Feistel ciphers

CS-Cipher

In cryptography, CS-Cipher (for Chiffrement Symétrique) is a block cipher invented by Jacques Stern and Serge Vaudenay in 1998. It was submitted to the NESSIE project, but was not selected. The algorithm uses a key length between 0 and 128 bits (length must be a multiple of 8 bits). By default, the cipher uses 128 bits. It operates on blocks of 64 bits using an 8-round Feistel network and is optimized for 8-bit processors. The round function is based on the fast Fourier transform and uses the binary expansion of e as a source of "nothing up my sleeve numbers". (Wikipedia).

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Compacting code with CSS variables

Click the SHOW MORE below for links to the demos (original & my fork) and more. Here, I'm compacting the code and making it more maintainable by eliminating defaults and using CSS variables to get rid of the `linear-gradient()` repetition. I'm not using Sass because the original pen wasn'

From playlist CSS variables

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HTML5 CSS3 tutorial - Defining and applying a CSS class

This tutorial explains the concept of classes in CSS and how to apply it to different tags.

From playlist HTML5 and CSS3

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Binary Search

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From playlist CS50 Sections 2015

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Algorithms Summary

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From playlist CS50 Sections 2015

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Linear Search

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From playlist CS50 Sections 2015

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OSFeels 2016 - Now We're Cooking With STEAM: Humanities in Computer Science Education by Amy Wibowo

There's been a recent push for incorporating computer science into high school classrooms, while some schools struggle to find funding for their art and music programs. This talk asks "Why not both?" and explores the ways that incorporating art can benefit a computer science curriculum, us

From playlist OSFeels 2016

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Defining Custom Types

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From playlist CS50 Sections 2015

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HTML and CSS (1 / 6)

Intro to HTML and CSS. Part of a larger series. Visit codeschool.org

From playlist HTML and CSS

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Robust dynamics, invariant structures and topological classification – Rafael Potrie – ICM2018

Dynamical Systems and Ordinary Differential Equations Invited Lecture 9.11 Robust dynamics, invariant structures and topological classification Rafael Potrie Abstract: Robust dynamical properties imply invariant geometric structures. We will survey the recent advances on topological clas

From playlist Dynamical Systems and ODE

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Lecture 13 | Programming Methodology (Stanford)

Lecture by Professor Mehran Sahami for the Stanford Computer Science Department (CS106A). Professor Sahami lectures on string processing and characters. CS106A is an Introduction to the engineering of computer applications emphasizing modern software engineering principles: object-orien

From playlist Course | Programming Methodology

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Bubble Sort

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From playlist CS50 Sections 2015

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Toy Substitution Cipher 2 - Applied Cryptography

This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.

From playlist Applied Cryptography

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What is Cryptography? | Introduction to Cryptography | Cryptography for Beginners | Edureka

🔵Edureka Cyber Security Masters Program: https://bit.ly/3pfHHIN 🔥Edureka CompTIA Security+ Certification Training: https://bit.ly/3nxeVRl Cryptography is essential to protect the information shared across the internet. This video on What is cryptography explaines you the fundamental concep

From playlist Cyber Security Training for Beginners | Edureka

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The Trick That Solves Rubik’s Cubes and Breaks Ciphers (Meet in the Middle)

What do the Rubik's cube and a cipher from the 70s have in common? Let's find out. 0:00 Rubik's cube 9:40 DES ------------------------ Links: Feliks setting the 4.73 record https://www.youtube.com/watch?v=R07JiT0PlcE&ab_channel=FeliksZemdegs webpage "God's number is 20" http://www.cub

From playlist Algorithms

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Week 2: Friday - CS50 2007 - Harvard University

Functions, continued. Global variables. Parameters. Return values. Stack. Frames. Scope. Arrays. Strings. Command-line arguments. Cryptography.

From playlist CS50 Lectures 2007

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Week 2: Wednesday - CS50 2008 - Harvard University

Functions, continued. Global variables. Parameters. Return values. Stack. Frames. Scope. Arrays. Strings. Command-line arguments. Cryptography.

From playlist CS50 Lectures 2008

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Toy Substitution Cipher 2 Solution - Applied Cryptography

This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.

From playlist Applied Cryptography

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Magic Numbers

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From playlist CS50 Sections 2015

Related pages

NESSIE | Block cipher | Feistel cipher | E (mathematical constant) | PostScript | Cryptography | Fast Fourier transform