In AES, a 128-bit key is expanded to 44 words which are used for each round. If the round keyEB C2 83 20 A5 7D 3A C2 41 2A F6 62 7E 8F 23 2D is for the 5th round, calculate the roundkeyfor round 6

Answered: In AES, a 128-bit key is expanded to 44…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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In AES, a 128-bit key is expanded to 44 words which are used for each round. If the round key
EB C2 83 20 A5 7D 3A C2 41 2A F6 62 7E 8F 23 2D is for the 5th round, calculate the roundkey
for round 6

Expert Solution

Step 1: Introduction

-> AES is a symmetrical block cipher algorithm that takes plain text in blocks of 128 bits and converts them to cipher text using keys of 128, 192, and 256 bits. Since the AES is considered secure, it is in the worldwide standard.

-> AES is a cryptographic algorithm used to protect electronic data. It is a symmetric block cipher that can encrypt and decrypt information. Encryption converts data to an unintelligible form called ciphertext. Decryption converts the data back into its original form called plaintext.

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