Py is a stream cipher submitted to eSTREAM by Eli Biham and Jennifer Seberry. It is one of the fastest eSTREAM candidates at around 2.6 cycles per byte on some platforms. It has a structure a little like RC4, but adds an array of 260 32-bit words which are indexed using a permutation of bytes, and produces 64 bits in each round. The authors assert that the name be pronounced "Roo", a reference to the cipher's Australian origin, by reading the letters "Py" as Cyrillic (Ру) rather than Latin characters. This somewhat perverse pronunciation is understood to be their answer, in jest, to the difficult-to-pronounce name Rijndael for the cipher which was adopted as the Advanced Encryption Standard. * The original April 2005 proposal included the cipher Py, and a simplified version Py6. The latter reduces the size of some internal tables, providing greatly reduced key scheduling cost, at the expense of a shorter maximum output length. * In June 2006, the authors described Pypy (even more confusingly, half-Cyrillic Pyру and thus pronounced "Pyroo") as an optional stronger variant. This omits one of the output words from each iteration of Py, and thus operates at slightly over half the speed of Py. (Actually about 0.6×.) * In January 2007, the key schedule algorithm was changed, producing "tweaked" variants TPy, TPypy and TPy6. To be precise, the first (key-dependent) phase is unmodified, but the second (IV setup) phase has an error corrected. The round functions used to produce output are identical. * At Indocrypt 2007, , Souradyuti Paul and Bart Preneel proposed two new ciphers and based on the design principles of Pypy and Py, respectively. These replace a variable rotate in Py with a fixed rotate, eliminating an attack and speeding up the cipher slightly. The TPy key schedule is used unmodified. (Wikipedia).
Ethical Hacking Tutorial | How To Perform Reconnaissance | Session 03 | #cybersecurity
Don’t forget to subscribe! In this ethical hacking tutorial, you will learn to perform reconnaissance. Reconnaissance is the First Step in Ethical Hacking and if you have correct data about the target, you will probably be able to hack it. This project series will guide you to perform r
From playlist Perform Reconnaissance
Cybersecurity, continued - CS50 for Lawyers 2019
00:00:00 - Introduction 00:00:15 - Git and GitHub 00:13:09 - Two-Factor Authentication (2FA) 00:17:19 - Denial of Service (DoS) Attacks 00:17:59 - Making Cyberspace Safe for Democracy 00:24:37 - Denial of Service (DoS) Attacks (continued) 00:27:22 - Computer Fraud and Abuse Act 00:28:49 -
From playlist CS50 for Lawyers 2019
Learn How to Multiply the Cube Root of Two Radical Expressions
👉 Learn how to multiply radicals. A radical is a number or an expression under the root symbol. To multiply radicals with the same root, it is usually easy to evaluate the product by multiplying the numbers or expressions inside the roots retaining the same root and then simplify the resul
From playlist How to multiply Radicals Expressions
Multiplying the Cube root of Two Radical Expressions
👉 Learn how to multiply radicals. A radical is a number or an expression under the root symbol. To multiply radicals with the same root, it is usually easy to evaluate the product by multiplying the numbers or expressions inside the roots retaining the same root and then simplify the resul
From playlist How to multiply Radicals Expressions
Tutorial Simplify and Multiply the Cube Root of Two Numbers
👉 Learn how to multiply radicals. A radical is a number or an expression under the root symbol. To multiply radicals with the same root, it is usually easy to evaluate the product by multiplying the numbers or expressions inside the roots retaining the same root and then simplify the resul
From playlist How to multiply Radicals Expressions
Learn how to simplify the product of the cube root of two numbers ex 6
👉 Learn how to multiply radicals. A radical is an expression or a number under the root symbol. To multiply radicals with the same root, it is usually easy to evaluate the product by multiplying the numbers or expressions inside the roots retaining the same root, and then simplify the resu
From playlist How to multiply Radicals Expressions
Squaring a monomial with a radical
👉 Learn how to multiply radicals. A radical is an expression or a number under the root symbol. To multiply radicals with the same root, it is usually easy to evaluate the product by multiplying the numbers or expressions inside the roots retaining the same root, and then simplify the resu
From playlist How to multiply Radicals Expressions
Simplifying an expression with a parenthesis ex 4, 10 - (2^3 + 4)/3 - 1
👉 Learn how to simplify mathematics expressions. A mathematis expression is a finite combination of numbers and symbols formed following a set of operations or rules. To simplify a mathematics expression means to reduce the expression into simpler form. For expressions having parenthesis
From playlist Simplify Expressions Using Order of Operations
Multiply the Cube Root of Two Expressions
👉 Learn how to multiply radicals. A radical is a number or an expression under the root symbol. To multiply radicals with the same root, it is usually easy to evaluate the product by multiplying the numbers or expressions inside the roots retaining the same root and then simplify the resul
From playlist How to multiply Radicals Expressions
Multiplying Two Cube Root Expressions and Simplifying
👉 Learn how to multiply radicals. A radical is a number or an expression under the root symbol. To multiply radicals with the same root, it is usually easy to evaluate the product by multiplying the numbers or expressions inside the roots retaining the same root and then simplify the resul
From playlist How to multiply Radicals Expressions
Ambushed by Mechanoids - Rimworld Ice Sheet Tribal Ep. 49 [Rimworld 1.0 Ice Sheet Challenge]
In this episode of our Rimworld Ice Sheet Tribal Challenge, we continue to collect materials for the space ship, fend off a Mechanoid raid and get ambushed while we attempt to grab a pile of advanced components. ► Full Playlist: https://goo.gl/q3Cx7t We return to the Ice Sheet in Rimworld
From playlist Pete Completes: Rimworld Ice Sheet Tribal Challenge - Starting with nothing [Rimworld Randy Random Extreme/Merciless]
Math Tutorial for Multiplying Two Radical Expressions to the Fourth Root Together
👉 Learn how to multiply radicals. A radical is a number or an expression under the root symbol. To multiply radicals with the same root, it is usually easy to evaluate the product by multiplying the numbers or expressions inside the roots retaining the same root and then simplify the resul
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From playlist CS50 Sections 2012
Lec 8 | MIT 5.111 Principles of Chemical Science, Fall 2005
P Orbitals (Prof. Sylvia Ceyer) View the complete course: http://ocw.mit.edu/5-111F05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 5.111 Principles of Chemical Science, Fall 2005
Python Django Tutorial | Python Tutorial With Django Framework | Python Training | Edureka
( Python Training : https://www.edureka.co/data-science-python-certification-course ) This Edureka Python Django tutorial (Python Tutorial Blog: https://goo.gl/wd28Zr) explains what exactly is web development and what exactly is Django framework. It also explains how to create a simple hel
From playlist Python Programming Tutorials | Edureka
Beyond the Basic Stuff with Python - Al Sweigart - Part 8
This is video 8 of my 54-video online course following my free book, "Beyond the Basic Stuff with Python". This book is written for intermediate programmers, and can be read online at https://inventwithpython.com/beyond/ Support me on Patreon: https://patreon.com/AlSweigart Skip Amazon
From playlist Beyond the Basic Stuff with Python
CS50 VR 2016 - Week 8 - Python
This is Week 8 of CS50 2016 in 360º stereoscopic VR, shot on Nokia OZO. For the 2D version of Week 8, see https://youtu.be/5aP9Bl9hcqI. 00:00:00 - Recap 00:02:15 - From C to Python 00:11:40 - Interpreted Languages 00:15:26 - Porting to Python 00:17:47 - hello.py 00:20:05 - string.py 00:26
From playlist CS50 VR Lectures 2016
Python NumPy Tutorial | NumPy Array | Python Tutorial For Beginners | Python Training | Edureka
** Python Certification Training: https://www.edureka.co/python-programming-certification-training ** This Edureka Python Numpy tutorial (Python Tutorial Blog: https://goo.gl/wd28Zr) explains what exactly is Numpy and how it is better than Lists. It also explains various Numpy operations w
From playlist Python Programming Tutorials | Edureka
Math Tutorial for Learning How to Multiply the Cube Root of Two Variable Expressions
👉 Learn how to multiply radicals. A radical is a number or an expression under the root symbol. To multiply radicals with the same root, it is usually easy to evaluate the product by multiplying the numbers or expressions inside the roots retaining the same root and then simplify the resul
From playlist How to multiply Radicals Expressions
Python Interview Questions And Answers | Python Interview Preparation | Python Training | Edureka
🔵 Edureka Python Training: https://www.edureka.co/data-science-python-certification-course This video on Python Interview Questions and Answers will help you prepare for Python job interviews. Start your preparation by going through the most frequently asked questions on Python. Check out
From playlist Python Programming Tutorials | Edureka