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: 96357 Socratica
This tutorial covers how to download and install packages using pip. Pip comes with newer versions of Python, and makes installing packages a breeze. ImportError: DLL load failed: The specified module could not be found : http://stackoverflow.com/questions/20201868/importerror-dll-load-failed-the-specified-module-could-not-be-found
Views: 817967 sentdex
Installing Third-Party Modules on Python In the Python folder, in scripts, there is a pip application. The pip tool is meant to be run from the command line. Through this tool on Windows, you can install modules for Python. Guide: Type %localAppdata% on start or Run, go to Programs, Python, Scripts and add pip to this path or use this path: "C:\Users\youruser\AppData\Local\Programs\Python\Python36-32\Scripts\pip " The path depends on the Windows username and Python version. 1. Open CMD or Command Prompt. 2. Paste the path C:\Users\youruser\AppData\Local\Programs\Python\Python36-32\Scripts\pip 3. Add install nameofthe module example C:\Users\youruser\AppData\Local\Programs\Python\Python36-32\Scripts\pip install pyperclip 4. Press Enter To uninstall it just change install to uninstall and confirm. Thank you for watching! by EasyComputerUse
Views: 22703 EasyComputerUse
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: 23284 Javapocalypse
حسابي علي github:: https://github.com/abdallahelsokary الجروب الخاص بنا: https://www.facebook.com/groups/155349421484222/?ref=bookmarks صفحتي علي الفيسبوك: https://www.facebook.com/ILLSW/?ref=bookmarks حسابي علي تويتر: https://twitter.com/abdallahelsoka1
Views: 388 abdallah elsokary
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: 88654 sentdex
Bernardt Duvenhage https://za.pycon.org/talks/53-fast-random-number-generation-in-python-and-numpy/ A fast Random Number Generator (RNG) is key to doing Monte Carlo simulations, efficiently initialising machine learning models, shuffling long sequences of numbers and many tasks in scientific computing. CPython and NumPy use implementations of the Mersenne Twister RNG and rejection sampling to generate random numbers in an interval. The NumPy implementation trades more samples for cheaper division by a power of two. The implementation is very efficient when the random interval is a power of two, but on average generate many more samples compared to the GNU C or Java algorithms. The Python RNG uses an algorithm similar to GNU C. A recent paper by Daniel Lemire (https://arxiv.org/abs/1805.10941) discusses an efficient division light method to generate uniform random numbers in an interval. This method is apparently used in the Go language. On 64-bit platforms there are also fast alternative RNGs that perform comparatively on statistical examinations passing tests like BigCrush. The splitmix64 (part of the standard Java API) and lehmer64 RNGs, for example, require approximately 1.5 cycles to generate 32 random bits (without using SIMD) while the 32-bit Mersenne Twister requires approximately 10 cycles per 32 bits. This talk will discuss the inclusion of Lemire's method in NumPy as an alternative to the current rejection sampling implementation. My implementation results in a 2x - 3x improvement in the performance of generating a sequence of random numbers. Using splitmix64 or lehmer64 RNGs in NumPy instead of the Mersenne Twister results in a further 2x performance improvement. The random module in Python does not do the rejection sampling in C like NumPy does. Much of the time to get a random number is therefore spent in the Python code. This talk will also discuss a fast random Python module that implements Lemire's method instead of the current rejection sampling, provides alternative RNGs and moves more of the code into C. I'm considering doing pull requests for both the NumPy modification and the Python fast random module and will present a detailed analysis of the proposed modifications. pyconza2018 python
Views: 429 PyCon South Africa
This playlist/video has been uploaded for Marketing purposes and contains only selective videos. For the entire video course and code, visit [http://bit.ly/2y13UAO]. Learn to program Bitcoin API using Python. • Learn how to generate a Bitcoin address • Learn how to generate a Multi-Signature address • Learn how to get the transactional history of a address For the latest Application development video tutorials, please visit http://bit.ly/1VACBzh Find us on Facebook -- http://www.facebook.com/Packtvideo Follow us on Twitter - http://www.twitter.com/packtvideo
Views: 6365 Packt Video
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi What is a the difference between a random and a pseudorandom number? And what can pseudo random numbers allow us to do that random numbers can't? Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode How many Cops to catch a Robber? | Infinite Series https://www.youtube.com/watch?v=fXvN-pF76-E Computers need to have access to random numbers. They’re used to encrypt information, deal cards in your game of virtual solitaire, simulate unknown variables -- like in weather prediction and airplane scheduling, and so much more. But How can a computer possibly produce a random number? Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Assistant Editing and Sound Design by Mike Petrow Made by Kornhaber Brown (www.kornhaberbrown.com) Special Thanks to Alex Townsend Big thanks to Matthew O'Connor and Yana Chernobilsky who are supporting us on Patreon at the Identity level! And thanks to Nicholas Rose and Mauricio Pacheco who are supporting us at the Lemma level!
Views: 126446 PBS Infinite Series
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: 48403 DrapsTV
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: 162813 Khan Academy Labs
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: 28570 Coding Math
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: 13565 Anders Brownworth
This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.
Views: 9303 Udacity
Backed by OpenSSL, Node.js crypto module can do some pretty cool stuff. Hope you enjoyed the video! Check out this code here: https://github.com/engineer-man/youtube-code/tree/master/052 Join my Discord server to chat with me: https://discord.gg/engineerman Check out some code on my GitHub: https://github.com/ebrian/engineerman Tweet me something funny on Twitter: https://twitter.com/_EngineerMan Say hi over at Facebook: https://www.facebook.com/engineermanyt Sincerely, Engineer Man
Views: 3981 Engineer Man
In this video I show you how to encrypt and decrypt strings and files using Python. I show you how to create a key, store the key and then how to use the key to encrypt and decrypt strings and files. This video demonstrates the use of the cryptography module. 🌎 Post with code and a written tutorial: https://nitratine.net/blog/post/encryption-and-decryption-in-python/ 📺 Auto Py to Exe: https://youtu.be/OZSZHmWSOeM 📺 Python GUI Using Chrome: https://youtu.be/2kbeBzEQfXE 📺 How to Send Emails in Python: https://youtu.be/YPiHBtddefI The cryptography is supported by Python 2.7 and Python 3.4 and above. (Also PyPy 5.3+) 🌎 cryptography docs: https://cryptography.io/en/latest/ 🐍 In this video I use Python 3.6. 👍🏼 Feel free to comment with any issues.
Views: 19058 PyTutorials
python ImportError: No module named numpy sudo pip install numpy sudo pip3 install numpy sudo apt-get install python3-pip Python Tutorials : https://www.facebook.com/PythonTutorials/ Please Like this Page to get Latest Python, Machine Learning and Artificial intelligence Tutorials If you enjoy these videos and would like to support my channel, I would greatly appreciate any assistance. https://www.paypal.me/tutorialdonation
Views: 26937 ATOM
Let's just clear up all the threading vs multiprocessing confusion, shall we? Let's jump in! Hope you enjoyed the video! Check out this code here: https://github.com/ebrian/engineerman/tree/master/036 Join my Discord server to chat with me: https://discord.gg/k5VcqDP Check out some code on my GitHub: https://github.com/ebrian/engineerman Tweet me something funny on Twitter: https://twitter.com/_EngineerMan Say hi over at Facebook: https://www.facebook.com/engineermanyt Sincerely, Engineer Man
Views: 36397 Engineer Man
Hey guys Crafty back with another video. Today I am showing you guys how to make the random password generation for the password manager. This was the aim of my last video however as the audio was terrible I decided to start afresh and finally teach you guys how to make a password manager in Python
Views: 1391 Crafty Stuff
Remember to leave a like on this video and dont forget to subcribe to my youtube channel. ===================================================== The definitive guide to solve the infamous Python exception “ModuleNotFoundError” Among common Python exceptions, the most infamous and time consuming one to solve is no doubt the “ModuleNotFoundError” but actually is pretty simple to fix once you understand a couple of concepts. Fundamentally it can be raised for three reasons: ==================================================== 1.A typo or a wrong path specified in the import statement 2. Execution context which requires an entry addition in sys.path that has not been satisfied 3. Circular dependency ===================================================== python tutorial for beginners python tutorial python setup python 3.6 python 2.7 start coding programming course How to fix ImportError No module in Python 3.6 kai_plummer
Views: 28297 kai_plummer
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: 5128 GrungySponge
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi To understand finance, search algorithms and even evolution you need to understand Random Walks. Tell PBS what types of shows you want to see at https://www.surveymonkey.com/r/pbsds2017 25 random participants in the survey will receive PBS t-shirts. Tweet at us! @pbsinfinite Facebook: facebook.com/pbsinfinite series Email us! pbsinfiniteseries [at] gmail [dot] com Previous Episode - Proving Pick’s Theorem https://www.youtube.com/watch?v=bYW1zOMCQno Markov Chains https://www.youtube.com/watch?v=63HHmjlh794 Written and Hosted by Kelsey Houston-Edwards Produced by Rusty Ward Graphics by Ray Lux Made by Kornhaber Brown (www.kornhaberbrown.com) Random Walks are used in finance, computer science, psychology, biology and dozens of other scientific fields. They’re one of the most frequently used mathematical processes. So exactly what are Random Walks and how do they work? Comments answered by Kelsey: Petros Adamopoulos https://www.youtube.com/watch?v=bYW1zOMCQno&lc=z12hcf1rayqazhrry04cdtbxknznfdvayto0k Jonathan Castello https://www.youtube.com/watch?v=bYW1zOMCQno&lc=z13lslqjqzzyzbbew22dwlh54zj4tpo0j Niosus https://www.youtube.com/watch?v=bYW1zOMCQno&lc=z13kwrpavz3igj32t230dnl4uun2hppow04
Views: 152233 PBS Infinite Series
A quick look at the Caesar Shift and the more powerful Random Substitution Cipher. They were the basis of code-breaking for years, but they can be cracked! We look at how you can do it by hand, and how to use computers to do it quickly. To try the program demonstrated in the video, you will need to install Python 3, and then download the Python file from my GitHub: https://github.com/StevePaget/SubstitutionCipherCracker
Views: 457 Paget Teaches...
This tutorial explains how to implemented the Caesar cipher or ROT13 cipher using Python. It explains each instruction in detail and helps beginners understand how the encryption process works in a step-by-step basis.
Views: 286 ma academy
Introduction to random primality tests & how they will work (warm up). Watch the next lesson: https://www.khanacademy.org/computing/computer-science/cryptography/random-algorithms-probability/v/fermat-s-little-theorem-visualization?utm_source=YT&utm_medium=Desc&utm_campaign=computerscience Missed the previous lesson? https://www.khanacademy.org/computing/computer-science/cryptography/random-algorithms-probability/v/bayes-theorem-visualized?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: 14225 Khan Academy Labs
How Software Works is a book and video series explaining the magic behind software encryption, CGI, video game graphics, and a lot more. The book uses plain language and lots of diagrams, so no technical or programming background is required. Come discover what's really happening inside your computer! This episode is about random numbers--why software needs them, why they can't really make them, and why that's okay. Learn more about the book... - At the Amazon page (http://amzn.to/1mZ276M). - At my publisher (http://www.nostarch.com/howsoftwareworks) - At my site (http://www.vantonspraul.com/HSW). If you'd like to contact me visit my site (http://vantonspraul.com), or just leave a comment below. Suggestions for future topics are welcome!
Views: 17084 V. Anton Spraul
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: 10701 Sandeep Pushp
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: 22451 CRI
Introduction to random primality tests & how they will work (warm up). I setup a simple division which is not very efficient since it requires many trials. Though we can use this same concept to build much more efficient tests. We just need a new equation! Follow along here: https://www.khanacademy.org/math/applied-math/cryptography/random-algorithms-probability/p/level-9-trial-divison-vs-random-division
Views: 6929 Art of the Problem
Pseudo random number generators; Linear Congruential Generator. Lecture 7 of CSS322 Security and Cryptography at Sirindhorn International Institute of Technology, Thammasat University. Given on 12 December 2013 at Bangkadi, Pathumthani, Thailand by Steven Gordon. Course material via: http://sandilands.info/sgordon/teaching
Views: 22337 Steven Gordon
Using the greatest common divisor (GCD) to factorize the public modulo into the secret primes, so we can forge a RSA signature. Source for the rhme2 challenges: https://github.com/Riscure/Rhme-2016 -=[ 🔴 Stuff I use ]=- → Microphone:* https://amzn.to/2LW6ldx → Graphics tablet:* https://amzn.to/2C8djYj → Camera#1 for streaming:* https://amzn.to/2SJ66VM → Lens for streaming:* https://amzn.to/2CdG31I → Connect Camera#1 to PC:* https://amzn.to/2VDRhWj → Camera#2 for electronics:* https://amzn.to/2LWxehv → Lens for macro shots:* https://amzn.to/2C5tXrw → Keyboard:* https://amzn.to/2LZgCFD → Headphones:* https://amzn.to/2M2KhxW -=[ ❤️ Support ]=- → per Video: https://www.patreon.com/join/liveoverflow → per Month: https://www.youtube.com/channel/UClcE-kVhqyiHCcjYwcpfj9w/join -=[ 🐕 Social ]=- → Twitter: https://twitter.com/LiveOverflow/ → Website: https://liveoverflow.com/ → Subreddit: https://www.reddit.com/r/LiveOverflow/ → Facebook: https://www.facebook.com/LiveOverflow/ -=[ 📄 P.S. ]=- All links with "*" are affiliate links. LiveOverflow / Security Flag GmbH is part of the Amazon Affiliate Partner Programm. #CTF #Cryptography
Views: 45879 LiveOverflow
This is my first attempt to live stream. Which was not really a live stream, but more of a video recording, so excuse my confused narrative in the beginning )) Hope, this may be useful and see you online next time.
Views: 160 Alexey Akimov
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: 4574 www.elektor.tv
In this video we'll be learning how to create our own license keys using Python, we'll also be using our own algorithm to verify keys we create. Go to https://howcode.org for more! Source code: https://howco.de/python-key Link to DigitalOcean: http://howco.de/d_ocean Link to howCode Facebook: http://howco.de/fb Link to howCode Twitter: http://howco.de/twitter Link to /r/howCode: http://howco.de/reddit Don't forget to subscribe for more!
Views: 5614 howCode
hey guys i hope you enjoy the first upload, if you do please be sure to send it to all your friends and drop a like rating and a favorite or a comment if you want some help with any code :) ----------------------------------- Sorry for the mistakes it was at about 5 in the morning when i was recording this and in a dark room so i couldn't even see my keyboard :/ hope you enjoyed it anyway :P
Views: 19642 MrProgrammingHelp
Hi there! In this video I created a simple program which finds left or right truncatable primes. After watching the Numberphile video: https://www.youtube.com/watch?v=azL5ehbw_24 I decided to try and write a python script to find them. You can find the source code here: https://github.com/ionelaipatioaei/Random-Python/tree/master/Truncatable%20primes Music used in this video: 1. Vexento - Spirit https://www.youtube.com/watch?v=mWXnlvAlj2w
Views: 171 Ionel Aipatioaei
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Random Number Generators (RNGs) are useful in many ways. This video explains how a simple RNG can be made of the 'Linear Congruential Generator' type. This type of generator is not very robust, but it is quick and easy to program with little memory requirement.
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05 Aug 2014 - Bsides Las Vegas 2014 Joe "moloch" - Bishop Fox Dan "AltF4" Petro - Bishop Fox http://www.bishopfox.com http://www.bishopfox.com/blog/2014/08/untwisting-mersenne-twister-killed-prng/ http://www.irongeek.com/i.php?page=videos/bsideslasvegas2014/bg04-untwisting-the-mersenne-twister-how-i-killed-the-prng-moloch Untwisting The Mersenne Twister: How I killed the PRNG Applications rely on generating random numbers to provide security, and fail catastrophically when these numbers turn out to be not so “random.” For penetration testers, however, the ability to exploit these systems has always been just out of reach. To solve this problem, we’ve created “untwister:” an attack tool for breaking insecure random number generators and recovering the initial seed. We did all the hard math, so you don't have to! Random numbers are often used in security contexts for generating unique IDs, new passwords for resets, or cryptographic nonces. However, the built-in random number generators for most languages and frameworks are insecure, leaving applications open to a series of previously theoretical attacks. Lots of papers have been written on PRNG security, but there's still almost nothing practical you can use as a pentester to actually break live systems in the wild. This talk focuses on weaponizing what used to be theoretical into our tool: untwister. Let's finally put rand() to rest. DISCLAIMER: This video is intended for pentesting training purposes only.
Views: 4457 Bishop Fox