Authentication using fingerprint in your iOS application

Authentication for iPhone Application (Using Touch ID and Face ID)

- Nowadays most of the applications require authentication in the mobile domain for device owners to verify their identity by TouchID or FaceID.
- And users also want to secure their data from anonymous user.
- Apple introduced biometric authentication fingerprint scanner technology in the iPhone 5s to allow users to unlock their devices and after that apple introduced iPhone X and iOS 11 biometric authentication using facial recognition.
- The TouchID/FaceID is on a new framework Local Authentication, It’s necessary to say that this framework provides facilities for requesting authentication from users with specified securities policies.
- Local Authentication framework provide a custom-made view for users can enter credentials using TouchID or FaceID.
- So we create a very simple file for authentication of your application and it is very easy to use just follow below steps.

Requirements
Swift 3.0+
iOS 8.0+
Xcode 8+

How to use iPhone Application

Step-1: just drag and drop MTFingerPrint.swift into your project folder.

Step-2: Local Authentication Framework
Select Project -> Targets -> Linked Frameworks and Libraries -> Add LocalAuthentication.framework

Step-3: Add following code into the viewDidLoad method of view-controller file where you want to add authentication.

MTFingerPrint.sharedInstance.authenticationWithTouchID()
MTFingerPrint.sharedInstance.delegate = self

Step-4: Add following delegate method into your view-controller file

extension yourViewControllerName : FingerPrintDelegate {

func fingPrintSuccess() {

if DeviceType.IS_IPHONE_X {

DispatchQueue.main.async {
print("Face ID is verified.")
}

} else {
DispatchQueue.main.async {
print("Touch ID is verified.")
}
}
}

func fingerPrintFailed() {

if DeviceType.IS_IPHONE_X {

DispatchQueue.main.async {
print("Face ID is not verified.")
}
} else {
DispatchQueue.main.async {
print("Touch ID is not verified.")
}
}
}

func fingerPrintNotAvailable() {

if DeviceType.IS_IPHONE_X {

//self.faceSettingAlert()

} else {

//self.fingSettingAlert()

}
}
}

iPhone Device Screenshot

iPhoneX Device Screenshot

About Author

Manektech Team

ManekTech Team

ManekTech is a well-known software development and IT consulting company, providing custom software, website, and mobile app development services. ManekTech has own content writing and development team who writes content on various and trending technology that it serves currently.

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