Theory of cryptography | Transforms

Pseudo-Hadamard transform

The pseudo-Hadamard transform is a reversible transformation of a bit string that provides cryptographic diffusion. See Hadamard transform. The bit string must be of even length so that it can be split into two bit strings a and b of equal lengths, each of n bits. To compute the transform, a' and b', from these we use the equations: To reverse this, clearly: (Wikipedia).

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Animated Mandelbrot transform - linear interpolation

http://code.google.com/p/mandelstir/

From playlist mandelstir

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Introduction to the z-Transform

http://AllSignalProcessing.com for more great signal processing content, including concept/screenshot files, quizzes, MATLAB and data files. Introduces the definition of the z-transform, the complex plane, and the relationship between the z-transform and the discrete-time Fourier transfor

From playlist The z-Transform

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The Fourier Transform and Derivatives

This video describes how the Fourier Transform can be used to accurately and efficiently compute derivatives, with implications for the numerical solution of differential equations. Book Website: http://databookuw.com Book PDF: http://databookuw.com/databook.pdf These lectures follow

From playlist Fourier

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The Two-Dimensional Discrete Fourier Transform

The two-dimensional discrete Fourier transform (DFT) is the natural extension of the one-dimensional DFT and describes two-dimensional signals like images as a weighted sum of two dimensional sinusoids. Two-dimensional sinusoids have a horizontal frequency component and a vertical frequen

From playlist Fourier

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Sign problems and quantum computers (Lecture - 04) by David B Kaplan

Nonperturbative and Numerical Approaches to Quantum Gravity, String Theory and Holography DATE:27 January 2018 to 03 February 2018 VENUE:Ramanujan Lecture Hall, ICTS Bangalore The program "Nonperturbative and Numerical Approaches to Quantum Gravity, String Theory and Holography" aims to

From playlist Nonperturbative and Numerical Approaches to Quantum Gravity, String Theory and Holography

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Complex Analysis (Advanced) -- The Schwarz Lemma

A talk I gave concerning my recent results on the Schwarz Lemma in Kähler and non-Kähler geometry. The talk details the classical Schwarz Lemma and discusses André Bloch. This is part 1 of a multi-part series. Part 1 -- https://youtu.be/AWqeIPMNhoA Part 2 -- https://youtu.be/hd7-iio77kc P

From playlist Complex Analysis

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Christian Gérard - Construction of Hadamard states for Klein‐Gordon fields

We will review a new construction of Hadamard states for quantized Klein-­Gordon fields on curved spacetimes, relying on pseudo differential calculus on a Cauchy surface. We also present some work in progress where Hadamard states are constructed from traces of Klein-­Gordon fields on a ch

From playlist Ecole d'été 2014 - Analyse asymptotique en relativité générale

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Oracle Separation of Quantum Polynomial time and the Polynomial Hierarchy - Avishay Tal

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From playlist Mathematics

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2.2.2 What is a linear transformation?

2.2.2 What is a linear transformation?

From playlist LAFF - Week 2

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Finding and Solving the Hadamard Population Conjecture

We describe our process for finding and solving the Hadamard Population conjecture. This conjecture is for all v, for all w, fht(v) dot-product fht(w) = n * population(v intersect w), where v and w are binary vectors and n is the length of all vectors. This is a submission to the #SoME2 co

From playlist Summer of Math Exposition 2 videos

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An introduction to the wavelet transform (and how to draw with them!)

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From playlist Summer of Math Exposition Youtube Videos

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How to apply Fourier transforms to solve differential equations

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From playlist Partial differential equations

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Lec 20 | MIT 6.451 Principles of Digital Communication II, Spring 2005

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From playlist MIT 6.451 Principles of Digital Communication II

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Math 139 Fourier Analysis Lecture 26: Radial symmetry and Fourier transform. Radon transform.

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From playlist Course 8: Fourier Analysis

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Lec 23 | MIT 6.451 Principles of Digital Communication II

Lattice and Trellis Codes View the complete course: http://ocw.mit.edu/6-451S05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu

From playlist MIT 6.451 Principles of Digital Communication II

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DDPS | Entropy stable schemes for nonlinear conservation laws

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From playlist Data-driven Physical Simulations (DDPS) Seminar Series

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Quantum computation (Lecture 03) by Peter Young

ORGANIZERS : Abhishek Dhar and Sanjib Sabhapandit DATE : 27 June 2018 to 13 July 2018 VENUE : Ramanujan Lecture Hall, ICTS Bangalore This advanced level school is the ninth in the series. This is a pedagogical school, aimed at bridging the gap between masters-level courses and topics

From playlist Bangalore School on Statistical Physics - IX (2018)

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Quantum computation (Lecture 02) by Peter Young

ORGANIZERS : Abhishek Dhar and Sanjib Sabhapandit DATE : 27 June 2018 to 13 July 2018 VENUE : Ramanujan Lecture Hall, ICTS Bangalore This advanced level school is the ninth in the series. This is a pedagogical school, aimed at bridging the gap between masters-level courses and topics

From playlist Bangalore School on Statistical Physics - IX (2018)

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Electrical Engineering: Ch 19: Fourier Transform (2 of 45) What is a Fourier Transform? Math Def

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From playlist ELECTRICAL ENGINEERING 18: THE FOURIER TRANSFORM

Related pages

SAFER | Block cipher | Twofish | Matrix (mathematics) | Invertible matrix | Hadamard transform