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Hashing Algorithms and Security - Computerphile
 
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Audible free book: http://www.audible.com/computerphile Hashing Algorithms are used to ensure file authenticity, but how secure are they and why do they keep changing? Tom Scott hashes it out. More from Tom Scott: http://www.youtube.com/user/enyay and https://twitter.com/tomscott http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Pigeon Sound Effects courtesy of http://www.freesfx.co.uk/ Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels
Views: 788424 Computerphile
Passwords & hash functions (Simply Explained)
 
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How can companies store passwords safely and keep them away from hackers? Well let's find out! With all the data breaches lately, it's likely that the password of one of your accounts has been compromised. Hackers now might know the password you've used, but they also might not.. To understand why, we'll take a look at what methods a company can use to protect user passwords. We'll take a look at encryption, hash functions and a multilayer approach! 📚 Sources Can be found on my website: https://savjee.be/videos/simply-explained/hash-functions/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
SHA: Secure Hashing Algorithm - Computerphile
 
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Secure Hashing Algorithm (SHA1) explained. Dr Mike Pound explains how files are used to generate seemingly random hash strings. EXTRA BITS: https://youtu.be/f8ZP_1K2Y-U Tom Scott on Hash Algorithms: https://youtu.be/b4b8ktEV4Bg 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: 498244 Computerphile
How NOT to Store Passwords! - Computerphile
 
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Security of users' passwords should be at the forefront of every web developer's mind. Tom takes us through the insecure ways in which some websites deal with passwords. Note: At circa 8mins, the animation does not show how the 'salt' is also stored in the database alongside the username. Hashing Algorithms and Security: http://youtu.be/b4b8ktEV4Bg Security of Data on Disk: http://youtu.be/4SSSMi4X_mA More from Tom Scott: http://www.youtube.com/user/enyay and https://twitter.com/tomscott http://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computerphile is a sister project to Brady Haran's Numberphile. See the full list of Brady's video projects at: http://bit.ly/bradychannels
Views: 1556408 Computerphile
How hash function work?
 
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What is hash function/algorithm? What is mainly used for? What are three basic characteristics of a secure hash algorithm? In this video, I will also demonstrate how hash function works. Playlist: Basic Cryptography https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV Advanced Cryptography: https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7 Please leave comments, questions, and Please subscribe! Thank you very much! Sunny Classroom
Views: 49452 Sunny Classroom
Password Cracking - Computerphile
 
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'Beast' cracks billions of passwords a second, Dr Mike Pound demonstrates why you should probably change your passwords... Please note,at one point during the video Mike suggests using SHA512. Please check whatever the recommended process is at the time you view the video. Here's a look at 'Beast': https://www.youtube.com/watch?v=RG2Z7Xgthb4 How NOT to Store Passwords: https://youtu.be/8ZtInClXe1Q Password Choice: https://youtu.be/3NjQ9b3pgIg Deep Learning: https://youtu.be/l42lr8AlrHk Cookie Stealing: https://youtu.be/T1QEs3mdJoc 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: 1624137 Computerphile
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: 46184 Coding Tech
Python Hash-Decrypter Program | Decode Hash Encryption 🔐
 
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Hello Friends, In This Video, I'm Gonna Show You How You Can Encrypt & Decrypt The Hash String With The Help Of Hashlib Python Module Python-Hash-Cracker Program - https://goo.gl/zs3ikD HASHING : - If you need secure hashes or message digest algorithms, then Python’s standard library has you covered in the hashlib module. It includes the FIPS secure hash algorithms SHA1, SHA224, SHA256, SHA384, and SHA512 as well as RSA’s MD5 algorithm. Python also supports the adler32 and crc32 hash functions, but those are in the zlib module. One of the most popular uses of hashes is storing the hash of a password instead of the password itself. Of course, the hash has to be a good one or it can be decrypted. Another popular use case for hashes is to hash a file and then send the file and its hash separately. Then the person receiving the file can run a hash on the file to see if it matches the hash that was sent. If it does, then that means no one has changed the file in transit Cryptographic hashes are used in day-day life like in digital signatures, message authentication codes, manipulation detection, fingerprints, checksums (message integrity check), hash tables, password storage and much more. They are also used in sending messages over a network for security or storing messages in databases. There are many hash functions defined in the “hashlib” library in python. Some of the most used hash functions are: MD5: Message digest algorithm producing a 128 bit hash value. This is widely used to check data integrity. It is not suitable for use in other fields due to the security vulnerabilities of MD5. SHA: Group of algorithms designed by the U.S's NSA that are part of the U.S Federal Information processing standard. These algorithms are used widely in several cryptographic applications. The message length ranges from 160 bits to 512 bits. Functions associated : encode() : Converts the string into bytes to be acceptable by hash function. digest() : Returns the encoded data in byte format. hexdigest() : Returns the encoded data in hexadecimal format. ----------------------------------------------------------------------------------------------------------- Hope This Video Is Helpful For You ► Connect with me! ◄ Facebook - http://bit.ly/2tbOg3b Google+ - http://bit.ly/2jrWz6g Instagram - http://bit.ly/2tbR14z Reddit - https://bit.ly/2J5Vqfm ★★★Watch my most recent videos playlist★★★ Kali Linux - https://goo.gl/36M3JD Deep Web - https://goo.gl/7ueKNh Python Coding - https://goo.gl/dCtyrS Java Coding - https://goo.gl/oxFo8W Basic Computer - https://goo.gl/kwFXM3 Hacking - https://goo.gl/vjT916 Games Benchmark - https://goo.gl/eshw3T Gaming - https://goo.gl/mLuQwf Notepad Tricks -https://goo.gl/3uapMJ CMD Tricks - https://goo.gl/x1KH8C Facebook Tricks - https://goo.gl/1JV9Fz Problem Solved - https://goo.gl/eJwjXq Gmail Tricks - https://goo.gl/fSpbaB And talking about subscribing, please subscribe to my channel, if you enjoyed this video and want more how-to, Thanks so much for watching!
Views: 10020 Mighty Ghost Hack
Importance Of Developers Salting User Passwords
 
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Racker Bret McGowen discusses the importance of developers salting their user's passwords to help increase security for their app.
Views: 36238 Rackspace
Salted Password Scheme - Applied Cryptography
 
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This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 15032 Udacity
This is How Hackers Crack Passwords!
 
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In this video, we'll see how hackers really crack passwords. This video is edited with Filmora video editor, get it here : https://goo.gl/RtmNC5 DISCLAIMER : This video is intended only to educate people about how hackers crack passwords, and how important the strength of the password is, when coming to security. If you are using a common password like test123456 which I used in the video, then the hacker will easily be able to know the plain text form of your password from the hash string. There is something known as Rainbow tables. These rainbow tables contain the password hashes of numerous commonly used passwords. So the hacker will be to do a simple search with the password hash that he has, and if the password hash exists in the rainbow table, then that means the password is successfully cracked, and we have the password in a plain text. Remember that rainbow tables contain the password hashes of only the passwords which are commonly used. As a reference, you can go to https://crackstation.net/ If the password is not a commonly used password, then there comes dictionary attack and brute force attack. In dictionary attack, you have a wordlist. A wordlist is nothing but a huge text file with loads of passwords. In this attack, the hacker writes a code which compares the password hash to be cracked, with the password hash of each and every password that exists in the wordlist. Now, this attack can be target-specific as well. which means we can build a wordlist targeting an individual provided that we know some basic details about him/her. In a brute force attack, each and every combination of letters ,symbols and numbers are converted into their hash forms, and are then compared with the hash to be cracked. This is a more expensive. A new technique called salting is introduced by security analysts to give hackers a hard time in cracking passwords. In this technique, a specific combination of characters are inserted at specific positions of the plain text password before hashing. Every company has its own salting algorithm, and they don’t make their salting algorithm public For example, kets say Facebook salting algorithm inserts the string f&2p at the beginning, after the third character, and at the end of the plain text password. After salting the password, the salted password is then hashed by a hashing algorithm. So when salting is used, rainbow tables are of no use even if the password to be cracked is a weak commonly used password. Because the hashe of the password without salting do not match the hash of the password which is salted Also, brute force and dictionary attack are not effective to crack salted passwords unless the hacker already knows the salting algorithm employed by a company. Visit my website : https://techraj156.com Like my Facebook Page : https://fb.com/techraj156 Follow me on Instagram : https://instagram.com/teja.techraj Follow on Twitter : https://twitter.com/techraj156 For written tutorials, visit my blog : http://blog.techraj156.com SUBSCRIBE for more videos! Thanks for watching! Cheers!
Views: 6803545 Tech Raj
Hashing Passwords | Node Authentication Tutorial – Part 3
 
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🚀Support Chris Courses with Patreon: https://www.patreon.com/chriscourses 🖥Professional Web Development Services from Chris: https://resovere.com/ Learn the basics behind hashing users' passwords and why it is so very important to do this within any password related app. When it comes to securing your users' passwords, it's integral, no, absolutely necessary to hash your users' passwords before storing them in a database. Hashing is the process of scrambling up a user's password into a long string of characters that's undecipherable. The interesting thing about hashing: once you put the password in the hasher, there's no way to convert it back to its original form (at least from a mathematical standpoint). This helps ensure that your users' passwords are unreadable in the off chance someone happens to stumble upon the data in your database. Code along with me as I demonstrate how to implement hashing functionality into our user based node app. bcrypt npm link: https://www.npmjs.com/package/bcrypt Video Git Repo (starts at part 1): ------------------------------------------------ https://github.com/christopher4lis/express-cc Node Authentication Process: ------------------------------------------ // Add our boilerplate // 1.x Git clone express-cc repo // 2.x Run yarn / npm install // Create a new user in the database // 1.x Create a form within a view // 2.x Create route that'll process the form's post request // 3.x Create a database connection using .env file // 4.x Grab form input and insert into database // 5.x Add express-validation package // 6.x Validate user input on backend // 7.x Validate user input on frontend // 8.x Hash our user's password // 9.x Store user in database // Login user (update user session, return auth cookie) // 1. Install passport // 2. Configure passport with local strategy // Protect routes and only permit entry with authorization cookie // Create logout button // Create login page Video Timeline: ----------------------------- 00:50 - Why storing passwords in plain text is bad 01:36 - What is hashing? 02:35 - How to hash our users' passwords 03:05 - What is bcrypt? 06:01 - What is a salt? 07:08 - Testing out our hashing implementation To be continued... The Platform: ------------------------- http://chriscourses.com is a platform in progress whose goal is to educate aspiring and seasoned web developers via story driven learning. Each course tells a different story, and each milestone reveals a different scene. With an expansive universe to explore, you can track your progress, and gain the necessary skills needed to build your dreams. For updates on the progress of chriscourses.com and future videos, join the Chris Courses mailing list at http://chriscourses.com. Chris Courses Social: ----------------------------------- Twitter: https://twitter.com/chriscourses Facebook: https://www.facebook.com/chriscourses Christopher Lis Social: ------------------------------------- Twitter: https://twitter.com/christopher4lis CodePen: http://codepen.io/christopher4lis
Views: 22916 Chris Courses
Cryptographic Hash functions - how your passwords and other credentials are stored in databases
 
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Lesson 3 of cryptography series (to see all video check cryptography playlist - link given below). cryptography playlist : https://www.youtube.com/watch?v=_Yw7QWbk9Vs&list=PLf8bMP4RWebLVGpUnhji9Olkj1jdXfzFd Subscribe to our new youtube channel also : https://www.youtube.com/channel/UCNx1Gkyy9LfOxDMbcOKuV4g cryptographic hash functions - storing data in databases securely this video includes : what are hash functions , what is the use of hash functions , how confidential information like passwords are stored in databases , why do we use hash functions , properties or features of hash functions , what is an ideal hash etc I have used md5 hash an an example though md5 as per me is one of worst hashes but for learning point of view its best hash as per me . like my page on facebook : https://www.facebook.com/guidetohacking/ #cryptography #hash #function
Secure Hash Algorithm
 
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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: 28702 Udacity
Comparison of Encryption Algorithms
 
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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: 1339 Udacity
Bcrypt & Password Security - An Introduction
 
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A conceptual introduction to bcrypt and why it's useful in the context of user password security. MakerSquare | http://mks.io/learntocode MakerSquare is a three-month full-time career accelerator for software engineering. By teaching computer science fundamentals and modern web languages like JavaScript, we prepare students to join top flight engineering teams.
Views: 28441 Hack Reactor
SHA-1 (Secure hash Algorithm) working in English  | CSS series
 
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Take the full crash course of Cryptography and Security System for free at Last moment tuitions Full course : https://lastmomenttuitions.com/course/cryptography-and-system-security/ Sample Notes :https://goo.gl/QpZPF5 For full hand made notes of Artificial Intelligence its only 100 rs payment options is PAYTM :9762903078 once we get payment notification we will mail you the notes on your email id contact us at :[email protected] whatsapp :9762903078 apko koi bhi doubt ho toh app humko direct email ya phone kar sakte ho Cryptography and security systems Series introduction to CSS: https://goo.gl/tjrh1L security goals and mechanism:https://goo.gl/uq35hP symmetric cipher:https://goo.gl/KFxF9j Substitution cipher and its types:https://goo.gl/MKmPzk Transposition cipher:https://goo.gl/uHqD7i diffie -hellman: https://goo.gl/YrskC5 RSA Algorithm:https://goo.gl/KwzCBF Kerberos:https://goo.gl/MQPgzw IDEA algorithm : https://goo.gl/PTCqFH Dos and DDos attack: https://goo.gl/8T345G SQL injection:https://goo.gl/bcVHnw SHA-1 vs MD5 :https://goo.gl/QJBhJD chalo toh public bus pass hojao aur share karo videos ko whatsapp group apne last moment pe unn dosto ko jo apni tarah last moment pe padhte hai Aur videos CSS ke aane waale hai so Channel ko subscribe jaroor karna follow us on: https://www.instagram.com/last_moment_tuitions https://www.facebook.com/lastmomenttuition https://www.facebook.com/sumerr3
Views: 82195 Last moment tuitions
How secure is 256 bit security?
 
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Supplement to the cryptocurrency video: How hard is it to find a 256-bit hash just by guessing and checking? What kind of computer would that take? Cryptocurrency video: https://youtu.be/bBC-nXj3Ng4 Home page: https://www.3blue1brown.com/ Several people have commented about how 2^256 would be the maximum number of attempts, not the average. This depends on the thing being attempted. If it's guessing a private key, you are correct, but for something like guessing which input to a hash function gives the desired output (as in bitcoin mining, for example), which is the kind of thing I had in mind here, 2^256 would indeed be the average number of attempts needed, at least for a true cryptographic hash function. Think of rolling a die until you get a 6, how many rolls do you need to make, on average? Music by Vince Rubinetti: https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown ------------------ 3blue1brown is a channel about animating math, in all senses of the word animate. And you know the drill with YouTube, if you want to stay posted on new videos, subscribe, and click the bell to receive notifications (if you're into that). If you are new to this channel and want to see more, a good place to start is this playlist: http://3b1b.co/recommended Various social media stuffs: Website: https://www.3blue1brown.com Twitter: https://twitter.com/3Blue1Brown Patreon: https://patreon.com/3blue1brown Facebook: https://www.facebook.com/3blue1brown Reddit: https://www.reddit.com/r/3Blue1Brown
Views: 1059171 3Blue1Brown
43: Hashing and de-hashing data using PHP | PHP tutorial | Learn PHP programming
 
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Hashing and de-hashing data using PHP | PHP tutorial. In this lesson you will learn about database data security, and how to hash and dehash data using PHP. In PHP we have a hash function which uses bcrypt, in order to protect data provided by our users. Login system tutorial (link starts at hashing part): https://youtu.be/xb8aad4MRx8?t=59m42s ➤ GET ACCESS TO MY LESSON MATERIAL HERE! First of all, thank you for all the support you have given me! I am really glad to have such an awesome community on my channel. It motivates me to continue creating and uploading content! So thank you! I am now using Patreon to share improved and updated lesson material, and for a small fee you can access all the material. I have worked hard, and done my best to help you understand what I teach. I hope you will find it helpful :) Material for this lesson: https://www.patreon.com/posts/php-43-download-15654480
Views: 45218 mmtuts
Asymmetric encryption - Simply explained
 
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How does public-key cryptography work? What is a private key and a public key? Why is asymmetric encryption different from symmetric encryption? I'll explain all of these in plain English! 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be 👍🏻 Like my Facebook page: https://www.facebook.com/savjee
21. Cryptography: Hash Functions
 
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MIT 6.046J Design and Analysis of Algorithms, Spring 2015 View the complete course: http://ocw.mit.edu/6-046JS15 Instructor: Srinivas Devadas In this lecture, Professor Devadas covers the basics of cryptography, including desirable properties of cryptographic functions, and their applications to security. License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
Views: 76236 MIT OpenCourseWare
Hash vs Salted Hash (How to store password) Java
 
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Published by : Arpit Shah linkedin - https://www.linkedin.com/in/arpit-shah-url/ Twitter - https://twitter.com/Arpit___Shah Facebook - fb.me/arpitshah.tutorials This video describes how to use salt and salted hash in Java, It also describe technique of storing password securely. Prerequisite : - Eclipse IDE - Java basic understanding - Understanding of Inheritance - Understanding of Constants - Understanding of method overriding At the end of the tutorial you will have clear understanding of how hash and salted hash works, what is difference between them. What is a salt, How to store password securely. Other videos you can watch : Java How to Read Files : https://youtu.be/gmZiojxQBgk Java How to write Files : https://youtu.be/3VlqS7KDTcw Java Properties File : https://youtu.be/tXsHCPAk9Bk Java Getters and Setters : https://youtu.be/f1hmmR95q_0 Java Priority Queue : https://youtu.be/bmbS6jZEar0 Java Polymorphism : https://youtu.be/xHW3ighwsNw Java Inheritance and Overriding : https://youtu.be/qSa5PzlTflU Java Overloading Methods : https://youtu.be/usnWYRA8XjU Java Keyword "final" : https://youtu.be/0vxWh588az0 Java Threads using Runnable : https://youtu.be/i67n9LRSGyg Java Wrapper Classes : https://youtu.be/9mSkCKebPfo Java Mutable and Immutable : https://youtu.be/skffvtGRfeY Java Abstract Classes : https://youtu.be/j0zjTqZC3zc Hash vs Salted Hash : https://youtu.be/hNKfEwTO3AQ
Views: 2265 Arpit Shah
C/C++ Cryptography — Simple Hashing Algorithm | Simple Hash Function
 
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• Support me on Patreon: http://www.patreon.com/Zer0Mem0ry • Donate Bitcoin: 1JhSKGgRQmir8rRF4Sm5CP4fDDofKFAypd • Facebook: https://www.facebook.com/Zer0Mem0ry • Twitter: https://www.twitter.com/Zer0Mem0ry
Views: 10182 Zer0Mem0ry
Tricks to hack hashed passwords
 
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As we know, hash function/algorithm is used to generate digest/checksum of data. Hash function is not reversible. However, it can be hacked, and it is easy. In this video, I will use some websites to crack hashed passwords manually. You can see how easy to hack hashed passwords if hackers use powerful computer or clusters of computers to hack our passwords. They would crack millions every second. Do not assume your passwords are safe as long as they are hashed into non-reversible digests. Playlist: Basic Cryptography https://www.youtube.com/watch?v=vk3py9M2IfE&list=PLSNNzog5eyduN6o4e6AKFHekbH5-37BdV Advanced Cryptography: https://www.youtube.com/watch?v=TmA2QWSLSPg&list=PLSNNzog5eydtwsdT__t5WtRgvpfMzpTc7 Please leave comments, questions and Please subscribe to my channel Many thanks, Sunny Classroom
Views: 17464 Sunny Classroom
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: 497562 itfreetraining
C# Salting & Hashing Passwords
 
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Quick demo using .NET and coding a Salt and Hashed password functionality in C#.
Views: 33161 C D
C# Tutorial - Encrypt and Decrypt a String | FoxLearn
 
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How to Encrypt and Decrypt a String in C#. The C# Basics beginner course is a free C# Tutorial Series that helps beginning programmers learn the basics of the C# Programming Language. This is the best way to Learn C# for beginners Encrypt your passwords with MD5 hashing in C# C# Salting & Hashing Passwords C# encrypting and decrypting using AES CBC, safe storing the encrypted data 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: 40553 Fox Learn
MD5 in Hindi - Message Digest, Hash Functions, Working and Operation of MD5 - Network Security
 
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MD5 in Hindi - Message Digest, Hash Functions, Working and Operation of MD5 - Network Security Hash Functions – Features, Properties, Working of MD5, Operation of MD5 #MD5 Computer Network Security(CNS) Lectures – Internet Security
NETWORK SECURITY - PGP (E-MAIL SECURITY)
 
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PGP - PRETTY GOOD PRIVACY THIS IS ONE OF THE EMAIL SECURITY MECHANISM PGP SERVICES 1. AUTHENTICATION WITH DIGITAL SIGNATURE 2. CONFIDENTIALITY 3. EMAIL COMPATABILITY 4. ZIP OR COMPRESSION FUNCTION.
How hard is cracking a good encryption or hash ? Time needed to find one collision in SHA-256
 
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Video on collision , preimage and second preimage : https://www.youtube.com/watch?v=7cFIG04DsiE Full crytography playlist : https://www.youtube.com/watch?v=_Yw7QWbk9Vs&list=PLf8bMP4RWebLVGpUnhji9Olkj1jdXfzFd Article link of our website : https://hacksandsecurity.org/posts/how-much-time-it-will-take-find-one-collision-sha-256 How much time it would take to find one collision in SHA-256 ? How hard it is to crack SHA-256 ? How hard is cracking in real world ? How is lenght and randomness of input dependent on time taken to crack the encryption or hash output ? Is cracking digital signatures feasible ? How secure is modern cryptography ?
MD5 Algorithm in Hindi
 
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Md5 algorithm explained in hindi. Di like, share and subscribe.
Views: 34442 Rudra Singh
Comparison of Hashing vs Encryption in MS SQL Server
 
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A video follow up to the blog http://enabledbusinesssolutions.com/blog/performance-comparison-between-plain-text-hashing-and-cell-level-encryption/ here I compare where hashing makes more sense than encryption and some pitfalls on using each of them.
Views: 3181 Jayanth Kurup
What's Up Argon2? The Password Hashing Winner A Year Later - JP Aumasson
 
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What's Up Argon2? The Password Hashing Winner A Year Later - JP Aumasson Passwords BSidesLV 2016 - Tuscany Hotel - Aug 03, 2016
Views: 1852 BSidesLV
How to Encrypt and Decrypt MD5's
 
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In this tutorial jackktutorials shows you how to Encrypt and Decrypt MD5 Hashes using PasswordsPro LINKS AND RESOURCES ************************* http://md5encryption.com/ http://www.insidepro.com/eng/passwordspro.shtml http://www.hashhack.com/ GET MORE JACKKTUTORIALS! ******************************** Website: http://www.jackktutorials.com Forums: http://www.jackktutorials.com/forums Facebook: http://www.facebook.com/jackktutorials Twitter: http://www.twitter.com/jackktutorials Email: [email protected] Business Contact: [email protected] G2A Re-link: https://www.g2a.com/?reflink=jackk1337
Views: 70566 JackkTutorials
Strong Password Encryption and Decryption (Salting, Hashing and Comparison) in JavaScript
 
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Strong Password Encryption (Salting and Hashing) in JavaScript (npm package bcryptjs) In this video, I will show you how you can generate strong hashes out of your plain text passwords. We will also use the Salting process to insert salts into our plain text string before hashing it. After that, we'll simply hash the salted string using the npm bcrypt package . Please Sub me ;)
Views: 115 CodingVerse
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: 35600 Sylvain Saurel
Hashing and Password Storage (How to Store Passwords)
 
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Surety Security suretysecurity.org Passwords Video 3: Hashing and Password Storage (How to Store Passwords) Shweta Batheja Samantha Lagestee Andrew Lee Mike Verdicchio Brian Walter David Evans Supported by the National Science Foundation SaTC Program
Views: 10351 David Evans
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: 297144 Computerphile
Bitcoin - Cryptographic hash function
 
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What cryptographic hash functions are and what properties are desired of them. More free lessons at: http://www.khanacademy.org/video?v=0WiTaBI82Mc Video by Zulfikar Ramzan. Zulfikar Ramzan is a world-leading expert in computer security and cryptography and is currently the Chief Scientist at Sourcefire. He received his Ph.D. in computer science from MIT.
Views: 222995 Khan Academy
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: 23601 Javapocalypse
Encryption and HUGE numbers - Numberphile
 
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Banks, Facebook, Twitter and Google use epic numbers - based on prime factors - to keep our Internet secrets. This is RSA public-key encryption. More links & stuff in full description below ↓↓↓ Gold Vault: https://youtu.be/CTtf5s2HFkA This video features Dr James Grime (http://singingbanana.com/). Message from James: "Thanks to Dr Chris Hughes of the University of York who showed me how to find the RSA public key from my browser, and showed me how awesome they look when you print them out." Regarding the keys used for encryption: x, y prime Encode key E shares no factors with (x-1)(y-1) Decode key is D with E*D - 1 a multiple of (x-1)(y-1) Thanks to Drew Mokris for the animation: http://www.spinnerdisc.com/ NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub Videos by Brady Haran Patreon: http://www.patreon.com/numberphile Brady's videos subreddit: http://www.reddit.com/r/BradyHaran/ Brady's latest videos across all channels: http://www.bradyharanblog.com/ Sign up for (occasional) emails: http://eepurl.com/YdjL9 Numberphile T-Shirts: https://teespring.com/stores/numberphile Other merchandise: https://store.dftba.com/collections/numberphile
Views: 1051806 Numberphile
Passwords^12 - Hashing algorithms: the good, the bad, and the fail
 
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This is the first talk given by Steve Thomas (@Sc00bzT) at the Passwords^12 security conference, held at the University of Oslo, Norway, on December 3-5, 2012. Slides and downloadable video files are available at our media archive: http://passwords12.at.ifi.uio.no/
Views: 820 Per Thorsheim
Ethical Hacking - Encryption Algorithm
 
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Ethical Hacking - Encryption Algorithm watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Sharad Kumar, Tutorials Point India Private Limited
How to securely hash passwords in PHP
 
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Access the full course ➤ https://daveh.io/r/ytmvca From the course "Build a Complete Registration and Login System using PHP MVC". The most secure way to store passwords in the database in PHP is to use a salted hash. How do we do that in PHP?
Views: 1483 Dave Hollingworth
PHP Security And Password Hashing Tutorial - Register & Login Form
 
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PHP Password Hashing Tutorial Made Easy! Download Source Code: http://codingpassiveincome.com/php-password-hashing It is PHP Security Tutorial For Beginners. In this tutorial you will learn how to: - create a registration form with Bootstrap design - create secure password hash using a password_hash function - store password hash to the database - create a login form with Bootstrap design - verify stored hashing passwords using a password_verify function Also, I will talk about password hashing and encryption techniques. Subscribe: http://bit.ly/1VdATVr Blog: http://CodingPassiveIncome.com/blog Resources: http://CodingPassiveIncome.com/resources Facebook Community: http://on.fb.me/1nMGVC4 Facebook Fan Page: https://www.facebook.com/CodingPassiveIncome Twitter: https://twitter.com/SenaidBacinovic Music: http://www.bensound.com/royalty-free-music
Views: 18458 Coding Passive Income
Don't encrypt passwords
 
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Encryption passwords is bad. Try hashing them with a little bit of salt on top. Confused about the terminology - maybe i can clear your confusion with the use of a shoe, a box and a pen & paper. Don't forget to like the video if its been of any use to you. As always, I'm easy to stalk. www.J4vv4D.com Facebook.com/J4vv4D twitter: @J4vv4D youtube.com/infoseccynic
Views: 55345 J4vv4D
MYSQL Database Encryption
 
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I made this video for my database class at Full Sail. In it I talk about some basic salt usage and the built in aes_decrypt and aes_encrypt functionality of MYSQL.
Views: 13137 Tom Devaney
Salting Passwords
 
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The Web page is here: http://asecuritysite.com/encryption/opensslp
Views: 1394 Bill Buchanan OBE