Assignment Task
1. Determine the entropy associated with the following method of generating a password. 1 Mark 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.
2. Generate a BLP lattice–structured system where the objects and subjects are appropriately levelled to give access consistent with the access control matrix below. You need to describe the process by which you obtain your lattice. R and W correspond, respectively, to read and append. You are to use only the mandatory BLP rules, and a default allow in place of the discretionary rule. Be sure to add a level as necssary to ensure this is a lattice.
A-Plus Writing Help For University Students
Get expert assistance in any academic field. All courses and programs covered.
Get Help Now!Welcome to our Online Essay Writing Agency. Securing higher grades costing your pocket? Order your assignment online at the lowest price now! Our online essay writers are able to provide high-quality assignment help within your deadline. With our homework writing company, you can order essays, term papers, research papers, capstone projects, movie review, presentation, annotated bibliography, reaction paper, research proposal, discussion, or another assignment without having to worry about its originality – we offer 100% original content written completely from scratch
We write papers within your selected deadline. Just share the instructions
