'Mix columns' presentation slideshows

CS363

Week 3 - Wednesday. CS363. Last time. What did we talk about last time? DES Started AES. Questions?. Assignment 1. Project 1. Security Presentation. Omar Mustardo. AES. AES internals. AES keeps an internal state of 128 bits in a 4 x 4 table of bytes

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Computer Security: Principles and Practice

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Computer Security: Principles and Practice

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331 views • 21 slides

PIS : Unit II Advanced Encryption Standard (AES)

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Cryptography Trivia

Cryptography Trivia. Week two!. The Game. 8 groups of 2 5 rounds Math 1 Modern history Math 2 Computer Programming Analyzing and comparing Cryptosystems 10 questions per round Each question is worth 1 point. Math Round 1. Find a field with 7 elements. Find a field with 9 elements.

327 views • 16 slides

?? - Flow Chart

?? - Flow Chart. 16-bit key. Round 0. w0. w1. w2. w3. w4. w5. 16-bit plaintext. Round 2. W[0,1]. Add round key. Nibble substitution. Shift row. Round 1. Nibble substitution. W[4,5]. Add round key. Shift row. 16-bit ciphertext. Mix columns. W[2,3]. Add round key.

301 views • 6 slides