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Python Random Number Generator: the Random Module  ||  Python Tutorial  ||  Learn Python Programming
 
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To generate random numbers in Python, you use the Random Module. This contains functions for generating random numbers from both continuous and discrete distributions. In this video, we will cover the key random number generators. ➢➢➢➢➢➢➢➢➢➢ To learn Python, you can watch our playlist from the beginning: https://www.youtube.com/watch?v=bY6m6_IIN94&list=PLi01XoE8jYohWFPpC17Z-wWhPOSuh8Er- ➢➢➢➢➢➢➢➢➢➢ We recommend: Python Cookbook, Third edition from O’Reilly http://amzn.to/2sCNYlZ The Mythical Man Month - Essays on Software Engineering & Project Management http://amzn.to/2tYdNeP Shop Amazon Used Textbooks - Save up to 90% http://amzn.to/2pllk4B ➢➢➢➢➢➢➢➢➢➢ Subscribe to Socratica: http://bit.ly/1ixuu9W To support more videos from Socratica, visit Socratica Patreon https://www.patreon.com/socratica Socratica Paypal https://www.paypal.me/socratica We also accept Bitcoin! :) Our address is: 1EttYyGwJmpy9bLY2UcmEqMJuBfaZ1HdG9 ➢➢➢➢➢➢➢➢➢➢ Python instructor: Ulka Simone Mohanty Written & Produced by Michael Harrison FX by Andriy Kostyuk
Views: 62862 Socratica
Python Advanced Tutorial 10 - PyCrypto
 
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This is a tutorial on PyCrypto, looking at encrypting and decrypting files using AES-256. All Links and Slides will be in the description. Subscribe for more cool stuff! Block Cipher Modes - http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation Slides & files - https://www.mediafire.com/folder/b4om18885dp0k/Tutorial_10_-_PyCrypto Python - http://python.org/ Ubuntu - http://www.ubuntu.com/ DrapsTV Twitter - https://twitter.com/DrapsTV If you like what you see be sure to subscribe and thumbs up!
Views: 41298 DrapsTV
Python Basics Random Seed Method
 
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Learn how to use the seed method from the python random module. Seed method is a tool to test repeat ability with data modules in data science
Views: 99 Python Basics
Python Encryption Tutorial with PyCrypto
 
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Sentdex.com Facebook.com/sentdex Twitter.com/sentdex How to use python to encrypt sensitive information, and later decrypt it, using PyCrypto! PyCrypto: https://www.dlitz.net/software/pycrypto/ The Code: http://sentdex.com/sentiment-analysisbig-data-and-python-tutorials/encryption-and-decryption-in-python-code-example-with-explanation/
Views: 73906 sentdex
Python Quick Tip: Hiding Passwords and Secret Keys in Environment Variables (Mac & Linux)
 
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In this Python Programming Tutorial, we will be learning how to hide passwords and secret information within environment variables on Mac and Linux machines. Hard-coding secret information is a common mistake that beginners make when learning Python. Hiding this information within environment variables allows you to access your secret information within your code without anyone else being able to see these values from your source code. Let's get started... The code from this video can be found at: https://github.com/CoreyMSchafer/code_snippets/tree/master/Python/Python-Environment-Variables Python Environment Variables (Windows): https://youtu.be/IolxqkL7cD8 If you enjoy these videos and would like to support my channel, I would greatly appreciate any assistance through my Patreon account: https://www.patreon.com/coreyms Or a one-time contribution through PayPal: https://goo.gl/649HFY If you would like to see additional ways in which you can support the channel, you can check out my support page: http://coreyms.com/support/ You can find me on: My website - http://coreyms.com/ Facebook - https://www.facebook.com/CoreyMSchafer Twitter - https://twitter.com/CoreyMSchafer Google Plus - https://plus.google.com/+CoreySchafer44/posts Tumblr - https://www.tumblr.com/blog/mycms
Views: 7066 Corey Schafer
Python Tips and Tricks:  Every Python Programmer Must Know
 
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Here are some cool tips and tricks which is used while making a project or program. 10. Adding 2 list : for this you just have to create 2 list and then combine them in 2 variables. i.e. a=[1,2,3] b=[4,5,6] then c=a+b. Now c can hold 2 list. 9: Calendar: In this trick you can print calendar according to calendar format like import calendar then print calendar.month(2017,1) you can also pass variable to it according to your format. 8: Swap: In other languages you have to write multiple lines of code for it but in Python you can just do it by single line i.e a,b=b,a that's the beauty of python. 7: List: In python you can convert any string into list by using list function i.e a='abcd' then a=list(a). If your list contains integer values then just convert it by using str() function i.e a=123 then a=str(a) now you can convert it into list. 6: Join: You can join list elements by using join function i.e. ''.join(msg) also if you pass any value within '' then it join with all elements. 5: Date Time: This is the essential thing for programmer to show it any project or program just import datetime module and call the function and print it (by watching the video) also you can change the format of it %d for date, %m for month, %y for year, %I for hour, %M for minute, %s for second, %p for 12 hour. 4. Random : using random function is essential in making games, cryptography,projects etc , in python import random module and select your random value via random.choice(variable). You can also select list or any type of value. 3: Color : A program can become more attractive if it has a beautiful color in it. Just import os module and put os.system('color A') and set color according to you. Color code in os are: 0: black 1: blue 2: green 3: aqua 4: red 5: purple 6: yellow 7:white 8: gray 9: light blue A: light green B: light aqua C: light red D: light purple E: light yellow F: Bright white 2: Compress: Sometimes you have to compress your messages or values in your program, by python you can do it eaisly, Just import zlib module and pass your message in zlib.compress(msg), it compress your msg, to decompress just use zlib.decompress(msg) to decompress it. 1: Message Box: To make a program user friendly, this is very useful, just import ctypes and write ctypes.windll.user32.MessageBoxA(0,'Your Message','Message title',0) here 0 is for ok button. You can also use tkinter but i like this though. So guys that's all in this video. Hope you like it . Thumbs up if you like it and subscribe to get more new stuff.
Views: 3080 sandeep pushp
RC4 in Python
 
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implementing RC4 in Python Key-scheduling algorithm (KSA) Pseudo-random generation algorithm (PRGA)
Views: 165 kareem ahmed
How to Predict Stock Prices Easily - Intro to Deep Learning #7
 
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We're going to predict the closing price of the S&P 500 using a special type of recurrent neural network called an LSTM network. I'll explain why we use recurrent nets for time series data, and why LSTMs boost our network's memory power. Coding challenge for this video: https://github.com/llSourcell/How-to-Predict-Stock-Prices-Easily-Demo Vishal's winning code: https://github.com/erilyth/DeepLearning-SirajologyChallenges/tree/master/Image_Classifier Jie's runner up code: https://github.com/jiexunsee/Simple-Inception-Transfer-Learning More Learning Resources: http://colah.github.io/posts/2015-08-Understanding-LSTMs/ http://deeplearning.net/tutorial/lstm.html https://deeplearning4j.org/lstm.html https://www.tensorflow.org/tutorials/recurrent http://machinelearningmastery.com/time-series-prediction-lstm-recurrent-neural-networks-python-keras/ https://blog.terminal.com/demistifying-long-short-term-memory-lstm-recurrent-neural-networks/ Please subscribe! And like. And comment. That's what keeps me going. Join other Wizards in our Slack channel: http://wizards.herokuapp.com/ And please support me on Patreon: https://www.patreon.com/user?u=3191693 music in the intro is chambermaid swing by parov stelar Follow me: Twitter: https://twitter.com/sirajraval Facebook: https://www.facebook.com/sirajology Instagram: https://www.instagram.com/sirajraval/ Instagram: https://www.instagram.com/sirajraval/
Views: 392993 Siraj Raval
Random Number Generator
 
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Random Number Generator :))
Views: 561 Chainerlt
Python - Password Hashing Script
 
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A small tutorial on how to use the 'hashlib' library in Python to create a script that hashes the users password.
Views: 5073 NuclearFish
Python code audit of a firmware update - 34C3 CTF software_update (crypto) part 1/2
 
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This challenge from the 34C3 CTF implemented a software update in python. In part 1/2 we try to understand the code and think about possible attacks. software_update: https://archive.aachen.ccc.de/34c3ctf.ccc.ac/challenges/index.html What is CTF? https://www.youtube.com/watch?v=8ev9ZX9J45A Why you should play CTFs: https://www.youtube.com/watch?v=rfjV8XukxO8 tools: python, telnet, nc, cat, pbcopy, openssl, factordb.com, sublime, pycrypto -------------------------------------- Twitter: https://twitter.com/LiveOverflow Website: http://liveoverflow.com/ Subreddit: https://www.reddit.com/r/LiveOverflow/ Facebook: https://www.facebook.com/LiveOverflow/
Views: 20743 LiveOverflow
python: random: seed
 
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generate crypto-grade seeds for pseudo-random numbers in python
Views: 2578 AskFrank15
Random numbers in Python
 
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This tutorial shows you how to import the random module and then use it to select two random numbers. These numbers are then assigned to variables and added together.
Views: 714 Mr_Wemyss
SIMPLE Vigenere Cipher in Python
 
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Very easy tutorial on how to code a simple Vigenere Cipher in python. How to generate random keys: https://youtu.be/bZqB8YHQEF8 A good exercise for programming beginners. Subjects covered in the video: List comprehension Deques and the collections module Strings and the translate method Try clauses and exceptions Functions
Views: 3224 GrungySponge
Let's Code Python: random
 
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Let's work with the random module. I mean, not a random one. It's specifically random. THE random. Just watch.
Views: 57 TigerhawkT3
Jair Trejo - Non Sequitur: An exploration of Python's random module
 
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Jair Trejo - Non Sequitur: An exploration of Python's random module [EuroPython 2014] [24 July 2014] An exploration of Python's random module for the curious programmer, this talk will give a little background in statistics and pseudorandom number generation, explain the properties of python's choice of pseudorandom generator and explore through visualizations the different distributions provided by the module. ----- # Audience Non mathematical people who wants a better understanding of Python's random module. # Objectives The audience will understand pseudorandom number generators, the properties of Python's Mersenne Twister and the differences and possible use cases between the distributions provided by the `random` module. # The talk I will start by talking about what randomness means and then about how we try to achieve it in computing through pseudorandom number generators (5 min.) I will give a brief overview of pseudorandom number generation techniques, show how their quality can be assessed and finally talk about Python's Mersenne Twister and why it is a fairly good choice. (10 min.) Finally I will talk about how from randomness we can build generators with interesting probability distributions. I'll compare through visualizations thos provided in Python's `random` module and show examples of when they can be useful in real-life. (10 min.)
Pseudorandom number generators | Computer Science | Khan Academy
 
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Random vs. Pseudorandom Number Generators Watch the next lesson: https://www.khanacademy.org/computing/computer-science/cryptography/modern-crypt/v/the-fundamental-theorem-of-arithmetic-1?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Missed the previous lesson? https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/perfect-secrecy?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Computer Science on Khan Academy: Learn select topics from computer science - algorithms (how we solve common problems in computer science and measure the efficiency of our solutions), cryptography (how we protect secret information), and information theory (how we encode and compress information). About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Computer Science channel: https://www.youtube.com/channel/UC8uHgAVBOy5h1fDsjQghWCw?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 147672 Khan Academy Labs
Bitcoin Technical Analysis 01/03/2018 - Why Is TA Not Random Numbers
 
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Thank you all so much for watching the video and hope you guys find the information helpful. Bitcoin is still trading along its long term trendline and is looking to be on a C wave of a ABC correction. Possible buying zones are between $9900 to $10200. Feel free to comment below what do you think will happen to BTC and the Crypto market in the short term. I will be doing a giveaway when i reach 500 and 1000 subscribers. If you find the video informative, please give me a like and subscribe for future videos. ---------------------------------------------------------------------------------------------------------- Follow me on twitter and Steemit for daily crypto news and updates: https://twitter.com/Crypto__Will https://steemit.com/@crypto-will Best place to trade Altcoins? My choice is Binance: https://www.binance.com/?ref=12815501 Donation: BTC: 1FurheTHrGtnmbx9hcEY2WNJAW9Xsh7CaS ETH/ERC20: 0x3E654877e7B60152817995010C587Ed4216f3939 Disclaimer: Statements on this site only represent opinions of myself and are not financial advices. The information on this site is provided for discussion purposes only, Under no circumstances does this information represent a recommendation to buy or sell securities.
Views: 278 Crypto Will
Coding Math: Episode 51 - Pseudo Random Number Generators Part I
 
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Back to School Special. This short series will discuss pseudo random number generators (PRNGs), look at how they work, some algorithms for PRNGs, and how they are used. Support Coding Math: http://patreon.com/codingmath Source Code: https://jsbin.com/nifutup/1/edit?js,output Earlier Source Code: http://github.com/bit101/codingmath
Views: 19139 Coding Math
Caesar Cipher Encryption and Decryption in Python
 
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Ceasar Cipher in Python Hi!! In this video I'll be doing ceasar cipher encryption and decryption using Python Caesar Cipher is subsitution cipher, its algorithm is as following: - Take alphabetic message (A to Z) - Take a key (1 to 26) (1 being A and 26 being Z) - To encrypt, left-shift or right-shift message letter by letter by the value of key For example if message is "ABC" and key is 1 and we are performing right-shift then encrypted text will be A+1 = B, B+1 = C, C+1 = D. ABC = BCD, BCD being encrypted text. - To decrypt, left-shift or right-shift the message letter by letter opposite to the shift performed in encryption by the value of key For example if encrypted text is "BCD" and key is 1 and we are performing left-shift then encrypted text will be B-1 = A, C-1 = B, D-1 = C. BCD = ABC, ABC being decrypted text.
Views: 1371 VoxelPixel
Python Programming Tutorial | Random Numbers in Python | GeeksforGeeks
 
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Find Complete Code at GeeksforGeeks Article: http://www.geeksforgeeks.org/random-numbers-in-python/ This video is contributed by Parikshit Kumar Pruthi Please Like, Comment and Share the Video among your friends. Follow us on Facebook: https://www.facebook.com/GfGVideos/ And Twitter: https://twitter.com/gfgvideos Also, Subscribe if you haven't already! :)
Views: 404 GeeksforGeeks
DES Encryption Using Python 3 - Cryptography with Python
 
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This tutorial explains how to encrypt text using DES in Python 3.
Views: 34 ma academy
Securing Stream Ciphers (HMAC) - Computerphile
 
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Bit flipping a stream cipher could help you hit the Jackpot! But not with HMAC. Dr Mike Pound explains. Correction : "pseudo" is spelled incorrectly on the graphic. 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: 94580 Computerphile
True Random Number Generators - FST-01 - Well Tempered Hacker
 
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Randomness forms the basis of cryptography but computers are deterministic and therefore terrible for generating true randomness. In this episode we'll look at the FST-01, a $35 USB based true random number generator (TRNG) which harvests randomness from the environment. We'll flash the NeuG random number generator software onto the device using a serial programmer and a few wires. Then we'll plug it in, start it up and look at the random data it generates. Hardware: http://www.seeedstudio.com/wiki/FST-01 http://www.seeedstudio.com/depot/s/fst-01.html Software: http://www.gniibe.org/memo/development/gnuk/rng/neug.html #crypto #cryptography #random #randomnumber #geigercounter #cryptography #mouse #pgp #privatekey #flyingstonetiny #FST-01 #randomnumbergenerator #environment #computing #communication #messaging #mail #email
Views: 12006 Anders Brownworth
Python - Random Numbers
 
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In this video, you will learn how to use two different functions from the random library in Python, random() and randint().
Views: 74 Sabrina Wagner
Stock Market Prediction
 
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Can we predict the price of Microsoft stock using Machine Learning? We'll train the Random Forest, Linear Regression, and Perceptron models on many years of historical price data as well as sentiment from news headlines to find out! Code for this video: https://github.com/llSourcell/Stock_Market_Prediction Please Subscribe! And like. And comment. That's what keeps me going. Follow me: Twitter: https://twitter.com/sirajraval Facebook: https://www.facebook.com/sirajology More learning resources: https://www.quantinsti.com/blog/machine-learning-trading-predict-stock-prices-regression/ https://medium.com/@TalPerry/deep-learning-the-stock-market-df853d139e02 https://iknowfirst.com/rsar-machine-learning-trading-stock-market-and-chaos https://www.udacity.com/course/machine-learning-for-trading--ud501 https://quant.stackexchange.com/questions/111/how-can-i-go-about-applying-machine-learning-algorithms-to-stock-markets https://quant.stackexchange.com/questions/111/how-can-i-go-about-applying-machine-learning-algorithms-to-stock-markets http://eugenezhulenev.com/blog/2014/11/14/stock-price-prediction-with-big-data-and-machine-learning/ https://cloud.google.com/solutions/machine-learning-with-financial-time-series-data https://www.linkedin.com/pulse/deep-learning-stock-price-prediction-explained-joe-ellsworth If you're wondering why my voice sounds weird, it's because i was down with Traveler's Diarrhea from my recent trip to India. It's such a debilitating sickness, but the show must go on. And yes, thankfully I'm better now :) Join us in the Wizards Slack channel: http://wizards.herokuapp.com/ And please support me on Patreon: https://www.patreon.com/user?u=3191693 Follow me: Twitter: https://twitter.com/sirajraval Facebook: https://www.facebook.com/sirajology Instagram: https://www.instagram.com/sirajraval/ Instagram: https://www.instagram.com/sirajraval/
Views: 67893 Siraj Raval
RSA Key Generation, Signatures and Encryption using OpenSSL
 
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Demonstration of using OpenSSL to create RSA public/private key pair, sign and encrypt messages using those keys and then decrypt and verify the received messages. Commands used: openssl. Created by Steven Gordon on 7 March 2012 at Sirindhorn International Institute of Technology, Thammasat University, Thailand.
Views: 56082 Steven Gordon
Python Enchant English Dictionary + Caesar Cipher Decryption
 
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GET CODE FREE HERE: http://robotix.com.au/#/videos/105 SOCIAL: Twitter: https://twitter.com/SanjinDedic Facebook Page: https://www.facebook.com/RobotixAu/ LinkedIn: https://au.linkedin.com/in/sanjin-dedic-a028b9113 MINDS: https://www.minds.com/SanjinDedic WEBSITES Techxellent.com.au Robotix.com.au -~-~~-~~~-~~-~- Latest and Best Arduino Playlist in Collaboratio with DFRobot: https://www.youtube.com/playlist?list=PL_92WMXSLe_86NTWf0nchm-EmQIwccEye -~-~~-~~~-~~-~-
Views: 355 Robotix
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: 41963 Seytonic
BLENDERSUSHI / SV Turtle Random Walk Numpy (LIVENODING390)
 
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A slightly more technical live noding to share with my node setup in Sverchok to generate TURTLE RANDOM WALK algorithm. Probably a slightly simplified version, if compared to what you can do using Python and Turtle Module, but this is more node friendly. Original inspiration is from this Think Python 2 Python basic tutorial using Turtle module. http://greenteapress.com/thinkpython2/html/thinkpython2005.html What happens in Sverchok is basically I am showing a setup that is using NumPy cummulative for Vector Positions. You could probably set this up differently, but this is one way to do it. Enjoy! GIST Final: fbca483c51e2b7ad4360ad7606478548 GIST Progress: 5d5a434366bf8693bc1f5fda0ef0067e See also: https://github.com/nortikin/sverchok/issues/933
Views: 226 Jimmy Gunawan
Visual Cryptography
 
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Hiding your images in style since 1994. Copyright Protection Scheme for Digital Images Using Visual Cryptography and Sampling Methods Ching-Sheng Hsu Young-Chang Hou July 2005 RIT, IMGS-362 Image Processing & Computer Vision II
Views: 24233 Matt Donato
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: 754268 SciShow
The one-time pad | Journey into cryptography | Computer Science | Khan Academy
 
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The perfect cipher Watch the next lesson: https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/frequency-stability?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Missed the previous lesson? https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/polyalphabetic-cipher?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Computer Science on Khan Academy: Learn select topics from computer science - algorithms (how we solve common problems in computer science and measure the efficiency of our solutions), cryptography (how we protect secret information), and information theory (how we encode and compress information). About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Computer Science channel: https://www.youtube.com/channel/UC8uHgAVBOy5h1fDsjQghWCw?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 407378 Khan Academy
Cooking with Cryptography by Fraser Tweedale
 
35:02
The ``cryptography`` library emerged in 2014 with the goal of becoming Python's "cryptographic standard library". It is designed to be easy to use but flexible, exposing a *recipes* layer for common use cases, and a *hazmat* layer that provides crypto primitives but demands users know what they're doing in order to use them properly. This talk will explain the motivations and goals of the ``cryptography`` library, take a tour of its features and discuss its implementation. ``cryptography`` will be compared to some other popular and emerging crypto libraries. Finally, we will examine some real-world use of the library. Audience members should have a passing familiarity with cryptography (e.g. know the differences between hashing and encryption, or public key and private key crypto) to get the most out of this talk. PyCon Australia is the national conference for users of the Python Programming Language. In 2015, we're heading to Brisbane to bring together students, enthusiasts, and professionals with a love of Python from around Australia, and all around the World. July 31-August 4, Brisbane, Queensland, Australia
Views: 509 PyCon Australia
NMCS4ALL: Random number generators
 
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Twenty minute introduction to randomness and pseudorandom number generators, with demos. The New Mexico CS for All project is teaching computational thinking and programming. Production supported by the National Science Foundation, award # CNS 1240992
Views: 24054 Dave Ackley
Python Turtle Graphics Tutorial #1 - Introduction
 
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In this video I am going to be going over the basics of the turtle module in python. The turtle module in python allows for unique graphics and is great for both beginners and intermediate programmers. Turtle Module Documentation: https://docs.python.org/2/library/turtle.html Want To Support This Channel? Bitcoin: 1PbkAYLFaJBgjbKn2ptGyBz65xWN8hJgBU Ethereum: 0xdd42dbbdba60f7163fc7a840e189474b6e8bfcad Ripple: rD4arM9CVjQWqi8f1kxdpCgkCgEkqBgtud Please leave a LIKE and SUBSCRIBE for more content! Tags: - Tech - Tech With Tim - Crypto - Programming - Coding - Pygame - Python Tutorials - Turtle Module - Python Turtle - Turtle Tutorial - Learn to code with python
Views: 336 Tech With Tim
Pygame Side-Scroller Tutorial #2 - Random Object Generation
 
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In this video I explain how to create a side scrolling game in python using pygame. In this second video in the series I explain how to create different obstacles/objects and how to randomly generate them on the screen. Github: https://www.github.com/techwithtim/side_scroller Please leave a LIKE and SUBSCRIBE for more content! Tags: - Tech - Tech With Tim - Crypto - Programming - Coding - Python - Pygame
Views: 767 Tech With Tim
Lecture 17: Elliptic Curve Cryptography (ECC) by Christof Paar
 
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For slides, a problem set and more on learning cryptography, visit www.crypto-textbook.com
Crypto 101: XOR
 
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What is XOR? Sorry about the poor mic quality due to screen recording i was unable to edit the sound as my main computer that i edit on ( with all the programs) has been retired.
Views: 5223 TheHackingNews
PyCon UK 2016: Why /dev/random is a horrible idea
 
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Cory Benfield Having access to randomness turns out to be remarkably important in computing. Whether you’re a scientist working on a simulation, someone trying to send secret messages, or just a person who wants to play a randomly generated video game level, having access to some kind of non-determinism is vital. But computers, as we all know, are thoroughly deterministic entities. So how can we get randomness? This talk will investigate how randomness works on computers. We’ll introduce you to random number generators, talk about the different kinds that are available and when to use them, and then talk about how to get access to random numbers from your Python code.
Views: 604 PyCon UK
Startup: High-quality Random Number Generator
 
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In this video Luka Matic explains why and how he designed and built a super duper random number generator that passes official regulatory (DIN, NIST, etc.) tests for randomness. Based on noise Zener diodes the circuit fills an SD card with files of up to 4 GB of really random data. On http://www.elektormagazine.com Luka writes: This Random Number Generator uses Zener diodes to generate avalanche noise signal, then differential amplifier (and a few analog filters) to eliminate deterministic effects. The noise signal is captured by ATTiny2313 and sent to an FAT32 SD card as a sequence of meaningless hex numbers. I tested random number sequences in MATLAB to check for randomness. I designed and produced a prototype PCB (that you can see on the elektormagazine website (https://www.elektormagazine.com/labs/random-number-generator-150116). This RNG is designed with cheap and ubiquitous components and still creates random sequences of good randomness. I tried all the methods that I know to analyze the random sequences. If you know more about mathematical methods for checking the randomness of the sequence, you could be interested to check yourself. I have the circuit schematics drawn on paper.
Views: 3810 www.elektor.tv
Dev++ | Jimy Song - Foundational Math, ECDSA and Transactions
 
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Jimmy Song explains the basics of cryptography that serves as a foundation for Bitcoin transactions. This course provides in-depth coverage of Elliptic Curve Digital Signature Algorithm (ECDSA), how ECDSA functions and how it is used to provide signing and verification of Bitcoin transactions. After covering the basics, Jimmy dives into and explains Bitcoin transaction data structure, including Bitcoin scripting opcodes - how these transactions are formed and interpreted by Bitcoin nodes. This session contains multiple sections at following timestamps: Finite Fields - https://youtu.be/e6voIwB-An4?t=4m50s Elliptic Curves - https://youtu.be/e6voIwB-An4?t=21m11s Elliptic Curves over Finite Fields - https://youtu.be/e6voIwB-An4?t=32m32s Mathematical Group - https://youtu.be/e6voIwB-An4?t=37m59s Bitcoin Addresses - https://youtu.be/e6voIwB-An4?t=50m08s ECDSA - https://youtu.be/e6voIwB-An4?t=57m42s Bitcoin Transactions - https://youtu.be/e6voIwB-An4?t=1h10m14s Bitcoin Scripts - https://youtu.be/e6voIwB-An4?t=1h17m27s Transaction Validation - https://youtu.be/e6voIwB-An4?t=1h25m Pay to Script Hash - https://youtu.be/e6voIwB-An4?t=1h29m27s To complete tasks in this course, you will need to setup the appropriate python environment as follows: Install python3, virtualenv, git $ git clone http://github.com/bitcoinedge/devplusplus $ cd devplusplus $ virtualenv -p python3 .venv $ . .venv/bin/activate $ pip install -r requirements.txt $ jupyter notebook Your browser should open up a jupyter notebook For additional information, please visit http://bitcoinedge.org If you are a professional interested in working in blockchain ecosystem, please create a profile on http://bitcoinedge.org and we will share your profile with our sponsors. If you are a company interested in hiring blockchain developers for full-time or contractual basis, please email us at [email protected]
Views: 1889 Bitcoin Edge
Bitcoin 101 - Elliptic Curve Cryptography - Part 4 - Generating the Public Key (in Python)
 
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Welcome to part four in our series on Elliptic Curve Cryptography. I this episode we dive into the development of the public key. In just 44 lines of code, with no special functions or imports, we produce the elliptic curve public key for use in Bitcoin. Better still, we walk you through it line by line, constant by constant. Nothing makes the process clearer and easier to understand than seeing it in straight forward code. If you've been wondering about the secp256k1 (arguably the most important piece of code in Bitcoin), well then this is the video for you. This is part 4 of our upcoming series on Elliptic Curves. Because of such strong requests, even though this is part 4, it is the first one we are releasing. In the next few weeks we will release the rest of the series. Enjoy. Here's the link to our Python code (Python 2.7.6): https://github.com/wobine/blackboard101/blob/master/EllipticCurvesPart4-PrivateKeyToPublicKey.py Here's the private key and the link to the public address that we use. Do you know why it is famous? Private Key : A0DC65FFCA799873CBEA0AC274015B9526505DAAAED385155425F7337704883E Public Address on Blockchain.info https://blockchain.info/address/1JryTePceSiWVpoNBU8SbwiT7J4ghzijzW Here's the private key we use at the end: 42F615A574E9CEB29E1D5BD0FDE55553775A6AF0663D569D0A2E45902E4339DB Public Address on Blockchain.info https://blockchain.info/address/16iTdS1yJhQ6NNQRJqsW9BF5UfgWwUsbF Welcome to WBN's Bitcoin 101 Blackboard Series -- a full beginner to expert course in bitcoin. Please like, subscribe, comment or even drop a little jangly in our bitcoin tip jar 1javsf8GNsudLaDue3dXkKzjtGM8NagQe. Thanks, WBN
Views: 20010 CRI
Introduction to Learning With Errors (LWE) - Quantum Robust Public Key
 
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http://asecuritysite.com/encryption/lwe Here is the Python code: import sys import numpy as np import random public_key=[] vals = [5, 8, 12, 16, 2, 6, 11, 3, 7, 10] s = 5 e = 12 message = 1 file='1111' val=0 for x in range(0,len(vals)): public_key.append(vals[x]*s+e) print "Message to send:",message print "Random values:",vals print "-----------------------\n" res = random.sample(public_key, len(public_key)/2) print "Public key",public_key print "Selected values",res sum = np.sum(res) print 'Sum is:',sum if (message==1): sum=sum+1 print 'Encrypted is:',sum rem = sum % s if (rem%2==0): print 'Message received is 0' else: print 'Message received is 1'
Views: 939 Bill Buchanan OBE
Random Keys for Vigenere Cipher
 
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Original Video: https://www.youtube.com/watch?v=el5sfvAUst8 How to use the Numpy package to generate random keys of a given length.
Views: 96 GrungySponge
CS 463/680 Crypto: Random Number Generation
 
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Random number generation in theory and practice. Course lecture for CS 463/680, Cryptography and Data Security https://www.cs.uaf.edu/courses/cs463/2015-spring/
Views: 100 Orion Lawlor
rot 13 cipher in python
 
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Implementation of ROT13 Cipher in Python. Like and share. It's FREE too :) Download source code at: https://drive.google.com/file/d/0B61-MHkMYqM4TFBpOTB1cU1keEU/ Follow us on Facebook https://www.facebook.com/AllTech-1089946481026048/
Views: 245 AllTech
Python and Prime Numbers  || Python Tutorial  ||  Learn Python Programming
 
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Today we use Python to identify prime numbers. This is important in cryptography and number theory. While it’s simple to make the function work, it’s hard to make it FAST. We’ll profile the function and look at several ways to improve the speed of our algorithm. Our Patrons on Patreon help us make our videos! We'd like to recognize our VIP Patron Vishal Shah whose generosity has made such a big difference for our channel. Thank you, Vishal! ➢➢➢➢➢➢➢➢➢➢ To learn Python, you can watch our playlist from the beginning: https://www.youtube.com/watch?v=bY6m6_IIN94&list=PLi01XoE8jYohWFPpC17Z-wWhPOSuh8Er- ➢➢➢➢➢➢➢➢➢➢ If you’d like a reference book, we recommend “Python Cookbook, 3rd Edition” from O’Reilly: http://amzn.to/2sCNYlZ The Mythical Man Month - Essays on Software Engineering & Project Management http://amzn.to/2tYdNeP ➢➢➢➢➢➢➢➢➢➢ To​ ​help​ ​us​ ​make​ ​videos more quickly,​ ​you​ ​can​ ​support​ Socratica at: ​Patreon​: https://www.patreon.com/socratica Socratica Paypal: https://www.paypal.me/socratica We also accept Bitcoin! :) Our​ ​address​ ​is: 1EttYyGwJmpy9bLY2UcmEqMJuBfaZ1HdG9 Thank​ ​you!! ➢➢➢➢➢➢➢➢➢➢ You​ ​can​ ​also​ ​follow​ ​Socratica​ ​on: -​ ​Twitter:​ ​@socratica -​ ​Instagram:​ ​@SocraticaStudios -​ ​Facebook:​ ​@SocraticaStudios ➢➢➢➢➢➢➢➢➢➢ Python instructor: Ulka Simone Mohanty (@ulkam on Twitter) Written & Produced by Michael Harrison (@mlh496 on Twitter)
Views: 41972 Socratica