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IDEA (International Data Encryption Algorithm) | Complete Encryption Process in Detail with Diagrams
 
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In this network security video tutorial we will study the IDEA algorithm in cryptography. IDEA stands for International Data Encryption Algorithm. IDEA algorithm theory - 1. IDEA was launched in 1990. 2. It was implemented in 1992 after underwent certain changes in names and capabilities. 3. IDEA is Quite strong, but not as popular as DES. 4. One popular email privacy technology known as Pretty Good Privacy (PGP) based on IDEA. 5. It is a Block Cipher. 6. Like DES it works on 64-bit plain text block. 7. The Key consists of 128 bits. 8. Idea is reversible like DES 9. Idea uses both diffusion and confusion for encryption 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/ #IDEAAlgorithm #IDEA #NetworkSecurity #Encryption
Views: 8888 Simple Snippets
NETWORK SECURITY - DES (DATA ENCRYPTION STANDARD) ALGORITHM
 
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DES algorithm follows the Feistel Structure Most of the Block cipher algorithms follows Feistel Structure BLOCK SIZE - 64 bits Plain Text No. of Rounds - 16 Rounds Key Size - 64 bits Sub Key Size - 48 bits No. of Sub Keys - 16 Sub Keys Cipher Text - 64 bits
Views: 190998 Sundeep Saradhi Kanthety
Cryptography and Network Security for GATE - International Data Encryption Algorithm - GATE(CSE)
 
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The complete YouTube playlist can be viewed here: https://goo.gl/mjyDev This lesson explains International Data Encryption Algorithm, under the course, "Cryptography and Network Security for GATE Computer Science Engineering". The lesson explains the following subtopics: International Data Encryption Algorithm Subkey Generation Encryption Decryption Round operations Some important terminology and concepts are also illustrated, for the better understanding of the subject. For the entire course: https://goo.gl/aTMBNZ For more lessons by Ansha Pk: https://goo.gl/2DX9Wn Must watch for all the GATE/ESE/PSU Exams. Download the Unacademy Learning App from the Google Play Store here:- https://goo.gl/02OhYI Download the Unacademy Educator app from the Google Play Store here: https://goo.gl/H4LGHE Do Subscribe and be a part of the community for more such lessons here: https://goo.gl/UGFo7b Visit Our Facebook Group on GATE here: https://goo.gl/cPj5sb Cryptography and Network Security for GATE - International Data Encryption Algorithm - GATE(CSE) - Unacademy
DES (Data encryption standard ) key Generation in Hindi |Cryptography and Network Security Lectures
 
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Take the Full Course of Cryptography and Network Security What we Provide 1) 20 Videos (Index is given down) + More Update will be Coming Before final exams 2)Hand made Notes with problems for your to practice 3)Strategy to Score Good Marks in Cryptography and Network Scurity To buy the course click https://goo.gl/mpbaK3 if you have any query email us at [email protected] Sample Notes : https://goo.gl/Ze1FpX or Fill the form we will contact you https://goo.gl/forms/2SO5NAhqFnjOiWvi2 Cryptography and System Security Index Lecture 1 Introduction to Cryptography and Security System Lecture 2 Security Goals and Mechanism Lecture 3 Symmetric Cipher Lecture 4 Substitution Cipher Lecture 5 Transposition Cipher Lecture 6 Stream and Block Cipher Lecture 7 Mono Alphabetic Cipher Lecture 8 Poly Alphabetic Cipher Lecture 9 Diffie Hellman Lecture 10 RSA Algorithm with Solved Example Lecture 11 IDEA Algorithm Full Working Lecture 12 SHA-1 Algorithm Full Working Lecture 13 Blowfish Algorithm Full working Lecture 14 DES Algorithm Full Working Lecture 15 Confusion and Diffusion Lecture 16 AES Algorithm Full working Lecture 17 Kerberos Lecture 18 Malicious Software ( Virus and worms ) Lecture 19 DOS and DDOS Attack Lecture 20 Digital Signature Full working Explained
Views: 42504 Last moment tuitions
NETWORK SECURITY- AES (ADVANCED ENCRYPTION STANDARD) Algorithm
 
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AES algorithm is the Block Cipher Symmetric Algorithm Block Size is 128 bits Key Size is 128 bits ( 4 words or 16 Bytes ) Sub Key Size is 1 Word (32 bit) Number of Sub keys 44 Words Number of Rounds 10 Cipher Text Size is 128 bits
Views: 116981 Sundeep Saradhi Kanthety
RSA Algorithm with solved example using extended euclidean algorithm | CSS series #7
 
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#rsa #deffiehellman #cryptographylectures #lastmomenttuitions Take the Full Course of Cryptography and Network Security What we Provide 1) 20 Videos (Index is given down) + More Update will be Coming Before final exams 2)Hand made Notes with problems for your to practice 3)Strategy to Score Good Marks in Cryptography and Network Scurity To buy the course click https://goo.gl/mpbaK3 if you have any query email us at [email protected] Sample Notes : https://goo.gl/Ze1FpX or Fill the form we will contact you https://goo.gl/forms/2SO5NAhqFnjOiWvi2 Cryptography and System Security Index Lecture 1 Introduction to Cryptography and Security System Lecture 2 Security Goals and Mechanism Lecture 3 Symmetric Cipher Lecture 4 Substitution Cipher Lecture 5 Transposition Cipher Lecture 6 Stream and Block Cipher Lecture 7 Mono Alphabetic Cipher Lecture 8 Poly Alphabetic Cipher Lecture 9 Diffie Hellman Lecture 10 RSA Algorithm with Solved Example Lecture 11 IDEA Algorithm Full Working Lecture 12 SHA-1 Algorithm Full Working Lecture 13 Blowfish Algorithm Full working Lecture 14 DES Algorithm Full Working Lecture 15 Confusion and Diffusion Lecture 16 AES Algorithm Full working Lecture 17 Kerberos Lecture 18 Malicious Software ( Virus and worms ) Lecture 19 DOS and DDOS Attack Lecture 20 Digital Signature Full working Explained More videos Coming Soon.
Views: 321741 Last moment tuitions
Rail Fence cipher Encryption and Decryption
 
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This is a method of transposition cipher another method i.e. Rectangular Transposition is discussed in the following link--https://www.youtube.com/watch?v=ODXfkZ4d7n4
Views: 7900 VIDS GO
Java prog#129. How to encrypt and decrypt data in Java Part 1
 
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------------------Online Courses to learn---------------------------- Java - https://bit.ly/2H6wqXk C++ - https://bit.ly/2q8VWl1 AngularJS - https://bit.ly/2qebsLu Python - https://bit.ly/2Eq0VSt C- https://bit.ly/2HfZ6L8 Android - https://bit.ly/2qaRSAS Linux - https://bit.ly/2IwOuqz AWS Certified Solutions Architect - https://bit.ly/2JrGoAF Modern React with Redux - https://bit.ly/2H6wDtA MySQL - https://bit.ly/2qcF63Z ----------------------Follow--------------------------------------------- My Website - http://www.codebind.com My Blog - https://goo.gl/Nd2pFn My Facebook Page - https://goo.gl/eLp2cQ Google+ - https://goo.gl/lvC5FX Twitter - https://twitter.com/ProgrammingKnow Pinterest - https://goo.gl/kCInUp Text Case Converter - https://goo.gl/pVpcwL -------------------------Stuff I use to make videos ------------------- Stuff I use to make videos Windows notebook – http://amzn.to/2zcXPyF Apple MacBook Pro – http://amzn.to/2BTJBZ7 Ubuntu notebook - https://amzn.to/2GE4giY Desktop - http://amzn.to/2zct252 Microphone – http://amzn.to/2zcYbW1 notebook mouse – http://amzn.to/2BVs4Q3 ------------------Facebook Links ---------------------------------------- http://fb.me/ProgrammingKnowledgeLearning/ http://fb.me/AndroidTutorialsForBeginners http://fb.me/Programmingknowledge http://fb.me/CppProgrammingLanguage http://fb.me/JavaTutorialsAndCode http://fb.me/SQLiteTutorial http://fb.me/UbuntuLinuxTutorials http://fb.me/EasyOnlineConverter Password Encryption.java JAVA ENCRYPTION/DECRYPTION PROGRAM HELP Encrypting and Decrypting Java Cryptography using Java in Netbeans IDE Cryptography using Java in Netbeans IDE Java Cryptography APIs Cryptography Encrypting and Decrypting a text file in java
Views: 105155 ProgrammingKnowledge
Cryptography: The Science of Making and Breaking Codes
 
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There are lots of different ways to encrypt a message, from early, simple ciphers to the famous Enigma machine. But it’s tough to make a code truly unbreakable. Hosted by: Michael Aranda ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Justin Ove, John Szymakowski, Fatima Iqbal, Justin Lentz, David Campos, and Chris Peters. ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/scishow Or help support us by becoming our patron on Patreon: https://www.patreon.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow Sources: http://www.vectorsite.net/ttcode_04.html#m3 http://www.simonsingh.net/The_Black_Chamber/crackingprinciple.html http://book.itep.ru/depository/crypto/Cryptography_history.pdf http://www.cs.trincoll.edu/~crypto/historical/gronsfeld.html http://www.sans.org/reading-room/whitepapers/vpns/history-encryption-730 http://ftp.stmarys-ca.edu/jsauerbe/m10s11/chapter5.pdf http://www.turing.org.uk/scrapbook/ww2.html http://enigma.louisedade.co.uk/howitworks.html http://www.codesandciphers.org.uk/enigma/example1.htm http://www.pbs.org/wgbh/nova/military/how-enigma-works.html http://www.cs.miami.edu/~burt/learning/Csc609.051/notes/02.html
Views: 824738 SciShow
Cipher Feedback Mode(CFB) | Algorithm Modes in Cryptography
 
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In this network security video tutorial we will study and understand the working of Cipher Cipher Feedback (CFB) also known as CFB algorithm mode. Cipher Feedback (CFB) - 1. In this mode data is encrypted in units that are smaller (e.g. they could be of size 8 bits) than a defined block size (which is usually 64 bits). 2. CFB mode works with j bits at a time (as we have seen, usually, but not always , j = 8) Following are the steps of CFB mode - Step 1 - Encrypt the IV(initialization vector) using the KEY to get the Encrypted IV. Step 2 - Perform XOR operation between first j bits of encrypted IV and j bits of Plain Text to get j bits of Cipher Text(Cipher text block 1) Step 3 - left shift the IV by j bits & add the cipher text block from the previous step to the right most side of the IV. 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/ #CipherFeedbackMode #AlgorithmModes #NetworkSecurity #CFB #Cryptography #BlockCiphers
Views: 4062 Simple Snippets
Counter Mode Encryption (CTR) | Algorithm Modes in Cryptography
 
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In this network security video tutorial we will study and understand the working of Counter Mode (CTR) also known as CTR algorithm mode. Counter Mode (CTR) - 1. Counter Mode uses sequence numbers called as counters as the inputs. 2. Usually a constant is used as the initial counter value Incremented for every iteration. 3. The size of the counter block is same as that of the plain text block. 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/ #CounterMode #AlgorithmModes #NetworkSecurity #Cryptography #BlockCiphers
Views: 2530 Simple Snippets
Java Projects With Source Code - AES Encryption and Decryption in Java Part - 3
 
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This video show you how to use previously written AES algorithm code to encrypt and decrypt the text.
Views: 29865 Amarnath R
Data Encryption: Simple Idea, Complex Math | Show Me | NBC News
 
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Protecting your data through encryption may require complex math, but the process is surprisingly simple. » Subscribe to NBC News: http://nbcnews.to/SubscribeToNBC » Watch more NBC video: http://bit.ly/MoreNBCNews NBC News is a leading source of global news and information. Here you will find clips from NBC Nightly News, Meet The Press, and our original series Debunker, Flashback, Nerdwatch, and Show Me. Subscribe to our channel for news stories, technology, politics, health, entertainment, science, business, and exclusive NBC investigations. Connect with NBC News Online! Visit NBCNews.Com: http://nbcnews.to/ReadNBC Find NBC News on Facebook: http://nbcnews.to/LikeNBC Follow NBC News on Twitter: http://nbcnews.to/FollowNBC Follow NBC News on Google+: http://nbcnews.to/PlusNBC Follow NBC News on Instagram: http://nbcnews.to/InstaNBC Follow NBC News on Pinterest: http://nbcnews.to/PinNBC Data Encryption: Simple Idea, Complex Math | Show Me | NBC News
Views: 1995 NBC News
The Enigma Machine Explained
 
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As technology increases, so do the methods of encryption and decryption we have at our disposal. World War II saw wide use of various codes from substitution ciphers to employing Navajo code talkers in the Pacific theater. Here, science journalist and author Simon Singh demonstrates the German enigma machine, a typewriter-like device used to encrypt communications. He demonstrates not only its operation, but both the strength and fatal flaws in its method. Watch the Full Program Here: https://youtu.be/nVVF8dgKC38 Original Program Date: June 4, 2011 The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future. Subscribe to our YouTube Channel for all the latest from WSF. Visit our Website: http://www.worldsciencefestival.com/ Like us on Facebook: https://www.facebook.com/worldsciencefestival Follow us on twitter: https://twitter.com/WorldSciFest
Views: 516542 World Science Festival
Cryptography with Google Tink
 
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Symmetric key: http://asecuritysite.com/encryption/tink01 MAC: http://asecuritysite.com/encryption/tink02 Digital signing: http://asecuritysite.com/encryption/tink03 Article: https://medium.com/coinmonks/cryptography-with-google-tink-33a70d71918d
Views: 696 Bill Buchanan OBE
Password based Encryption / Decryption on Android with AES Algorithm
 
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Learn to Encrypt and Decrypt data on Android Applications with the Advanced Encryption Standard (AES) Algorithm. Note that this tutorial has been made by Tamil for the SSaurel's Channel. If you want to collaborate on the SSaurel's Channel, don't hesitate to send me your ideas for further details. ► Discover all the Android Apps offered by SSaurel Mobile Apps : https://play.google.com/store/apps/dev?id=6924401024188312025 ► Learn to create Android Apps step by step on the SSaurel's Blog : https://www.ssaurel.com/blog ► Enter in the Bitcoin and cryptocurrency World : https://www.toutsurlebitcoin.fr
Views: 35650 Sylvain Saurel
Applied Cryptography: DES in Java - Part 1
 
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Previous video: https://youtu.be/YERCLbyoizY Next video: https://youtu.be/K__Y0BK6GFM
Views: 2585 Leandro Junes
Asymmetric encryption - Simply explained
 
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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
symmetric key cryptography
 
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https://8gwifi.org/CipherFunctions.jsp Reference book: http://leanpub.com/crypto Cryptographic Algorithms generally fall into one of two different categories, or are a combination of both. Symmetric Fast Only provide confidentiality Examples: DES, AES, Blowfish, RC4, RC5 Asymmetric Large mathematical operations make it slower than symmetric algorithms No need for out of band key distribution (public keys are public!) Scales better since only a single key pair needed per individual Can provide authentication and nonrepudiation Examples: RSA, El Gamal, ECC, Diffie-Hellman problem with symmetric key cryptography DES (Data Encryption Standard) 64 bit key that is effectively 56 bits in strength Actual algorithm is called DEA (Data Encryption Algorithm) DES Modes Electronic Code Book Cipher Block Chaining (most commonly used for general purpose encryption) Cipher Feedback Output Feedback Counter Mode (used in IPSec) 3DES 112-bit effective key length Uses either 2 or 3 different smaller keys in one of several modes Modes EEE2/3 EDE2/3 AES NIST replaced DES in 1997 with this Uses the Rijndael algorithm Supports key/block sizes of 128, 192, and 256 bits Uses 10/12/14 rounds as block size increases IDEA (International Data Encryption Algorithm) Operates on 64 bit blocks in 8 rounds with 128 bit key Considered stronger than DES and is used in PGP Blowfish 64 bit block cipher with up to 448 bit key and 16 rounds Designed by Bruce Schneier RC4 Stream cipher with variable key size created by Ron Rivest RC5 Another Rivest cipher Block cipher with 32/64/128 bit blocks and keys up to 2048 bits RC6 Beefier version of RC5 submitted as AES candidate CAST 64 bit block cipher with keys between 40-128 bits with 12-16 rounds depending on key length CAST-256 used 128-bit blocks and keys from 128-256 bits using 48 rounds SAFER (Secure and Fast Encryption Routine) Set of patent-free algorithms in 64 and 128 bit block variants Variation used in Bluetooth Twofish Adapted version of Blowfish with 128 bit blocks, 128-256 bit keys and 16 rounds AES Finalist Kryptografie mit symmetrischem Schlüssel symmetric key cryptography symmetric key cryptography tutorial symmetric key cryptography example symmetric key cryptography vs asymmetric key cryptography symmetric and asymmetric key cryptography symmetric key cryptography Kryptografie mit symmetrischem Schlüssel Kryptographie mit symmetrischem Schlüssel Kryptographie mit symmetrischem Schlüssel Kryptografie mit symmetrischem Schlüssel und asymmetrische Schlüsselkryptographie symmetrische und asymmetrische Schlüsselkryptographie Kryptografie mit symmetrischem Schlüssel
Views: 42485 Zariga Tongy
Cryptography - Idea
 
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I created this video with the YouTube Video Editor (http://www.youtube.com/editor)
Elliptic Curve Cryptography(ECC) - GATE Computer Science
 
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The complete YouTube playlist can be viewed here: https://goo.gl/mjyDev This lesson explains the concept of the Elliptic Curve Cryptography(ECC), under the course, "Cryptography and Network Security for GATE Computer Science Engineering". The lesson explains the questions on the following subtopics: Elliptic Curve Cryptography(ECC) ECC - Public key cryptosystem ECC - Key Exchange ECC - Encryption and Decryption Elliptic curve Some important terminology and concepts are also illustrated, for the better understanding of the subject. For the entire course: https://goo.gl/aTMBNZ For more lessons by Ansha Pk: https://goo.gl/2DX9Wn Must watch for all the GATE/ESE/PSU Exams. Download the Unacademy Learning App from the Google Play Store here:- https://goo.gl/02OhYI Download the Unacademy Educator app from the Google Play Store here: https://goo.gl/H4LGHE Do Subscribe and be a part of the community for more such lessons here: https://goo.gl/UGFo7b Visit Our Facebook Group on GATE here: https://goo.gl/cPj5sb Elliptic Curve Cryptography(ECC) - GATE Computer Science - Unacademy
How to Break Cryptography | Infinite Series
 
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Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi Only 4 steps stand between you and the secrets hidden behind RSA cryptography. Find out how to crack the world’s most commonly used form of encryption. Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode: Can We Combine pi & e into a Rational Number? https://www.youtube.com/watch?v=bG7cCXqcJag&t=25s Links to other resources: Shor's paper: https://arxiv.org/abs/quant-ph/9508027v2 Lecture on Shor's Algorithm: https://arxiv.org/pdf/quant-ph/0010034.pdf Blog on Shor's algorithm: http://www.scottaaronson.com/blog/?p=208 Video on RSA cryptography: https://www.youtube.com/watch?v=wXB-V_Keiu8 Another video on RSA cryptography: https://www.youtube.com/watch?v=4zahvcJ9glg Euler's Big Idea: https://en.wikipedia.org/wiki/Euler%27s_theorem (I can find a non-wiki article, but I don't actually use this in the video. It's just where to learn more about the relevant math Euler did.) Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Made by Kornhaber Brown (www.kornhaberbrown.com) Challenge Winner - Reddles37 https://www.youtube.com/watch?v=bG7cCXqcJag&lc=z135cnmgxlbwch1ds233sbzgaojkivaz004 Comments answered by Kelsey: Joel David Hamkins https://www.youtube.com/watch?v=bG7cCXqcJag&lc=z13zdpcwyk2ofhugh04cdh4agsr2whmbsmk0k PCreeper394 https://www.youtube.com/watch?v=bG7cCXqcJag&lc=z135w324kw21j1qi104cdzvrpoixslmq1jw
Views: 195434 PBS Infinite Series
Cipher Block Chaining Mode - Applied Cryptography
 
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This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 64384 Udacity
Public Key Cryptography: RSA Encryption Algorithm
 
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RSA Public Key Encryption Algorithm (cryptography). How & why it works. Introduces Euler's Theorem, Euler's Phi function, prime factorization, modular exponentiation & time complexity. Link to factoring graph: http://www.khanacademy.org/labs/explorations/time-complexity
Views: 583420 Art of the Problem
Output Feedback Mode (OFB) | Algorithm Modes in Cryptography
 
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In this network security video tutorial we will study and understand the working of Output Feedback (OFB) also known as OFB algorithm mode. Output Feedback (OFB) - 1. In this mode data is encrypted in units that are smaller (e.g. they could be of size 8 bits) than a defined block size (which is usually 64 bits). 2. OFB mode works with j bits at a time (as we have seen, usually, but not always , j = 8) 3. OFB mode is extremely similar to the CFB 4. The only difference is that in the case of CFB, the cipher text is fed into the next stage of encryption process. 5. In case of OFB, the output of the IV encryption process is fed into the next stage of encryption process. Following are the steps of OFB mode - Step 1 - Encrypt the IV(initialization vector) using the KEY to get the Encrypted IV. Step 2 - Perform XOR operation between first j bits of encrypted IV and j bits of Plain Text to get j bits of Cipher Text(Cipher text block 1) Step 3 - left shift the IV by j bits & add theencrypted IV from the previous step to the right most side of the original IV. 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]il.com For More Technology News, Latest Updates and Blog articles visit our Official Website - http://simplesnippets.tech/ #OutputFeedbackMode #AlgorithmModes #NetworkSecurity #Cryptography #BlockCiphers
Views: 3054 Simple Snippets
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: 441867 Computerphile
Block Cipher Mode : Cipher Block Chaining (cbc)  Mode Explained in Hindi
 
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📚📚📚📚📚📚📚📚 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: 8639 5 Minutes Engineering
data encryption standard ,des animated  tutorial
 
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https://8gwifi.org/CipherFunctions.jsp Encryption Decryption Online https://8gwifi.org/CipherFunctions.jsp what is DES DATA ENCRYPTION STANDARD (DES) The Data Encryption Standard (DES) specifies two FIPS approved cryptographic algorithms as required by FIPS 140-1. When used in conjunction with American National Standards Institute (ANSI) X9.52 standard, this publication provides a complete description of the mathematical algorithms for encrypting (enciphering) and decrypting (deciphering) binary coded information. Encrypting data converts it to an unintelligible form called cipher. Decrypting cipher converts the data back to its original form called plaintext. The algorithms described in this standard specifies both enciphering and deciphering operations which are based on a binary number called a key computer security cryptography data encryption standard animation
Views: 74114 Zariga Tongy
How Quantum Computers Break Encryption | Shor's Algorithm Explained
 
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Go to http://www.dashlane.com/minutephysics to download Dashlane for free, and use offer code minutephysics for 10% off Dashlane Premium! Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics This video explains Shor’s Algorithm, a way to efficiently factor large pseudoprime integers into their prime factors using a quantum computer. The quantum computation relies on the number-theoretic analysis of the factoring problem via modular arithmetic mod N (where N is the number to be factored), and finding the order or period of a random coprime number mod N. The exponential speedup comes in part from the use of the quantum fast fourier transform which achieves interference among frequencies that are not related to the period (period-finding is the goal of the QFT FFT). REFERENCES RSA Numbers (sample large numbers to try factoring) https://en.wikipedia.org/wiki/RSA_numbers IBM on RSA https://www.ibm.com/support/knowledgecenter/en/SSB23S1.1.0.13/gtps7/s7pkey.html Modulo Multiplication Group Tables http://mathworld.wolfram.com/ModuloMultiplicationGroup.html Difference of squares factorization https://en.wikipedia.org/wiki/Difference_of_two_squares Euclid’s Algorithm https://en.wikipedia.org/wiki/Euclideanalgorithm Rational sieve for factoring https://en.wikipedia.org/wiki/Rational_sieve General Number field Sieve https://en.wikipedia.org/wiki/Generalnumberfieldsieve Scott Aaronson blog post about Shor’s Algorithm https://www.scottaaronson.com/blog/?p=208 Experimental implementation of Shor’s Algorithm (factoring 15, 21, and 35) https://arxiv.org/pdf/1903.00768.pdf Adiabatic Quantum Computation factoring the number 291311 https://arxiv.org/pdf/1706.08061.pdf Scott Aaronson course notes https://www.scottaaronson.com/qclec/ https://www.scottaaronson.com/qclec/combined.pdf Shor’s Algorithm on Quantiki https://www.quantiki.org/wiki/shors-factoring-algorithm TLS And SSL use RSA encryption https://en.wikipedia.org/wiki/TransportLayerSecurity Dashlane security whitepaper https://www.dashlane.com/download/DashlaneSecurityWhitePaperOctober2018.pdf Link to Patreon Supporters: http://www.minutephysics.com/supporters/ MinutePhysics is on twitter - @minutephysics And facebook - http://facebook.com/minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Created by Henry Reich
Views: 983253 minutephysics
Advanced Crypto: ECB, CBC, CFB and OFB
 
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http://asecuritysite.com/encryption/threedes
Views: 15456 Bill Buchanan OBE
What is Data Encryption Standard and how to implement it in C#.net Tutorial
 
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In this tutorial I will show you what is DES (Data Encryption Standard) and also I will show you how you write DES encryption and decryption algorithm in c#.net. DES is symmetric encryption and it uses 64 bits as a key size for encryption and decryption. For two communicating parties using symmetric encryption for secure communication, the key represents a shared secret between the two.There exist many symmetric encryption algorithms. A few of the well-known ones include AES, DES, Blowfish, and Skipjack. Please like this video and share it with your friends. Also please subscribe to my channel for more cool and awesome programming videos. Have a good day :) Link to source code: https://drive.google.com/open?id=0B8oS33RMDvLgZ2ZkS0V4R05Uam8
Views: 906 Software Dev
Public key cryptography - Diffie-Hellman Key Exchange (full version)
 
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The history behind public key cryptography & the Diffie-Hellman key exchange algorithm. We also have a video on RSA here: https://www.youtube.com/watch?v=wXB-V_Keiu8
Views: 641448 Art of the Problem
The Internet: Encryption & Public Keys
 
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Mia Epner, who works on security for a US national intelligence agency, explains how cryptography allows for the secure transfer of data online. This educational video explains 256 bit encryption, public and private keys, SSL & TLS and HTTPS. Learn more at http://code.org/ Help us translate into your language: http://code.org/translate/videos Stay in touch with us! • on Twitter https://twitter.com/codeorg • on Facebook https://www.facebook.com/Code.org • on Instagram https://instagram.com/codeorg • on Tumblr https://blog.code.org • on LinkedIn https://www.linkedin.com/company/code... • on Google+ https://google.com/+codeorg Help us caption & translate this video! https://amara.org/v/HGaS/
Views: 238140 Code.org
Why The Government Shouldn't Break WhatsApp
 
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Encryption backdoors - breaking WhatsApp and iMessage's security to let the government stop Bad Things - sounds like a reasonable idea. Here's why it isn't. A transcript of this video's available here: https://www.facebook.com/notes/tom-scott/why-the-government-shouldnt-break-whatsapp/1378434365572557/ CREDITS: Filmed at the Cambridge Centre for Computing History: http://www.computinghistory.org.uk/ Camera by Tomek: https://www.youtube.com/tomek Thanks to everyone who helped proofread my script! REFERENCES: WhatsApp's privacy protections questioned after terror attack: http://www.bbc.co.uk/news/technology-39405178 WhatsApp must be accessible to authorities, says Amber Rudd: https://www.theguardian.com/technology/2017/mar/26/intelligence-services-access-whatsapp-amber-rudd-westminster-attack-encrypted-messaging UK government renews calls for WhatsApp backdoor after London attack: https://www.theverge.com/2017/3/27/15070744/encryption-whatsapp-backdoor-uk-london-attacks Investigatory Powers Act: http://www.legislation.gov.uk/ukpga/2016/25/contents/enacted India is 'ready to use' Blackberry message intercept system: http://www.bbc.co.uk/news/technology-23265091 Revealed: how US and UK spy agencies defeat internet privacy and security: https://www.theguardian.com/world/2013/sep/05/nsa-gchq-encryption-codes-security Councils secretly spied on people walking dogs and feeding birds for five years: http://metro.co.uk/2016/12/26/councils-secretly-spied-on-people-walking-dogs-and-feeding-birds-for-five-years-6345051/ [This is basically a rephrase of https://www.theguardian.com/world/2016/dec/25/british-councils-used-investigatory-powers-ripa-to-secretly-spy-on-public with a better headline] Poole council spies on family over school claim: http://www.telegraph.co.uk/news/uknews/1584713/Poole-council-spies-on-family-over-school-claim.html Security services missed five opportunities to stop the Manchester bomber: http://www.telegraph.co.uk/news/2017/05/24/security-services-missed-five-opportunities-stop-manchester/ Reuters reference to "500 active investigations": http://www.reuters.com/article/us-britain-security-manchester-plots-idUSKBN18L1H0 AP: Across US, police officers abuse confidential databases: https://apnews.com/699236946e3140659fff8a2362e16f43/ap-across-us-police-officers-abuse-confidential-databases ME: I'm at http://tomscott.com on Twitter at http://twitter.com/tomscott on Facebook at http://facebook.com/tomscott and on Snapchat and Instagram as tomscottgo
Views: 1150848 Tom Scott
Encryption Algorithm Details | Converting Original data into unreadable format
 
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Encryption Algorithm Details | Converting Original data into unreadable format. Hello dosto, aaj ke is video me maine encryption and decryption ke bare me bataya hu aur aapko sunne ko milta hoga ki facbook ka lagorth ya google ka algorithm ye sab to ye sabhi jankari maine is video me share kiya hai. ------------------------ What about your opinions? tell me in comment. ------------------------ Follow us on Facebook-https://www.facebook.com/asinformer Follow us on Twitter -https://twitter.com/asinformer Follow us on Instagram-https://www.instagram.com/asinformer Subscribe us-https://www.youtube.com/asinformer Website - http://www.techaj.com/ ------------------------ Thanks for watching my Video , Keep liking and subscribe my channel About : AS Informer channel contains daily tech news, How to guide and review with lot of technology concept.
Views: 259 AS Informer
Image Encryption and Decryption using BlowFish Algorithm
 
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Image Encryption and Decryption using BlowFish Algorithm Java Project Phone : +91 7702177291, Email : [email protected]
Views: 1261 1000 Projects
Public Key Cryptography w/ JAVA  (tutorial 02) - RSA
 
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Website + download source code @ http://www.zaneacademy.com | also see Public Key Cryptography w/ JAVA (tutorial 04) - RSA Digital Signature @ https://youtu.be/5MxeckDiC18 00:10 demo prebuilt version of the application 03:15 how can a passive eavesdropper decrypt messages 04:20 how to compute inverse modulo of an integer using extended euclidean algorithm (EEA) 05:25 what is the Euler phi function 07:55 building a prime factorization crypto system 10:38 how to encrypt with RSA 11:00 how to decrypt with RSA 11:21 coding the application 14:12 code the server side 17:48 code the client side 18:56 calculate the private key d 19:12 calculate phi 19:26 generate the public key 22:30 handle receiving the public key of the other client 22:44 handle receiving messages from the other client 25:37 test run the application
Views: 994 zaneacademy
Final Year Projects | Visual Cryptography for Biometric Privacy
 
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Final Year Projects | Visual Cryptography for Biometric Privacy More Details: Visit http://clickmyproject.com/a-secure-erasure-codebased-cloud-storage-system-with-secure-data-forwarding-p-128.html Including Packages ======================= * Complete Source Code * Complete Documentation * Complete Presentation Slides * Flow Diagram * Database File * Screenshots * Execution Procedure * Readme File * Addons * Video Tutorials * Supporting Softwares Specialization ======================= * 24/7 Support * Ticketing System * Voice Conference * Video On Demand * * Remote Connectivity * * Code Customization ** * Document Customization ** * Live Chat Support * Toll Free Support * Call Us:+91 967-774-8277, +91 967-775-1577, +91 958-553-3547 Shop Now @ http://clickmyproject.com Get Discount @ https://goo.gl/lGybbe Chat Now @ http://goo.gl/snglrO Visit Our Channel: http://www.youtube.com/clickmyproject Mail Us: [email protected]
Views: 16176 Clickmyproject
Public Key Cryptography w/ JAVA  (tutorial 04) - RSA Digital Signature
 
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RSA Digital Signature JAVA Tutorial, Including Intro to Extended Euclidean Algorithm, Euler phi function, RSA generate keys, sign, and verify | Website + download source code @ http://www.zaneacademy.com | Public Key Cryptography w/ JAVA (tutorial 02) - RSA @ https://youtu.be/mddJvoloGy0 00:08 demo prebuilt version of the application 06:00 what is message confidentiality 06:18 what is message autheticity 06:38 what is message integrity 07:10 RSA digital signature 08:18 what is the Extended Euclidean Algorithm 08:56 what is the Euler Phi function 12:10 how to encrypt & decrypt with RSA 12:20 How to sign & verify with RSA 13:16 code the application 30:22 test run the application
Views: 425 zaneacademy
From Idea to Impact, the Crypto Story:  What's Next?
 
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IACR Distinguished Lecture by Shafi Goldwasser, presented at Crypto 2018.
Views: 2435 TheIACR
22. Cryptography: Encryption
 
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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Srinivas Devadas In this lecture, Professor Devadas continues with cryptography, introducing encryption methods. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 17991 MIT OpenCourseWare
Symmetric vs Asymmetric ( public key )  Cryptography
 
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Lesson 2 of cryptography series (to see all video check cryptography playlist - link given below). cryptography playlist : https://www.youtube.com/watch?v=_Yw7QWbk9Vs&list=PLf8bMP4RWebLVGpUnhji9Olkj1jdXfzFd Subscribe to our new youtube channel also : https://www.youtube.com/channel/UCNx1Gkyy9LfOxDMbcOKuV4g symmetric vs asymmetric ( public key ) cryptography symmetric key vs assymetric key encryption advantages of symmetric key cryptography advantages of assymetric cryptography concept of digital signatures safe and secure communication between systems encrypted communication between systems like us on facebook : https://www.facebook.com/guidetohacking/ #symmetric #asymmetric #public #key #cryptography #encryption
Public Key Cryptography - Max Krohn, Keybase [Code Driven by FirstMark]
 
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Code Driven NYC is a community organized by FirstMark that brings together leading developers from across the tech ecosystem to learn, get inspired, and have fun. Join the group at http://www.meetup.com/Code-Driven-NYC/ or find out more at http://codedrivennyc.com/.
Views: 576 Code Driven NYC
Homomorphic Encryption part 1
 
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Give this video a BIG THUMBS UP if it helped! Share this Video: https://youtu.be/NBO7t_NVvCc Subscribe To Our Channel and Get More Great videos https://www.youtube.com/channel/UCB-r... Here is a Metaphor video that explains this concept in easy way. Hope you will like it!!! What is Homomorphic Encryption and why I should care? THE PROBLEM WITH encrypting data is that sooner or later, you have to decrypt it as soon as you want to actually do something with those files—anything from editing a word document or querying a database of financial data—you have to unlock the data and leave it vulnerable. Homomorphic encryption, a still-mostly-theoretical advancement in the science of keeping secrets, could change that. For, example suppose Sara wants to add 1,2 but she doesn't know about how to add numbers. she asked john to add the numbers, but she doesn't trust john ,so she Encrypt the numbers (1,2) into another numbers 33,54 and sends these numbers to john. Jhon ,who only has access to the Encrypted data set,finds the sum of 33+45 and returns the answer 87 to Sara. Sara decrypts the Johns reply and finds the answer 3. So Homomorphic Encryption is a form of Encryption where you can perform operations on to encrypted text and get the encrypted result, which when decrypted would be same as you would get if the operation was performed on the decrypted text in the first place. Like performing addition of enc(2) and enc(3) would give you enc(2+3),which when decrypted would give you answer as 5 The way we understand The underlying idea , it is: Sara to be able to send encrypted data out,john to have certain code operate on this encrypted data and have the end result sent back to Sara, in a way that: it allows Sara to decrypt the end result,and does not allow anyone else to understand what is it about.
Security goals and mechanism | CSS series #2
 
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Take the Full Course of Cryptography and Network Security What we Provide 1) 20 Videos (Index is given down) + More Update will be Coming Before final exams 2)Hand made Notes with problems for your to practice 3)Strategy to Score Good Marks in Cryptography and Network Scurity To buy the course click https://goo.gl/mpbaK3 if you have any query email us at [email protected] Sample Notes : https://goo.gl/Ze1FpX or Fill the form we will contact you https://goo.gl/forms/2SO5NAhqFnjOiWvi2 Cryptography and System Security Index Lecture 1 Introduction to Cryptography and Security System Lecture 2 Security Goals and Mechanism Lecture 3 Symmetric Cipher Lecture 4 Substitution Cipher Lecture 5 Transposition Cipher Lecture 6 Stream and Block Cipher Lecture 7 Mono Alphabetic Cipher Lecture 8 Poly Alphabetic Cipher Lecture 9 Diffie Hellman Lecture 10 RSA Algorithm with Solved Example Lecture 11 IDEA Algorithm Full Working Lecture 12 SHA-1 Algorithm Full Working Lecture 13 Blowfish Algorithm Full working Lecture 14 DES Algorithm Full Working Lecture 15 Confusion and Diffusion Lecture 16 AES Algorithm Full working Lecture 17 Kerberos Lecture 18 Malicious Software ( Virus and worms ) Lecture 19 DOS and DDOS Attack Lecture 20 Digital Signature Full working Explained More videos Coming Soon.
Views: 77502 Last moment tuitions
Destroy All Crypto -- Nick Gonella
 
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White Hat CTF Master Nick Gonella gives a high-level mathematical look at Quantum Cryptography. Nick starts with the idea of using Asymmetric Encryption to solve the codebook problem of Symmetric Encryption. Nick also dives into Quantum concepts like superposition of states, duality, and the issues that RSA presents when confronted with Shor's algorithm and techniques from Number Theory. Watch Nick's talk to see how the mathematics surrounding this topic surpasses the computational capabilities of current computers. What is Elliptic Curve Cryptography? See Nick's talk on ECC: https://www.youtube.com/watch?v=FyrNkMDL120
Views: 753 White Hat Cal Poly