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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: 190086 Sundeep Saradhi Kanthety
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: 41364 Last moment tuitions
DES Introduction, General Structure, DES Function, DES Key Generation, DES Rounds - Hindi
 
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DES Introduction, General Structure, DES Function, DES Key Generation, DES Rounds - Hindi Data Encryption Standard(DES) Lectures in Hindi #DES Computer Network Security(CNS) Lectures – Internet Security
DES Key Creation - شرح بالعربي
 
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شرح كامل لطريقة عمل المفتاح لشيفرة DES - سيف بدران Information Security and Privacy - DES (Data Encryption Standard) Block Cipher Key Creation / Generation Explained with Example. Fiestel Structure Ciphers - Block Ciphers - DES Done By: Saif Badran http://www.facebook.com/saif.badran iTeam Academic Group - JU
Views: 84946 iAcademy
DES Data Encryption Standard Block diagram and working principle of DES in cryptography in [Hindi]
 
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Please Fill the form - https://docs.google.com/forms/d/1kOxvqvz1IvBMHJ3UeLecLDuK7ePKjHAvHaRcxduHKEE/edit ====================================================== 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 ======================================================
Information & Network Security Lecture -- DES simple Explanation (Eng-Hindi)
 
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-~-~~-~~~-~~-~- Please watch: "PL vs FOL | Artificial Intelligence | (Eng-Hindi) | #3" https://www.youtube.com/watch?v=GS3HKR6CV8E -~-~~-~~~-~~-~-
Views: 102963 Well Academy
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: 318993 Last moment tuitions
Introduction to Cryptography and system security | CSS series #1
 
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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: 136392 Last moment tuitions
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: 497421 itfreetraining
Cryptography basics: What is Encryption and Decryption
 
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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: 108709 Skill Gurukul
C# encrypting and decrypting using AES CBC, safe storing the encrypted data
 
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In this tutorial i'm going to show you how to encrypt, decrypt data using AES(Advanced Encryption Standard), and storing the encrypted data in safe place. Source code: https://drive.google.com/file/d/0BxW01l6w6JYfd1pTZVBjaWxhWEU/view?usp=sharing
Views: 58955 Dawisko1
C# Tutorial 49: Encrypt data from simple string in C#
 
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visual C# Adding AES encryption to C# application Forms Application encryption encrypt- decrypt with AES using C# Forms Application Advanced Encryption Standard Rijndael cipher Forms Application C# - Simple AES encryption using Visual C# cryptographic encrypt my 128 bit string using AES encryption cryptography C#
Views: 50059 ProgrammingKnowledge
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: 116439 Sundeep Saradhi Kanthety
NETWORK SECURITY - FEISTEL STRUCTURE
 
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FEISTEL STRUCTURE Most of the block ciphers follows the Feistel Structure. Plain text is processed in terms of blocks Plain text is divided into two equal halves Plain text is processed in number of rounds Sub Keys are generated for each round.
Data Encryption Standard (DES) properties. Cryptography and network Security in hindi
 
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Please Fill the form - https://docs.google.com/forms/d/1kOxvqvz1IvBMHJ3UeLecLDuK7ePKjHAvHaRcxduHKEE/edit ====================================================== 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 ======================================================
NETWORK SECURITY - RSA ALGORITHM
 
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RSA Algorithm is the example for Public Key Encryption algorithm. Here we are supposed to find two keys 1) Public Key which is used at encryption 2) Private Key which is used at decryption step 1: Select two large Primes P , Q Step 2: Calculate n=P*Q & O(n) = (P-1)*(Q-1) Step 3: Assume e and d (Public and Private Key). Step 4: Encrypt the Plain Text using Public Key e. Step 5: Decrypt the Cipher Text using Private Key d.
Views: 103022 Sundeep Saradhi Kanthety
5. Simplified Data Encryption Standard (SDES) | Simplified DES | With an Example
 
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Simplified Data Encryption Standard (SDES) | Simplified DES | With an Example
Views: 28107 Pritesh Prajapati
NETWORK SECURITY - SUBSTITUTION TECHNIQUES
 
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Substitution Techniques Here the Plain Text Letters are replaced with Cipher Text Characters 1) Caesar Cipher 2) Play Fair Cipher
VB NET - How to create Encrypt & Decrypt with password
 
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Creating Encrypt and Decrypt application Source Code: http://bit.ly/2tcRaDt Donate: https://youtube.streamlabs.com/UCg1deiuFrFQ-jVRwlGgTAvw#/ Share your links over the internet and Get PAID Join on http://join-shortest.com/ref/995addccce This video teach how to create Encrypt and Decrypt application to convert your text in unknown language with password. Website: http://www.codinger.pe.hu
Views: 7067 Codinger
DES -- The Algorithm
 
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DES -- Data Encryption Standard -- has been the workhorse of modern cryptography for many decades. It has never been compromised mathematically (not in the open literature, at least), yet, its design notes were never made public either. Many who use it are unaware of how it works. Here we open the DES box and find inside a repetition of sub-boxes in which very simple primitives are at work: substitution, transposition, split, concatenation, and bit-wise operation. DES inside teaches us that complexity is comprised of a lot of simplicity.
Views: 146059 Gideon Samid
Information & Network Security Lecture --  AES (Eng-Hindi)
 
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-~-~~-~~~-~~-~- Please watch: "PL vs FOL | Artificial Intelligence | (Eng-Hindi) | #3" https://www.youtube.com/watch?v=GS3HKR6CV8E -~-~~-~~~-~~-~-
Views: 106976 Well Academy
NETWORK SECURITY - OVERVIEW OF CRYPTOGRAPHIC ALGORITHMS
 
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CRYPTOGRAPHIC ALGORITHMS 1.ENCRYPTION ALGORITHMS 2.AUTHENTICATION ALGORITHMS 3.DIGITAL SIGNATURE ALGORITHMS.
Python AES Encryption/Decryption using PyCrypto Tutorial
 
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In this tutorial, we will learn Encryption/Decryption for AES CBC mode using PyCrypto. All links for source code, text based tutorial and further reading material will be in the description below. Detailed Text Based Tutorial http://www.letscodepro.com/encryption-in-python-using-pycrypto/ Gihub Source Code Link https://github.com/the-javapocalypse/Python-File-Encryptor Further Reading Material http://searchsecurity.techtarget.com/definition/cipher https://defuse.ca/cbcmodeiv.htm https://www.di-mgt.com.au/cryptopad.html http://www.cryptofails.com/post/70059609995/crypto-noobs-1-initialization-vectors Please Subscribe! And like. And comment. That's what keeps me going. Follow Me Facebook: https://www.facebook.com/javapocalypse Instagram: https://www.instagram.com/javapocalypse
Views: 23549 Javapocalypse
RSA Algorithm in Cryptography and Network security in Hindi.
 
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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/ ====================================================== 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 ======================================================
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: 35562 Sylvain Saurel
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: 105076 ProgrammingKnowledge
AES: Advanced Encryption Standard - a Conceptual Review
 
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AES has swept away old faithful DES, and is now the workhorse of business and government cryptography. Our entire civil order relies on its integrity. Here we explain how it works, and discover how a string of simple crypto primitives combine to such a robust cipher for which no mathematical compromise was ever published.
Views: 125609 Gideon Samid
Knapsack Problem In Cryptography | Knapsack Public Key Encyption
 
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In this video you will learn how to solve knapsack problem in cryptography .. encrytion and decryption of any letter using ASCII value and convert them into binary .. which will make hard of any intruder to decrypt the message Please subscribe and like video . Thanks Visit Our Channel :- https://www.youtube.com/channel/UCxik... In this lecture we have taught about Knapsack Public Key Cryptography and how to solve it with example. Follow Smit Kadvani on :- Facebook :- https://www.facebook.com/smit.kadvani Instagram :- https://www.instagram.com/the_smit0507 Follow Dhruvan Tanna on :- Facebook :- https://www.facebook.com/dhruvan.tanna1 Instagram :- https://www.instagram.com/dhru1_tanna Follow Keyur Thakkar on :- Facebook :- https://www.facebook.com/keyur.thakka... Instagram :- https://www.instagram.com/keyur_1982 Snapchat :- keyur1610 Follow Ankit Soni on:- Instagram :- https://www.instagram.com/ankit_soni1511
Views: 12112 Quick Trixx
Java Tutorial - How to encrypt and decrypt file using DES algorithm
 
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Java tutorial on how to encrypt and decrypt files using DES algorithm implementation in Java programming language
Views: 9483 Zoran Davidović
Lecture 8: Advanced Encryption Standard (AES) by Christof Paar
 
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For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com. The AES book chapter for this video is also available at the web site (click Sample Chapter).
KnapSack Encryption Algorithm in Hindi - Types of Keys, Solved Example
 
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KnapSack Encryption Algorithm in Hindi - Types of Keys, Solved Example #KnapSack Cryptosystem Computer Network Security(CNS) Lectures – Internet Security
Network Security - Use Crypto API to Encrypt and Decrypt
 
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Fundamentals of Computer Network Security This specialization in intended for IT professionals, computer programmers, managers, IT security professionals who like to move up ladder, who are seeking to develop network system security skills. Through four courses, we will cover the Design and Analyze Secure Networked Systems, Develop Secure Programs with Basic Cryptography and Crypto API, Hacking and Patching Web Applications, Perform Penetration Testing, and Secure Networked Systems with Firewall and IDS, which will prepare you to perform tasks as Cyber Security Engineer, IT Security Analyst, and Cyber Security Analyst. course 2 Basic Cryptography and Programming with Crypto API: About this course: In this MOOC, we will learn the basic concepts and principles of cryptography, apply basic cryptoanalysis to decrypt messages encrypted with mono-alphabetic substitution cipher, and discuss the strongest encryption technique of the one-time-pad and related quantum key distribution systems. We will also learn the efficient symmetric key cryptography algorithms for encrypting data, discuss the DES and AES standards, study the criteria for selecting AES standard, present the block cipher operating modes and discuss how they can prevent and detect the block swapping attacks, and examine how to defend against replay attacks. We will learn the Diffie-Hellman Symmetric Key Exchange Protocol to generate a symmetric key for two parties to communicate over insecure channel. We will learn the modular arithmetic and the Euler Totient Theorem to appreciate the RSA Asymmetric Crypto Algorithm, and use OpenSSL utility to realize the basic operations of RSA Crypto Algorithm. Armed with these knowledge, we learn how to use PHP Crypto API to write secure programs for encrypting and decrypting documents and for signing and verify documents. We then apply these techniques to enhance the registration process of a web site which ensures the account created is actually requested by the owner of the email account. Develop Secure Programs with Crypto API In this module, we learn how to use Crypto API to write secure programs for encrypting and decrypting documents, and for signing and verify documents. We then apply the techniques to enhance the registration process of a web site which ensures the account created is actually belonging to the owner of the email account the request profile. Learning Objectives • Develop secure programs with Crypto API for encryption, authentication, and integrity checking • Enhance the registration process of the web site by using the crypto api • Create and utilize the Crypto API to sign and verify documents Subscribe at: https://www.coursera.org
Views: 217 intrigano
DES and Meet-in-the-Middle Attack (CSS322, L6, Y14)
 
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Security of DES; Double DES; Meet-in-the-middle attack on a double cipher. Course material via: http://sandilands.info/sgordon/teaching
Views: 6805 Steven Gordon
AES - 2 Advanced Encryption Standard Sub Byte, Shift Row, Mix Col cryptography [HINDI]
 
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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/ ====================================================== 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 ======================================================
aes tutorial, advanced encryption standard, fips 197
 
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https://8gwifi.org/CipherFunctions.jsp aes tutorial, cryptography advanced encryption standard Computer Security, Cryptography Advanced Encryption Standard AES,fips 197 The Advanced Encryption Standard (AES) specifies a FIPS-approved cryptographic algorithm that can be used to protect electronic data. The AES algorithm is a symmetric block cipher that can encrypt (encipher) and decrypt (decipher) information. Encryption converts data to an unintelligible form called ciphertext; decrypting the ciphertext converts the data back into its original form, called plaintext. The AES algorithm is capable of using cryptographic keys of 128, 192, and 256 bits to encrypt and decrypt data in blocks of 128 bits. aes encryption and decryption aes encryption example aes encryption tutorial aes encryption online aes algorithm, aes encryption explained, aes algorithm tutorial, aes encryption and decryption algorithm, aes encryption algorithm, aes algorithm lecture, aes algorithm example, aes cryptography, aes encryption and decryption algorithm aes Verschlüsselung und Entschlüsselung aes Verschlüsselungsbeispiel aes Verschlüsselungs-Tutorial aes Verschlüsselung online aes Algorithmus, aes Verschlüsselung erklärt, aes Algorithmus Tutorial, aes Verschlüsselungs- und Entschlüsselungsalgorithmus, aes Verschlüsselungsalgorithmus, aes Algorithmus Vorlesung, aes Algorithmus Beispiel, aes Kryptographie,
Views: 4531 Zariga Tongy
What is Encryption [Hindi]
 
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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: 24809 Technical Choro
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: 8857 Simple Snippets
Elgamal Encryption and Decryption Algorithm | Elgamal Cryptosysterm With Solved Example
 
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This video explains how the elgama cryptosystem encryption and decryption is done 😎😎 Visit Our Channel :- https://www.youtube.com/channel/UCxik... In this lecture we have taught about Diffie Hellman Key Exchange and how it operates. Also a quick overview of AES and the basics of encryption. Follow Smit Kadvani on :- Facebook :- https://www.facebook.com/smit.kadvani Instagram :- https://www.instagram.com/the_smit0507 Follow Dhruvan Tanna on :- Facebook :- https://www.facebook.com/dhruvan.tanna1 Instagram :- https://www.instagram.com/dhru1_tanna Follow Keyur Thakkar on :- Facebook :- https://www.facebook.com/keyur.thakka... Instagram :- https://www.instagram.com/keyur_1982 Snapchat :- keyur1610 Follow Ankit Soni on:- Instagram :- https://www.instagram.com/ankit_soni1511
Views: 35063 Quick Trixx
How To Make A Basic Encrypter In Visual Basic 2008
 
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Visual Basic 2008 m- Encrypter. just a simple tutorial on how to make a basic encrypter in visual basic NET. Download source : http://www.mediafire.com/environmentalnerd (CALLED BASIC ENCRYPTER) Or copy and Paste: 'TextBox1.Text = Password 'Textbox2.Text = String Public Class Form1 Dim DES As New System.Security.Cryptography.TripleDESCryptoServiceProvider Dim Hash As New System.Security.Cryptography.MD5CryptoServiceProvider Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Try DES.Key = Hash.ComputeHash(System.Text.ASCIIEncoding.ASCII.GetBytes(TextBox1.Text)) DES.Mode = Security.Cryptography.CipherMode.ECB Dim DESEncrypter As System.Security.Cryptography.ICryptoTransform = DES.CreateEncryptor Dim Buffer As Byte() = System.Text.ASCIIEncoding.ASCII.GetBytes(TextBox2.Text) TextBox2.Text = Convert.ToBase64String(DESEncrypter.TransformFinalBlock(Buffer, 0, Buffer.Length)) Catch ex As Exception MessageBox.Show("The following error(s) have occurred: " & ex.Message, Me.Text, MessageBoxButtons.OK, MessageBoxIcon.Error) End Try End Sub Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click Try DES.Key = Hash.ComputeHash(System.Text.ASCIIEncoding.ASCII.GetBytes(TextBox1.Text)) DES.Mode = Security.Cryptography.CipherMode.ECB Dim DESDecrypter As System.Security.Cryptography.ICryptoTransform = DES.CreateDecryptor Dim Buffer As Byte() = Convert.FromBase64String(TextBox2.Text) TextBox2.Text = System.Text.ASCIIEncoding.ASCII.GetString(DESDecrypter.TransformFinalBlock(Buffer, 0, Buffer.Length)) Catch ex As Exception MessageBox.Show("The following error(s) have occurred: " & ex.Message, Me.Text, MessageBoxButtons.OK, MessageBoxIcon.Error) End Try End Sub End Class
Views: 22475 environmentalnerd53
NETWORK SECURITY- BLOWFISH ALGORITHM
 
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This video covers Blowfish algorithm along with key expansion and steps.
ElGamal Cryptography in Hindi - Key Generation, Encryption, Decryption Step
 
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ElGamal Cryptography in Hindi - Key Generation, Encryption and Decryption Steps with Solved Example Computer Network Security(CNS) Lectures – Internet Security
RSA Algorithm in Network Security With Example | Question on RSA Asymmetric Key Cryptography
 
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► Link for Cryptography: https://www.youtube.com/watch?v=trHox1bN5es ► Link for Symmetric Key in Cryptography: https://www.youtube.com/watch?v=6AmmQiOWoXM&t=47s ► Link for Asymmetric key in Cryptography: https://www.youtube.com/watch?v=xw19eT5thIE&t=75s ► Link for Computer Networks Playlist: https://www.youtube.com/playlist?list=PLxCzCOWd7aiGFBD2-2joCpWOLUrDLvVV_ ► Link for Artificial Intelligence Playlist: https://www.youtube.com/playlist?list=PLxCzCOWd7aiHGhOHV-nwb0HR5US5GFKFI ► Link for Operating System Playlist- https://www.youtube.com/playlist?list=PLxCzCOWd7aiGz9donHRrE9I3Mwn6XdP8p ► Link for Database Management System Playlist- https://www.youtube.com/playlist?list=PLxCzCOWd7aiFAN6I8CuViBuCdJgiOkT2Y ► Link for Graph Theory Playlist- https://www.youtube.com/playlist?list=PLxCzCOWd7aiG0M5FqjyoqB20Edk0tyzVt ► Last Minutes Preparation for UGC NET and GATE Playlist- https://www.youtube.com/playlist?list=PLxCzCOWd7aiE4LQMkIhAe9amWX_SPNMiZ ► Analysis of NTA UGC NET Dec 2018 CS : https://www.youtube.com/watch?v=oKJ1MsLvp1k ► Analysis of NTA UGC NET June-2018 : https://www.youtube.com/watch?v=uTBdBOB7AME ► NTA UGC-NET Data Structure Paper analysis and previous year Questions Explanation: https://www.youtube.com/watch?v=PZs7az8cxPQ&t=8s ► NTA UGC NET Algorithm & Data Structure Previous year Questions Explanation: https://www.youtube.com/watch?v=akVtp2B9AnI&t=14s ► NTA UGC-NET C/C++ Paper analysis and previous year Questions Explanation https://www.youtube.com/watch?v=bH7uT7lBMGg&t=50s ►MUST WATCH Before you start preparing for any competitive exam: https://www.youtube.com/watch?v=KycO72Zgr0c&t=2s ► Schedule for NTA UGC NET Computer Science: https://www.youtube.com/watch?v=_-UOsa2bkzQ&t=2s ► New Syllabus of NTA UGC NET Computer Science: https://www.youtube.com/watch?v=tBRgI-oobOk&t=9s ► Previous year Questions Explanation of GATE, UGC-NET & PSUs: https://www.youtube.com/playlist?list=PLxCzCOWd7aiG9x0zDA4heJ3TWLqTE3gE4 ► Link for UGC-NET Mock Test Series Playlist: https://www.youtube.com/playlist?list=PLxCzCOWd7aiEJtXNeIfxa5dqm6SnFJ9Oj ------------------------------------------------------------------------------------------------- Our Social Links: ► Subscribe to our YouTube channel: https://www.youtube.com/gatesmashers ► Like Our page on Facebook - https://www.facebook.com/gatesmashers/ ► Whatsapp: In order to receives updates about UGC NET Computer Science , Whatsapp your name to 9876444511. Save our number in your phonebook to receive updates on Whatsapp. ► For any Query and Suggestions- [email protected] #RSA#Cryptography#NetworkSecurity
Views: 5400 Gate Smashers
Python Encryption Tutorial with PyCrypto
 
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Sentdex.com Facebook.com/sentdex Twitter.com/sentdex How to use python to encrypt sensitive information, and later decrypt it, using PyCrypto! PyCrypto: https://www.dlitz.net/software/pycrypto/ The Code: http://sentdex.com/sentiment-analysisbig-data-and-python-tutorials/encryption-and-decryption-in-python-code-example-with-explanation/
Views: 88875 sentdex
Cryptography: Crash Course Computer Science #33
 
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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: 232535 CrashCourse
NETWORK SECURITY - TYPES OF AUTHENTICATION (Message Encryption, MAC, Hash Functions)
 
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Three types of Authentications 1. Message Encryption 2. Message Authentication Code 3. Hash Functions.
Block Cipher Standards (DES)
 
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Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 30749 nptelhrd
aes tutorial, cryptography Advanced Encryption Standard AES Tutorial,fips 197
 
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https://8gwifi.org/CipherFunctions.jsp Reference book: http://leanpub.com/crypto Computer Security, Cryptography Advanced Encryption Standard AES,fips 197 The Advanced Encryption Standard (AES) specifies a FIPS-approved cryptographic algorithm that can be used to protect electronic data. The AES algorithm is a symmetric block cipher that can encrypt (encipher) and decrypt (decipher) information. Encryption converts data to an unintelligible form called ciphertext; decrypting the ciphertext converts the data back into its original form, called plaintext. The AES algorithm is capable of using cryptographic keys of 128, 192, and 256 bits to encrypt and decrypt data in blocks of 128 bits. aes encryption and decryption aes encryption example aes encryption tutorial aes encryption online aes algorithm, aes encryption explained, aes algorithm tutorial, aes encryption and decryption algorithm, aes encryption algorithm, aes algorithm lecture, aes algorithm example, aes cryptography, aes encryption and decryption algorithm
Views: 156981 Zariga Tongy
Simple DES implementation
 
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Simple Des implementation with encrypt, decrypt and crack ability. Recommended view 720p If interested, visit my site: http://www.fetinidis.info Υλοποίηση του Simple Des με δυνατότητα κρυπτογράφησης, αποκρυπτογράφησης και σπασίματος. Επιθυμητή ανάλυση 720p
Views: 2089 Anastasios Fetinidis
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: 29835 Amarnath R