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Symmetric Key and Public Key Encryption
 
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Modern day encryption is performed in two different ways. Check out http://YouTube.com/ITFreeTraining or http://itfreetraining.com for more of our always free training videos. Using the same key or using a pair of keys called the public and private keys. This video looks at how these systems work and how they can be used together to perform encryption. Download the PDF handout http://itfreetraining.com/Handouts/Ce... Encryption Types Encryption is the process of scrambling data so it cannot be read without a decryption key. Encryption prevents data being read by a 3rd party if it is intercepted by a 3rd party. The two encryption methods that are used today are symmetric and public key encryption. Symmetric Key Symmetric key encryption uses the same key to encrypt data as decrypt data. This is generally quite fast when compared with public key encryption. In order to protect the data, the key needs to be secured. If a 3rd party was able to gain access to the key, they could decrypt any data that was encrypt with that data. For this reason, a secure channel is required to transfer the key if you need to transfer data between two points. For example, if you encrypted data on a CD and mail it to another party, the key must also be transferred to the second party so that they can decrypt the data. This is often done using e-mail or the telephone. In a lot of cases, sending the data using one method and the key using another method is enough to protect the data as an attacker would need to get both in order to decrypt the data. Public Key Encryption This method of encryption uses two keys. One key is used to encrypt data and the other key is used to decrypt data. The advantage of this is that the public key can be downloaded by anyone. Anyone with the public key can encrypt data that can only be decrypted using a private key. This means the public key does not need to be secured. The private key does need to be keep in a safe place. The advantage of using such a system is the private key is not required by the other party to perform encryption. Since the private key does not need to be transferred to the second party there is no risk of the private key being intercepted by a 3rd party. Public Key encryption is slower when compared with symmetric key so it is not always suitable for every application. The math used is complex but to put it simply it uses the modulus or remainder operator. For example, if you wanted to solve X mod 5 = 2, the possible solutions would be 2, 7, 12 and so on. The private key provides additional information which allows the problem to be solved easily. The math is more complex and uses much larger numbers than this but basically public and private key encryption rely on the modulus operator to work. Combing The Two There are two reasons you want to combine the two. The first is that often communication will be broken into two steps. Key exchange and data exchange. For key exchange, to protect the key used in data exchange it is often encrypted using public key encryption. Although slower than symmetric key encryption, this method ensures the key cannot accessed by a 3rd party while being transferred. Since the key has been transferred using a secure channel, a symmetric key can be used for data exchange. In some cases, data exchange may be done using public key encryption. If this is the case, often the data exchange will be done using a small key size to reduce the processing time. The second reason that both may be used is when a symmetric key is used and the key needs to be provided to multiple users. For example, if you are using encryption file system (EFS) this allows multiple users to access the same file, which includes recovery users. In order to make this possible, multiple copies of the same key are stored in the file and protected from being read by encrypting it with the public key of each user that requires access. References "Public-key cryptography" http://en.wikipedia.org/wiki/Public-k... "Encryption" http://en.wikipedia.org/wiki/Encryption
Views: 488020 itfreetraining
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: 192335 PBS Infinite Series
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
Views: 350 zaneacademy
Extended Euclidean Algorithm and Inverse Modulo Tutorial
 
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Using EA and EEA to solve inverse mod.
Views: 403340 Emily Jane
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: 33803 Sylvain Saurel
Hashing Encryption Decryption Digital Signature Signing Verification Openssl Pkcs7
 
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Reach me at linked in: www.linkedin.com/in/sameer-pasha-7aba6393 This video briefs on encryption, decryption and generating as well as verifying digital signatures. ============= NOTE: Replace GREATER-ARROW with angle-bracket below, as angle-brackets are not allowed in description. Commands used: Generate hash: md5sum Plaintext.txt gcc hash_func.c -lcrypto Encrypt a file: openssl enc -aes-128-cbc -in Plaintext.txt -K ABCDEF12345 -iv ABCDEF GREATER-ARROW Cipher.txt Decrypt a file: openssl enc -d -aes-128-cbc -in Cipher.txt -K ABCDEF12345 -iv ABCDEF Generate a detached signature: openssl smime -binary -sign -in Plaintext.txt -signer PK.crt -inkey PK.key -outform pem -out file.p7b Dump signature contents: openssl asn1parse -in file.p7b -dump -i ==== Generating digital-signature: sha1sum Plaintext.txt | cut -d ' ' -f 1 GREATER-ARROW hash openssl enc -aes-128-cbc -in hash -K ABCDEF12345 -iv ABCDEF GREATER-ARROW Signature.bin Verifying digital-signature: sha1sum Plaintext.txt | cut -d ' ' -f 1 GREATER-ARROW hash_1 openssl enc -d -aes-128-cbc -in Signature.bin -K ABCDEF12345 -iv ABCDEF GREATER-ARROW hash_2 cat hash_1 cat hash_2
Views: 2940 Sameer Pasha
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: 817330 SciShow
Aloaha secure SMS with RSA Encryption
 
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Do more with Aloaha secure SMS! Many useful SMS features make this app a powerful stock SMS replacement. Secure SMS even includes RSA transport encryption! Aloaha SMS provides an easy to use interface for text messaging along with some great features like copy and paste, filter, export2sd, etc. Try it! It's Free. *** Features *** - RSA encryption of SMS - RSA decryption of SMS - Transport encryption! - Filter and sort SMS based on various criteria such as sender, date, content, etc. - Export SMS to SD Card - Share SMS via various methods - SMS clipboard editor - Easy reading and composing of SMS messages - Mail Archive Viewer included (via settings dialog) - Small Footprint Very active development so please do not wait to give us feedback for SMS Aloaha! We have a test mobile online: Just SMS your public key to +356 (79) 612 347 and we will answer by encrypted SMS!
Views: 462 Aloaha Limited
Digital Signatures
 
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This video is part of the Udacity course "Intro to Information Security". Watch the full course at https://www.udacity.com/course/ud459
Views: 59270 Udacity
Hacking at Quantum Speed with Shor's Algorithm | 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 Classical computers struggle to crack modern encryption. But quantum computers using Shor’s Algorithm make short work of RSA cryptography. Find out how. Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode How to Break Cryptography https://www.youtube.com/watch?v=12Q3Mrh03Gk The Mathematics Behind Quantum Computers https://www.youtube.com/watch?v=IrbJYsep45E Additional Resources: Scott Aaronson's Blog (Great Intro to Shor's Alg.):: http://www.scottaaronson.com/blog/?p=208 Shor's Original Paper:: https://arxiv.org/abs/quant-ph/9508027v2 Lectures on Shor's Algorithm:: https://arxiv.org/pdf/quant-ph/0010034.pdf Decrypting secure messages often involves attempting to find the factors that make up extremely large numbers. This process is too time consuming for classical computers but Shor’s Algorithm shows us how Quantum Computers can greatly expedite the process. Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Made by Kornhaber Brown (www.kornhaberbrown.com) Thanks to Spiros Michalakis for helpful discussions and feedback. Comments answered by Kelsey: Neon Bull https://www.youtube.com/watch?v=12Q3Mrh03Gk&lc=z135uxf5cxenutmxj04cc3swkvm4tpcrxik Bhargav R https://www.youtube.com/watch?v=12Q3Mrh03Gk&lc=z13qjjioozbjdrqyz04cevdrtu3ti3y5sq40k BobC https://www.youtube.com/watch?v=12Q3Mrh03Gk&lc=z12pjpzastylzz2qx04cjtc5jrq2y3yhmlk0k
Views: 182595 PBS Infinite Series
RSA Digital Signature: SIGN in Python pyCrypto & verify in JavaScript jsrsasign
 
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In most cases, we want to interact our python server (Flask/Django) with multiple clients over the web that uses JavaScript. This is a demonstration of how can you generate a signature in python and verity that signature in JavaScript and Vice Versa. jsrsasign library test console: https://kjur.github.io/jsrsasign/sample/sample-rsasign.html
Views: 3641 Anum Sheraz
How to calculate a power b modulus n i.e (a ^ b mod n)
 
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Learn How to calculate a power b modulus n i.e (a ^ b mod n) using Fast exponential modular arithmetic technique!! Follow us on : http://aptitudefordummies.wordpress.com Follow us in Fb : https://www.facebook.com/aptitudedummies Google+ : [email protected]
Views: 96122 Aptitude for dummies
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: 633994 Art of the Problem
Cryptography For Beginners
 
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Cryptography is a complex and confusing subject. In this talk you will learn about the core components of cryptography used in software development: securing data with encryption, ensuring data integrity with hashes and digital signatures, and protecting passwords with key derivation functions. While learning how to use these components, you will also learn the best practices that drive strong cryptography. This talk won’t make you a cryptography expert but it will give you the knowledge necessary to use cryptography properly. No prior knowledge of cryptography is required for this presentation. EVENT: Dutch PHP Conference in 2018 SPEAKER: Adam Englander PERMISSIONS: Original video was published with the Creative Commons Attribution license (reuse allowed). CREDITS: Original video source: https://www.youtube.com/watch?v=KcjJ19geKmA
Views: 40054 Coding Tech
Stanford Seminar - The Evolution of Public Key Cryptography
 
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EE380: Computer Systems Colloquium Seminar The Evolution of Public Key Cryptography Speaker: Martin Hellman, Stanford EE (Emeritus) While public key cryptography is seen as revolutionary, after this talk you might wonder why it took Whit Diffie, Ralph Merkle and Hellman so long to discover it. This talk also highlights the contributions of some unsung (or "under-sung") heroes: Ralph Merkle, John Gill, Stephen Pohlig, Richard Schroeppel, Loren Kohnfelder, and researchers at GCHQ (Ellis, Cocks, and Williamson). Resources and Reading Materials M. E. Hellman, Cybersecurity, Nuclear Security, Alan Turing, and Illogical Logic (http://www-ee.stanford.edu/ %7Ehellman/publications/77.pdf), Communications of the ACM, Vol. 60, No. 12, pp. 52-59, December 2017. This is a written version of Martin Hellman's ACM Turing Lecture (https://www.youtube.com/watch?v=I132wSwAI3o) and was accompanied by a short (6 minute) video (https://vimeo.com/241030842). Other materials and hard to find references can be found on Martin Hellman's Stanford website, http://www-ee.stanford.edu/~hellman/ . About the Speaker: Martin E. Hellman is Professor Emeritus of Electrical Engineering at Stanford University and is affiliated with the university's Center for International Security and Cooperation (CISAC). His recent technical work has focused on bringing a risk informed framework to a potential failure of nuclear deterrence and then using that approach to find surprising ways to reduce the risk. His earlier work included co- inventing public key cryptography, the technology that underlies the secure portion of the Internet. His many honors include election to the National Academy of Engineering and receiving (jointly with his colleague Whit Diffie) the million dollar ACM Turing Award, the top prize in computer science. His most recent project is a book, jointly written with his wife of fifty years, "A New Map for Relationships: Creating True Love at Home & Peace on the Planet," that provides a "unified field theory" of peace by illuminating the connections between nuclear war, conventional war, interpersonal war, and war within our own psyches. For more information about this seminar and its speaker, you can visit https://ee380.stanford.edu/Abstracts/180307.html Support for the Stanford Colloquium on Computer Systems Seminar Series provided by the Stanford Computer Forum. Colloquium on Computer Systems Seminar Series (EE380) presents the current research in design, implementation, analysis, and use of computer systems. Topics range from integrated circuits to operating systems and programming languages. It is free and open to the public, with new lectures each week. Learn more: http://bit.ly/WinYX5
Views: 2046 stanfordonline
Upload file with encryption and download file with decryption using asp.net c#.
 
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For Complete Step by Step Tutorial and source code visit : http://dotnetawesome.blogspot.com/2013/11/how-to-upload-file-with-encryption-and.html
Views: 30223 sourav mondal
End to End Encryption (E2EE) - Computerphile
 
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End to end encryption, government ministers are again talking about stopping it. What is it and why might that be a bad idea? Dr Mike Pound explains. Hololens: https://youtu.be/gp8UiYOw8Fc Blockchain: https://youtu.be/qcuc3rgwZAE 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. More at http://www.bradyharan.com
Views: 289107 Computerphile
File Encryption/Decryption using PHP
 
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This tutorial demonstrates encrypting/decrypting file using PHP. "Mcrypt" php extension has been used for this purpose in the tutorial. #Encryption #Decryptrion #PHP
Views: 3205 Lets Try This !
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: 8822 Zoran Davidović
How Encryption Keeps Your Data Safe
 
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Start protecting yourself on the web at https://NordVPN.com/SCISHOW or use code SCISHOW to save 75% off of a 3-year Virtual Private Network plan, plus 1 month free. Keeping our data safe and secure is necessary in today's world, but a lot of the encryption we depend on has been in development for thousands of years! Hosted by: Stefan Chin Head to https://scishowfinds.com/ for hand selected artifacts of the universe! ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Lazarus G, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- 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://book.itep.ru/depository/crypto/Cryptography_history.pdf https://www.sans.org/reading-room/whitepapers/vpns/history-encryption-730 http://cryptogramma.com/cryptogramma/How_it_works.html https://books.google.com/books?id=Zb2RBQAAQBAJ&lpg=PA14&ots=ycTpjodUS3&pg=PA14#v=onepage&f=false https://www.britannica.com/topic/transposition-cipher https://books.google.com/books?id=o3YbiVuTg70C&lpg=PP1&pg=PT29#v=onepage&q&f=false http://penelope.uchicago.edu/Thayer/E/Roman/Texts/Plutarch/Lives/Lysander*.html https://www.coursera.org/lecture/symmetric-crypto/product-cipher-d1DgA http://www.moserware.com/2009/09/stick-figure-guide-to-advanced.html https://www.youtube.com/watch?v=aH6h52aMGT8 https://dl.acm.org/citation.cfm?id=1824151 http://www.networkdls.com/Articles/tr-601.pdf ftp://ftp.rsasecurity.com/pub/pdfs/tr701.pdf https://link.springer.com/content/pdf/10.1007%2FBFb0040277.pdf http://cacr.uwaterloo.ca/hac/about/chap6.pdf https://www.youtube.com/watch?v=MsqqpO9R5Hc https://www.youtube.com/watch?v=GSIDS_lvRv4 https://www.digicert.com/TimeTravel/math.htm
Views: 93646 SciShow
Data Encryption Standard (DES)
 
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Referencias nombre del sitio: Ocw.bib.upct.es http://ocw.bib.upct.es/pluginfile.php/5307/mod_resource/content/1/TEMA_DES.pdf nombre del sitio: EcuRed https://www.ecured.cu/DES nombre del sitio: Tesis.ipn.mx http://tesis.ipn.mx/bitstream/handle/123456789/6239/IF2.45.pdf?sequence=1
Views: 45 youlvis jimenez
C Program to Encrypt and Decrypt A File
 
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Video tutorial that explains the C programs to encrypt and decrypt a file. You will learn to convert a text file into a coded form. After encrypting of a file, you will be explained how to decrypt it back to the original file. In this C programming video tutorial, you will learn how to encrypt a file, source code for encryption and decryption in c, and encryption using c. Step by step the entire program is explained with, data encryption, c program caesar cipher and c language caesar code along with data encryption & decryption program. From this video you will learn about, c program for encryption and decryption using caesar cipher, c program for encryption and decryption of string and source code for data encryption & decryption. By the end of this video tutorial you will have a clear understanding of, encryption decryption, caesar cipher program encryption decryption and caesar cipher program along with caesar cipher in c language. If you are looking for, caesar cipher in c code, encryption program in c and caesar cipher in c along with c programming cipher, then this video is for you. This video tutorial is made for beginners to understand caesar cipher c code, c programming caesar, c caesar cipher, ceasar cipher program in c and data encryption standard and cryptographic along with aes encryption, advanced encryption standard and c programming cezar and convert case too. For code of encrypting a file, use the following link: http://bmharwani.com/encryptfile.c For code of decrypting a file, use the following link: http://bmharwani.com/decryptfile.c For more videos on C Programming, visit: https://www.youtube.com/watch?v=zkrCGJIdcGk&t=2s&list=PLuDr_vb2LpAz7rD1blSh6b91-nQ4j9B3V&index=5 For notification of new videos, you can subscribe my channel: https://www.youtube.com/c/bintuharwani. To know more about me, visit, http://bmharwani.com
Views: 4201 Bintu Harwani
How to Encrypt & Decrypt Files or Folders Using Command Prompt
 
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Get certified after completion on of Certificate Authority (ADCS) Server 2016 Course: https://www.udemy.com/complete-certificate-authority-adcs-server-2016-course/ Learn more: http://vincenttechblog.com
Views: 74809 Vincent's Tech Blog
Encryption and Decryption of Data in C#.net Visual Studio 2013
 
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In this tutorial I will show you how you can use cryptostream and Rijandial Algorithm for encryption and decryption of data in C#.net programming. If you have any questions feel free to leave a comment. Thanks for watching :) -~-~~-~~~-~~-~- Please watch: "How to use android glide library to efficiently load images in your android application" https://www.youtube.com/watch?v=FOYdcq86NpU -~-~~-~~~-~~-~- keywords: md5 encryption c#.net sha1 encryption c#.net encryption using c#.net aes encryption c#.net url encryption c#.net blowfish encryption c#.net encryption c# asp.net encryption decryption c#.net encryption algorithms in c#.net encryption code in c#.net encryption c#.net md5 encryption c# asp.net c# net encryption and decryption c# .net aes encryption example c# net aes encryption c# .net asymmetric encryption c# .net des encryption c# .net data encryption c# .net encryption example c# .net file encryption encryption in c#.net encryption decryption in c#.net encryption method in c#.net encryption string in c#.net encryption class in c#.net encryption in asp.net c# pgp encryption in c#.net md5 encryption in c#.net symmetric key encryption c# .net asp net c# md5 encryption encryption of password in c#.net c# .net password encryption c# .net pgp encryption c# .net rsa encryption c# .net rijndael encryption rc4 encryption in c#.net asp.net c# rsa encryption c# .net simple encryption c# .net string encryption .net c# symmetric encryption xor encryption in c#.net aes 256 encryption c#.net c# aes encryption .net 2.0 c# .net 3des encryption c# .net 4.5 encryption encryption and decryption in c#.net decryption in c#.net decrypt md5 c#.net password encryption and decryption in c#.net aes encryption and decryption in c#.net md5 encryption and decryption in c#.net simple encryption and decryption in c#.net image encryption and decryption in c#.net file encryption and decryption in c#.net string encryption and decryption in c#.net encryption and decryption in c#.net decryption in c#.net decrypt md5 c#.net password encryption and decryption in c#.net aes encryption and decryption in c#.net md5 encryption and decryption in c#.net simple encryption and decryption in c#.net image encryption and decryption in c#.net file encryption and decryption in c#.net string encryption and decryption in c#.net encryption and decryption in c#.net decryption in c#.net decrypt md5 c#.net password encryption and decryption in c#.net aes encryption and decryption in c#.net md5 encryption and decryption in c#.net simple encryption and decryption in c#.net image encryption and decryption in c#.net file encryption and decryption in c#.net string encryption and decryption in c#.net encryption and decryption in c# asp.net encryption and decryption in c#.net aes encryption and decryption in c#.net md5 encryption and decryption in c#.net simple encryption and decryption in c#.net image encryption and decryption in c#.net file encryption and decryption in c#.net string encryption and decryption in c#.net data encryption and decryption in c#.net rsa encryption and decryption in c#.net data encryption and decryption in c#.net encryption and decryption in c#.net password encryption and decryption in c#.net aes encryption and decryption in c#.net md5 encryption and decryption in c#.net simple encryption and decryption in c#.net image encryption and decryption in c#.net file encryption and decryption in c#.net string encryption and decryption in c#.net data encryption and decryption in c#.net rsa encryption and decryption in c#.net decrypt aes - c# .net from openssl file encryption and decryption in c#.net xml file encryption and decryption in c#.net encryption and decryption in c#.net decryption in c#.net password encryption and decryption in c#.net aes encryption and decryption in c#.net md5 encryption and decryption in c#.net simple encryption and decryption in c#.net image encryption and decryption in c#.net file encryption and decryption in c#.net string encryption and decryption in c#.net data encryption and decryption in c#.net md5 encryption and decryption in c#.net md5 decryption in c#.net c# .net pgp decryption password encryption and decryption in c#.net rsa encryption and decryption in c#.net rc4 decryption in c#.net simple encryption and decryption in c#.net string encryption and decryption in c#.net xml file encryption and decryption in c#.net
Views: 21655 Software Dev
Elliptic Curve Digital Signature Algorithm (ECDSA) (Money Button Documentation Series)
 
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* Slides: https://www.dropbox.com/s/lghiehvjmkvdava/ecdsa.pdf?dl=0 We are covering all of the material a developer needs to know to be able to build applications on the Bitcoin SV (BSV) blockchain, with or without Money Button. This documentation assumes the viewer is a developer who knows how to build an app, but who doesn't yet know much about Bitcoin SV. * Money Button: https://www.moneybutton.com * Documentation (and more videos): https://docs.moneybutton.com * Blog: https://blog.moneybutton.com * Telegram group for help: https://t.me/moneybuttonhelp * ECDSA: https://docs.moneybutton.com/docs/bsv-ecdsa.html * Mnemonics (BIP39): https://docs.moneybutton.com/docs/bsv-mnemonic.html * Hierarchical Keys and Extended Private Keys and Extended Public Keys (BIP32): https://docs.moneybutton.com/docs/bsv-hd-private-key.html * Private Keys: https://www.youtube.com/watch?v=XPWZ0Sih59o * Public Keys: https://www.youtube.com/watch?v=wYpifoXE7H0 * Addresses: https://www.youtube.com/watch?v=a32dlV2xgIw
Views: 204 Money Button
How to Encrypt/Decrypt Notepad++ Files
 
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Thanks for watching, i hope you enjoyed the video tutorial. Notepad++: http://download.cnet.com/Notepad/3000-2352_4-10327521.html http://www.youtube.com/user/TechiesInCollege ---------------------------------------------- Main Channel: http://www.youtube.com/T3hTechi3s Website: th3techies.com ---------------------------------------------- Gaming Channel: http://www.youtube.com/Techiesgaming Techies Vlogs in College: http://www.youtube.com/user/TechiesInCollege
Views: 80362 Th3techi3s
What are Digital Signatures and How Do They Work?
 
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What is a Digital Signature? In this animation, we will explain how digital signatures work using cryptography. In some ways, digital signatures do what their names suggest: they provide validation in the same way signatures do, in digital form. 👩‍🎓👨‍🎓Learn blockchain fast at the Lisk Academy: https://lisk.io/academy Thanks for watching! Lisk makes it easy for developers to build and deploy blockchain applications in JavaScript. Learn about the leading platform for world-changing dapps at https://lisk.io/products. 👨‍💻👩‍💻 For developers: Documentation: https://lisk.io/documentation GitHub: https://github.com/LiskHQ Gitter: https://gitter.im/LiskHQ/lisk 🗞Read our latest news on the blog: https://blog.lisk.io/ 💼 Check our current job openings! https://angel.co/lisk 👨‍🚀 Meet the team: https://lisk.io/team 🔒 Manage your LSK in the official wallet: https://lisk.io/hub 🔎 View our blockchain explorer: https://explorer.lisk.io/ ⚙️ Get the all new Lisk Hub: https://lisk.io/hub/index.html#/ 🎥 For media inquiries, please email us at press [at] lisk [dot] io. 👫Join our community channels: Reddit: http://reddit.com/r/lisk Lisk.chat: https://lisk.chat/ Twitter: http://twitter.com/liskhq Telegram: https://t.me/Lisk_HQ Facebook: http://facebook.com/liskhq
Views: 5724 Lisk
Online privacy is a first amendment right and why encryption is NOT a munition
 
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Some people think privacy doesn't matter as long as you have nothing to hide. But online privacy is a form free speech. Despite government efforts, encryption is not a munition and source code is speech protected under the first amendment. If you like to protect yourself on the web and want to support my channel, sign up for NordVPN at https://nordvpn.org/thehatedone or use my coupon code 'thehatedone' at the checkout to save 66% on the 2-year plan! Bitcoin: 1C7UkndgpQqjTrUkk8pY1rRpmddwHaEEuf Dash Xm4Mc5gXhcpWXKN84c7YRD4GSb1fpKFmrc Litecoin LMhiVJdFhYPejMPJE7r9ooP3nm3DrX4eBT Ethereum 0x6F8bb890E122B9914989D861444Fa492B8520575 In the 1990s, the government fiercely attacked online privacy by classifying encryption software as a munition, and regulating it as biological weapons or firearms. Exporting encryption was heavily restricted, required a government license, and made its implementation on the Internet virtually impossible. In 1991 Phil Zimmerman developed his first version of an encryption program called Pretty Good Privacy designed to secure email communications, files or even entire disks. Two years later, Zimmerman was under criminal investigation for exporting munitions without a license and was barred from sharing his software on the Internet. Zimmerman published the whole PGP source code in a hardcover book distributed by MIT Press. In a digital form, PGP was an outlawed piece of software. But printed in a book, it was free speech protected by the Constitution. In 1994, a graduate student at the University of California was developing an encryption algorithm that he intended to publish, distribute and share openly on public lectures and on the Internet. However, the US Department of State classified his cryptographic software under the Arms Export Control Act and the International Traffic in Arms Regulations. After several years of legal battles, the court eventually decided that Bernstein’s source code is protected by the Constitution. The judge ruled that code is speech. Online privacy protects you from censorship. Encryption allows you to express yourself publicly but anonymously. It lets you develop and try ideas before you are comfortable to share them with others. It gives you a space with your own borders where you are free from judgment and control. The first amendment grants you the right to encrypted speech. Sources Legal cases https://www.eff.org/cases/bernstein-v-us-dept-justice https://scholarship.law.berkeley.edu/cgi/viewcontent.cgi?referer=&httpsredir=1&article=1180&context=btlj https://www.eff.org/deeplinks/2015/04/remembering-case-established-code-speech https://www.eff.org/deeplinks/2005/07/eff15-phone-call https://www.eff.org/press/archives/2008/04/21-40 https://www.eff.org/press/archives/2008/04/21-29 https://www.eff.org/press/archives/2008/04/21-42 https://www.eff.org/deeplinks/2014/09/nine-epic-failures-regulating-cryptography https://law.stackexchange.com/questions/3696/is-the-right-to-keep-and-bear-crypto-protected-by-the-second-amendment Other https://networkingnerd.net/2016/03/16/thoughts-on-encryption/ http://www.cypherspace.org/rsa/legal.html https://www.millercanfield.com/resources-417.html https://www.gpo.gov/fdsys/pkg/FR-2018-08-30/pdf/2018-18771.pdf#page=1 https://www.ecfr.gov/cgi-bin/text-idx?node=pt22.1.121 https://www.law.cornell.edu/cfr/text/22/121.1 https://www.washingtonpost.com/wp-srv/politics/special/encryption/encryption.htm??noredirect=on https://www.nytimes.com/1996/11/08/business/us-classifies-a-device-to-surf-the-web-as-a-weapon.html https://www.philzimmermann.com/EN/essays/WhyIWrotePGP.html https://en.wikipedia.org/wiki/Pretty_Good_Privacy#cite_ref-zimmermann2_16-0 Music by CO.AG Music https://www.youtube.com/channel/UCcavSftXHgxLBWwLDm_bNvA Follow me: https://twitter.com/The_HatedOne_ https://www.bitchute.com/TheHatedOne/ https://www.reddit.com/user/The_HatedOne/ https://www.minds.com/The_HatedOne The footage and images featured in the video were for critical analysis, commentary and parody, which are protected under the Fair Use laws of the United States Copyright act of 1976.
Views: 10490 The Hated One
Will Quantum Computers break encryption?
 
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How do you secure messages over the internet? How do quantum computers break it? How do you fix it? Why don't you watch the video to find out? Why does this description have so many questions? Why are you still reading? What is the meaning of life? Facebook: https://www.facebook.com/frameofessence Twitter: https://twitter.com/frameofessence YouTube: https://www.youtube.com/user/frameofessence CLARIFICATIONS: You don't actually need a quantum computer to do quantum-safe encryption. As briefly mentioned at 7:04 , there are encryption schemes that can be run on regular computers that can't be broken by quantum computers. CORRECTIONS: [2:18] Technically, you can use any key to encrypt or decrypt whatever you want. But there's a specific way to use them that's useful, which is what's shown in the video. [5:36] In RSA, depending on exactly what you mean by "private key", neither key is actually derivable from the other. When they are created, they are generated together from a common base (not just the public key from the private key). But typically, the file that stores the "private key" actually contains a bit more information than just the private key. For example, in PKCS #1 RSA private key format ( https://tools.ietf.org/html/rfc3447#appendix-A.1.2 ), the file technically contains the entire public key too. So in short, you technically can't get the public key from the private key or vice versa, but the file that contains the private key can hold more than just the private key alone, making it possible to retrieve the public key from it. Video links: Encryption and HUGE numbers - Numberphile https://youtu.be/M7kEpw1tn50 The No Cloning Theorem - minutephysics https://youtu.be/owPC60Ue0BE Quantum Entanglement & Spooky Action at a Distance - Veritasium https://youtu.be/ZuvK-od647c Sources: Quantum Computing for Computer Scientists http://books.google.ca/books/about/Quantum_Computing_for_Computer_Scientist.html?id=eTT0FsHA5DAC Random person talking about Quantum MITM attacks http://crypto.stackexchange.com/questions/2719/is-quantum-key-distribution-safe-against-mitm-attacks-too The Ekert Protocol (i.e. E91) http://www.ux1.eiu.edu/~nilic/Nina's-article.pdf Annealing vs. Universal Quantum Computers https://medium.com/quantum-bits/what-s-the-difference-between-quantum-annealing-and-universal-gate-quantum-computers-c5e5099175a1 Images, Documents, and Screenshots: Post-Quantum Cryptography initiatives http://csrc.nist.gov/groups/ST/post-quantum-crypto/cfp-announce-dec2016.html http://pqcrypto.eu.org/docs/initial-recommendations.pdf Internet map (Carna Botnet) http://census2012.sourceforge.net/ Quantum network maps https://www.slideshare.net/ADVAOpticalNetworking/how-to-quantumsecure-optical-networks http://www.secoqc.net/html/press/pressmedia.html IBM Quantum http://research.ibm.com/ibm-q/ Music: YouTube audio library: Blue Skies Incompetech: Jay Jay Pamgaea The House of Leaves Premium Beat: Cutting Edge Technology Second Time Around Swoosh 1 sound effect came from here: http://soundbible.com/682-Swoosh-1.html ...and is under this license: https://creativecommons.org/licenses/sampling+/1.0/
Views: 725739 Frame of Essence
Digital Signature Algorithm? Keep your's Safe! Explained in Hindi/Urdu
 
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Digital Signature Algorithm? Keep your's Safe! Explained in Hindi/Urdu Asslam O Alikum Dosto,Aaj ki is video mein maine aap ko Digital Signatures k bary mein batany ki koshish ki ha, aap sab doston ny bohat baar DIGITAL SIGNATURE k bary mein sona ho ga,Ab daily life mein to aap sabhi normal signatures ko use karty hain, lakin dosto yahan per Digital Signatures bilkul alag concept ha or kaafi important bhee ha. Dosto mujhe umeed hai k Digital Signature Algorithm ki yeh video aap ko pasand aaye ge.Techinfoedu Channel ko Subscribe krny k sath sath video ko Like or apny doston k sath Share krna mat bhholiya ga, Hamesha Khush rahain or Aap ka din accha guzry ALLAH HAFIZ.................. Share, Support, Subscribe!!! Thumbnail and Image Credits: Google Search Cell Phone Break the Signals? What is Jammer? Explained in [Hindi/Urdu] https://www.youtube.com/watch?v=d4NBcH7J5a0 How to earn Online| 5 Ways to EARN Online 100% Legal https://www.youtube.com/watch?v=A-f6AbhSeek 5G Technology Review - The Future is Near | Detail Explained in [Hindi/Urdu] https://www.youtube.com/watch?v=_nS14KKY8Ho How to repair a water damage Phone | Best 3 Methods in [Hindi/Urdu] https://www.youtube.com/watch?v=uC-Qm_2n3OY How to Check Laptop Generation in Windows 7, 8, 8.1, 10 Explained https://www.youtube.com/watch?v=zjmbxDLpzA8 DSLR Effects in your Android Phone Very Easily Explained in [Hindi/Urdu] https://www.youtube.com/watch?v=9Aj8h37dS8A Blasting Batteries| Note 7 Battery Explosion | Exploding Li-ion Batteries Explained https://www.youtube.com/watch?v=zOhh5ubWtYw How to Check Your SmartPhone is Original or Fake https://www.youtube.com/watch?v=DHDyn3T4xn4 why can't you use phones on planes? https://www.youtube.com/watch?v=_GSNYP_dcEQ What is Cache Memory? Detail Explained in [Hindi/Urdu] https://www.youtube.com/watch?v=_DuePPFkqCo Top 10 Secret Tips Buying Second Hand Smart Phones Tutorial https://www.youtube.com/watch?v=M-2IUCga00s INTRODUCTION TO DIGITAL SIGNATURES, what is digital signature in hindi, digital signature in cryptography, How Do Digital Signatures Work?, digital signatures explained, digital signature explained easy, pdf digital signatures explained, digital signature algorithm explained, digital signatures explained, digital signature explained easy, pdf digital signatures explained, digital signature algorithm explained, digital signature algorithm explained, digital signatures explained by, digital signature explained easy, digital signatures explained guitar, pdf digital signatures explained, digital signatures explained simply, digital signatures explained uk, digital signatures explained xkcd, digital signatures explained xda, digital signatures explained youtube, digital signature, digital signatures, signatures, digital signature online, how to get digital signature, digital signature download, public-key cryptography, free digital signature, cryptography, pdf, encryption, ssl, private key,digital certificate, digital signature pdf, explained, public key, 128 bit encryption, rsa, what is digital encryption, how to create an e-signature, digitally signing a document, what is digital signature, document management system, user directories, hash, excel, word, cosign digital signatures, cosign, arx, public private key, security,cryptography,public key Subscribe: http://goo.gl/c4oenk Youtube: http://www.youtube.com/c/Techinfoedu Twitter: http://twitter.com/TechInfoEdu8079 Facebook: http://www.facebook.com/Techinfoedu-1682194382043556 Instagram: https://www.instagram.com/TechInfoEdu Google Plus: https://plus.google.com/+Techinfoedu Pintrest: https://www.pinterest.com/techinfoedu About : Techinfoedu is a Youtube Channel,where you will find Latest Technological videos in Hindi/Urdu.and New Video is Posted Everyday :) :) :)
Views: 7996 Tech Info Edu
FREE File Encryption and Decryption Software in JAVA
 
12:20
You can download the source code and the executable from here: https://github.com/arlenebatada/File-Encryption-and-Decryption-Application-in-JAVA Do you wish to convert your music to a form in which others cannot listen it? Do you wish to convert your movies to a form in which others cannot watch them? Do you wish to convert your documents to a form in which others cannot read them? Do you wish to convert your executable files to a form in which others cannot execute them? If your answer to any of the above questions is "YES" then this software is definitely for you. With this software you can perform ENCRYPTION and encrypt your video files, audio files, text files, executable files, pdf, or any other file of your choice. This way, without your password, files such as movies, music, pdf, documents, images, etc. won't open. Executable files will no longer be in a state to be executed. Would you like to have your encrypted files back in the form they used to be? Don't worry. It is also other way around. With the password you had used for encryption you can perform DECRYPTION and convert your files back to their original form. Moreover, the application does NOT store your passwords. Instead it uses SHA-512 hashing algorithm to verify the password.
Views: 9069 Arlene Batada
How to use CrypTool for creating the digital signature for documents
 
03:30
CrypTool is an open-source project. The main result is the free e-learning software CrypTool illustrating cryptographic and cryptanalytic concepts. According to "Hakin9" CrypTool is worldwide the most widespread e-learning software in the field of cryptology. CrypTool implements more than 400 algorithms. #RanjiRaj #CrypTool #DigitalSignature Follow me on Instagram 👉 https://www.instagram.com/reng_army/ Visit my Profile 👉 https://www.linkedin.com/in/reng99/ Support my work on Patreon 👉 https://www.patreon.com/ranjiraj
Views: 4160 Ranji Raj
How Many Cops to Catch a Robber? | 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 Last episode, we used graph theory to figure out how a cop could catch a robber. But what happens when we introduce multiple cops? What happens if you have "lazy" cops or "drunk" robbers? Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode The Cops and Robbers Theorem | Infinite Series https://www.youtube.com/watch?v=9mJEu-j1KT0 Cops and Robbers is played on a finite and connected graph - meaning that any two vertices are joined by a path of edges. The game begins by placing a cop and a robber each on a single vertex; we say it “occupies” that vertex. They alternate moving along the edges, from a vertex to neighboring vertex. Or, on any given turn, the player can choose to not move -- to stay where they are. We’ll assume that the cop always goes first. If, eventually, the cop lands on the robber’s vertex, the game is over -- we say that the game is a “win” for the cop. But, if the robber can avoid the cop indefinitely, we say that the game is a win for the robber. Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Assistant Editing and Sound Design by Mike Petrow Made by Kornhaber Brown (www.kornhaberbrown.com) Resources: M. Aigner and M. Fromme -- A Game of Cops and Robbers: https://www.math.ucdavis.edu/~erikslivken/classes/2016_spring_180/aigner%20fromme.pdf What is Cop Number? -Anthony Bonato http://www.math.ryerson.ca/~abonato/papers/whatis_copnumber_new.pdf The Game of Cops and Robbers on Graph - Anthony Bonato and Richard Nowakowski Anthony Bonato -- "What is... Cops and Robbers" http://www.ams.org/notices/201208/rtx120801100p.pdf Special Thanks to Anthony Bonato and Brendan Sullivan Big thanks to Matthew O'Connor and Yana Chernobilsky who are supporting us on Patreon at the Identity level! And thanks to Nicholas Rose and Mauricio Pacheco who are supporting us at the Lemma level!
Views: 65379 PBS Infinite Series
C# Tutorial 50: Decrypt Encrypted data again to simple text
 
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AES Encryptor - Encrypt and Decrypt text with AES encryption C# AES decryption Visual C# Crypt and Decrypt online Forms Application 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: 22603 ProgrammingKnowledge
16. Side-Channel Attacks
 
01:22:16
MIT 6.858 Computer Systems Security, Fall 2014 View the complete course: http://ocw.mit.edu/6-858F14 Instructor: Nickolai Zeldovich In this lecture, Professor Zeldovich discusses side-channel attacks, specifically timing attacks. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 12631 MIT OpenCourseWare
Validating digital signatures by API or Adobe Reader
 
10:35
Learn how to easily validate digital signatures on Adobe Reader or on your own application by using our API. This step-by-step tutorial can also be found at: https://t1t.gitbooks.io/tutorial-pdf-digital-signature-validation/ USEFUL LINKS: Trust1Team Signarator App - https://validation.t1t.be/ Trust1Gateway API Marketplace - https://accmkt.t1t.be/ GITHUB example of an implementation - https://github.com/Trust1Team/vwapp Document used in this guide - https://t1t.gitbooks.io/tutorial-pdf-digital-signature-validation/content/assets/Trust1Team.pdf Trust1Gateway API Marketplace Guide - https://www.gitbook.com/book/t1t/trust1gateway-marketplace-guide Questions/Suggestions - https://groups.google.com/forum/#!forum/trust1team FOLLOW US IN THESE PLACES FOR UPDATES Twitter - http://twitter.com/trust1team LinkedIn - https://www.linkedin.com/company/3260074/ Blog - https://www.trust1team.com/blog
Views: 150 Trust1Team
How to verify the IOHK PGP signature for Daedalus on Windows. (optional)
 
12:08
This video demonstrates how to verify a IOHK PGP signature on Daedalus for people using the Windows operating system. These steps are optional and not necessary, and only for added layers of security. The video is designed for both beginners and experienced computer users. The purpose of the video is provide Daedalus wallet users a way to verify their software download is signed by the correct developer in order to prevent malicious software problems. PGP signatures and amplifying information can be found on GitHub at this link ... https://github.com/input-output-hk/daedalus/releases Videos from the Digital Fortress Youtube channel should not be taken as financial advice or endorsement of any product. Purchasing and transactions with crypto currency are high risk. Users of crypto currencies need to understand these risks and accept responsibility for making their own financial decisions. Cheers, Rick Cardano Website: https://cardano.eco Staking Website: https://ada.eco
Views: 356 Digital Fortress
How to Encrypt Strings and Files in Python
 
05:31
In this video I show you how to encrypt and decrypt strings and files using Python. I show you how to create a key, store the key and then how to use the key to encrypt and decrypt strings and files. This video demonstrates the use of the cryptography module. 🌎 Post with code and a written tutorial: https://nitratine.net/blog/post/encryption-and-decryption-in-python/ 📺 Auto Py to Exe: https://youtu.be/OZSZHmWSOeM 📺 Python GUI Using Chrome: https://youtu.be/2kbeBzEQfXE 📺 How to Send Emails in Python: https://youtu.be/YPiHBtddefI The cryptography is supported by Python 2.7 and Python 3.4 and above. (Also PyPy 5.3+) 🌎 cryptography docs: https://cryptography.io/en/latest/ 🐍 In this video I use Python 3.6. 👍🏼 Feel free to comment with any issues.
Views: 15494 PyTutorials
How digital Signatures work
 
02:33
A little slideshow I put together while studying for a Computer security class. I hope someone finds it helpful.
Views: 26577 Mike Farnsworth
Steps to Create Digital Certificate, Theory of Registration Authority in Hindi
 
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Digital Certification Creation - Steps to Create Digital Certificate, Theory of Registration Authority Keywords: Digital Certificate Steps to Create Digital Certificate Definition of Registration Authority Need of Registration Authority Network Security Notes
Notepad Tricks  Cryptography Telugu
 
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Cryptography Telugu,notepad tips in telugu,computer tips in telugu,hacking tips in telugu #telugutechtuts #hafiztime -~-~~-~~~-~~-~- Please watch: "ఆఫర్స్ లో ఈ మొబైల్స్ కొంటే మంచిది | డబ్బులు అదా అవుతాయి" https://www.youtube.com/watch?v=Cizc3Gv8M-4 -~-~~-~~~-~~-~-
Views: 1024 Telugu TechTuts
Discovering Satoshi: David Chaum
 
03:21
Thinking about purchasing a Ledger Nano Hardware Wallet? Browse their official website: https://www.ledgerwallet.com/r/67ef Want to join coinbase to begin your crypto journey? Here’s a link to get free $10: https://www.coinbase.com/join/558828dc34383271a500003b Step up your game and Check Out Binance too: https://www.binance.com/?ref=10080191 Join the Robinhood app and invite your friends to Robinhood and win free stock. Here's my invite: http://share.robinhood.com/heidic1 Find me on Steemit: www.steemit.com/@heiditravels Twitter: @blockchainchick Instagram: @hheidiann If you’re looking for an app that tracks the price of BTC & ETH and many other coins, check out the CoinView App: https://play.google.com/store/apps/details?id=br.com.freeflowt.coinview LINKS FOR ADDITIONAL READING FOR THIS VIDEO & ALL INFO IN TEXT DOWN BELOW David Chaum Website: https://chaum.com/ Wiki: https://en.wikipedia.org/wiki/David_Chaum Chaum’s 1981 Paper that began anonymous communications:“Untraceable Electronic Mail, Return Addresses, and Digital Pseudonyms” https://www.cs.utexas.edu/~shmat/courses/cs395t_fall04/chaum81.pdf More on PrivaTegrity: https://www.securityweek.com/privategrity-david-chaums-anonymous-communications-project Wired Article on PrivaTegrity: https://www.wired.com/2016/01/david-chaum-father-of-online-anonymity-pla David Chaum has been making impactful contributions to things like anonymous communication channels, anonymous digital transactions, and privacy protocols since the 1980s. Actually, impactful contributions doesn’t quite do it justice, in fact, it wouldn’t be an exaggeration to say that this man is responsible for unleashing these concepts in the first place. David wrote a paper in 1981 that opened the door for anonymous communications. This paper perfectly describes how anonymous communications take place today. Here’s an excerpt from the paper: “A technique based on public key cryptography is presented that allows an electronic mail system to hide who a participant communicates with as well as the content of the communication - in spite of an unsecured underlying telecommunication system. The technique does not require a universally trusted authority. One correspondent can remain anonymous to a second, while allowing the second to respond via an untraceable return address.” He also developed: * blind signatures * secure voting systems * zero-knowledge arguments. Visionaries are so because they can “see” and understand what the future might hold or need when most others can’t. The things that David valued so highly over 30 years ago are finally being more widely valued and adopted because more and more people are waking up to the fact that anonymity is something to be valued and it’s a right that everyone should be entitled to. Oh, don’t worry, David Chaum isn’t done yet. He has also created a project called PrivaTegrity. According to an article on wired.com, PrivaTegrity is “…designed to allow fully secret, anonymous communications that no eavesdropper can crack, whether a hacker or an intelligence agency.” It is also “…meant to be both more secure than existing online anonymity systems like Tor or I2P and also more efficient; he claims is fast enough to work as a smartphone app with no perceptible delay” According to Chaum, “It’s a way to create a separate online reality.”, “One in which all the various things we now know people like to do online can be done in a lightweight manner under a completely different and new and very attractive privacy and security model.” If you’ve used this network please leave a comment down below and let us know your thoughts on it. If you’d like to learn more about things mentioned in this video, please feel free to check out the links posted down below in the description to read up on how David Chaum has shaped this crypto space.
Views: 2923 Crypto Tips
Diffie Hellman Algorithm with solved example
 
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In this video I explained Diffie Hellman Algorithm with solved Numerical problem. Video is about how two persons can exchange their secret key. Notes link : https://drive.google.com/file/d/1_T5PVcl5NfR_S9p9MEwD42cS2YqN97FJ/view?usp=drivesdk If you have any doubts then you can connect me via: Email : [email protected] Contact : 7030994979
Views: 6332 Exam Partner
pkiNote Free: Text encryption using password
 
01:31
This example shows how to use simple encryption with password. It allows you to skip all the complications related to installation of X.509 certificates. pkiNote Free Edition is a free software that can be used to encrypt and digitally sign text using X.509 certificates. You can then create secure abstracts in documents which will be encrypted, post encrypted web pages, create signed text in any page. You can download and use software for free from http://www.secomsoft.com website. x86 .exe installation: http://secomsoft.com/en/arc/soft/pkinote103en_x86.exe User Guide: http://secomsoft.com/en/arc/doc/ug/pkinote10ug_en.pdf Quick Guide: http://secomsoft.com/en/arc/doc/qg/pkinote10qg_en.pdf Also you can download it here: http://download.cnet.com/PkiNote/3000-2092_4-75940082.html Please be sure to read User Guide and specifically chapters about certificate installation. Online procedure how to install PFX (personal) certificates can be found here: http://www.buypki.com/about-buypki-com/adding-certificates. Send us your feedback to [email protected] or [email protected]
Views: 126 Buypki
WinTrezur - Safely view and encrypt images
 
02:43
WinTrezur - image viewer with integrated strong encryption support that stores images in encrypted archives. Runs on Windows XP, Windows Vista, and Windows 7. Free download at http://www.MyPlanetSoft.com
Views: 165 mptube0
C# Tutorial 49: Encrypt data from simple string in C#
 
14:34
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: 49361 ProgrammingKnowledge
Petya ECDH key exchange
 
03:49
Petya Elliptic Curve Diffie-Hellman key exchange. Now you can enjoy the elliptic curve encryption experience with a smooth elevator bossa nova! More information about Petya: https://labsblog.f-secure.com/2016/04... Online ECDH form: http://www-cs-students.stanford.edu/~...
Quantum Cryptography Explained
 
08:13
This episode is brought to you by Squarespace: http://www.squarespace.com/physicsgirl With recent high-profile security decryption cases, encryption is more important than ever. Much of your browser usage and your smartphone data is encrypted. But what does that process actually entail? And when computers get smarter and faster due to advances in quantum physics, how will encryption keep up? http://physicsgirl.org/ ‪http://twitter.com/thephysicsgirl ‪http://facebook.com/thephysicsgirl ‪http://instagram.com/thephysicsgirl http://physicsgirl.org/ Help us translate our videos! http://www.youtube.com/timedtext_cs_panel?c=UC7DdEm33SyaTDtWYGO2CwdA&tab=2 Creator/Editor: Dianna Cowern Writer: Sophia Chen Animator: Kyle Norby Special thanks to Nathan Lysne Source: http://gva.noekeon.org/QCandSKD/QCand... http://physicsworld.com/cws/article/n... https://epic.org/crypto/export_contro... http://fas.org/irp/offdocs/eo_crypt_9... Music: APM and YouTube
Views: 275669 Physics Girl
When File Encryption Helps Password Cracking
 
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The speaker will focus on eCryptfs, a Linux kernel file system used for file encryption. He will point out disadvantages of the default key wrapping process implemented in eCryptfs user space utilities (ecryptfs-utils) and suggest a possible solution to the problem. Author: Sylvain Pelissier More: http://www.phdays.com/program/40406/ Any use of this material without the express consent of Positive Technologies is prohibited.

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