A good cryptographic hashing algorithm should produce random outputs; that is, the probability of any given hash value should be approximately the same as any other for randomly chosen input data. What would be the consequence of using a hash algorithm whose outputs were not random? Consider, for example, the case where some hash values are twice as likely to occur as others.

A good cryptographic hashing algorithm should produce random outputs; that is, the probability of any given hash value should be approximately the same as any other for randomly chosen input data. What would be the consequence of using a hash algorithm whose outputs were not random? Consider, for example, the case where some hash values are twice as likely to occur as others.

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

See similar textbooks

Similar questions

Problem 1: After inserting 13 elements into a hash table the result looks as in Figure ??. Being a good student, you realize this is a problem. (i) What is the problem here? (ii) Give an example of a hash function that could give rise to this behavior. (iii) What would be a better hash function? 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 0 →30 →→2131 → 1 2 → 33 →15 → 63 → 266 388 Slika 1: Hash table.
Collisions can be reduced by choosing a hash function randomly in a way that is independent of the keys that are actually to be stored. A. False B. True
Does a hash table of size m always have the same number of linked lists? I've been trying to understand the function of a hash function, but I just can't seem to get it. Give a case study to demonstrate your point.
A hash file organization can have too many buckets. What are the reasons for this? What can be done to cut down on the number of bucket overflows?
The following criteria, given in descending order of importance, impact a hash table's Big-O performance:
Designing an effective open hash table requires the following:
I need the answer as soon as possible
This section provides a ranked list of variables that influence the Big-O performance of a hash table: