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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: 419699 itfreetraining
Public Key Cryptography - Computerphile
 
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Spies used to meet in the park to exchange code words, now things have moved on - Robert Miles explains the principle of Public/Private Key Cryptography note1: Yes, it should have been 'Obi Wan' not 'Obi One' :) note2: The string of 'garbage' text in the two examples should have been different to illustrate more clearly that there are two different systems in use. 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. See the full list of Brady's video projects at: http://bit.ly/bradychannels
Views: 395350 Computerphile
SCP on cisco router
 
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download pscp tool http://www.mediafire.com/download/ezdem65hccagg4k/pscp.rar commands: • R(config)# crypto key generate rsa modulus 1024 label pair1 • R(config)# aaa new-model • R(config)# aaa authentication login default local • R(config)# aaa authorization exec default local • R(config)# username admin privilege 15 password admin • R(config)# ip scp server enable pscp.exe -scp [email protected]:running-config c:\running-config.txt ========================================== http://www.facebook.com/groups/newccnasec
Views: 4008 Adel Shepl
Swift 4: RSA Asymmetric Public Key Encryption - Secure Your iOS 11 App. How to in Xcode 9!
 
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This tutorial shows you how to generate RSA Public Keys and store them in the Key Chain in Swift 4 and Xcode 9 Public Key Encryption allow you to securely encrypt communications within your iOS 11 apps and we will be showing you how to do this using the Firebase database iOS Keys are made available in the SecKey format and we will need to change these to a String format to save the public key to the Firebase database for distribution. Tutorial 2:13 In this tutorial we will be using RSA Public Key Encryption which is an asymmetric encryption type.
Views: 473 Swift Almanac
Encrypt/Decrypt with RSA (storing the keys in files)
 
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Source Code Project http://microify.com/1Tgn
Views: 1813 Melardev
Crypto Key Stack (Protect Your Crypto!)
 
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Don't forget to Subscribe to my channel and pick yourself up a Crypto Key Stack here: http://cryptokeystack.com?rfsn=1331479.f4be86 In this video, I am showing you one of my favorite 12-word and 24-word seed phrase backup devices on the market. Featuring a matte, stainless steel design and a safe indestructible backup without tiny pieces, this is a GREAT buy for any cryptocurrency user with more than one wallet to back up! ------------------------------------------------------------------------------------------------------------- If you want some cool cryptocurrency collector's tokens that allow you to *literally* hold crypto in your hand, you can get them here: https://www.amazon.com/ideas/amzn1.account.AFPJ5P55ABM62OPBL2XVTJUPUQQA/1YJUNYZGHFYVM?ref=idea_cp_vl_ov_d&_encoding=UTF8&tag=hashoshi4-20&linkCode=ur2&linkId=6655e4e9e5d62dc72df9472c80147eee&camp=1789&creative=9325 ------------------------------------------------------------------------------------------------------------- Buy some DOPE cryptocurrency clothing here: https://www.amazon.com/registry/wishlist/3LQBJV0BAEF4I/ref=cm_sw_r_cp_ep_ws_Xsl8Ab79DFN41?&_encoding=UTF8&tag=hashoshi4-20 ------------------------------------------------------------------------------------------------------------- Buy a KeepKey hardware wallet here: http://keepkey.go2cloud.org/SHBk ------------------------------------------------------------------------------------------------------------- Pick up a Ledger Nano S Here: https://www.ledgerwallet.com/r/b852?path=/products/ledger-nano-s&tracker=MY_TRACKER ------------------------------------------------------------------------------------------------------------- If you want to get in the cryptocurrency game, sign up for Coinbase with my referral link: https://www.coinbase.com/join/590795469dcf5f0906c65a13 ------------------------------------------------------------------------------------------------------------- For altcoins, sign up for Binance with my referral link here: https://www.binance.com/?ref=23509073 ------------------------------------------------------------------------------------------------------------- My YouTube gear and tools: https://www.tubebuddy.com/hashoshi4 Canon SL2 Camera - https://amzn.to/2qqOgtC Canon 24mm Lens - https://amzn.to/2INCfpz Rode VideoMic Go - https://amzn.to/2GS0T85 Rode VideoMic Pro - https://amzn.to/2v8VgRl Joby GorillaPod Zoom - https://amzn.to/2EFSuCA Neewer Tripod - https://amzn.to/2qt0vGd My Blockchain Development & Video Editing Machine - https://amzn.to/2GUgYKo Godox LED Light - https://amzn.to/2EFHG7O Sandisk Compact Flash - https://amzn.to/2GVS3pZ Eneloop Batteries of Life - https://amzn.to/2Jm1q3n Eneloop PRO Batteries - https://amzn.to/2LsCkk2 ☮ Thank you for watching and joining the movement! I post weekly content about blockchain, cryptocurrency and more, including cryptocurrency investment tips, product reviews, and informative lessons, so please consider subscribing to get updated on the latest content! ☮ **-----------------------------------------------------------------------------------------------------DISCLAIMER: The information in this video is an opinion and is for informational purposes only. It is not intended to be investment advice, nor does it represent any entity's opinion but my own. Seek a duly licensed professional for investment advice. I am not guaranteeing you gains on your investment and this is just my own personal approach that I’ve had success with in investing in cryptocurrency. What I can guarantee, is that by using the above questions as your guide, make the most educated decisions possible while investing in cryptocurrency! Invest smart, ladies and gentlemen! This video and description may contain affiliate links, which means that if you click on one of the product links, I’ll receive a small commission. Most often, I include links to products when I do product reviews, but I will never push a product I do not use myself and totally believe in! The commission I receive for clicks is directly reinvested into the creation of great content on this channel, and I thank you for your support. I am @hashoshi4, engage with me on social media :) Twitter: http://bit.ly/2EDnBjp Facebook: http://bit.ly/2CvViW8 Instagram: http://bit.ly/2ECkecO *--------------------------------------------------------------------------------------------------------* I am Forrest Colyer, and I have studied blockchain and cryptocurrency obsessively over the last 7 years and worked as a blockchain developer for the past few years. It has been a wild ride and I'm excited about what the future holds! On this channel, I strive to share my experience with you in the form of blockchain tutorials, lessons, and stories as well as cryptocurrency news and investment hacks/tips. Thank you for watching and supporting me; Let's Hash It Out!
Views: 174 Hashoshi
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 -------------------------------------- Twitter: https://twitter.com/LiveOverflow Website: http://liveoverflow.com/ Subreddit: https://www.reddit.com/r/LiveOverflow/
Views: 30778 LiveOverflow
The BEST Way to Secure your Private Keys
 
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👍Thank you so much for watching! 😃Please Like, subscribe and turn on those channel notifications! 🌐Follow on Twitter @cryptocaffeine Support the channel! 💎Become a Patron or Sponsor | https://www.patreon.com/cryptosandcaffeine 💎Donate Bitcoin | 1BSBY8UcmvJMwHdfSbw8C756WXrDA2gi1t 💎Donate Litecoin | LZQK2VwV6YDj7fSUHcYefZBrkcFqgb17ii 💎Donate Ethereum | 0xcb34572fEa5C29119983D749744E0b8498561BF3 💎Donate IOTA | VDEINPV9HW9T9WBUVCTGLUMBRAOJL9ZJJYHAKFWFRXAUHEPWBDWROIMHANLSZCDSGYMMCGRYVZQPAHM9XYLHWUEOQX 🎯Sources ☑http://www.nifast.org/blog/07/do-you-know-what-will-not-burn-in-a-house-fire/ ☑http://www.engineeringtoolbox.com/melting-temperature-metals-d_860.html ☑https://www.dogtagus.com/Dog_Tags.html
Views: 719 Cryptos & Caffeine
C# - How to create RSA & RC4 Encryption [RO]
 
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◕ RSA = Rivest Shamir Adler Wiki: http://adf.ly/iO9H5 ◕ RC4 = ARCFOUR Wiki: http://adf.ly/iO9LB ◕ Numere Prime: http://adf.ly/iO9PB
Views: 10666 Cyber Code
PCI Requirement 3.6.1 Generation of Strong Cryptographic Keys
 
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PCI Requirement 3.6.1 requires, “Generation of strong cryptographic keys.” It also requires that, “The encryption solution must generate strong keys, as defined in the PCI DSS and PA-DSS Glossary of Terms, Abbreviations, and Acronyms under ""Cryptographic Key Generation."" The intent of PCI Requirement 3.6.1, according to the PCI DSS, is to “significantly increases the level of security of encrypted cardholder data.” PCI Requirement 3.6.1 is part of the 8 sub-requirements of PCI Requirement 3.6, which is meant to build your organization’s key management program because, the PCI DSS states, “The manner in which cryptographic keys are managed is a critical part of the continued security of the encryption solution. A good key management process, whether it is manual or automated as part of the encryption product, is based on industry standards and addresses all key elements at 3.6.1 through 3.6.8.” We recommend that you perform a risk assessment around the generation of your cryptographic keys; this way, you can see if your keys become weakened or hold up. Industry standards, like NIST, should be used when determining how to manage and generate keys. If you store, process, or transmit cardholder data, interact with payment card data in any way, or have the ability to impact someone else’s cardholder information or the security of that information, you are subject to comply with the PCI DSS. This exclusive video series, PCI Demystified, was developed to assist your organization in understanding what the Payment Card Industry Data Security Standard (PCI DSS) is, who it applies to, what the specific requirements are, and what your organizations needs to know and do to become compliant. Learn more at https://kirkpatrickprice.com/video/pci-requirement-3-6-1-generation-strong-cryptographic-keys/ Video Transcription If you’re using encryption within your environment, you need to use strong encryption. What this effectively means is that you need to generate strong keys. Once again, you need to be using an industry best practice for this. One of the things that I would recommend that you do as part of your risk management program, just like the annual risk assessment that you’re required to do, is that you perform somewhat of a risk assessment around the generation of your keys. If during the period of time, your encryption keys become deprecated or weakened because of some change to the industry, you must have a process for generating a new key. We’ll be talking about that in a subsequent video. Specific to PCI Requirement 3.6.1, you have to have a process in place where you’re actually generating strong keys. IF you have an HSM, that’s kind of inherent in using the HSM itself. If you have a clear text process where you’re managing or developing these keys, it needs to be done securely. I would recommend that you look at industry best practices like NIST 800-57 for that information. Stay Connected Twitter: https://twitter.com/KPAudit LinkedIn: https://www.linkedin.com/company/kirkpatrickprice-llc Facebook: https://www.facebook.com/kirkpatrickprice/ More Free Resources PCI Demystified: https://kirkpatrickprice.com/pci-demystified/ Blog: https://kirkpatrickprice.com/blog/ Webinars: https://kirkpatrickprice.com/webinars/ Videos: https://kirkpatrickprice.com/video/ White Papers: https://kirkpatrickprice.com/white-papers/ About Us KirkpatrickPrice is a licensed CPA firm, PCI QSA, and a HITRUST CSF Assessor, registered with the PCAOB, providing assurance services to over 600 clients in more than 48 states, Canada, Asia, and Europe. The firm has over 12 years of experience in information security and compliance assurance by performing assessments, audits, and tests that strengthen information security and internal controls. KirkpatrickPrice most commonly provides advice on SOC 1, SOC 2, HIPAA, HITRUST CSF, PCI DSS, ISO 27001, FISMA, and CFPB frameworks. For more about KirkpatrickPrice: https://kirkpatrickprice.com/ Contact us today: 800-770-2701 https://kirkpatrickprice.com/contact/
Views: 108 KirkpatrickPrice
How to generate a RSA key on Windows 10. 2017
 
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Git bash: https://git-scm.com/download/win
Views: 443 I Need to Code.
How to find Base64-encoded RSA public key
 
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Base64-encoded RSA public key
Views: 612 MixTape
Creating and using SSH keys
 
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Creating and using SSH keys As the third video in this series on making SSH access to a CentOS Linux server more secure, this tutorial will show you: How to Create and Use SSH Keys with PuTTY With this video tutorial, you will learn how to use SSH keys to connect to a CentOS server from a Windows PC, using the PuTTY SSH client and PuTTYgen utilities. You can download PuTTY and the PuTTYgen utilities from the URL displayed in this video and from the link in the text below. To generate a set of RSA keys, launch the PuTTYgen utility. RSA is a cryptosystem for public-key encryption. On the PuTTYgen Key Generator screen, make sure the "SSH-2 RSA" option is selected, then click the “Generate” button, and move your mouse around the area, as instructed on the screen. This will generate some randomness and will take a few seconds to complete, as seen in the progress bar. Once complete, you will see a generated public/private key pair. In the "Key comment:" field you can enter any comment you like to help you identify the generated key pair. Click the "Save public key," choose location to save it, name the file as you like and click "Save." On the PuTTY Key Generator screen, click the "Save private key" On the "PuTTYgen Warning" window, click "Yes." Choose the location to save the file, name the file as you like, and click "Save." The location of the files can be the same, but ensure that only you have access to it and that you do not lose the keys. Next, right click in the text field beneath, "Public key for pasting into OpenSSH authorized_keys file:" and choose "Select All." Right click again and choose "Copy." Now, you will save your copied public key log to the CentOS server. Open the terminal and at the command prompt type mkdir ~/.ssh and press Enter. Then, type chmod 0700 ~/.ssh and Enter. Next, type touch ~/.ssh/authorized_keys and Enter. Then, type chmod 0644 ~./ssh/authorized_keys and Enter. Now you will edit the authorized keys system file. At the prompt, type sudo vi ~./ssh/authorized_keys and press Enter to execute the editor. If prompted to enter sudo password type your user's password and press Enter. On the editor screen, press the Insert. key and right click your mouse to paste the copied public key. Press the Esc. key, type :w and press Enter to save the file. Type :q and press Enter to exit the editor. To configure the PuTTY profile in your Windows PC, open the PuTTY utility. In the "Host Name (or IP address)" field enter your server's IP In the "Port" field, enter the custom port configured during the “How to Change the Default SSH Port” tutorial. Make sure the "Connection type:" is SSH. In the "Category:" section on the left pane under “Connection,” choose "Data." In the "Auto-login username" field, enter the user name you created in the How to Create a New User tutorial. Go to the "Category:" section in the left pane and under “Connection,” expand "SSH." Under "SSH," highlight "Auth" to access the Options controlling SSH authentication screen. In the "Authentication parameters" section click the "Browse..." button and browse to the location where your private key file is stored. Choose it and click "Open." In the "Category:" section in the left pane, highlight "Session," and enter a chosen name for the profile in the "Saved Sessions" field and click “Save.” Choose the newly saved profile, and click "Open" to connect to your CentOS server using the SSH key pair. Thanks for joining us and return often to see new tutorials from Superb.net.
Views: 4639 Superb Marketing
Public & Private Keys Explained (Litecoin/Bitcoin)
 
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By now you have most probably already heard of the term Public & Private keys, but what exactly are they and more to the point what do they even do? Note, 204 Tresvigintillion is the amount of time a standard desktop PC would take to crack a key - via Howseucreismypassword.net Bloomberg Video: http://www.bloomberg.com/news/videos/b/9a33c478-516f-4fc9-8a11-0e9cb7c5b066) 🎧 Music: ♪ Kontinuum - Aware ♪ L'impératrice - Vanille Fraise
Views: 75765 Franklyn [Litecoin]
How to generate Rsa Key and upload it to Azure Key Vault
 
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1. Install openSsl from http://slproweb.com/products/Win32OpenSSL.html When asked: use Bin folder in OpenSsl folder. 2. Generate pfx file, details: Go to openssl bin folder, and create a genpfx.bat file with contents: openssl.exe genrsa -out my_key.key 2048 openssl.exe req -new -key my_key.key -out my_request.csr -config openssl.cfg openssl.exe x509 -req -days 365000 -in my_request.csr -signkey my_key.key -out my_cert.crt openssl.exe pkcs12 -keypbe PBE-SHA1-3DES -certpbe PBE-SHA1-3DES -export -in my_cert.crt -inkey my_key.key -out my_pkcs12.pfx -name "my-name" Execute genpfx.bat. Press "Enter" on any request Source used: http://help.globalscape.com/help/secureserver3/generating_a_pkcs_12_private_key_public_certificate.htm 3. Upload to Azure Key Vault using azure portal. In KeyVault – press Add, Choose not "Generate" but "Upload", and choose "my_pkcs12.pfx"
Encrypt/Decrypt with RSA in C# (simplest method)
 
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Source Code Project http://microify.com/1Tgn blog melardev.x10host.com twitter http://twitter.com/melardev blogger https://melardev.blogspot.com instagram https://www.instagram.com/melar_dev/ Google+ https://plus.google.com/u/0/110174297675710954678
Views: 11467 Melardev
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. 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
Managing Secrets for Azure Apps
 
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Every serious app you deploy on Azure has critical secrets – connection strings, certificates, keys. Silly mistakes in managing these lead to fatal consequences – leaks, outages, compliance violations. As multiple recent surveys point out, silly mistakes cause 4 times more data breaches than adversaries. In this session we will go over some best practices to manage your important app secrets. These may seem like common sense, yet a lot of developers neglect them. We will also go over how to leverage Azure Key Vault to implement those best practices. As an added benefit, following these practices will also help you demonstrate compliance with standards such as SOC. The first ten minutes of the session are level 100 and they apply to any cloud app you develop on any platform. The remainder is level 200-300 and focuses on apps you build on the Azure platform.
C# Keywords RSA Cryptography (Public/Private Key Encryption)
 
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RSA being a public key crypto-system has two keys, the Public key and the Private key. The Encryption is done using one and the decryption is done using the other. Normally, the encryption is done using the Public key and the decryption is done using the Private key. The RSA modulus (explained below) length is called the key length of the cipher. The currently largest factored prime number had 768 bit. As the security of RSA depends on the factoring problem, using a modulus of 1024 bits is a bare minimum. It is recommended to use at least 2048 bits for good security. 4096 bit is pretty much unbreakable, anything beyond 4096 bits is over the top and would also be painfully slow.
14- Asymmetric Encryption
 
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Web Application Penetration Testing Course Instructed by Ebrahim Hegazy from www.security4arabs.com team.
Views: 2367 Ebrahim Hegazy
Equinix Smartkey™ - Take Control of Your Data
 
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The best way to protect your cloud data. Equinix SmartKey™, powered by Fortanix, is a global SaaS-based secure key management and cryptography service offered on cloud-neutral Platform Equinix™ which simplifies data protection in any public, private, hybrid or multicloud environment. SmartKey, an HSM as a service that is protected by Intel SGX technology, provides internet scale, secure key storage, encryption and tokenization services, addressing performance and GRC requirements at the digital edge close to clouds and carriers. Key Benefits: Fortify data protection while reducing complexity of key management and cryptographic operations Ensure control, confidentiality and performance Achieve Governance, Risk and Compliance (GRC) goals and objectives
Views: 1488 equinixvideos
C++ Qt 151 - RSA and AES with OpenSSL Linking and structure
 
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Beginning steps to using OpenSSL with Qt - the structure of the program explained
Views: 6646 VoidRealms
Simplify, Centralize and Automate Encryption-Key Management for your Enterprise
 
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Business data is growing at exponential rates, and along with that growth comes a demand for securing that data on-premises and in the cloud. IBM Security Key Lifecycle Manager is designed to help IT organizations better manage the encryption-key lifecycle by enabling users to simplify, centralize, automate and strengthen their encryption-key management processes, enhancing security across the computing environment. IBM has designed IBM SKLM to help your organization implement a unified key-management strategy that can help better secure your data, with performance you need to support your critical business functions. For more information, please visit http://ibm.co/2bPl0nB
Views: 1514 IBM Security
.NET Assembly Public Key Private Key
 
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Shows how to generate a .NET public-key private-key file and sign an assembly with it.
Views: 6796 Jamie King
RSA Key Generation with OpenSSL (CSS322, Lecture 13, 2013)
 
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RSA Key Generation with OpenSSL. Lecture 13 of CSS322 Security and Cryptography at Sirindhorn International Institute of Technology, Thammasat University. Given on 16 January 2014 at Bangkadi, Pathumthani, Thailand by Steven Gordon. Course material via: http://sandilands.info/sgordon/teaching
Views: 557 Steven Gordon
Key management with Microsoft Azure Key Vault
 
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Secure key management is essential to protect data in the cloud. Azure Key Vault enables customers to manage keys and other secrets for their Azure applications. In this session, learn how Azure Key Vault can help you manage your keys and secrets for your Azure applications and achieve your compliance objectives.
Views: 1769 Microsoft Cloud
How To Use GPG Private Public Keys To Encrypt And Encrypt Files On Ubuntu Linux
 
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How To Use GPG Private Public Keys To Encrypt And Decrypt Files On Ubuntu Linux GNU Privacy Guard (GnuPG or GPG) is a free software replacement for Symantec's PGP cryptographic software suite. To encrypt and decrypt files we shall use GnuPG (GNU Privacy Guard), which is GNU’s tool for encryption and signing. GnuPG is a GPL Licensed implementation of OpenPGP ( Pretty Good Privacy ) standard
Views: 198 Amine Nina
Hashing Algorithms and Security - Computerphile
 
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Audible free book: http://www.audible.com/computerphile Hashing Algorithms are used to ensure file authenticity, but how secure are they and why do they keep changing? Tom Scott hashes it out. More from Tom Scott: http://www.youtube.com/user/enyay and https://twitter.com/tomscott http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Pigeon Sound Effects courtesy of http://www.freesfx.co.uk/ Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels
Views: 694406 Computerphile
RSA Algorithm Implemented in Python
 
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Github link: https://github.com/MatthewCLind/Crypto_Practice
Views: 660 Matthew Lind
C# Keywords Asymmetric RSA Cryptography (RSAParameter Encryption)
 
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The .NET Framework provides the RSACryptoServiceProvider and DSACryptoServiceProvider classes for asymmetric encryption. These classes create a public/private key pair when you use the default constructor to create a new instance. Asymmetric keys can be either stored for use in multiple sessions or generated for one session only. While the public key can be made generally available, the private key should be closely guarded. The ExportParameters method, which returns an RSAParameters structure that holds the key information.
Views: 125 Derula Developments
Protecting Encryption Keys with Azure Key Vault - Stephen Haunts
 
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In a world where we are putting our companies data in the cloud, the protection of that data against a data breach has never been more important. In this talk, I will show you how to setup and use the Microsoft Azure Key vault to protect your encryption keys and secrets like passwords and connection strings. Azure Key Vault uses the power of Hardware Security Modules (HSM's) to protect your secrets and make sure your solutions are as secure as they can be when working in regulated industries like healthcare, financial and insurance. As well as showing you how to setup and configure the vault, I will show you how to code against it and various different patterns of security in a cloud base multi-tenant environment. I will cover topics like: - Setup Azure key Vault - Authorize your application to access the vault with AzureAD - Accessing the vault from your applications - Using the Vault to wrap local encryption keys for performance - Encrypting connection strings as Key Vault secrets to get flexible database routing in the cloud - Audit logging for compliance Once this talk is finished you will walk away with everything you need to start using Azure Key Vault as a power user. NDC Conferences https://ndcminnesota.com https://ndcconferences.com
Views: 629 NDC Conferences
ENCRYPTION AND DECRYPTION USING  RSA ALGORITHN
 
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encryption and decryption using RSA algorithm. ... Enjoy
Views: 13 lyzza nkgadi
How To Encrypt And Decrypt Files Using Private Public Keys With OpenSSL On Ubuntu Linux
 
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How To Encrypt And Decrypt Files Using Private Public Keys With OpenSSL On Ubuntu Linux. This video tutorial will show you how to use the openssl command line to encrypt and decrypt a file using a public key. We will first generate a private key then extract the public key from this private key. last we will encrypt a file using the public key and later use the corresponding private key to decrypt it.
Views: 488 Amine Nina
Encryption and HUGE numbers - Numberphile
 
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Banks, Facebook, Twitter and Google use epic numbers - based on prime factors - to keep our Internet secrets. This is RSA public-key encryption. More links & stuff in full description below ↓↓↓ Gold Vault: https://youtu.be/CTtf5s2HFkA This video features Dr James Grime (http://singingbanana.com/). Message from James: "Thanks to Dr Chris Hughes of the University of York who showed me how to find the RSA public key from my browser, and showed me how awesome they look when you print them out." Regarding the keys used for encryption: x, y prime Encode key E shares no factors with (x-1)(y-1) Decode key is D with E*D - 1 a multiple of (x-1)(y-1) Thanks to Drew Mokris for the animation: http://www.spinnerdisc.com/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon: http://www.patreon.com/numberphile Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/ Brady's latest videos across all channels: http://www.bradyharanblog.com/ Sign up for (occasional) emails: http://eepurl.com/YdjL9 Numberphile T-Shirts: https://teespring.com/stores/numberphile Other merchandise: https://store.dftba.com/collections/numberphile
Views: 986777 Numberphile
How the RSA Algorithm Works: Part 2 of 2
 
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Here I explain How the RSA Algorithm Works by giving a data exchange scenario My web page: www.imperial.ac.uk/people/n.sadawi
Views: 14628 Noureddin Sadawi
Azure Key Vault setup for encrypting blobs
 
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This video reveals details of setting up Azure Key Vault for encrypting and decrypting blobs from this article: https://docs.microsoft.com/en-us/azure/storage/storage-encrypt-decrypt-blobs-key-vault In Key Vault Access Policies: - Get - is enough for uploading encrypted data. - Get, Unwrap Key - is enough for downloading encrypted data.
Views: 2709 Alexander Tarasenkov
Raspberry Pi - Two Factor authentication (SSH)
 
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Raspberry Pi Two Factor authentication 2 Factor authentication Certificate/key authentication www.raspberrypi.org
Views: 11617 RaspberryPiIVBeginners
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: 2981 Udacity
Digital Signature in Hindi
 
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This Tutorial Explain What is Digital Signature in Hindi. A Digital Signature in Hindi (not to be confused with a digital certificate) is a mathematical technique used to validate the authenticity and integrity of a message, software or digital document. It Covers Points like digital signature in cryptography in hindi, digital signature in network security and digital signature in dbms(advance database management system) Digital Signature Use Asymatric Key to Encrypt Data. Digital signatures are often used to implement electronic signatures, a broader term that refers to any electronic data that carries the intent of a signature How digital signatures work Digital signatures are based on public key cryptography, also known as asymmetric cryptography. Using a public key algorithm such as RSA, one can generate two keys that are mathematically linked: one private and one public. To create a digital signature, signing software (such as an email program) creates a one-way hash of the electronic data to be signed. The private key is then used to encrypt the hash. The encrypted hash -- along with other information, such as the hashing algorithm -- is the digital signature. The reason for encrypting the hash instead of the entire message or document is that a hash function can convert an arbitrary input into a fixed length value, which is usually much shorter. This saves time since hashing is much faster than signing. Subscribe my Channel: https://goo.gl/FYkHc5 Reference Link: https://en.wikipedia.org/wiki/Digital_signature
Views: 478 Introtuts
Understanding the Key Verification Algorithm (Keygen part 3) - Pwn Adventure 3
 
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Part 17: This video might be a bit more boring reversing, and I even failed to recognise the implemented algorithm. 🌴 Playlist: https://www.youtube.com/playlist?list=PLhixgUqwRTjzzBeFSHXrw9DnQtssdAwgG -------------------------------------- Twitter: https://twitter.com/LiveOverflow Website: http://liveoverflow.com/ Subreddit: https://www.reddit.com/r/LiveOverflow/ Facebook: https://www.facebook.com/LiveOverflow/
Views: 14131 LiveOverflow
Managing encryption of data in the cloud (Google Cloud Next '17)
 
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Can management of encryption keys be easier in the cloud than on-premise? During this video, Maya Kaczorowski discusses the continuum of encryption options available, from encryption of data at rest by default, to Cloud Key Management System, to Customer Supplied Encryption Keys. You'll learn how our encryption tools allow management of your own keys, including generation, rotation and destruction of those keys. She also shares best practices for managing and securing secrets. Missed the conference? Watch all the talks here: https://goo.gl/c1Vs3h Watch more talks about Infrastructure & Operations here: https://goo.gl/k2LOYG
Views: 6175 Google Cloud Platform
Cloudy, Without a Chance of Data Loss - Implementation; Dynamic Symmetric Searchable Encryption ;
 
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Cloudy, Without a Chance of Data Loss - Implementation Kevin Bowers, RSA Laboratories Cloud storage promises to provide consumers with cheap storage that can be accessed at any time, from anywhere. The appeal of such a system is easy to understand, as too is the fear people have of outsourcing the storage of valuable data. Recent failures and loss of data by cloud storage providers has done little to ease these fears. Fear is often a product of the unknown. In this talk we present several newly developed techniques that give consumers better insight into the cloud, as well as ways to leverage this insight to ensure fault tolerance. In particular, we will focus on challenges encountered while implementing Proofs of Retrievability (PORs), High Availability and Integrity Layer (HAIL), and Remote Assessments of Fault Tolerance (RAFTs). Given the right tools, the benefits of cloud storage can be achieved, without a chance of data loss. Dynamic Symmetric Searchable Encryption Tom Roeder, MSR Searchable Symmetric Encryption (SSE) allows a user to generate an encrypted index for terms extracted from a document collection. The encrypted index can be stored with the encrypted documents on a remote host, and the user can generate tokens that the host can use to search the encrypted index without revealing much information. In most applications of SSE, the encrypted documents are updated frequently, hence the encrypted index must also be updated. But published algorithms for SSE do not provide practical update mechanisms. In this talk, we introduce two new SSE schemes that provide practical update mechanisms; one scheme allows individual terms from a document to be added or deleted, and the other scheme supports adding or deleting all the terms for a document at once. We also describe a prototype implementation of the document-based scheme built over Windows Home Server.
Views: 168 Microsoft Research
How to Install your Embedded Vault
 
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Turn your PC into a secure hardware device with Embedded Downloads. Download your Embedded Vault today - click here https://swissbankinyourpocket.com/product/embedded-vault/ The World’s Most Secure Cryptocurrency Software Wallet With a unique interaction between hardware, encryption and blockchain technology, the most secure method of holding Bitcoin and other cryptocurrency without the need of purchasing additional hardware. Dynamic Key creation – Your private keys are never stored The defining feature of this product is that the private keys are dynamically created by the user and these keys are NEVER STORED, either on a device or a third party server. How does it work? Using your phone, PC and blockchain together, the Embedded Vault creates secure storage for your cryptocurrency and cryptography assets. Biometric security is a further intricate part of the security and the dynamic key generation process. To use the Embedded Vault, you need a smart phone with a fingerprint scanner and bluetooth as well as a PC or laptop with Bluetooth. A PC application and smartphone applications need to be downloaded. The PC Application interacts with the phone over Bluetooth with an encrypted connection. You are in control of your private keys – You Are the Key As an additional security feature all transactions are double checked by a fingerprint scan of the user. EOT [ Encryption of Things ] will be the cryptocurrency used as part of the key generation and encryption process. What can the Embedded Vault do? Secure storage of your cryptocurrency Bitcoin EOT Coin EOT Token Waves The development team is in the process of developing wallets for Bitcoin Cash, Ethereum, and Ripple. These will be made available via software updates as soon as they are complete. EOT Coin to Token Exchange The Embedded Vault provides a gateway that facilitates the exchange of EOT coins to EOT Tokens to enable trading of EOT on decentralized exchanges such as the Waves Platform. Requirements: Android Smartphone with Fingerprint scanner and Bluetooth Windows PC with Bluetooth Future Developments: MAC OS Support iPhone Support Bitcoin Cash Wallet Ethereum Wallet Ripple Download your Embedded Vault today - click here https://swissbankinyourpocket.com/product/embedded-vault/ Website - https://bit-media.org/ ITunes App - https://itunes.apple.com/gb/app/bit-media-community/id1217084514?mt=8 https://play.google.com/store/apps/details?id=com.bit.bitmedia https://www.facebook.com/bitmediacommunity/
Views: 241 Bit Media
Convergent key Encryption
 
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Give this video a BIG THUMBS UP if it helped! How To Properly Upload Videos To YouTube -- The Sharp Turtle explains What is Convergent key Encryption. Share this Video: https://youtu.be/3TQcTxOSAWk Subscribe To My Channel and Get More Great videos https://www.youtube.com/channel/UCB-rgmagIzxqi1KmOAy5aBg Convergent encryption has been proposed to enforce data confidentiality while making deduplication feasible. It encrypts/decrypts a data copy with a convergent key, which is obtained by computing the hash value of the content of the data copy. After key generation and data encryption, users retain the keys and send the ciphertext to the storage server provider. Since the encryption operation is deterministic and is derived from the data content, identical data copies will generate the same convergent keyand hence the same ciphertext. Here is a metaphore video that explains this concept in easy way..Hope you will like it!!!
Views: 1942 The Sharp Turtles
Create private key with openssl
 
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Create a 2048 bit private key with openssl. openssl genrsa -out private.key 2048
Views: 136 Querblick IT
How To Find Your Crypto Private Keys
 
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News of The Day https://cointelegraph.com/news/bitcoin-going-to-moon-could-reach-1-billion-fox-news https://cointelegraph.com/news/controversial-bitcoin-scaling-project-segwit2x-new-code-released BTC 186rgU1VbdPBYr4wtZM76uJqMguRwWstg8 Cloak Coin C2xWSGzCSx4APaBRFJxR4BVxziPXuaR7xt ETC 0x9a67772c2d6260bd792bfe05ce79b485afb68c27 LTC LQwWcwU2peiaVH2ncdgZ65g5A45jqZ22vW Monero 47sghzufGhJJDQEbScMCwVBimTuq6L5JiRixD8VeGbpjCTA12noXmi4ZyBZLc99e66NtnKff34fHsGRoyZk3ES1s1V4QVcB (ID) dee954534a4e7813af57916344bd9f338549e14af65cade46485b892dc567853
Views: 11178 The Crypto Type
SCOM0411 - Sign & Encrypt Emails and Files on your Mac with GPGTools
 
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Without being overly dramatic, recent events have shown that your private data may not be as private as you think. Storing any unencrypted data or emails on remote services may eventually be accessed and read by official and unofficial prying eyes. The tutorial takes you through the simple process of installing the Open Sourced GPGTools including GPG Mail 2. Its much simpler to setup than you might think, and once setup, signing and encrypting email is as easy as clicking a button. Even if you don't intend to encrypt all your emails, the tutorial shows you how to get your own public and private keys, so other people can send you signed and encrypted emails and files. This week, I demonstrate just how easy it is to digitally sign and encrypt your email with a strong 2048-bit RSA key, so you can prove who sent it and restrict decoding to just those you intend. Not just emails, I also show you how to sign and encrypt files too, all by the use of a simple suite of tools. The full tutorial covers: * GPG Tools * Installation * Generating a Key Pair * Sending an Encrypted & Signed Email * Searching For Public Keys * GPG Suite Preferences * Adding Multiple eMail Addresses to a Key * Using OpenPGP Services * GPGTools Wrap Up * ScreenCastsOnline Monthly Magazine * New iPhone Version * New Features
SAP HANA Academy - Using the Key Generation Transform
 
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In this video, we explore the Key Generation transform from SAP BusinessObjects Data Services to generate a new primary key when appending information to an SAP HANA table. For more information, please go to http://academy.saphana.com/
Views: 9368 SAP Technology
Uninstall RSA-1024 encrypt Quickly With Effective Instructions
 
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This video deserves to be watched out thoroughly since it includes working instructions regarding the complete removal of RSA-1024 encrypt from the PC. You might also like paying visit here - http://www.cleaningpcvirus.com/how-to-delete-rsa-1024-encrypt-restore-encrypted-system-files
Views: 1181 CPV Team