Advanced iOS Development: Keychain Access

Course details

Want to give your iOS app the ability to store local, encrypted data like IDs, passwords, or credits card numbers? In this course, instructor Bear Cahill shows you how. Bear demonstrates how to leverage the iOS keychain, which allows you to give your apps a mechanism to store bits of user data in an encrypted database. Using practical examples, he explains how to store keychain values, as well as how to retrieve, update, delete, and share data from the keychain. He wraps up with a series of code-based challenges and solutions that help you put these new concepts into practice. After completing this course, you'll have the knowledge you need to write code to use the keychain in your own iOS apps.

Topics include:
- Creating keychain queries
- Storing generic passwords
- Retrieving data from the keychain
- Handling search results
- Updating and deleting keychain values
- Working with keychain access groups

Concepts

Introduction

using keychain encryption in ios app
what you should know

iOS Keychain Services

user experience considerations
secure enclave
attribute keys and values

Storing Keychain Values

xcode project configuration
ios code overview
keychain query creation
storing a generic password
review keychain database
challenge- store an internet password
solution- how to store an internet password

Retrieving Data from the Keychain

keychain search concepts
keychain search query
searching in keychain
handling search results
challenge- fetch only data
solution- how to fetch only data

Updating and Deleting Keychain Values

update keychain preparation
updating values in the keychain
challenge- delete from keychain
solution- how to delete from keychain

Keychain Sharing

keychain access groups
sharing keychain data
app group data sharing
sharing data in app group

Building the App Challenges

overview of challenges
challenge- add user authentication
solution- add user authentication
challenge- add notes to keychain
solution- add notes to keychain
challenge- reading keychain items
solution- read keychain items
challenge- update and delete keychain items
solution- update and delete keychain items

Conclusion

next steps