Modes of operation such as CFB and CBC require the use of an initial variable (IV), which must be known by both the sender and receiver. Discuss the pros and cons of the following suggestions for selection of IVs Randomly generate each IV; Use a counter that is incremented after each message as the IV; Use the last ciphertext block of the previous message as the IV
Modes of operation such as CFB and CBC require the use of an initial variable (IV), which must be known by both the sender and receiver. Discuss the pros and cons of the following suggestions for selection of IVs Randomly generate each IV; Use a counter that is incremented after each message as the IV; Use the last ciphertext block of the previous message as the IV
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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Modes of operation such as CFB and CBC require the use of an initial variable (IV), which must be known by both the sender and receiver. Discuss the pros and cons of the following suggestions for selection of IVs
Randomly generate each IV;
Use a counter that is incremented after each message as the IV;
Use the last ciphertext block of the previous message as the IV
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