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Теория отраслевых рынков (Industrial Organization)

About this course: Курс посвящен факторам, влияющим на размер компаний и структуру рынка. Почему на одних рынках преобладают малые компании, а на другом крупные? Продавцы принимают решения стратегически, однако их стимулы в свою очередь зависят от структуры рынка и от предшествующих решений. Как разделить между зоной предопределенных и свободных решений? Например, сговор как модель ценового поведения – предопределен структурой рынка или служит результатом свободного волеизъявления? Способны ли укоренившиеся на рынке продавцы препятствовать входу новичков, защищая свою рыночную долю и свою прибыль? Каковы лучшие способы предотвращения ценовых сговоров продавцов? Нужно ли (или по крайней мере желательно) запрещать или ограничивать слияния между крупными продавцами? Есть ли необходимость для государственной политики налагать ограничения на условия договоров между производителем и дистрибьютором? Как в этих условиях должна быть организована государственная политика (применение антимоноп…

Networking and Security in iOS Applications

Networking and Security in iOS Applications

About this course: You will learn to extend your knowledge of making iOS apps so that they can securely interact with web services and receive push notifications. You'll learn how to store data securely on a device using Core Data. You’ll also learn to securely deploy apps to the App Store and beta users over-the-air. The format of the course is through a series of code tutorials. We will walk you through the creation of several apps that you can keep as a personal app toolbox. When you make your own apps after this course, you can bring in these capabilities as needed. When necessary we pop out of the code tutorials to talk about concepts at a higher level so that what you are programming makes sense. Upon completing this course, you will be able to: 1. Post Facebook, Twitter, Sina Weibo, Tencent Weibo messages to social media using single sign-on on behalf of a user. 2. Use OAuth 2.0 to securely authenticate to Instagram and retrieve photos on behalf of a user 3. JSON 4. Describe JSON’s syntax 5. Write well-formed JSON 6. Work with JSON data objects in Objective-C 7. Appropriately set the security settings for App Transport Security in iOS 9.0 8. Use http, https and https with perfect forward secrecy to fetch web resources 9. Obtain permissions to receive local push notifications 11. Write an app that can send and receive local push notifications 12. Obtain permissions to receive remote push notifications 13. Write an app that can receive remote push notifications 14. Authenticate using Apple’s cryptographic services such that the developer can use 3rd party infrastructure to send remote push notifications to their app. 15. Securely store data on the user’s device. 16. Authenticate using Apple’s cryptographic services such that they can deploy an app to the app store

Created by:  University of California, Irvine

  • Don Patterson
    Taught by:  Don Patterson, Associate Professor
    Informatics and Computer Science

  • Sam Kaufman
    Taught by:  Sam Kaufman, Partner at Gradient
Basic Info
Language
English
How To PassPass all graded assignments to complete the course.
User Ratings
Average User Rating 4.6See what learners said
Syllabus
WEEK 1
Welcome!
Welcome to this course on Networking and Security in iOS Applications. Our focus in this course is very practitioner oriented. We want to get you up and running using social networking integration with single sign-on, basic OAuth2 functionality, secure JSON web APIs, cryptographically secured push notifications, and secure data storage so that you can get apps into the iTunes ecosystem and out into the marketplace. This course will have several code sessions in which we walk you through the process of building apps, some of which you will also build for peer review assignments. Interspersed with the tutorials we will take time-outs to cover the basics of some concepts that might be mysterious without a more formal treatment. Our hope is that you come out of this course knowing more (of course!) and having several projects that you can refer to in the future when you want to incorporate these techniques into your apps - your personal app toolbox. The intensity picks up from the previous course in this Specialization, so get ready!
15 videos6 readings
  1. Reading: Course Overview
  2. Video: Welcome!
  3. Reading: Pre-Course Survey
  4. Reading: Getting Help
  5. Reading: Twitter App Orientation
  6. Video: Twitter App: Setting up the User Interface
  7. Video: Twitter App: Connecting the U/I
  8. Video: Twitter App: Styling the U/I via ".layer"
  9. Video: Twitter App: Social.Framework and building a UIAlertController
  10. Video: Twitter App: Closing a window with UIAlertAction
  11. Video: Twitter App: Checking for "Single Sign On"
  12. Video: A general pattern for pop-up alerts
  13. Video: Twitter App: Tweet with SLComposeViewController
  14. Video: Twitter App: Reviewing what we accomplished
  15. Reading: Facebook Orientation
  16. Video: Facebook: Adding an additional UIAlertAction
  17. Video: Facebook: Using SLComposeViewController to Post
  18. Reading: Future proofing
  19. Video: Future Proofing with the UIActivityViewController
  20. Video: Simplifying the Interface - Less Clicks!
  21. Video: Peer-Review 01: Your turn!
Graded: Social Networking App
WEEK 2
Using Secure Web APIs: an Instagram Case Study
Now it's time to consider what we are going to do if we want to work with web services that aren't deeply integrated into iOS. There are hundreds (thousands?!?!) of them. Most of them require authentication via the OAuth 2.0 protocol. In this week's lessons we will walk through an example of getting a photo from Instagram on behalf of a user. This week is also a code tutorial in preparation for your peer review assignment, but in the middle we need to step back from coding to cover some basics: How do we use a UIImageView? What is OAuth 2.0 anyway? What is JSON and how do we read it? What's the big deal about http vs https anyway?
12 videos1 reading
  1. Video: Overview of Instagram App
  2. Video: Building the project with Cocoapods
  3. Video: Intro to UIImageView
  4. Video: Laying out the Interface
  5. Video: OAuth 2.0
  6. Video: Accessing a web service API
  7. Video: JSON
  8. Video: Custom URL Schemes
  9. Video: NSAppTransport in iOS 9
  10. Video: Network Security Considerations
  11. Video: Getting data with NSURLSession
  12. Video: Calling and Parsing API JSON data
  13. Reading: Two Updates on the Instagram API
Graded: 02 Instagram Network API App
WEEK 3
Don't be so pushy!
In this week we will look at several aspects of push notifications. Those are those alerts that show up at the top of your iOS interface when an app wants to get your attention. There are several ways that they can be initiated. They can be initiated from an app on a local device, or they can be initiated by a remote server somewhere on the internet. Obtaining permission to post those notifications requires lots of steps, certificates, passwords etc. We'll walk you through it all. This week we start with a high-level overview of the iOS app lifecycle. Then we will do three code tutorials. The first will be the one that you will need to do the peer-review assessment. It's a basic countdown timer that sends a notification at a specific time. The second will show you how to make it all fancy with custom actions. The final one will be for remote notifications. Since remote notifications require an Apple developer account ($$$) we won't assess you on it, but if you have one you can try it out on your own and add it to your personal app toolbox.
11 videos1 reading
  1. Video: App Lifecycle
  2. Video: Push notifications: local Part 1
  3. Video: Push notifications: local Part 2
  4. Video: Push notifications: actions
  5. Reading: Remote Push Notification Has Changed
  6. Video: Push notifications: remote Part 01
  7. Video: Push notifications: remote Part 02
  8. Video: Push notifications: remote Part 03
  9. Video: Push notifications: remote Part 04
  10. Video: Push notifications: remote Part 05
  11. Video: Push notifications: remote Part 06
  12. Video: Intro to Peer Review Assignment 03
Graded: 03 Push Notification Alarm
WEEK 4
Storing Data
In this week we look at method of securely storing data on the iOS platform called Core Data.  
9 videos1 reading
  1. Video: Core Data: Introduction
  2. Video: Core Data: Setting Up Your Project
  3. Video: Core Data: Building the Model
  4. Video: Core Data: Wiring the UI to CoreData
  5. Reading: The Full Core Data Example
  6. Video: Enrichment: The Full Core Data Example 1
  7. Video: Enrichment: The Full Core Data Example 2
  8. Video: Peer Review 04 Instructions: Storing Data App
  9. Video: Deploying to the App Store
  10. Video: App Store Analytics
Graded: 04 Secure Data Storage App
Graded: Final Exam
How It Works
Coursework
Coursework
Each course is like an interactive textbook, featuring pre-recorded videos, quizzes and projects.
Help from Your Peers
Help from Your Peers
Connect with thousands of other learners and debate ideas, discuss course material, and get help mastering concepts.
Certificates
Certificates
Earn official recognition for your work, and share your success with friends, colleagues, and employers.
Creators
University of California, Irvine
Since 1965, the University of California, Irvine has combined the strengths of a major research university with the bounty of an incomparable Southern California location. UCI’s unyielding commitment to rigorous academics, cutting-edge research, and leadership and character development makes the campus a driving force for innovation and discovery that serves our local, national and global communities in many ways.
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