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: 497063 itfreetraining
என்கிரிப்சன் என்றால் என்ன ? தமிழ் டெக் What is Encryption, Decryption & Public Key Encryption? | Tamil Tech Explained.Like and Share this Video, Subscribe and Support us . More Tamil Tech Explained : https://goo.gl/Wxeip0 ****************************************************************** JOIN TAMIL TECH & Support us : Website : www.TamilTechOfficial.com YouTube : https://youtube.com/TamilTechOfficial Facebook: https://facebook.com/TamilTechOfficial/ Twitter: https://twitter.com/TamilTechOffici instagram : http://instagram.com/TamilTechOfficial ****************************************************************** இது போல இன்னும் பல tech வீடியோ உங்கள்ளுக்காக . SUBSCRIBE செய்யவும் . Check Other Videos of TAMIL TECH : FULL PLAYLIST : http://goo.gl/hKNNFX Tamil Tech News :https://goo.gl/0leUcj Tamil Tech Tips : https://goo.gl/nEdDeZ VR Series : https://goo.gl/iRPZ2i YouTuber Series : https://goo.gl/YvWnCX Tamil Tech Top APP Series : https://goo.gl/2mnxV9 Top Smartphones : https://goo.gl/SuXYhz Best Buy Tips : https://goo.gl/BTKvc9 My Opinions : https://goo.gl/41WgxA Whatsapp Tips & Tricks : https://goo.gl/A1qRo4 Super Gadget Unboxing & Review : https://goo.gl/edTy52 Android TIps & Tricks : https://goo.gl/OeD4m0 Real or Fake Series : https://goo.gl/sR9EH4 Tamil Tech Super app : https://goo.gl/C7872Y Tamil Tech Achivement : https://goo.gl/6rbl8c Tamil Tech Live QnA :https://goo.gl/LVFhyF Tamil Tech Prime : https://goo.gl/wSH6qD How to Tamil : https://goo.gl/npdNGR Tamil Tech Unboxng : https://goo.gl/KnhwJt ---------------------------------------------------------------------------------------------------- My ENGLISH TECH CHANNEL - HOWISIT : YOUTUBE : https://www.youtube.com/c/howisitin Facebook: https://www.facebook.com/howisit.in , Twitter: https://www.twitter.com/howisitin , Google plus: https://plus.google.com/u/howisitin, website : http://howisit.in
Views: 56727 TAMIL TECH - தமிழ் டெக்
How does public-key cryptography work? What is a private key and a public key? Why is asymmetric encryption different from symmetric encryption? I'll explain all of these in plain English! 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be 👍🏻 Like my Facebook page: https://www.facebook.com/savjee
Views: 251010 Simply Explained - Savjee
This Public Key Cryptography training video is part of the CISSP FREE training course from Skillset.com (https://www.skillset.com/certifications/cissp). Skillset helps you pass your certification exam. Faster. Guaranteed. https://www.skillset.com Topic: Public Key Cryptography Skill: Cryptography Fundamentals Skillset: Security Engineering Certification: CISSP Join the 40,000+ candidates in over 58 countries that have found a faster, better way to pass their certification exam. + Unlimited access to thousands of practice questions + Exam readiness score + Smart reinforcement + Focused training ensures 100% exam readiness + Personalized learning plan + Align exam engine to your current baseline knowledge + Eliminate wasted study time + Exam pass guarantee And much more - https://www.skillset.com
Views: 5704 Skillset
Author: Jeremy Druin Twitter: @webpwnized Description: This practical introduction to using the RSA public key algorithm in OpenSSL provides a quick introduction to asymmetric cryptography. This video is a deomnstration that shows how to use RSA in OpenSSL but does not cover encryption theory. Thank you for watching. Please support this channel. Up vote, subscribe or even donate by clicking "Support" at https://www.youtube.com/user/webpwnized! The webpwnized YouTube channel is dedicated to information security, security testing and ethical hacking. There is an emphasis on web application security but many other topics are covers. Some of these include forensics, network security, security testing tools and security testing processes. The channel provides videos to encourage software developers and system administrators to perform security testing. Also, the channel educates the next generation of security testers and bug bounty hunters who want to respectfully, legally and ethically help system owners that allow security testing.
Views: 2015 webpwnized
Demonstration of using OpenSSL to create RSA public/private key pair, sign and encrypt messages using those keys and then decrypt and verify the received messages. Commands used: openssl. Created by Steven Gordon on 7 March 2012 at Sirindhorn International Institute of Technology, Thammasat University, Thailand.
Views: 66591 Steven Gordon
This video explains to you how PKI works to create a secure environment.
Views: 91957 SecureMetric
In this network security video tutorial we will study the working of RSA Algorithm. RSA Algorithm theory - 1. Ron Rivest, Adi Shamir and Len Adlemen developed the method called as RSA algorithm. 2. Most popular and proven asymmetric key cryptography algorithm 3. Based on the mathematical fact that it is easy to find and multiply large prime numbers together, but it is extremely difficult to factor their product. RSA Algorithm Steps - 1. Choose two large prime numbers P and Q. 2. Calculate N = P * Q 3. Select the public key (i.e. the encryption key) E such that it is not a factor of [(P – 1) * (Q – 1)]. 4. Select the private key (i.e. the decryption key) D such that the following equation is true: (D * E) mod (P – 1) * (Q – 1) = 1 5. For encryption calculate the cipher text CT from the plain text PT as follows: CT= PT^E mod N 6. Send CT as the cipher text to the receiver 7. For decryption calculate the plain text PT from the cipher text CT as follows: PT = CT^D mod N Complete Network Security / Information Security Playlist - https://www.youtube.com/watch?v=IkfggBVUJxY&list=PLIY8eNdw5tW_7-QrsY_n9nC0Xfhs1tLEK Download my FREE Network Security Android App - https://play.google.com/store/apps/details?id=com.intelisenze.networksecuritytutorials Simple Snippets Official Website - http://simplesnippets.tech/ Simple Snippets on Facebook - https://www.facebook.com/simplesnippets/ Simple Snippets on Instagram - https://www.instagram.com/simplesnippets/ Simple Snippets on Twitter - https://twitter.com/simplesnippet Simple Snippets Google Plus Page - https://plus.google.com/+SimpleSnippets Simple Snippets email ID - [email protected] For More Technology News, Latest Updates and Blog articles visit our Official Website - http://simplesnippets.tech/ #RSA #RSAalgorithm #NetworkSecurity #AsymmetricCryptography
Views: 1938 Simple Snippets
In this video , i discussed about GTU INS UNIT 4 i.e. Public Key Cryptography you Can find Unit PPT, Material , related Videos on Below Google Drive LInk https://drive.google.com/drive/folders/0B3F0L2_uTazMOF9sTGpIbGVVdG8?usp=sharing For any Query you can mail me on queries.ankitchouha[email protected] Feel Free to Share
Views: 1191 ANKIT CHOUHAN
In private key encryption, data is encrypted using a single same key that only the sender and the receiver know. That is why private key encryption is also called symmetric key encryption because the same key is used during both encryption and decryption of the transmitted data. In this video, I will also use an example to demonstrate the process of using private key encryption. Two different methods -stream encryption and block encryption- of private key algorithm are also depicted with animation. 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!
Views: 28180 Sunny Classroom
📚📚📚📚📚📚📚📚 GOOD NEWS FOR COMPUTER ENGINEERS INTRODUCING 5 MINUTES ENGINEERING 🎓🎓🎓🎓🎓🎓🎓🎓 SUBJECT :- Discrete Mathematics (DM) Theory Of Computation (TOC) Artificial Intelligence(AI) Database Management System(DBMS) Software Modeling and Designing(SMD) Software Engineering and Project Planning(SEPM) Data mining and Warehouse(DMW) Data analytics(DA) Mobile Communication(MC) Computer networks(CN) High performance Computing(HPC) Operating system System programming (SPOS) Web technology(WT) Internet of things(IOT) Design and analysis of algorithm(DAA) 💡💡💡💡💡💡💡💡 EACH AND EVERY TOPIC OF EACH AND EVERY SUBJECT (MENTIONED ABOVE) IN COMPUTER ENGINEERING LIFE IS EXPLAINED IN JUST 5 MINUTES. 💡💡💡💡💡💡💡💡 THE EASIEST EXPLANATION EVER ON EVERY ENGINEERING SUBJECT IN JUST 5 MINUTES. 🙏🙏🙏🙏🙏🙏🙏🙏 YOU JUST NEED TO DO 3 MAGICAL THINGS LIKE SHARE & SUBSCRIBE TO MY YOUTUBE CHANNEL 5 MINUTES ENGINEERING 📚📚📚📚📚📚📚📚
Views: 7898 5 Minutes Engineering
A digital signature is equivalent to a handwritten signature in paper, and a digital signature serves three basic purposes. Digital signature is commonly used for software distribution, financial transactions and other cases where it is important to detect forgery. Digital signatures are very popular with e-mail users. In this video, I will talk about the digital, uses, and the whole process of creating and sending digitally signed document over the Internet. Keep in mind, digital signature is not about encrypting document, just like paper-based signature. 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 subscribe to my channel! Please leave comments or questions! Many thanks, Sunny Classroom
Views: 142171 Sunny Classroom
Get Full Course: http://www.engineeringmentor.com/CNYTv3 Networks #3: This tutorial introduces the Cryptography basics. It also explains what is Encryption and Decryption. a) Cryptography basics (00:21):http://youtu.be/BEb_AnPWPwY?t=21s how do we provide this security during transmission? Well, One way of ensuring security can be use of CRYPTOGRAPHY! Cryptography is a field of network security which deals with hiding "real" infromation when it is under transmission between the two parties. Usually, the real information is transformed or hidden into another message and transmitted over the network. This transformed message in itself will make no sense even if any hacker gets hold of this information. When it reaches the destination, the receipent will know a method to de-transform the garbage message into the original information which the sender had sent.method of transforming message at sender's side and de transforming at reciever's side forms the basic model of Cryptography. b) Encryption and Decryption (3:57):http://youtu.be/BEb_AnPWPwY?t=3m57s First, the information to be transmitted, called as plain text(or message) is fed to an Encryption system. The Encyrption system uses a key to convert the plain text to encyrpted form which looks like garbage value. This is also called as cipher text. A corresponding key is used at the other end to decrypt the cipher text back to original message. When we say a key, it actually means a piece of string value which is fed to encyprtion and decryption algorithms along with the text for transformation. When the message reaches the destination, this system at the other end decrypts the cipher text into original message with the help of the key. This is called as Decryption System. The output of the Decryption System is the intended message. Depending on how the keys are shared, we can classify crytography as symmetric and asymmetric. If the keys used by both parties are same, then it is called symmetric key cryptography, or private key cryptography. If both parties use different keys for encyrption and decryption, then it is called asymmetric key cryptography or public key cryptography. video URL : https://www.youtube.com/watch?v=BEb_AnPWPwY Watch ALL CN VIDEOS: https://www.youtube.com/playlist?list=PL9OIoIp8YySF4mkIihOb_j2HZIRIlYuEx For more, visit http://www.EngineeringMentor.com Facebook: https://www.facebook.com/EngineeringMentor Twitter : https://twitter.com/Engi_Mentor
Views: 108622 Skill Gurukul
Digital Signature - Asymmetric Key Cryptography, Why used for Authentication and Non Repudiation (Hindi) Keywords: Digital Signature Asymmetric Encryption Authentication Non Repudiation
Views: 87268 Easy Engineering Classes
this videos is about encryption and decryption process .its all about security using public key and private key....this is very useful channel for computer courses in hindi ...........easiest way for e-learning...
Views: 57 SPT999
Hi, I’m Sy “The IT Guy” Williams, the owner of TeamLogic IT of Orlando In the previous video I provided an overview of Blockchain. In this video I’m going to discuss How Blockchains Work The Role of Miners Blockchain Immutability A blockchain is a peer-to-peer network that consist of wallets and nodes. A wallet can be a mobile or web based application. It has an address that can be the source and destination of a transaction. Wallets are used to create transactions, cryptographically sign the transactions, and communicate the transaction to the nearest node. All full nodes (called miners) receive all transactions either from a wallet or from a peer. Each node node will validate the transaction and bundle it with other transactions to create a block of transactions. Each new block is connected to the previous block by placing the hash value of the previous block into the new block. The logging of the previous block hash value is what creates the chain. A hash is a fixed length cryptographic representation of the data. When the node finds a specific hash value for the block it is creating it will add that block to its local copy of the blockchain. The node will notify peers that it has successfully created a new block. All peers will validate the new block before accepting it/adding it to its local copy of the blockchain. A hash is an algorithm that takes data input of any lengths and derives a unique fixed length output. A hash can be thought of as a fingerprint of the data. The creation of the hash is a one-way process meaning you can convert data to a hash but you can not take the hash value and convert it back to the data. The National Institute of Science and Technology (NIST) has published secure hash algorithms (SHA). Bitcoin uses secure hash algorithm SHA-256 and Ethereum uses secure hash algorithm SHA-3. The one-way translation provides a mechanism to validate data without revealing it. Public-key encryption uses two mathematically related keys: a public key known to everyone and a private key known only to the recipient of a message Your public key is used to encrypt the message and can be shared Your private key is used to decrypt messages, sign transactions, and should remain private. All transactions are digitally signed using private keys. All blocks are linked to the previous block via the previous block hash Any change to a block will change the block’s hash and invalidate succeeding blocks Invalid blocks won’t be accepted by other nodes in the blockchain network The other nodes will not add this change to their local copy of the blockchain
Views: 27 TeamLogic IT of Orlando
Extract public key for verification: http://stackoverflow.com/questions/10271197/openssl-how-to-extract-public-key Verify sign : https://raymii.org/s/tutorials/Sign_and_verify_text_files_to_public_keys_via_the_OpenSSL_Command_Line.html Encrpytion : http://askubuntu.com/questions/60712/how-do-i-quickly-encrypt-a-file-with-aes Measure time ; http://askubuntu.com/questions/53444/how-can-i-measure-the-execution-time-of-a-terminal-process Cpp files : (openssl sample code) http://www.cis.syr.edu/~wedu/seed/Labs_12.04/Crypto/Crypto_PublicKey/
Views: 3587 Jae duk Seo
This episode is brought to you by Squarespace: http://www.squarespace.com/physicsgirl With recent high-profile security decryption cases, encryption is more important than ever. Much of your browser usage and your smartphone data is encrypted. But what does that process actually entail? And when computers get smarter and faster due to advances in quantum physics, how will encryption keep up? http://physicsgirl.org/ http://twitter.com/thephysicsgirl http://facebook.com/thephysicsgirl http://instagram.com/thephysicsgirl http://physicsgirl.org/ Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator/Editor: Dianna Cowern Writer: Sophia Chen Animator: Kyle Norby Special thanks to Nathan Lysne Source: http://gva.noekeon.org/QCandSKD/QCand... http://physicsworld.com/cws/article/n... https://epic.org/crypto/export_contro... http://fas.org/irp/offdocs/eo_crypt_9... Music: APM and YouTube
Views: 279294 Physics Girl
What is SSH key pair? Why we need SSH key? How SSH key works? Authentication via ssh key pair. Generate and Use SSH key : https://goo.gl/hK9h54 Become My Patron here https://goo.gl/NcvDQh You can donate any amount via Paypal follow this link https://goo.gl/JhWsKC ============================================== Deploy Laravel on Digital Ocean Full series: 1. Log Into Server via SSH ? https://youtu.be/hlZk0BkX6XY 2. High Server Security https://youtu.be/T7WinEDS7e4 3. Install LEMP stack on Ubuntu server https://youtu.be/QY_eT7wBqwA 4. Install Laravel via Github on server https://youtu.be/oRGoN-2G-7w ============================================== Join Our Slack Community - https://goo.gl/pqCjZH --You May Also Like -- Real Time Chat Series - https://goo.gl/ri42FD Git ans Github series - https://goo.gl/BXyPxf Blog with Admin panel Series - https://goo.gl/S5JGyt Laravel Authentication Series: Multi Auth - https://goo.gl/TyCLlX Vue Beginner To advanced Series - https://goo.gl/1bjdGg Sublime Text Best Package Series - https://goo.gl/6phTPP Laravel Ajax Todo Project - https://goo.gl/p2xTPW Laravel 5.4 Full Beginner Playlist - https://goo.gl/zpKzhM Laravel 5.3 Hindi Beginner Tutorials - https://goo.gl/Kb3ikd Full Playlist for the "Laravel 5.3 Hindi Beginner Tutorials" Series: https://www.youtube.com/playlist?list=PLe30vg_FG4OS38IkXcimlq7bI1mzD8wB- ==================FOLLOW ME ================== Subscribe for New Releases! Twitter - https://twitter.com/bitfumes Facebook - https://www.facebook.com/Bitfumes/ Instagram - https://www.instagram.com/bitfumes/ (ask me questions!) --- QUESTIONS? --- Leave a comment below and I or someone else can help you. For quick questions you may also want to ask me on Twitter, I respond almost immediately. Email me [email protected] Thanks for all your support! LARAVEL 5.4 Tutorial | Cara Instal LARAVEL 5,4 dari awal Part 1 | Bitfumes Laravel 5.4 Tutorial | Come installare laravel 5,4 da zero Parte 1 | Bitfumes -~-~~-~~~-~~-~- Please watch: "Laravel 5.4 Tutorial | Email From Server (Godaddy) #3 | Part 26 | Bitfumes" https://www.youtube.com/watch?v=QQqJUypWctU -~-~~-~~~-~~-~- que es api ما هو أبي o que é api
Views: 45803 Bitfumes Webnologies
What protocol is used between a web server and its clients to establish trust? How do they negotiate and share the secret key? During the handshake process, how public key encryption algorithm is used and how private key encryption is used? In this video, you would find all these answers. Playlist: Advanced Cryptography - https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7 Playlist: Basic Cryptography https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV Please subscribe to my channel! Please leave comments or questions! Many thanks, Sunny Classroom
Views: 110226 Sunny Classroom
When we are online shopping or banking, we want to make sure it is HTTPS, and a green padlock icon is in the address bar. What does HTTPS mean? What is significant about that small green padlock? To answer these two questions, we need to understand SSL certificate and how it works. Playlist: Advanced Cryptography/Public Key Infrastructure https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7 Playlist: Basic Cryptography https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV Please leave comments, questions and please subscribe! Sunny Classroom
Views: 138196 Sunny Classroom
PKC, also known as Public Key Cryptography is a form of asymmetric encryption that makes use of two separate sets of keys- a public key and a private key. It is an integral part of Computing. The primary use of PKC is to encrypt communication. In today's video, we will be learning all about Encryption and Public Key Cryptography, we hope you like it. Thank you for watching! We’d love to know your thoughts in the comments section below. Also, don’t forget to hit the ‘like’ button and ‘subscribe’ to ‘Eduonix Learning Solutions’ for regular updates. http://bit.ly/2ITJDQb Follow Eduonix on other social networks: ■ Facebook: https://goo.gl/ZqRVjS ■ Twitter: https://goo.gl/oRDaji ■ Google+: https://goo.gl/mfPaxx ■ Instagram: https://goo.gl/7f5DUC | @eduonix ■ Linkedin: https://goo.gl/9LLmmJ ■ Pinterest: https://goo.gl/PczPjp
Views: 742 Eduonix Learning Solutions
In cryptography, encryption is the process of encoding messages (or information) in such a way that eavesdroppers or hackers cannot read it, but that authorized parties can.:374 In an encryption scheme, the message or information (referred to as plaintext) is encrypted using an encryption algorithm, turning it into an unreadable ciphertext (ibid.). This is usually done with the use of an encryption key, which specifies how the message is to be encoded. Any adversary that can see the ciphertext should not be able to determine anything about the original message. An authorized party, however, is able to decode the ciphertext using a decryption algorithm, that usually requires a secret decryption key, that adversaries do not have access to. For technical reasons, an encryption scheme usually needs a key-generation algorithm to randomly produce keys. There are two basic types of encryption schemes: Symmetric-key and public-key encryption.:375-376 In symmetric-key schemes, the encryption and decryption keys are the same. Thus communicating parties must agree on a secret key before they wish to communicate. In public-key schemes, the encryption key is published for anyone to use and encrypt messages. However, only the receiving party has access to the decryption key and is capable of reading the encrypted messages. Public-key encryption is a relatively recent invention: historically, all encryption schemes have been symmetric-key (also called private-key) schemes.:478 Encryption has long been used by militaries and governments to facilitate secret communication. It is now commonly used in protecting information within many kinds of civilian systems. For example, the Computer Security Institute reported that in 2007, 71% of companies surveyed utilized encryption for some of their data in transit, and 53% utilized encryption for some of their data in storage. Encryption can be used to protect data "at rest", such as files on computers and storage devices (e.g. USB flash drives). In recent years there have been numerous reports of confidential data such as customers' personal records being exposed through loss or theft of laptops or backup drives. Encrypting such files at rest helps protect them should physical security measures fail. Digital rights management systems which prevent unauthorized use or reproduction of copyrighted material and protect software against reverse engineering (see also copy protection) is another somewhat different example of using encryption on data at rest.
Views: 470 ITGoodGuy
A PKI (public key infrastructure) is often confused with a CA (certificate authority) but it is much more than that. A PKI includes all of the components required to enable the use of certificates. Because of this, it represents the attack surface an attacker can exploit when attempting to leverage certificates and keys in their attacks.
Views: 33710 Paul Turner
Hi friends my name is kanakesh, welcome to tech kanakesh YouTube channel Today I am going to discuss about cryptography pkg install openssl-tool pkg install nano For encrypting openssl enc -aes-256-cbc -in input_file_name.txt -out output_file_name.txt for decrypting openssl enc -aes-256-cbc -d -in input_file_name.txt -out output_file_name.txt NOTES: CRYPTOGRAPHY: Cryptography is the art of converting text into another form for secret transmission and reception. It works by converting plain text into cipher text using some encryption algorithm at the sender's side and converting ciphertext into plain text at the receiver’s. Cryptography is used to provide confidentiality, integrity, authenticity and non-repudiation. Key terms: Plain text: Message to be encrypted Ciphertext: Encrypted message Encryption: Process of converting plain text into cipher text. Decryption: Process of converting ciphertext into plain text. Algorithm: The method used to encrypt/decrypt the plain text. Key: The data used for encrypting/decrypting. Symmetric cryptography: Here one single key is used for encryption and same key is used for decryption. DES and AES are examples of symmetric key cryptography. Asymmetric cryptography/Public key cryptography: Here two keys are used, Public key is used for encryption and Private key is used for decryption; e.g. RSA. Source :internet Special thanks to Devaraj.s.m Sankalp.mollick Thanks friends. Subscribe to my channel
Views: 111 tech Kanakesh
Friends is video m hum Crytography,Encryption,Decryption,Symmetric key,Asymmetric key,Public key,Private key,Plain text and Cipher text kya hote hai in sb k bare main charcha krne wale hai or janne wale hai ki ye kya hote hai kaise ye kaam krte hai or in k kya kya fayde hai or sath hi hum ye bhi janenge ki Android Phone ko kaise encrypt kiya ja sakta hai toh is video ko End tak dekhen. I hope Aapko ye video Pasand aayegi Please Like,Share and SUBSCRIBE #JAI BHARAT It's My Passion Facebook :-https://www.facebook.com/TechnicalChoro Twitter:-https://twitter.com/TechnicalChoro Google+:-https://plus.google.com/b/114386885239188983906
Views: 24747 Technical Choro
SSH (Secure Shell) serves as one of the core authentication technologies for privileged access, enabling access to Unix/Linux systems, routers, switches, firewalls, etc. In spite of it's important role in security, many security executives don't have a basic understand of SSH. This short clip provides an introduction.
Views: 70257 Paul Turner
Today we’re going to talk about how to keep information secret, and this isn’t a new goal. From as early as Julius Caesar’s Caesar cipher to Mary, Queen of Scots, encrypted messages to kill Queen Elizabeth in 1587, theres has long been a need to encrypt and decrypt private correspondence. This proved especially critical during World War II as Allan Turing and his team at Bletchley Park attempted to decrypt messages from Nazi Enigma machines, and this need has only grown as more and more information sensitive tasks are completed on our computers. So today, we’re going to walk you through some common encryption techniques such as the Advanced Encryption Standard (AES), Diffie-Hellman Key Exchange, and RSA which are employed to keep your information safe, private, and secure. Note: In October of 2017, researchers released a viable hack against WPA2, known as KRACK Attack, which uses AES to ensure secure communication between computers and network routers. The problem isn't with AES, which is provably secure, but with the communication protocol between router and computer. In order to set up secure communication, the computer and router have to agree through what's called a "handshake". If this handshake is interrupted in just the right way, an attacker can cause the handshake to fault to an insecure state and reveal critical information which makes the connection insecure. As is often the case with these situations, the problem is with an implementation, not the secure algorithm itself. Our friends over at Computerphile have a great video on the topic: https://www.youtube.com/watch?v=mYtvjijATa4 Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios Want to know more about Carrie Anne? https://about.me/carrieannephilbin The Latest from PBS Digital Studios: https://www.youtube.com/playlist?list=PL1mtdjDVOoOqJzeaJAV15Tq0tZ1vKj7ZV Want to find Crash Course elsewhere on the internet? Facebook - https://www.facebook.com/YouTubeCrash... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 232103 CrashCourse
A Video Guide to learn about Encryption, Public Key Infrastructure and SSL Certificate in details This guide covers • What are Encryption and Decryption • How web Encryption works • Methods of Encryption and algorithms • What is Encryption Key • 256-bit encryption and its security features • Public Key and Private Key Infrastructure • How to keep the user’s private information safe • (HTTPS) SSL Certificate & TLS Certificate to encrypt the information
Views: 211 Jake Adley
Security+ Training Course Index: http://professormesser.link/sy0501 Professor Messer’s Course Notes: http://professormesser.link/501cn Frequently Asked Questions: http://professormesser.link/faq - - - - - If you’re planning to implement cryptography, then you’ll probably be using either symmetric encryption or asymmetric encryption. In this video, you’ll learn about both of these valuable encryption mechanisms. - - - - - 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: 28042 Professor Messer
Digital Signature: https://www.youtube.com/watch?v=TmA2QWSLSPg&t=2s Digital signature is used for authentication, non-repudiation and data integrity, but there is one weakness of digital signature alone: man-in-the-middle attack. Digital certificates are electronic credentials issued by a trusted third party. A digital certificate not only verifies the identity of the owner, but also verifies that the owner owns the public key. In this video, I will demonstrate why digital signature has weakness and how digital certificate comes in place to make sure digitally signed document must come originally from the claimed sender. Advanced Cryptography: https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7 Playlist: Basic Cryptography https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV Please leave comments, questions and please subscribe! Sunny Classroom
Views: 43819 Sunny Classroom
Dual Server Public Key Encryption with keyword search for secure cloud storage Abstract: Searchable encryption is of increasing interest for protecting the data privacy in secure searchable cloud storage. In this paper, we investigate the security of a well-known cryptographic primitive, namely, public key encryption with keyword search (PEKS) which is very useful in many applications of cloud storage. Unfortunately, it has been shown that the traditional PEKS framework suffers from an inherent insecurity called inside keyword guessing attack (KGA) launched by the malicious server. To address this security vulnerability, we propose a new PEKS framework named dual-server PEKS (DS-PEKS). As another main contribution, we define a new variant of the smooth projective hash functions (SPHFs) referred to as linear and homomorphic SPHF (LH-SPHF). We then show a generic construction of secure DS-PEKS from LH-SPHF. To illustrate the feasibility of our new framework, we provide an efficient instantiation of the general framework from a Decision Diffie-Hellman-based LH-SPHF and show that it can achieve the strong security against inside the KGA. SIMILAR VIDEOS: https://www.youtube.com/watch?v=AZI6oHAEtU8 https://www.youtube.com/watch?v=o0mT99zKAqA https://www.youtube.com/watch?v=X7jZtTq74WU https://www.youtube.com/watch?v=EO1rgFk07kQ https://www.youtube.com/watch?v=ACtU9aaoh_8 https://www.youtube.com/watch?v=cbZFKV4A0X8 https://www.youtube.com/watch?v=AWcD3pIGJjI https://www.youtube.com/watch?v=0y5w5CbMips https://www.youtube.com/watch?v=rhCtDFPNHCE https://www.youtube.com/watch?v=t41nfgBy8pY https://www.youtube.com/watch?v=LLUlzVlIJOw https://www.youtube.com/watch?v=mSjS4IGyrW0 https://www.youtube.com/watch?v=1TnAqAkxuws https://www.youtube.com/watch?v=nxoUUe8rrtQ https://www.youtube.com/watch?v=XBzwg1EY2SI https://www.youtube.com/watch?v=RRVWWUd9NLk https://www.youtube.com/watch?v=Es0eHDHksiM https://www.youtube.com/watch?v=x5CAAPGuo3g https://www.youtube.com/watch?v=sQKIpfEpQmo https://www.youtube.com/watch?v=hcmrJkwn1T4 https://www.youtube.com/watch?v=cNw3u68a424 https://www.youtube.com/watch?v=6sKfA1vFZBA https://www.youtube.com/watch?v=cFsryGMYxIE For More Videos - https://www.youtube.com/channel/UCR5lsF-lDQu6rVYVJPqNn6Q SOCIAL HANDLES: SCOOP IT- http://www.scoop.it/u/1croreprojects FACEBOOK - https://www.facebook.com/1Croreprojectsieeeprojects/ TWITTER - https://twitter.com/1crore_projects LINKEDIN - https://www.linkedin.com/in/1-crore-projects-ba982a118/ GOOGLE+ - https://plus.google.com/u/0/105783610929019156122 PINTEREST - https://in.pinterest.com/onecroreproject/ BLOG - 1croreprojectz.blogspot.com DOMAIN PROJECTS DOTNET - http://www.1croreprojects.com/dotnet-ieee-project-centers-in-chennai.php JAVA - http://www.1croreprojects.com/java-ieee-projects-chennai.php EMBEDDED - http://www.1croreprojects.com/embedded-systems-ieee-projects-chennai.php MATLAB - http://www.1croreprojects.com/matlab-ieee-projects-chennai.php NS2 - http://www.1croreprojects.com/ns2-ieee-projects-chennai.php VLSI -http://www.1croreprojects.com/vlsi-ieee-projects-chennai.php FOR PROJECTS - http://www.1croreprojects.com/ BUSINESS CONTACT: Email - [email protected] We are always open for all business prospects. You can get in touch which us, using the above mentioned e-mail id and contact number. ABOUT 1CROREPROJECTS: 1Crore Projects is company providing outstanding, cost-effective, effective result authorized on solutions. Our objective is to create solutions that enhance company process and increase come back in most possible time. We started truly to provide solutions to the customers all over the world. We have been effectively in providing solutions for different challenges across a wide range of market and customers propagate across the globe.
Views: 1371 1 Crore Projects
Please Fill the form - https://docs.google.com/forms/d/1kOxvqvz1IvBMHJ3UeLecLDuK7ePKjHAvHaRcxduHKEE/edit ====================================================== Answer of your Questions Asked to me. (direct Link given below) Blogger Link - http://shalik-htd.blogspot.com/ c programming - https://www.youtube.com/playlist?list=PLCZJSEiJwWZ6nY1vuEAG8Ut2S4_E0X36G ====================================================== Hey, friends, I upload the videos in this channel in Hindi for Engineering student of UPTU and other universities for computer science and IT (information technology) students. like share and subscribe my channel ====================================================== Install C Programming Solution Android app - https://play.google.com/store/apps/details?id=com.shalik.patel.cprogrammingsolution ====================================================== ====================================================== My Career Planning android app - https://play.google.com/store/apps/details?id=guide.mycareer.com.rec.mycareer ====================================================== ====================================================== My Android App for my College Library (An Official App Of College Library) - https://play.google.com/store/apps/details?id=jrv.library.rec.reclibrary ====================================================== How to use android application - https://www.youtube.com/watch?v=1hMZCvl-JxM ====================================================== Contact me on Facebook - https://www.facebook.com/HTD-hub-250593705388294/?ref=br_rs ====================================================== Follow me on twitter - https://twitter.com/PatelShalik ======================================================
Views: 18608 hindi tutorials darshan
This Authentication training video is part of the CISSP FREE training course from Skillset.com (https://www.skillset.com/certifications/cissp). Skillset helps you pass your certification exam. Faster. Guaranteed. https://www.skillset.com Topic: Symmetric Key Cryptography Skill: Cryptography Fundamentals Skillset: Security Engineering Certification: CISSP Join the 40,000+ candidates in over 58 countries that have found a faster, better way to pass their certification exam. + Unlimited access to thousands of practice questions + Exam readiness score + Smart reinforcement + Focused training ensures 100% exam readiness + Personalized learning plan + Align exam engine to your current baseline knowledge + Eliminate wasted study time + Exam pass guarantee And much more - https://www.skillset.com
Views: 5446 Skillset
In this video I have described what is Encryption , encryption keys and types of Encryption , Use of encryption software , Cryptography is the science of using mathematics to encrypt and decrypt data. Cryptography enables you to store sensitive information or transmit it across insecure networks (like the Internet) so that it cannot be read by anyone except the intended recipient. Encryption is used to ensure that information is hidden from anyone for whom it is not intended, even those who can see the encrypted data. The process of reverting cipher text to its original plaintext is called decryption A key is a value that works with a cryptographic algorithm to produce a specific cipher text. Keys are basically very, very, very big numbers. Key size is measured in bits In conventional cryptography, also called secret-key or symmetric-key encryption, the same key is used both for encryption and decryption. The figure below is an illustration of the conventional encryption process. Public key cryptography is an asymmetric scheme that uses a pair of keys: a public key, which encrypts data, and a corresponding private key, or secret key for decryption Each user has a key pair with him. The public key is published to the world while the private key is kept secret. Anyone with a copy of the public key can then encrypt information that only the person having the corresponding private key can read what is encryption , encryption keys , encryption software || cyber security in hindi website :- http://pareshtech.blogspot.com you tube - cyber support please like comment and subscribe my you tube channel
Views: 186 cyber support
Kerberos - Authentication Server , DataBase and Ticket Granting Service are combined and implemented as kerberos. Secure Authentication Message Exchanges client -- Authentication Server Authentication Server -- Client Client -- Ticket Granting Serverr Ticket Granting Server -- Client Client -- Server Server -- Clent for Mutual Authentication
Views: 55690 Sundeep Saradhi Kanthety
Learn how to leverage proven technologies to identify devices, encrypt communications, and ensure data integrity in your IoT infrastructure. https://goo.gl/6YOydp - Click below to navigate webinar. Topics include: 2:04 PKI's role in securing the Internet of Things 2:14 PKI's role in Authentication 2:46 PKI's role in Encryption 3:21 PKI's role in Data Integrity 4:07 Considerations when looking into PKI for the IoT 8:00 Examples of implementations for PKI for the IoT 8:10 SpiderCloud Wireless 8:50 Napera 9:46 Securing Network Access Devices 10:30 The Future of Public Key Infrastructure for the Internet of Things 11:04 Evolving PKI to meet the needs of the Internet of Things 12:53 Scaling Public Key Infrastructure 13:34 IoT Ecosystem Key Players 14:30 Platform Provider Use Case 17:50 Cloud Provider Use Case 19:51 Security Standards and Alliances 21:18 Is PKI the Answer to Securing IoT
Views: 3834 GlobalSign
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: 44495 Amazon Web Services