KeychainTouchID: Using Touch ID with Keychain and LocalAuthentication

Last Revision:
Version 3.0, 2016-09-28
Updated for iOS 10
(Full Revision History)
Build Requirements:
Xcode 8.0; iOS 10.0 SDK or later
Runtime Requirements:
iOS 10.0 or later

The KeychainTouchID sample shows how to store Touch ID protected items to the keychain and how to query for those items with custom message prompts. You’ll see how to use the keychain item accessibility class, which invalidates items when the passcode is removed. You’ll also find out how to use the LocalAuthentication class to invoke Touch ID verification without involving the keychain.