Consider a simple authentication protocol below. A simple authentication protocol (1) C➜ AS: III || PI || III (2) AS C: TTTTTT (3) CV: III || TTTTTT TTTTTT= E(KI, [III || PI ||III]) where C = client, AS = authentication server, V = server, IDC - identifier of user on C, IDV = identifier of V, PC = password of user on C, KV = secret encryption key shared by AS and V 1. 11. What are the two main problems in this simple protocol? Suggest possible improvements to the protocol to address the problems.

Consider a simple authentication protocol below. A simple authentication protocol (1) C➜ AS: III || PI || III (2) AS C: TTTTTT (3) CV: III || TTTTTT TTTTTT= E(KI, [III || PI ||III]) where C = client, AS = authentication server, V = server, IDC - identifier of user on C, IDV = identifier of V, PC = password of user on C, KV = secret encryption key shared by AS and V 1. 11. What are the two main problems in this simple protocol? Suggest possible improvements to the protocol to address the problems.

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

Publisher specifies one or more topics or channels for which they would like to receive messages. Question 1 options: True False
Food-Stuff is a web-based online food ordering application. By using this application the registered user can access the account with valid credentials. User can choose the food items according to categories, place order and online payment options are available to user. User can track their orders with the food details. Keep this scenario in your mind and answer the following questions. a) Identify functional requirements for user, other than registration and login from given scenariob) Provide an ISO 9126 based Quality Model for Food-Stuff ordering system
None
User account2. The system allows user to register and create the account3. Users allowed by system to edit & modify the account4. System allows users to view products5. System allows users to comment on product6. Perform sentiment analysis7. Use APS to connect to product8. Review website to collect comment of product9. System dynamically analyze command of users10. Matching keyword in database11. system allots rank to product as good, bad and ugly12. view product review13. users can use system to view product14. manage users account15. all users account allowed to be added or modified , and deleted by administrator Non Functional Requirements: 1. Efficiency 2. Interoperable 3. Portability 4. Security refering to previous reqiirements answer the question Question : Event Response (Use Case List)?
Please help with the following: Provide a acceptance test to the following User Story As an employee, I want to be able to add a blog post so that I can keep the customers informed about the products Given that they are logged in as an employee when trying to add a blog post to update customers then they would be able to do so. <?>
What is an ID column?
Q3: Data hazard should be detected before handling. In which part the detection can be detected and how?
User account2. The system allows user to register and create the account3. Users allowed by system to edit & modify the account4. System allows users to view products5. System allows users to comment on product6. Perform sentiment analysis7. Use APS to connect to product8. Review website to collect comment of product9. System dynamically analyze command of users10. Matching keyword in database11. system allots rank to product as good, bad and ugly12. view product review13. users can use system to view product14. manage users account15. all users account allowed to be added or modified , and deleted by administrator Non Functional Requirements: 1. Efficiency 2. Interoperable 3. Portability 4. Security Part A: Answer the following questions prefer to the previous requirements? Question : Modeling System Requirements (Use-Case Narrative) : (1. Use-Case Model Diagram for all the business requirements that you have documented in phase 1.2.…
Match the Security Controls to the following (see attached photo) Unsupervised Lab Office Data Center Employee Latop You can only use the security controls once.
Define the terms integrity and permission limitations.
Answer questions 1 to 2 based on the following case study. Betty wants to borrow books using a Public Library App. As a borrower, she needs to register to the app by providing her name, matriculation number, and address. Upon registration, she has to log in to borrow books. Meanwhile, a donor does not need to register an account and log into the app. The donor can donate books by giving information about the books. The donor has the option to print their donation record. 1- What are the most suitable use cases for Public Library App? a. register as borrower, login, borrow book, donate book, print donation record. b. provide name, provide matriculation number, provide address, click register, login, give book information, click donate, print donation record. c. provide name, provide matriculation number, provide address, login, give book information, borrow book. d. register as borrower, login, borrow book, donate book, print donation record, give book name, give textbook quantity,…
What is the best way to track the information requests?