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Lecture 21 (update): SHA-3 Hash Function by Christof Paar
 
01:38:17
For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com
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: 442039 Computerphile
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: 69384 MIT OpenCourseWare
What is a SHA-256 Cryptographic Hash Algorithm?
 
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In this video, I answer a question from one of the viewers of my YouTube channel YouTube.com/GeorgeLevy : What is a SHA-256 Cryptographic Hash Algorithm? Learn more about blockchain, and Bitcoin on my online video course Blockchain and Bitcoin Fundamentals at: http://BlockchainandBitcoinFundamentals.com Sign up to receive George Levy's FREE email newsletter and a video email course on blockchain, Bitcoin and cryptocurrency ($47 Value yours free) at: https://GeorgeLevy.com/Free Subscribe to this channel to stay up to date on new educational videos published each Thursday! Follow George Levy at the following links: https://GeorgeLevy.com (George Levy Website) https://Twitter.com/GeorgeLevy https://Facebook.com/GeorgeLevyBlockchain (Official Facebook Page) Special offer for George Levy channel viewers, open a new Bitcoin wallet for Free and get $10 bonus in Bitcoin at: https://blockchaininformer.com/btcwallet
Views: 7998 George Levy
DEF CON 25 Crypto and Privacy Village - David Wong - SHA 3 vs The World
 
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Since Keccak has been selected as the winner of the SHA-3 competition in 2012, a myriad of different hash functions have been trending. From BLAKE2 to KangarooTwelve we'll cover what hash functions are out there, what is being used, and what you should use. Extending hash functions, we’ll also discover STROBE, a symmetric protocol framework derived from SHA-3.
Views: 2463 DEFCONConference
Lecture 21: SHA-1 Hash Function by Christof Paar
 
01:18:35
For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com
Lecture 20: Hash Functions by Christof Paar
 
01:05:04
For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com
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: 220248 Khan Academy
Applied Cryptography: Hash Functions - Part 1
 
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This video gives a general idea on what hash functions are and their uses. It also describes a use of hash functions for a digital signature protocol.
Views: 27271 Leandro Junes
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-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: 66735 Last moment tuitions
Security Snippets: SHA-3
 
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The tutorial is here: http://www.asecuritysite.com/Encryption/sha3
Views: 6648 Bill Buchanan OBE
SHA-3
 
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SHA-3 SHA-3 (Secure Hash Algorithm 3), a subset of the cryptographic primitive family Keccak (/ˈkætʃæk/, or /kɛtʃɑːk/), is a cryptographic hash function designed by Guido Bertoni, Joan Daemen, Michaël Peeters, and Gilles Van Assche, building upon RadioGatún.SHA-3 is a member of the Secure Hash Algorithm family. =======Image-Copyright-Info======== License: Creative Commons Attribution 3.0 (CC BY 3.0) LicenseLink: http://creativecommons.org/licenses/by/3.0 Author-Info: © 2007-2009 Guido Bertoni, Joan Daemen, Michaël Peeters and Gilles Van Assche Image Source: https://en.wikipedia.org/wiki/File:SpongeConstruction.svg =======Image-Copyright-Info======== -Video is targeted to blind users Attribution: Article text available under CC-BY-SA image source in video https://www.youtube.com/watch?v=EM3QiJq93Vk
Views: 5888 WikiAudio
The cryptographic hash function BLAKE
 
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The cryptographic hash function BLAKE Animation overview/visualization of how the hash function works Originally here: www.youtube.com/watch?v=PgpJNRnx6eY not sure why this was removed as its a great animation showing how the hash function works Full credits goes to the author(s) which are listed in the animation "BLAKE is one of the five hash functions in the final of the NIST SHA-3 Competition. BLAKE is one of the simplest designs to implement, and relies on previously analyzed components: the HAIFA structure and the ChaCha core function." https://131002.net/blake/ *Copyrights - Thought to be originally released as Public domain and used here in Fair Use
Views: 6556 Blue Dragon
How Does SHA-1 Work - Intro to Cryptographic Hash Functions and SHA-1
 
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Learn more advanced front-end and full-stack development at: https://www.fullstackacademy.com SHA-1 stands for Secure Hash Algorithm 1, a cryptographic hash function developed by the NSA that can be used to verify that a file has been unaltered. In this video, we go over the basic features and common implementations of cryptographic hash functions before diving into the inner workings of a Javascript implementation of the SHA-1 function. Although out of use now, walking through the hash function code provides valuable insight into how these algorithms work. Watch this video to learn: - What are Cryptographic Hash Functions - Practical uses for Cryptographic Hash Functions - How does SHA-1 work
Views: 10313 Fullstack Academy
NETWORK SECURITY - SHA 512 (AUTHENTICATION ALGORITHM)
 
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SHA 512 (SECURE HASH ALGORITHM) 1) PAD WITH THE BITS 100..... UNTIL LENGTH OF PLAIN TEXT REACHES 128 LESS THAN MULTIPLE OF 1024 BITS 2) APPEND 128 BIT REPRESENTATION OF ORIGINAL PLAIN TEXT MESSAGE SO THAT LENGTH EQUALS TO MULTIPLE OF 1024 3) INITIALIZE 8 BUFFERS OF SIZE 64 BITS EACH TO STORE INTERMEDIATE RESULTS AND FINAL HASH CODE. 4) PROCESS EACH 1024 BIT BLOCK IN 80 ROUNDS. 5) OUTPUT IN BUFFERS IS THE 512 BIT HASH CODE
IOTA tutorial 8: Cryptographic sponge construction
 
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If you like this video and want to support me, go this page for my donation crypto addresses: https://www.youtube.com/c/mobilefish/about This is part 8 of the IOTA tutorial. In this video series different topics will be explained which will help you to understand IOTA. It is recommended to watch each video sequentially as I may refer to certain IOTA topics explained earlier. In 2007, the sponge construction was introduced by Guido Bertoni and others. A sponge construction or sponge function takes input bit data of any length (message) and produce an output bit data of any desired length (hash digest). Simply said, the data is "absorbed" into the sponge, then the result is "squeezed" out.  The sponge function has two phases, the absorbing phase in which the message is compressed iteratively followed by the squeezing phase in which the hash digest is extracted in a iterative manner. A sponge function has three components: A state memory (S) which is divided into two sections: one of size r (the bitrate) and the other of size c (the capacity). For simplicity sake in this video the capacity will be complete ignored. A compression function (f) of fixed length that transforms the state memory. IOTA uses the Keccak-384 hash algorithm as its compression function. Please note this Keccak-384 hash algorithm does not comply with the standardised SHA3-384 as defined by the National Institute of Standards and Technology (NIST). A padding function (pad) which appends enough bits to the input data (M) so that the length of the padded input is a whole multiple of the bitrate r. The padded input can thus be broken into r-bit blocks. The sponge function operates as follows, starting with the absorbing phase: The state memory S is initialised to zero. The padded input is broken into r-bit blocks and called M0, M1, M2, etc. The r-bit block is XORed with the first message block M0 and the result is passed to the compression function f. The function stores its result in the state memory S. The updated r-bit block is XORed with the second message block M1 and the result is passed to function f. Again function f stores its result in the state memory S. The process is repeated until all message blocks M0, M1, M2 etc. are used up. The sponge function squeezing phase, to create the hash digest is as follows: The r-bit block of the state memory is the first r bits of output (Z0). If more output bits are desired the r-bit block is passed to function f. Function f stores its result in the state memory S. The r-bit block of the state memory is the next r bits of output (Z1). The process is repeated until the desired number of output bits are produced. The concatenated values Z0, Z1, Z2, etc, forms the hash digest. If the output length is not a multiple of r bits, it will be truncated. More information about the sponge construction: https://keccak.team/sponge_duplex.html Check out all my other IOTA tutorial videos: https://goo.gl/aNHf1y Subscribe to my YouTube channel: https://goo.gl/61NFzK The presentation used in this video tutorial can be found at: https://www.mobilefish.com/developer/iota/iota_quickguide_tutorial.html #mobilefish #howto #iota
Views: 3455 Mobilefish.com
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: 5167 Mighty Ghost Hack
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
Views: 52363 Hacks And Security
Hashing & Cryptographic Hash Functions - Explained
 
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Medium: https://medium.com/@benjaminhall/ Telegram: /cryptocatchup Twitter: /crypto_catchup Website: https://cryptocatchup.com Linkedin - https://www.linkedin.com/in/benjamin-hall-760b9891/ (Professional Connections Only) Beginners Exchange Coin Spot - 50+ Coins https://www.coinspot.com.au?affiliate=8M3RL Binance (Biggest in world!) https://www.binance.com/?ref=10801098 Please fill out the contact form there if you or your business would like to get in touch. I would love to see some more engagement around speaking opportunities. ETHLEND Do you have a token portfolio and need to unlock some of that liquidity you have lying around in your tokens? Place a loan request by installing Metamask and browsing to the decentralized application. https://app.ethlend.io/ Disclaimer: The information from Benny and any other Crypto Catch Up affiliate/member is for informational purposes only. It should not be considered legal or financial advice. You should consult with a financial professional to determine what may be best for your individual needs. I don't make any guarantees or other promises as to any results that may be obtained from using my content/advice. No one should make any investment decision without first consulting his or her own financial adviser and conducting his or her own research and due diligence. All videos posted are the opinion of Crypto Catch Up only and not that of any other company that Crypto Catch Up may be in party with.
Views: 259 Crypto Catch Up
Message Digest and Digital Signature | Cryptographic Hash Function
 
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This video lecture is produced by S. Saurabh. He is B.Tech from IIT and MS from USA. Message Digest and Digital Signature To study interview questions on Linked List watch http://www.youtube.com/playlist?list=PL3D11462114F778D7&feature=view_all To prepare for programming Interview Questions on Binary Trees http://www.youtube.com/playlist?list=PLC3855D81E15BC990&feature=view_all To study programming Interview questions on Stack, Queues, Arrays visit http://www.youtube.com/playlist?list=PL65BCEDD6788C3F27&feature=view_all To watch all Programming Interview Questions visit http://www.youtube.com/playlist?list=PLD629C50E1A85BF84&feature=view_all To learn about Pointers in C visit http://www.youtube.com/playlist?list=PLC68607ACFA43C084&feature=view_all To learn C programming from IITian S.Saurabh visit http://www.youtube.com/playlist?list=PL3C47C530C457BACD&feature=view_all
Views: 12130 saurabhschool
"SHA-3 vs the World" - David Wong
 
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Since Keccak has been selected as the winner of the SHA-3 competition in 2012, a myriad of different hash functions have been trending. From BLAKE2 to KangarooTwelve we'll cover what hash functions are out there, what is being used, and what you should use. Extending hash functions, we’ll also discover STROBE, a symmetric protocol framework derived from SHA-3 Slides can be found here: https://www.owasp.org/images/f/f5/OWASPLondon20171123_SHA3_vs_the_world.pdf Speaker Bio: David Wong (@lyon01_david) David Wong is a Security Consultant at the Cryptography Services practice of NCC Group. He has been part of several publicly funded open source audits such as OpenSSL and Let's Encrypt. He has conducted research in many domains in cryptography, publishing whitepapers and sharing results at various conferences including DEF CON and ToorCon as well as giving a recurrent cryptography course at Black Hat. He has contributed to standards like TLS 1.3 and the Noise Protocol Framework. He has found vulnerabilities in many systems including CVE-2016-3959 in the Go programming language and a bug in SHA-3's derived KangarooTwelve reference implementation. Prior to NCC Group, David graduated from the University of Bordeaux with a Masters in Cryptography, and prior to this from the University of Lyon and McMaster University with a Bachelor in Mathematics. This talk was presented at OWASP London Chapter Meeting (meetup) on 23-Nov-2017 hosted by The Telegraph. Follow OWASP London on Twitter: @owasplondon
Views: 430 OWASP London
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 Thread for Q&A questions: http://3b1b.co/questions 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 a 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: 950470 3Blue1Brown
SHA 1, SHA 224, SHA 256, SHA 384, SHA 512 Hashing - Cryptography with Python
 
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This tutorial explains how to create a hash using all the different versions of the SHA cryptographic algorithm.
Views: 149 ma academy
Java Tutorial - Hash functions (MD2, MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512)
 
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This video cover hash functions in Java (MD2, MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512). Please upvote & subscribe and visit https://www.facebook.com/tuts4java on facebook. Like & share :)
Views: 10750 Zoran Davidović
NETWORK SECURITY - TYPES OF AUTHENTICATION (Message Encryption, MAC, Hash Functions)
 
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Three types of Authentications 1. Message Encryption 2. Message Authentication Code 3. Hash Functions.
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: 744878 Computerphile
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: 26922 Udacity
Bitcoin - Cryptographic Hash Functions
 
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Cryptographic Hash Functions - Bitcoin and Cryptocurrency Technologies Part 1 - Introduction to Crypto and Cryptocurrencies Learn about cryptographic building blocks ("primitives") and reason about their security. Work through how these primitives can be used to construct simple crypto currencies.
Views: 1629 intrigano
Cryptography and Network Security - Hash Functions - GATE Computer Science
 
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The complete YouTube playlist can be viewed here: https://goo.gl/mjyDev This lesson explains the concept of the Hash Functions, under the course, "Cryptography and Network Security for GATE Computer Science Engineering". The lesson explains the questions on the following subtopics: Hash Functions Hash Functions - Method 1 to 6 Some important terminology and concepts are also illustrated, for the better understanding of the subject. For the entire course: https://goo.gl/aTMBNZ For more lessons by Ansha Pk: https://goo.gl/2DX9Wn Must watch for all the GATE/ESE/PSU Exams. Download the Unacademy Learning App from the Google Play Store here:- https://goo.gl/02OhYI Download the Unacademy Educator app from the Google Play Store here: https://goo.gl/H4LGHE Do Subscribe and be a part of the community for more such lessons here: https://goo.gl/UGFo7b Visit Our Facebook Group on GATE here: https://goo.gl/cPj5sb Cryptography and Network Security - Hash Functions - GATE Computer Science
SHA-1 Algorithm ( Cryptography & Network Security)
 
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Prof.V.Bibin Christopher Department of CSE Ponjesly College of Engineering
Views: 24165 ponjesly cse
CSE571-11-11: Cryptographic Hash Functions
 
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Audio/Video Recording of Professor Raj Jain's class lecture on Cryptographic Hash Functions. It covers Hash Function, Cryptographic Hash Functions, Applications of Crypto Hash Fn, Birthday Problem, Probability of Hash Collisions, Hash Function Cryptanalysis, Block Ciphers as Hash Functions, Secure Hash Algorithm (SHA), SHA-1 Algorithm, SHA-2, SHA-512 SHA-512 Round Function, 80-Word Input Sequence, SHA-3, SHA-3 Requirements
Views: 7680 Raj Jain
C# Hashing with salt using SHA-256, SHA-384, SHA-512
 
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In this tutorial I will show You how to use SHA-256, SHA-384, SHA-512 hashing in C# and compare text to hash, to see if the hash represents the text. Sorry for the poor quality microphone though :/ Source code: https://drive.google.com/file/d/0BxW01l6w6JYfUVViQUNaYjZicmc/view?usp=sharing
Views: 18770 Dawisko1
SHA-2 Cryptographic Hash Function
 
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For clearer illustrations, a .ppsx file (ppt slide show with narration) can be accessed at https://www.dropbox.com/s/j7k4c5nm3zgezp2/ppsxABU_SHA2_Presentation.ppsx
Views: 15696 Patricia Angela Abu
How Does SHA256 Work?
 
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Since SHA1 has been broken, SHA256 is seen as one of the contenders to replace it. In this video I review why it might be needed and how it functions on a low and high level perspective by stepping through the algorithm with an example by converting abc to its digest. I did a similar explanation for SHA1 in another video so check that out. Ill also be doing some supplementary videos on the binary math...ill be having some fun with them :D Music Title Olympus by Ross Bugden https://www.youtube.com/watch?v=BnmglWHoVrk https://creativecommons.org/licenses/by/4.0/ Clips used One Piece film z - Eiichiro Oda, Tatsuya Nagamine Avatar the last Air Bender - Joaquim Dos Santos,Michael Dante DiMartino,Bryan Konietzko Ghost Pain - Masahiko Murata, Kazuchika Kise Terminator Genysis - Alan Taylor,Bill Carraro,Megan Ellison Phantasy Star Online - Keiichirô Kawaguchi,Kyohei Ito One Piece - Kōnosuke Uda, Eiichiro Oda,Alfred Kahn,Toei Animation,Yoshihiro Suzuki Animatrix- Peter Chung, Andrew R. Jones,Mahiro Maeda,Joel Silver The Matrix Reloaded - Lana Wachowski (as The Wachowski Brothers), Lilly Wachowski (as The Wachowski Brothers),Bruce Berman Bleach - Tite Kubo, TV Tokyo, Dentsu and Studio Pierrot Boruto: Naruto Next Generations - Noriyuki Abe and Hiroyuki Yamashita Samurai Champloo - Shinichirō Watanabe,Takatoshi Hamano,Takashi Kochiyama,Tetsuro Satomi
Views: 31842 EpicFactFind
Generating MD5, SHA hash in java
 
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This video demonstrate the use of MD5 hashing and SHA hash in Java. http://www.examsmyantra.com/article/101/java/using-md5-or-sha-hashing-in-java
Views: 14289 examsmyantra
Five* non-cryptographic hash functions enter. One hash function leaves.
 
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Adam Harvey https://linux.conf.au/schedule/30208/view_talk When you say “hash function” in a room full of developers, people tend to think of the classics: MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, SHA-OHGODPLEASESTOP, and the like — cryptographic hash functions intended for cryptographic uses. There’s another world out there, though: non-cryptographic hashes. Sometimes you just need to figure out if you’ve already seen a string or structure. Sometimes you need a basic checksum. Sometimes you need a hash that’s just fast and can fit into a 32 bit integer. I’ll run through the state of the art in the world of non-cryptographic hashing — what your best options are, how they compare in terms of CPU and memory usage, and how they work. Who takes it? Whose mixing function reigns supreme? Let’s find out. * I’m saying “five”, but realistically I’m going to cover as many modern options as I can fit into the time available. Let’s say “five plus or minus two” in reality.
SHA – Secure Hash Algorithm in Hindi - Properties, Working, Comparison b/w SHA and MD5
 
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SHA Introduction, SHA Properties, Working of SHA, Comparison between MD5 and SHA #CNS Lectures in Hindi
Password Hashing, Salts, Peppers | Explained!
 
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---------------------------------------------------------------------------------------------- Check out my site: http://www.seytonic.com Follow me on twitter: https://twitter.com/seytonic
Views: 57655 Seytonic
Portfolio of optimized cryptographic functions based on Keccak
 
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by Gilles Van Assche At: FOSDEM 2017 Since its adoption as the SHA-3 standard, Keccak has grown out of the merehashing functionality. We present a consistent set of cryptographic functions,for fast hashing, pseudo-random bit generation, authentication orauthenticated encryption, that enjoy very competitive safety margin vs speedratios. We highlight the bases for the security of these functions and diveinto their software implementations. Beyond the FIPS 202 standard functions derived from Keccak (i.e., SHA-3 hashfunctions and SHAKE{128,256} extendable output functions), we present severalinteresting proposals, consistently based on the same permutation or its roundfunction. Among others: * For authenticated encryption, Ketje and Keyak are schemes that were selected for the third round of the [CAESAR competition](http://competitions.cr.yp.to/caesar-submissions.html). In particular, Keyak proposes interesting features when protecting a stream of data flowing on a network. It exploits the parallelism in modern processors to achieve a high throughput. * [KangarooTwelve](http://eprint.iacr.org/2016/770.pdf) is a recently published arbitrary-output-length hash function. We designed it so that the implementation can automatically adapt to the available degree of parallelism. On Intel's Haswell and Skylake architectures, it achieves a speed below 1.5 cycles/byte for long inputs. Two key aspects will be covered. First, the essential goal of these functions is to remain secure despiteadvances in cryptanalysis. We will explain explain how we base the security ontwo strong pillars: the track record of third-party cryptanalysis and thegeneric security of the underlying construction. Second, we will explore the [Keccak CodePackage](https://github.com/gvanas/KeccakCodePackage) and its two-levelstructure. The high-level cryptographic services are implemented in plain C,without any specific optimizations. The low-level services implement thepermutations and the state input/output functions, for which we provideoptimized code for different platforms. Another interesting topic to discussis how the parallelism is exploited on modern processors with SIMD units. Room: Janson Scheduled start: 2017-02-05 09:00:00
Views: 71 FOSDEM
Cryptographic Hash Functions: Part 1
 
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Cryptographic Hash Functions Applications of Crypto Hash Functions Birthday Problem Secure Hash Algorithm (SHA)
Views: 8909 Scholartica Channel
NETWORK SECURITY - MD5 ALGORITHM
 
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The MD5 algorithm is a widely used hash function producing a 128-bit hash value. Step 1. Append Padding Bits. The message is "padded" (extended) so that its length (in bits) is congruent to 448, modulo 512. ... Step 2. Append Length. ... Step 3. Initialize MD Buffer Step 4. Process Message in 16-Word Blocks. ... Step 5. Output.
SHA Algorithm Explained
 
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In this video, following topics covered: 1. Hash Function 2. SHA family 3. SHA-1 4. Sha-2 Website: http://www.allabouttesting.org Please share and subscribe this video Disclaimer: This video is for educational purpose only. Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.
Views: 2369 All About Testing
Vorlesung 22: Keccak und der SHA-3 von Christof Paar
 
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Für Folien, Aufgaben und weiteres Lernmaterial zur Kryptographie besuchen Sie http://www.crypto-textbook.de/
VLSI Implementations of the Cryptographic Hash Functions MD6
 
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A public competition organized by the NIST recently started, with the aim of identifying a new standard for cryptographic hashing (SHA-3).Besides a high security level,candidate algorithms should show good performance on various platforms.While an average performance on high-end processors is generally not critical, implementability and flexibility in hardware is crucial, because the new standard will be implemented in a variety of lightweight devices.This project investigates VLSI architectures of the SHA-3 candidates MD6.The fastest circuit is the 16×parallel MD6 core,reaching 16.3 Gbps at a complexity of 69.8k gate equivalents (GE) on ASIC and 8.4 Gbps using 4465 Slices on FPGA. However,large memory requirements preclude the application of MD6 to resource-constrained systems.
Views: 418 VERILOG COURSE TEAM

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