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Session Keys
 
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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: 3715 Udacity
Encryption and Key Management in AWS
 
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Sensitive customer data needs to be protected throughout AWS. This session discusses the options available for encrypting data at rest in AWS. It focuses on several scenarios, including transparent AWS management of encryption keys on behalf of the customer to provide automated server-side encryption and customer key management using partner solutions or AWS CloudHSM. This session is helpful for anyone interested in protecting data stored in AWS.
Views: 36849 Amazon Web Services
Symmetric Key and Public Key Encryption
 
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Modern day encryption is performed in two different ways. Check out http://YouTube.com/ITFreeTraining or http://itfreetraining.com for more of our always free training videos. Using the same key or using a pair of keys called the public and private keys. This video looks at how these systems work and how they can be used together to perform encryption. Download the PDF handout http://itfreetraining.com/Handouts/Ce... Encryption Types Encryption is the process of scrambling data so it cannot be read without a decryption key. Encryption prevents data being read by a 3rd party if it is intercepted by a 3rd party. The two encryption methods that are used today are symmetric and public key encryption. Symmetric Key Symmetric key encryption uses the same key to encrypt data as decrypt data. This is generally quite fast when compared with public key encryption. In order to protect the data, the key needs to be secured. If a 3rd party was able to gain access to the key, they could decrypt any data that was encrypt with that data. For this reason, a secure channel is required to transfer the key if you need to transfer data between two points. For example, if you encrypted data on a CD and mail it to another party, the key must also be transferred to the second party so that they can decrypt the data. This is often done using e-mail or the telephone. In a lot of cases, sending the data using one method and the key using another method is enough to protect the data as an attacker would need to get both in order to decrypt the data. Public Key Encryption This method of encryption uses two keys. One key is used to encrypt data and the other key is used to decrypt data. The advantage of this is that the public key can be downloaded by anyone. Anyone with the public key can encrypt data that can only be decrypted using a private key. This means the public key does not need to be secured. The private key does need to be keep in a safe place. The advantage of using such a system is the private key is not required by the other party to perform encryption. Since the private key does not need to be transferred to the second party there is no risk of the private key being intercepted by a 3rd party. Public Key encryption is slower when compared with symmetric key so it is not always suitable for every application. The math used is complex but to put it simply it uses the modulus or remainder operator. For example, if you wanted to solve X mod 5 = 2, the possible solutions would be 2, 7, 12 and so on. The private key provides additional information which allows the problem to be solved easily. The math is more complex and uses much larger numbers than this but basically public and private key encryption rely on the modulus operator to work. Combing The Two There are two reasons you want to combine the two. The first is that often communication will be broken into two steps. Key exchange and data exchange. For key exchange, to protect the key used in data exchange it is often encrypted using public key encryption. Although slower than symmetric key encryption, this method ensures the key cannot accessed by a 3rd party while being transferred. Since the key has been transferred using a secure channel, a symmetric key can be used for data exchange. In some cases, data exchange may be done using public key encryption. If this is the case, often the data exchange will be done using a small key size to reduce the processing time. The second reason that both may be used is when a symmetric key is used and the key needs to be provided to multiple users. For example, if you are using encryption file system (EFS) this allows multiple users to access the same file, which includes recovery users. In order to make this possible, multiple copies of the same key are stored in the file and protected from being read by encrypting it with the public key of each user that requires access. References "Public-key cryptography" http://en.wikipedia.org/wiki/Public-k... "Encryption" http://en.wikipedia.org/wiki/Encryption
Views: 451835 itfreetraining
Information & Network Security Lecture --  Key Distribution Techniques | public-secret | (Eng-Hindi)
 
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-~-~~-~~~-~~-~- Please watch: "PL vs FOL | Artificial Intelligence | (Eng-Hindi) | #3" https://www.youtube.com/watch?v=GS3HKR6CV8E -~-~~-~~~-~~-~-
Views: 26034 Well Academy
Key Management and Distribution (CSS322, L21, Y14)
 
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Introduction to key management; session and master keys; number of keys needed; decentralised key distribution. Course material via: http://sandilands.info/sgordon/teaching
Views: 3225 Steven Gordon
CryptoAuthentication Symmetric Session Key Exchange
 
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Symmetric Session Key Exchange using the Atmel ATSHA204
Views: 2829 CryptoAuthentication
Cryptographic Key Management APIs - Graham Steel
 
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Most developers use cryptography via an application program interface (API) either to a software library or a hardware device where keys are stored and all cryptographic operations take place. Designing such interfaces so that they offer flexible functionality but cannot be abused to reveal keys or secrets has proved to be extremely difficult, with a number of published vulnerabilities in widely-used crypto APIs appearing over the last decade. This lecture will focus on the example of RSA PKCS#11, the most widely used interface for cryptographic devices, but will allow us to develop principles and concepts that apply to most crypto APIs. We will demonstrate a tool, Tookan, which can reverse engineer the particular configuration of PKCS#11 in use on some device under test, construct a model of the device's functionality, and call a model checker to search for attacks. If an attack is found, it can be executed automatically on the device. We will also look at attacks related to the implementation of cryptography. This lecture follows naturally from the general introduction to security APIs, but is independent in the sense that it is disjoint and self-contained. Learning objectives basic design of cryptographic APIs logical flaws in key management cryptographic flaws in implementations The lecture was delivered at SecAppDev 2013 in Leuven, Belgium, by Graham Steel. Graham Steel holds a masters in mathematics from the University of Cambridge and a PhD in informatics from the University of Edinburgh. He is currently a researcher at INRIA, the French national agency for computer science research, where he is part of the Prosecco project team based in central Paris. Steel's main research interests are in formal analysis of information security and applied cryptography. His current work on cryptographic API verification involves using formal techniques to construct and analyse abstract models of cryptographic device interfaces. In addition to international conference and journal publications, his recent results have featured in Wired magazine and the New York Times. He has taught courses on security APIs at Tsinghua University (Beijing) and the University of Venice (Italy) as well as organising a Dagstuhl seminar on the subject.
Views: 5132 secappdev.org
New Crypto Key Storage Options in the Google Cloud Platform (Cloud Next '18)
 
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Efficient key management and data-at-rest encryption in GCP is possible today through Cloud KMS. Using Cloud KMS, applications have access to industry compliant symmetric key cryptography to either directly encrypt blocks of data or manage the keys used in other GCP services. But what if you need more? Come to this session to learn about the great new enhancements coming to Cloud KMS and key management in general. SEC210 Event schedule → http://g.co/next18 Watch more Security sessions here → http://bit.ly/2zJTZml Next ‘18 All Sessions playlist → http://bit.ly/Allsessions Subscribe to the Google Cloud channel! → http://bit.ly/NextSub
Authentication & Key Management (Marcus Burton, CWNP)
 
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Marcus Burton, Director of Product Development at CWNP, discusses AKM
Views: 10264 CWNPTV
Introduction to Encryption and Key Management
 
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Check out our Definitive Guide to Encryption Key Management Fundamentals - http://tsec.io/2sukQOn --- Transcription: Hi, I’d like to introduce you to the basic concepts around encryption and proper key management. Encryption is like a safe with the encryption keys being the combination to that safe. If you have data that needs to be protected, using strong encryption can protect your data, even from the most ingenious hackers. But if you leave the combination to that safe just lying around, even the strongest safe can’t protect your data. That is why every encryption key should be logically or physically separated from the sensitive data, itself encrypted by a key encryption key inside of a key manager, with the physical and logical environment closely monitored, and user access to the keys strictly controlled. Only then can your encryption do the job of guarding your data. Follow along and learn more about the science of keeping your encrypted data safe.
Views: 208 Townsend Security
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: 65752 Udacity
Effective Key Management in Dynamic Wireless Sensor Networks
 
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Effective Key Management in Dynamic Wireless Sensor Networks To get this project in ONLINE or through TRAINING Sessions, Contact: JP INFOTECH, Old No.31, New No.86, 1st Floor, 1st Avenue, Ashok Pillar, Chennai -83.Landmark: Next to Kotak Mahendra Bank. Pondicherry Office: JP INFOTECH, #45, Kamaraj Salai,Thattanchavady, Puducherry -9.Landmark: Next to VVP Nagar Arch. Mobile: (0) 9952649690, Email: [email protected], web: www.jpinfotech.org, Blog: www.jpinfotech.blogspot.com Recently, wireless sensor networks (WSNs) have been deployed for a wide variety of applications, including military sensing and tracking, patient status monitoring, traffic flow monitoring, where sensory devices often move between different locations. Securing data and communications requires suitable encryption key protocols. In this paper, we propose a certificateless-effective key management (CL-EKM) protocol for secure communication in dynamic WSNs characterized by node mobility. The CL-EKM supports efficient key updates when a node leaves or joins a cluster and ensures forward and backward key secrecy. The protocol also supports efficient key revocation for compromised nodes and minimizes the impact of a node compromise on the security of other communication links. A security analysis of our scheme shows that our protocol is effective in defending against various attacks.We implement CL-EKM in Contiki OS and simulate it using Cooja simulator to assess its time, energy, communication, and memory performance.
Views: 736 jpinfotechprojects
Managing Your PGP Keys
 
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You're watching Infosec Bytes, a crash course in information security for journalists. We're based at the Centre for Investigative Journalism in London and supported by the Logan Foundation. This video shows you how to manage your PGP keys on Tails. Make sure to watch our overview videos on PGP: https://www.youtube.com/playlist?list=PLOZKbRUo9H_pCTg8XdvkyGZ_lJbl1AA5X To consult with an expert through CIJ, or to arrange a CIJ training session, get in touch: [email protected] To support the Center for Investigative Journalism with a donation, please visit http://tcij.org/donate. And if you want to watch our other videos, please go to http://infosecbytes.org or subscribe to our channel below. --- Animations by Jose Passarelli --- Infosec Bytes would not have been possible without invaluable criticism and feedback from reviewers: Marie Gutbub Information Security Trainer/Journalist https://shiromarieke.github.io/ Jens Kubieziel Security Researcher https://kubieziel.de/blog/ Fabio Natali Software Developer/Information Security Trainer https://fabionatali.com/ Christian Vandrei Privacy Activist Dr. Richard Tynan Technologist https://twitter.com/richietynan Daniel Anti-Freeze Information Security Trainer https://twitter.com/_anti_freeze_ --- Licensing and Attribution "String Pad.wav" (https://www.freesound.org/people/johnnypanic/sounds/361843/) by johnnypanic (https://www.freesound.org/people/johnnypanic/) is licensed under CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/) Edited from the original. "SS BOOM 01.wav" (https://www.freesound.org/people/sandyrb/sounds/84346/) by sandyrb (https://www.freesound.org/people/sandyrb/) is licensed under CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/). Edited from the original. "button_press.wav" (https://www.freesound.org/people/gabriel4cv/sounds/237343/) by gabriel4cv (https://www.freesound.org/people/gabriel4cv/) is licensed under CC 0 (https://creativecommons.org/publicdomain/zero/1.0/). Edited from the original.
Views: 5826 Infosec Bytes
Sensus: Securing Utility Networks with IBM Encryption Key Management
 
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Sensus provides smart grid communication systems and smart meters for water, gas, electric and distribution automation industries. When you have intelligent devices coming onto your smart grid networks, thousands of them a day in large deployments, you need to make sure that all of the communications are secure. Sensus partners with security leaders like IBM to provide advanced key management and elliptical curve based asymmetry cryptography used to provide digital certificates and stronger authentication for endpoints. Learn more about IBM Security: http://ibm.co/ibmsecurity Learn more about IBM Security Key Lifecycle Mananger: http://ibm.co/1hQQdBY
Views: 1048 IBM Security
Encrypting and Decrypting Files with PGP
 
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You're watching Infosec Bytes, a crash course in information security for journalists. We're based at the Centre for Investigative Journalism in London and supported by the Logan Foundation. In this tutorial we show you how to use PGP to encrypt and decrypt files, and how to work with PGP signatures. Make sure to watch our overview videos on PGP: https://www.youtube.com/playlist?list=PLOZKbRUo9H_pCTg8XdvkyGZ_lJbl1AA5X To consult with an expert through CIJ, or to arrange a CIJ training session, get in touch: [email protected] To support the Center for Investigative Journalism with a donation, please visit http://tcij.org/donate. And if you want to watch our other videos, please go to http://infosecbytes.org or subscribe to our channel below. To read further about PGP, start here: https://www.gnupg.org/doc --- Animations by Jose Passarelli --- Infosec Bytes would not have been possible without invaluable criticism and feedback from reviewers: Marie Gutbub Information Security Trainer/Journalist https://shiromarieke.github.io/ Jens Kubieziel Security Researcher https://kubieziel.de/blog/ Fabio Natali Software Developer/Information Security Trainer https://fabionatali.com/ Christian Vandrei Privacy Activist Dr. Richard Tynan Technologist https://twitter.com/richietynan Daniel Anti-Freeze Information Security Trainer https://twitter.com/_anti_freeze_ --- Licensing and Attribution "String Pad.wav" (https://www.freesound.org/people/johnnypanic/sounds/361843/) by johnnypanic (https://www.freesound.org/people/johnnypanic/) is licensed under CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/) Edited from the original. "SS BOOM 01.wav" (https://www.freesound.org/people/sandyrb/sounds/84346/) by sandyrb (https://www.freesound.org/people/sandyrb/) is licensed under CC BY 3.0 (https://creativecommons.org/licenses/by/3.0/). Edited from the original. "button_press.wav" (https://www.freesound.org/people/gabriel4cv/sounds/237343/) by gabriel4cv (https://www.freesound.org/people/gabriel4cv/) is licensed under CC 0 (https://creativecommons.org/publicdomain/zero/1.0/). Edited from the original.
Views: 7118 Infosec Bytes
Network Security - Modular Arithmetic
 
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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. Asymmetric Key Cryptography In this module we will learn the modular arithmetic, the Euler Totient Theorm, the RSA Asymmetric Crypto Algorithm, use OpenSSL to realize the basic operations of RSA Crypto Algorithm, and Diffie-Hellman Symmetric Key Exchange Protocol to derive session keys. Learning Objectives • Use Diffi-Hellman algorithm for Key Exchange • Apply RSA with OpenSSL for signing and encryption • Describe RSA Asymmetric Crypto Algorithm Subscribe at: https://www.coursera.org
Views: 110 intrigano
Ephemeral Diffie-Hellman with RSA (DHE-RSA)
 
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Details and basic calculator: http://asecuritysite.com/encryption/dhe
Views: 2398 Bill Buchanan OBE
CloudShark SSL Key Management
 
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For more info, visit: http://appliance.cloudshark.org/ It's a problem that has existed since the dawn of data encryption, yet no one has solved. Until now. What do you do when you have certificates that you need to distribute to your team to look at encrypted data? How do you troubleshoot encrypted network traffic without having to give users access to your keys on their local machines? The makers of CloudShark, the world's first packet Capture Management System, brings you the world's first ever Key Management System. Take control of your encryption keys, and let your team view and collaborate on encrypted data captures without ever giving out a single one.
Symmetric Key Distrubition with Public Key Crypto (CSS441, L20, Y15)
 
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Tradeoffs of centralised and decentralised key distribution. Performance of public vs symmetric key crypto in OpenSSL. Course material via: http://sandilands.info/sgordon/teaching
Views: 997 Steven Gordon
Kerberos - authentication protocol
 
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At 4:30: A mistake: step 3: When the file server gets the token, it "decrypts" (not "encrypts") the token with the secret key shared with TGS. In Greek mythology, Kerberos is a dog with three heads. But today I will not talk about the dog. Kerberos is an authentication protocol for client/server applications. I will demonstrate with an example how Kerberos works. Keep in mind, Kerberos implements private key encryption. 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: 60192 Sunny Classroom
Applying Java’s Cryptography
 
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Learn how to control Java’s cryptographic features to protect your application and any data that you manage. This session explains what different cryptography features do, what threats are addressed by each feature, and where the configuration takes place. Topics include certificates, code signatures, authenticating dynamic JVM languages, TLS control, perfect forward security, and transparent JPA encryption. Author: Erik Costlow Erik Costlow is a product manager in Oracle's Java Platform Group and a regular contributor to the Java Platform Group PM blog. Erik also works closely with industry on Oracle's Java Root Certificate Program to ensure highest program quality. Previously Erik was employed at HP where he influenced design of the Fortify security analysis suite used by software developers across the world. View more trainings by Erik Costlow at https://www.parleys.com/author/erik-costlow Find more related tutorials at https://www.parleys.com/category/developer-training-tutorials
Views: 10520 Oracle Developers
Manage keys secrets and certificates for secure apps and data with Azure Key Vault  - BRK3059
 
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You need to safeguard and manage cryptographic keys and secrets used by cloud applications and services. Azure Key Vault can help you securely store and manage application secrets and keys backed by a Hardware Security Module (HSM). Join this session to get best practices on secure key management and simplify tasks for certificate management with Key Vault.
Views: 492 Microsoft Ignite
Cryptography: Secret Key Encryption
 
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https://asecuritysite.com/cryptobook/crypto02
Views: 1575 Bill Buchanan OBE
Public Key, Secret Key and Key Exchange
 
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http://asecuritysite.com/csn11117/unit02
Views: 557 Bill Buchanan OBE
Intro to Digital Certificates
 
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This tutorial starts with a review of Symmetric and Asymmetric (PKI) Encryption. It discusses self signed certificates and how an SSL certificate is used in a Client-Server web communication session.
Views: 77667 Dave Crabbe
Encryption and Key Management in AWS (SEC304) | AWS re:Invent 2013
 
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This session will discuss the options available for encrypting data at rest and key management in AWS. It will focus on two primary scenarios: (1) AWS manages encryption keys on behalf of the customer to provide automated server-side encryption; (2) the customer manages their own encryption keys using partner solutions and/or AWS CloudHSM. Real-world customer examples will be presented to demonstrate adoption drivers of specific encryption technologies in AWS. Netflix Jason Chan will provide an overview of how NetFlix uses CloudHSM for secure key storage.
Views: 4876 Amazon Web Services
AWS re:Invent 2017: A Deep Dive into AWS Encryption Services (SID329)
 
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AWS Encryption Services provide an easy and cost-effective way to protect your data in AWS. In this session, you learn about leveraging the latest encryption management features to minimize risk for your data.
Views: 9178 Amazon Web Services
Distributing Public Keys with Public Key Authority (CSS441, L20, Y15)
 
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Using a public key authority to distribute public keys. Course material via: http://sandilands.info/sgordon/teaching
Views: 4526 Steven Gordon
PGP Encryption The Ultimate Guide
 
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PGP Encryption The Ultimate Guide PGP Encryption The Ultimate Guide video thoroughly explains exactly what PGP Encryption is, and how to use PGP Encryption yourself, to securely and anonymously communicate over the internet. PGP or Pretty Good Privacy is software developed for the purpose of providing good, fast and accessible encryption to anyone who might need it. PGP – Encryption Thanks to its unique encryption method, PGP is now considered a standard in encryption industry. This is done by first compressing the data to increase the speed at which it can be sent and also to help in preventing pattern attacks. There is a special, temporary session key created for this which allows for a fast encryption of compressed cyphertext. After the session key is created, it is encrypted using recipient’s public key and sent along with the cyphertext. Decryption is the same as encryption, done in reverse. The public key decryption which takes a lot of time to perform is instead done on a smaller session key, before it can be used to decipher cyphertext. This allows for both quick and safe encryption available in the form of freeware. Check out our full guide here : https://darkwebnews.com/pgp-guide/
Views: 1375 Dark Web News
Crypto Key Managment System - automated key and certificate distribution
 
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An introduction to CKMS: delivering automated and secure crypto key distribution to any endpoint.
Views: 894 CRYPTOMAThIC
Securing Digital Data using 256-bit Multimodal Biometrics based Cryptographic Key
 
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Securing Digital Data using 256-bit Multimodal Biometrics based Cryptographic Key To get this project in Online or through training sessions Contact: Chennai Office: JP INFOTECH, Old No.31, New No.86, 1st Floor, 1st Avenue, Ashok Pillar, Chennai – 83. Landmark: Next to Kotak Mahendra Bank / Bharath Scans. Landline: (044) - 43012642 / Mobile: (0)9952649690 Pondicherry Office: JP INFOTECH, #45, Kamaraj Salai, Thattanchavady, Puducherry – 9. Landline: (0413) - 4300535 / (0)9952649690 Email: [email protected], Website: http://www.jpinfotech.org, Blog: http://www.jpinfotech.blogspot.com In this digital era, digital documents are widely used. The merits of digital documents are huge while its security and privacy are at large. Hence Cryptography is used to secure digital documents. Cryptography is a method of storing and transmitting data in a particular form so that only those for whom it is intended can read and process it. In this paper a novel idea is proposed, digital documents are encrypted using 256 bit cryptographic key which is generated by multimodal biometric system. This system uses Palmprint and Fingerprint as traits. The features of both traits were extracted and fused at feature level. This biometric based cryptographic key is unpredictable to an intruder as the intruder lacks the knowledge of physical traits of the user. By this proposed model confidentiality, integrity, availability mechanisms are achieved. This biometric based cryptographic security can be integrated to e-governance and ehealth for efficient management.
Views: 64 jpinfotechprojects
Public Key Infrastructure Fundamentals - Bart Preneel
 
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The function of a public key infrastructure (PKI) is to ensure secure delivery and management of public keys. Alternative trust models lead to different key architectures. Public keys are published by means of digitally signed certificates. A private key may be compromised, in which case the certificate containing the corresponding public key must be revoked. Many revocation methods are in current use. Publication of Certificate Revocation Lists (CRLs) and checking with an Online Certificate Status Protocol (OCSP) responder are best established. Learning objectives + learn the components of a public key infrastructure. + understand key delivery and management mechanisms. A lecture by Bart Preneel at SecAppDev 2013 in Leuven, Belgium. Professor Bart Preneel of KU Leuven heads the COSIC (COmputer Security and Industrial Cryptography) research group. His main research area is information security with a focus on cryptographic algorithms and protocols as well as their applications to both computer and network security, and mobile communications. He teaches cryptology, network security and coding theory at the K.U.Leuven and was visiting professor at the Ruhr Universitaet Bochum (Germany), the T.U.Graz (Austria), the University of Bergen (Norway), and the Universiteit Gent (Belgium). In '93-'94 he was a research fellow at the University of California at Berkeley. He has taught intensive courses around the world. He undertakes industrial consulting (Mastercard International, S.W.I.F.T., Proton World International,...), and participates in the work of ISO/IEC JTC1/SC27/WG2. Professor Preneel is Vice President of the International Association for Cryptologic Research (IACR) and co-founder and chairman of LSEC vzw (Leuven Security Excellence Consortium).
Views: 50722 secappdev.org
How SSL works tutorial - with HTTPS example
 
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How SSL works by leadingcoder. This is a full tutorial how to setup SSL that requires client certificate for reference: http://www.windowsecurity.com/articles/Client-Certificate-Authentication-IIS6.html .
Views: 1363583 tubewar
Entity Authentication and Symmetric Key Establishment - Bart Preneel
 
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Entity Authentication and Symmetric Key Establishment, by Bart Preneel Authentication methods are based on something known, owned, biometric, location or evidence of trusted third party authentication. + A password is a case of something known. Passwords are a vulnerable, but cheap and convenient way of authenticating an entity. Several techniques to augment their effectiveness are in use including challenge-response and one-time passwords. + Secure devices such as smart cards and USB tokens often combine the 'owned' with the 'known', since secret keys are locked in the token with a password or PIN code. However, within the broad category of secure tokens, trustworthiness is variable, depending on whether keys can be extracted, passwords can be eavesdropped or the device can be tampered with. + Biometry identifies a person via physical characteristics. + Location is often used as the sole authentication factor, but is insecure given the relative ease of spoofing IP or MAC addresses. + Multi-factor authentication is stronger than single-factor. + The Kerberos protocol uses a key distribution-based authentication server. Service consumers must authenticate with a central server to obtain a secret session key with service providers. Such schemes require a single sign-on to access servers across a trust domain. While public key cryptography is well suited to entity authentication, performance constraints often mandate a symmetric algorithm for encrypting data passed between systems. Key establishment should be linked to authentication, so that a party has assurances that a key is only shared with the authenticated party. The Diffie-Hellman key agreement protocol underlies a host of current technologies such as STS (Station-to-Station protocol) and IKE. Learning objectives Gain insight into + entity authentication protocols, + the benefits and limitations of authentication factors, + key establishment protocols, + why and how to use authentication servers. This lecture was delivered by Bart Preneel in Leuven on Tuesday February 11th at SecAppDev 2014. Professor Bart Preneel heads the COSIC (COmputer Security and Industrial Cryptography) research group at KU Leuven. His main research area is information security with a focus on cryptographic algorithms and protocols as well as their applications to both computer and network security, and mobile communications. He teaches cryptology, network security and coding theory at the KU Leuven and was visiting professor at the Ruhr Universitaet Bochum (Germany), the T.U.Graz (Austria), the University of Bergen (Norway), and the Universiteit Gent (Belgium). In '93-'94 he was a research fellow at the University of California at Berkeley. He has taught intensive courses around the world. He undertakes industrial consulting (Mastercard International, S.W.I.F.T., Proton World International,...), and participates in the work of ISO/IEC JTC1/SC27/WG2. Professor Preneel is Vice President of the International Association for Cryptologic Research (IACR) and co-founder and chairman of LSEC vzw (Leuven Security Excellence Consortium).
Views: 1416 secappdev.org
HDP-2.6.3 HDFS Transparent Encryption Using Ranger KMS
 
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We will discuss about HDFS transparent encryption using Ranger KMS service
Views: 1904 Hadoop Engineering
Public and Private Keys - CompTIA Security+ SY0-401: 6.3
 
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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 - - - - - For asymmetric encryption, you’ll need the public and private key pair for successful encryption and decryption. In this video, I’ll demonstrate the creation of a public and private key pair. - - - - - 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: 18458 Professor Messer
Sharkfest 2013 - Understanding Encryption Services Using Wireshark (Larry Greenblatt)
 
44:50
This session was delivered at Sharkfest 2013 - UC Berkeley, CA Many people equate cryptography with confidentiality, but today we use cryptographic algorithms to validate authenticity, integrity and non-repudiation of information as well. In this session Larry will use Wireshark to sniff a number of SSL handshakes, using different browsers, to explain how algorithms are negotiated and keys exchanged. The hardest part about encryption, key management will also be discussed including a description of PKI standards, using Wireshark to illustrate certificate signing and revocation using both Certificate Revocation Lists (CRL) and the Online Certificate Status Protocol (OCSP). Larry started his IT career in 1984 as a technician for MicroAge, cutting his teeth on IBM PC-based networks and Netware 86. After four years in the 90s working for CGI/IBM as a senior network consultant designing and supporting IPX, SNA and TCP/IP-based network solutions, Larry founded InterNetwork Defense, an information security training and consulting company, where he currently teaches CEH, CISM and CISSP training classes. Larry is also the co-author of the cryptography section for the CEH official study guide.
Views: 6752 Chris Greer
Cryptography Primer Session 2 – Symmetric Primitives
 
01:10:52
This will be the second of six cryptography primer sessions exploring the basics of modern cryptography. In this session, we’ll explore symmetric ciphers, primitives, and protocols – including AES, cipher modes, hash functions, and message authentication. Subsequent sessions (on alternating Fridays) are expected to include the following topics. Depending on the interests of the participants, other topics may be included or substituted. • Integer asymmetric functions including BigNums, Diffie-Hellman, RSA, and DSA • Non-integer asymmetric functions including elliptic curves and lattice-based systems • Protocol properties including forward secrecy, crypto agility, and certificate management • Applications including zero-knowledge, secret sharing, homomorphic encryption, and election protocols
Views: 190 Microsoft Research
How to Manage 3rd Party Signing Keys in Debian 9.0
 
17:29
The Crypto Dad shows you how to manage third party signing keys in Debian 9.0. Instead of adding third party keys using “Apt-Key Add” we go through a much more organized and robust method of managing third party signing keys and keeping them organized and separate from your Debian Apt repository keys. We use Sublime-Text as our example https://www.sublimetext.com/ More info of Apt-Key management: https://wiki.debian.org/SecureApt Donate Bitcoin: 1JBxwXG8P6PYKKsrHKzQduM8s8RoV3dnjr
Views: 441 Rex Kneisley
Network Security - Euler Totient Theorem
 
13:44
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. Asymmetric Key Cryptography In this module we will learn the modular arithmetic, the Euler Totient Theorm, the RSA Asymmetric Crypto Algorithm, use OpenSSL to realize the basic operations of RSA Crypto Algorithm, and Diffie-Hellman Symmetric Key Exchange Protocol to derive session keys. Learning Objectives • Use Diffi-Hellman algorithm for Key Exchange • Apply RSA with OpenSSL for signing and encryption • Describe RSA Asymmetric Crypto Algorithm Subscribe at: https://www.coursera.org
Views: 72 intrigano
Node.js API Authentication With JWT
 
23:01
In this overview we will take a look at Node.js and JSON web tokens. I will show you how to create a route to generate a token and use that token to make a request to a protected route. SPONSOR: Check out Coding Dojo - http://www.codingdojo.com/l/yt/tr CODE: Github Repo With Example https://github.com/bradtraversy/node_jwt_example 💖 BECOME A PATRON: Show support & get perks! http://www.patreon.com/traversymedia ONE TIME DONATIONS: http://www.paypal.me/traversymedia VISIT MY WEBISTE: Check Out My Udemy Courses http://www.traversymedia.com FOLLOW TRAVERSY MEDIA: http://www.facebook.com/traversymedia http://www.twitter.com/traversymedia http://www.instagram.com/traversymedia https://discord.gg/traversymedia
Views: 103762 Traversy Media
Network Security - Diffie Hellman Symmetric Key Exchange Protocol
 
06:58
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. Asymmetric Key Cryptography In this module we will learn the modular arithmetic, the Euler Totient Theorm, the RSA Asymmetric Crypto Algorithm, use OpenSSL to realize the basic operations of RSA Crypto Algorithm, and Diffie-Hellman Symmetric Key Exchange Protocol to derive session keys. Learning Objectives • Use Diffi-Hellman algorithm for Key Exchange • Apply RSA with OpenSSL for signing and encryption • Describe RSA Asymmetric Crypto Algorithm Subscribe at: https://www.coursera.org
Views: 97 intrigano
Introduction to Cryptography
 
09:42
Introduction to Cryptography
Views: 6242 livogroup
Software Encryption with ASP.NET
 
01:14:50
This covers Software Encryption with ASP.NET and incudes Private Key Encryption (3DES and AES), Public Key Encryption (RSA), Hashing (MD5, and so on), Diffie-Hellman, SFE, and Role-based Security. A tutorial is here: http://buchananweb.co.uk/2011_tut_encryption.pdf An HD Version is at: http://youtu.be/iw2bJs3pi-w
Views: 3001 Bill Buchanan OBE
Network Security - Understanding RSA with Open SSL
 
06:06
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. Asymmetric Key Cryptography In this module we will learn the modular arithmetic, the Euler Totient Theorm, the RSA Asymmetric Crypto Algorithm, use OpenSSL to realize the basic operations of RSA Crypto Algorithm, and Diffie-Hellman Symmetric Key Exchange Protocol to derive session keys. Learning Objectives • Use Diffi-Hellman algorithm for Key Exchange • Apply RSA with OpenSSL for signing and encryption • Describe RSA Asymmetric Crypto Algorithm Subscribe at: https://www.coursera.org
Views: 32 intrigano
An Efficient Certificateless Encryption for Secure Data Sharing in Public Cloud
 
12:16
To get this project in ONLINE or through TRAINING Sessions, Contact:JP INFOTECH, Old No.31, New No.86, 1st Floor, 1st Avenue, Ashok Pillar, Chennai -83. Landmark: Next to Kotak Mahendra Bank. Pondicherry Office: JP INFOTECH, #45, Kamaraj Salai, Thattanchavady, Puducherry -9. Landmark: Next to VVP Nagar Arch. Mobile: (0) 9952649690 , Email: [email protected], web: www.jpinfotech.org Blog: www.jpinfotech.blogspot.com An Efficient Certificateless Encryption for Secure Data Sharing in Public Cloud in java We propose a mediated certificateless encryption scheme without pairing operations for securely sharing sensitive information in public clouds. Mediated certificateless public key encryption (mCL-PKE) solves the key escrow problem in identity based encryption and certificate revocation problem in public key cryptography. However, existing mCL-PKE schemes are either inefficient because of the use of expensive pairing operations or vulnerable against partial decryption attacks. In order to address the performance and security issues, in this paper, we first propose a mCL-PKE scheme without using pairing operations. We apply our mCL-PKE scheme to construct a practical solution to the problem of sharing sensitive information in public clouds. The cloud is employed as a secure storage as well as a key generation center. In our system, the data owner encrypts the sensitive data using the cloud generated users’ public keys based on its access control policies and uploads the encrypted data to the cloud. Upon successful authorization, the cloud partially decrypts the encrypted data for the users. The users subsequently fully decrypt the partially decrypted data using their private keys. The confidentiality of the content and the keys is preserved with respect to the cloud, because the cloud cannot fully decrypt the information. We also propose an extension to the above approach to improve the efficiency of encryption at the data owner. We implement our mCL-PKE scheme and the overall cloud based system, and evaluates its security and performance. Our results show that our schemes are efficient and practical.
Views: 858 jpinfotechprojects
02_L_Mutual Authentication- Shared Secret
 
04:56
This video is part of the Udacity course "Intro to Information Security". Watch the full course at https://www.udacity.com/course/ud459
Views: 1650 Udacity
Public and Private Keys - CompTIA Security+ SY0-301: 6.3
 
04:13
See our entire index of CompTIA Security+ videos at http://www.FreeSecurityPlus.com - Asymmetric encryption technology has redefined our use of encryption with today's technology. In this video, you'll learn how this pair of keys allows use to encrypt, authenticate, manage non-repudiation, and validate our data.
Views: 13805 Professor Messer

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