Advanced iOS Development: Keychain Access

Learn how to give your iOS app the ability to store local, encrypted data like IDs, passwords, and credit card numbers using the keychain.

Introduction

• Using keychain encryption in iOS app
• What you should know

1. iOS Keychain Services

• User experience considerations
• Secure enclave
• Attribute keys and values

2. 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

3. 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

4. Updating and Deleting Keychain Values

• Update keychain preparation
• Updating values in the keychain
• Challenge: Delete from keychain
• Solution: How to delete from keychain

5. Keychain Sharing

• Keychain access groups
• Sharing keychain data
• App group data sharing
• Sharing data in app group

6. 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