I need help on these.. Appreciate it. Module is System Security Part One: Short answer questions:1. Determine the entropy associated with the following method of generating a password.Choose, and place in this order, one lower case letter, following by one upper case letter,followed by two digits, followed by @, followed by two letters, each upper or lower case,and then followed by three symbols drawn from the set {$,9,5,v,w,J}. Finally, apply thehash function Tiger to give an output string in hex which will be used as a password.Assume random choices are made with equal likelihood of each symbol from the space being chosenfrom. So for a random digit there are 10 possibilities, each chosen with probability 1/10.2. Generate a BLP lattice structured system where the objects and subjects are appropriately levelledto give access consistent with the access control matrix below. You need to describe the process bywhich you obtain your lattice. R and W correspond, respectively, to read and append. You are touse only the mandatory BLP rules, and a default allow in place of the discretionary rule. Be sure toadd a level as necssary to ensure this is a lattice.0₁R0₂RS5 RS6 RS₁S₂ RS3 R RW RWS4 R03 04 05 06RR R RWW WWWWWRRRR 3. For the following collection of statements, describe the sets of actions, objects, and subjects; anddraw an access control matrix to represent the scenario.Alice can climb trees and eat apples.Bob can climb fences, eat apples, and wave flags.Trees can hurt apples.1Carol can jump waves and wave flags.

Answer: We have explain in very well how to find the entropy for the secure password

Part One: Short answer questions: 1. Determine the entropy associated with the following method of generating a password. Choose, and place in this order, one lower case letter, following by one upper case letter, followed by two digits, followed by @, followed by two letters, each upper or lower case, and then followed by three symbols drawn from the set {$,9,5,v,w,J}. Finally, apply the hash function Tiger to give an output string in hex which will be used as a password. Assume random choices are made with equal likelihood of each symbol from the space being chosen from. So for a random digit there are 10 possibilities, each chosen with probability 1/10.

Part One: Short answer questions: 1. Determine the entropy associated with the following method of generating a password. Choose, and place in this order, one lower case letter, following by one upper case letter, followed by two digits, followed by @, followed by two letters, each upper or lower case, and then followed by three symbols drawn from the set {$,9,5,v,w,J}. Finally, apply the hash function Tiger to give an output string in hex which will be used as a password. Assume random choices are made with equal likelihood of each symbol from the space being chosen from. So for a random digit there are 10 possibilities, each chosen with probability 1/10.

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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