'Pseudo random' presentation slideshows

Procedural Texturing and Modeling

Procedural Texturing and Modeling. Advanced Animation and Motion Capture (AA&MC). Topics covered: Fractals & Noise a. Random b. Pseudo-random c. Perlin Noise d. Iterated functions e. Spiral Phyllotaxis

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The Power of Randomness in Computation

The Power of Randomness in Computation. ??? ??????. PART I: Randomization. Random Sampling. Population: 20 million, voting yellow or red. Random Sample: 3,000. Polling. With probability >99% % in population = % in sample ? 5% independent of population size. Lesson.

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Simulation II

Simulation II. IE 2030 Lecture 18. Outline: Simulation II. Advanced simulation demo Review of concepts from Simulation I How to perform a simulation concepts: state variables, events , etc. example Sampling Verification and Validation. Steady State Transient

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Simple extractors for all min-entropies and a new pseudo-random generator

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Lecturer: Moni Naor

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Stream Cipher

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Numerical Methods

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CSC 774 Advanced Network Security

CSC 774 Advanced Network Security. Topic 2. Review of Cryptographic Techniques. Outline. Encryption/Decryption Digital signatures Hash functions One-way hash chain Merkle hash tree Pseudo random functions Key exchange/agreement/distribution. Encryption/Decryption.

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Foundations of Cryptography Lecture 12

Foundations of Cryptography Lecture 12. Lecturer: Moni Naor. Recap of Lecture 11. Pseudo-random functions Combining pseudo-random functions Concatenation Composing The GGM tree construction Pseudo-Random Permutations Feistal Permutations. Block-Ciphers :

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Introduction to Information Security

Introduction to Information Security. Pieter.Hartel@utwente.nl. Overview. Definitions Design issues Cryptography Security Protocols.

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A bit of everything: dim-reduction, sketching, nearest neighbor search, and fruit flies

A bit of everything: dim-reduction, sketching, nearest neighbor search, and fruit flies. Alex Andoni. Computational problem: Similarity search. 000000 011100 010100 000100 010100 011111. 000000 001100 000100 000100 110100 111111. objects high-dimensional vectors.

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Cryptography CS 555

Cryptography CS 555. Topic 5: Pseudorandomness and Stream Ciphers. Outline and Readings. Outline Stream ciphers LFSR RC4 Pseudorandomness Readings: Katz and Lindell: 3.3, 3.4.1. Stream Ciphers. In One-Time Pad, a key is a random string of length at least the same as the message

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Stream Ciphers

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Randomness in Cryptography: A Deadly Pitfall

Randomness in Cryptography: A Deadly Pitfall. Nick Christoforidis & Konstantinos Rousis Information Security Module CITY College. Part I Defining Randomness. Nikos Christoforidis. Randomness is Everywhere in CS. On-line casinos: Shuffle Decks, Roll Dice, Spin the Roulette Wheel

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DS90LV001

XFEL 2D Pixel Clock and Control System Train Builder Meeting, UCL 11 May 2010 Erdem Motuk, Martin Postranecky , Matt Warren, Matthew Wing,. A-C Coupling & Latching Test Circuit -1-. -ve LVDS TEST OUTPUT. 4k7. LVDS output. SK26. SK25. 100pF. 8 12 U35 7 11.

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Compsci 6/101: I Python

Compsci 6/101: I Python. Techniques for looping Loop over sequences by sequence value Loop by indexing, or by index and value: enumerate While loop: as long as condition holds, e.g., game not over Techniques for transforming data One domain leads to solutions, other much harder

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Stream Ciphers

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Hybrid Cipher

Hybrid Cipher. Key. IV. Key. Hybrid Cipher. Plain. Cipher. Hybrid Cipher. Plain. Text. Text. Text. decryption. encryption. Note : IV used in encryption is not used in decryption. Features. Initialization Vector (IV) necessary only in Encryption Hash Integration

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