what is going on I subsecriped to ge the information from chat Gpt I told you I need the answer as Human write

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
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what is going on I subsecriped to ge the information from chat Gpt I told you I need the answer as Human write

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Step 1: Differences between hash functions and keyed-hash functions

Answer:

The differences between Hash functions and Keyed-hash functions are,

1) Hash Functions:

i) Hash functions do not use secret keys.. They operate only on the input data.

ii) Hash functions are susceptible to collision attacks because two different inputs produce the same hash value.

iii) Hash functions are often used in digital signatures.

iv) Hash functions are deterministic because the same input will always produce the same output. 

v) It provides data integrity.

2) Keyed-hash Functions:

i) Keyed-hash functions use both the input data and a secret key.. Only the entities participating in the communication are given access to this key.

ii) Keyed hash functions are more resistant to collision attacks compared to standard hash functions due to the inclusion of a secret key.

iii)  Keyed hash functions are often used in authentication scenarios.

iv) Keyed-hash functions are basically non-deterministic because they can produce entirely different outputs on same input with different keys.

v) It provides data integrity and authentication.


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