovery of the untyped lambda calculus; influenced the development of functional programming, concurrency, and Unix in the 1970s; and has been recently rediscovered with applications to type theory, modelling stochastic processes, and training recurrent neural networks. References - Computer Aided Manipulation of Symbols, Fred McBride 1971 - Coroutines and Networks of Parallel Processes, Gilles Kahn & David MacQueen, 1977 - Squinting at Power Series, Doug McIlroy, 1989 - Generating Power of Lazy Semantics, Jerzy Karczmarczuk,1997 - Power Series, Power Serious, Doug McIlroy, 1998 - Calculus in Coinductive Form, Pavlovic & Escardo 1998 - Functional Differentiation of Computer Programs, Jerzy Karczmarczuk, 2000 - Adjoint Codes in Functional Framework, Jerzy Karczmarczuk, 2000 - Perturbation Confusion and Referential Transparency: Correct Functional Implementation of Forward-Mode AD, Pearlmutter & Siskind, 2005 - Reverse-Mode AD in a Functional Framework: Lambda the Ultimate Backpropagator, Pearlmutter & Siskind, 2008 - The Differential Lambda-Calculus, Ehrhard & Regnier, 2001 - Efficient Implementation of a Higher-Order Language with Built-In AD, Pearlmutter & Siskind, 2016 Bio ----- Sophia Gold has lived many lives: after studying to be a studio artist she has worked at a large quantitative asset manager, developed a consultancy designing embedded systems, and performed professionally as a contortionist. These days she spends a lot of time programming in Clojure and Haskell and, despite being impressively undereducated in higher mathematics, primarily focuses on developing new techniques for automatic differentiation and other problems in computer algebra.
Views: 1678 PapersWeLove
AES Algorithm - Part 3 - 192 Bit Encryption/Decryption
 
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Understand 192Bit Encryption and Decryption in AES algorithm, the easy way using MS Excel. Download "AES192-EncrDecr.xlsx" from the http://netzts.in/card-reconciliation-downloads/cryptography-blog-downloads/ Download "NIST.FIPS.197.pdf" from https://csrc.nist.gov/publications/fips listed under number 197 AES Algorithm - Part 1 - Key Expansion video link : https://youtu.be/MTZe1HB0fJ4 AES Algorithm - Part 2 - 128 Bit Encryption/Decryption video link: https://youtu.be/OEW4Ho1i6Wk Watch our 5 part DES Algorithm videos from the links given below: 1. DES Algorithm Part-1 preliminaries of Encryption : https://www.youtube.com/watch?v=JT91GJs1cjA 2. DES Algorithm - Part 2 - The KEYs : https://www.youtube.com/watch?v=mn5y93zxMs0 3. DES Algorithm - Part 3 – Encryption : https://www.youtube.com/watch?v=Lzi6W1XGKeA 4. DES Algorithm - Part 4 – Decryption : https://www.youtube.com/watch?v=Bj47jX1i4-M 5. DES Algorithm - Part 5 - 3DES : https://www.youtube.com/watch?v=CvpuGr5kERQ
pinhole dns
 
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@DevCentral's Jason Rahm discusses use cases for iRules in a pinhole dns scenario. https://devcentral.f5.com/articles/pinhole-pinpoint-dns
Views: 995 F5 DevCentral
System Security
 
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Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 7561 nptelhrd