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PassiveFaceLiveness

Privacy Policy and Terms & Conditions of Use

When using our plugin, please make sure that you agree with our Privacy Policy and our Terms and Conditions of Use.

Pre-requirements

Minimum configuration
Version
Flutter
1.12+
Dart
2.12+
Android API
21+
iOS
11.0+
If you use Dart in a version below 2.12, check the compatible version here.

Settings

Android

In the file ROOT_PROJECT/android/app/build.gradle, add:
android {
​
...
dataBinding.enabled = true
compileOptions {
sourceCompatibility = JavaVersion.VERSION_1_8
targetCompatibility = JavaVersion.VERSION_1_8
}
}
​
//To perform layout customization from the SDK import the following libraries
dependencies {
implementation "androidx.camera:camera-view:1.2.1"
//native Android SDK that the plugin implements
implementation 'com.combateafraude.sdk:passive-face-liveness:6.0.0-rc03'
​
//design libraries that you will use in your layout (these are used in our example template for customization)
implementation 'com.google.android.material:material:1.2.1'
implementation 'androidx.constraintlayout:constraintlayout:2.0.2'
}

iOS

In the ROOT_PROJECT/ios/Podfile, add to the end of the file:
source 'https://github.com/combateafraude/iOS.git'
source 'https://cdn.cocoapods.org/' # or 'https://github.com/CocoaPods/Specs' if CDN is down
Finally, add the camera permission to the file ROOT_PROJECT/ios/Runner/Info.plist:
<key>NSCameraUsageDescription</key>
<string>To capture the selfie</string>
To enable text and voice in Portuguese, in your project, in the ROOTPROJECT/ios directory, open the .xcworkspace file in Xcode and add in Project > Info > Localizations the language Portuguese (Brazil).

Flutter

Add the plugin to your ROOT_PROJECT/pubspec.yaml file:

Stable

​
dependencies:
passive_face_liveness:
git:
url: https://github.com/combateafraude/Flutter.git
ref: passive-face-liveness-v4.30.0

Release Candidate

dependencies:
passive_face_liveness:
git:
url: https://github.com/combateafraude/Flutter.git
ref: passive-face-liveness-v5.0.0-rc03

Utilization

PassiveFaceLiveness passiveFaceLiveness = new PassiveFaceLiveness(mobileToken: mobileToken);
​
// Other customization parameters
​
PassiveFaceLivenessResult passiveFaceLivenessResult = await passiveFaceLiveness.start();
​
if (passiveFaceLivenessResult is PassiveFaceLivenessSuccess) {
// The SDK was successfully closed and the selfie was captured
} else if (passiveFaceLivenessResult is PassiveFaceLivenessFailure) {
// The SDK was closed due to some failure and the selfie was not captured
} else {
// The user simply closed the SDK, with no result
}

Disabling Security Validations for Testing

We are constantly taking actions to make the product more and more secure, mitigating a number of attacks observed in the capture process and, consequently, reducing as many possible identity frauds as possible. The SDK has some blocks that may prevent its execution in certain contexts. To disable them, you can use the methods as shown in the example below:
PassiveFaceLivenessAndroidSettings androidSettings =
PassiveFaceLivenessAndroidSettings(
emulatorSettings: true,
rootSettings: true,
useDeveloperMode: true,
useAdb: true,
useDebug: true,
);
passiveFaceLiveness.setAndroidSettings(androidSettings);
Attention! Disabling security validations is recommended for test environments only. For publishing your application in production, we recommend using the default settings.

General customizations

PassiveFaceLiveness
.setPeopleId(String peopleId)
CPF of the user who is using the plugin to be used for fraud detection via analytics
.setPersonName(String personName)
Binds a proof-of-life attempt to a name
.setPersonCPF(String personCPF)
Binds a proof-of-life attempt to a cpf
.setAnalyticsSettings(bool useAnalytics)
Enables/disables data collection for maximizing anti-fraud information. Default is true
.setAudioSettings(bool enable, String audioResIdName)
Enables/disables sounds. Allows you to customize the audio used by the SDK. If you want to change the SDK's audio, add the audio file in ROOT_PROJECT/android/app/src/main/res/raw/ with the desired name below and parameterize it
.setNetworkSettings(int requestTimeout) Changes the default network settings. The default is 60 seconds
.setPreviewSettings(PreviewSettings previewSettings)
Preview for photo quality check
.setCaptureMode(VideoCapture videoCapture, ImageCapture imageCapture)
Sets the capture settings
.setGetImageUrlExpireTime(String expireTime)
Sets how long the image URL will last on the server until it is expired. Expect to receive a time interval between "30m" to "30d". The default is 3h
.setMessageSettings(MessageSettings messageSettings)
Allows you to customize the messages displayed in the "status" balloon during the capture and analysis process
.setCurrentStepDoneDelay(bool showDelay, int delay)
Delay the activity after each step is finished. This method can be used to display a success message on the screen itself after the capture, for example. Default is false
.setAndroidSettings(PassiveFaceLivenessAndroidSettings androidSettings)
Customizations only applied on Android
.setIosSettings(PassiveFaceLivenessIosSettings iosSettings)
Customizations only applied on iOS
.setEyesClosedSettings(bool enable, double threshold)
Lets you customize the eyes-open validation in the SDK
.setCaptureProcessingErrorMessage(@NonNull @StringRes Integer message)
Allows you to customize the message displayed when a processing problem or error occurs in the API response.
ImageCapture constructor
bool use
Enables/disables the capture of a frame. Default is true
int beforePictureMillis
Duration in milliseconds between the first detection of the face and the actual capture of the picture. The default is 0 ms
int afterPictureMillis
Duration in milliseconds between capturing the picture and sending it to the server to keep the face and sensors valid. The default is 2000 ms
VideoCapture constructor
bool use
Enables/disables video capture. Default is false
int time
This sets the time of the video that will be captured. The default is 3s
PreviewSettings
bool show
Enable/Disable preview
String title
Title
String subTitle
Subtitle
String confirmLabel
Text of the confirmation button
String retryLabel
Text of the retry button
Example of use
PreviewSettings previewSettings = new PreviewSettings(
show: true,
title: "Is the photo good?",
subTitle: "See if the photo is sharp",
confirmLabel: "Yes, it's good!",
retryLabel: "Take it again");
passiveFaceLiveness.setPreviewSettings(previewSettings);
MessageSettings
String stepName
Default: "Registro Facial"
String holdItMessage
Default: "Segure assim"
String faceNotFoundMessage
Default: "Não encontramos nenhum rosto"
String faceTooFarMessage
Default: "Aproxime o rosto"
String faceTooCloseMessage (Android only)
Default: "Afaste o rosto"
String faceNotFittedMessage
Default: "Encaixe seu rosto"
String multipleFaceDetectedMessage
Default: "Mais de um rosto detectado"
String verifyingLivenessMessage
Default: "Verificando selfie…"
String invalidFaceMessage
Default: "Ops, rosto inválido. Por favor, tente novamente"
String? sensorStabilityMessage
Default: "Mantenha o celular parado"
String? captureProcessingErrorMessage
Default: "Ops, tivemos um problema ao processar sua imagem. Tente novamente."
String multipleFaceDetectedMessage
Default: "Mais de um rosto detectado"
String? sensorOrientationMessage (Android only)
Default: "Celular não está na vertical"
String eyesClosedMessage (Android only)
Default: "Seus olhos estão fechados"
String notCenterXMessage (Android only)
Default: "Centralize seu rosto na vertical"
String notCenterYMessage (Android only)
Default: "Centralize seu rosto na horizontal"
String notCenterZMessage (Android only)
Default: "Seu rosto não está ajustado à máscara"
Example of use
MessageSettings messageSettings = new MessageSettings(
stepName: "Example message",
faceNotFoundMessage: "Example message",
faceTooFarMessage: "Example message",
faceTooCloseMessage: "Example message",
faceNotFittedMessage: "Example message",
multipleFaceDetectedMessage: "Example message",
verifyingLivenessMessage: "Example message",
holdItMessage: "Example message",
invalidFaceMessage: "Example message");
passiveFaceLiveness.setMessageSettings(messageSettings);

Android

PassiveFaceLivenessAndroidSettings constructor
PassiveFaceLivenessCustomizationAndroid customization
Customization of the Android layout of the activity
SensorSettingsAndroid sensorSettings
Customization of the capture sensor settings
int manualCaptureTime
Changes the time for the display of the manual capturing button. The default is 20000 milliseconds
bool enableSwitchCameraButton
Allows you to enable or disable the camera flip button. Default is True
bool enableGoogleServices
Allows you to enable/disable SDK features that consume GoogleServices in the SDK, we do not recommend disabling the services because of security loss. Default is True
bool emulatorSettings
Allows you to enable/disable the use of emulated devices in the SDK. We recommend disabling the use of emulators for security reasons. Default is False
bool rootSettings
Allows you to enable/disable the use of root devices in the SDK. We recommend disabling the use of these devices for security reasons. Default is False
bool useDeveloperMode
Allows you to enable/disable the use of devices with Android developer mode enabled. We recommend disabling the use of these devices for security reasons. Default is False
bool useAdb
Allows you to enable/disable the use of the Android Debug Bridge (ADB) debug mode. We recommend disabling the use of these devices for security reasons. Default is False
bool enableBrightnessIncrease
Enables/disables device brightness increment on opening the SDK
PassiveFaceLivenessCustomizationAndroid constructor
String styleResIdName
Name of the style resource that defines the colors of the SDK. For example, if you want to change the SDK colors, create a style in ROOT_PROJECT/android/app/src/main/res/values/styles.xml with the name R.style.my_custom_style following the template and parameterize "my_custom_style".
String layoutResIdName
Name of the layout resource that will replace the default SDK layout. For example, if you want to change the SDK layout, create a layout in ROOT_PROJECT/android/app/src/main/res/layout/my_custom_layout.xml following the template and parameterize "my_custom_layout". Check the import libraries mentioned here
String greenMaskResIdName
Name of the drawable resource to replace the default green mask. If you are going to use this parameter, use a mask with the same cutting area, it is important for the detection algorithm. For example, save the mask image in ROOT_PROJECT/android/app/src/main/res/drawable/my_custom_green_mask.png and parameterize "my_custom_green_mask".
String redMaskResIdName
Name of the drawable resource to replace the default red mask. If you are going to use this parameter, use a mask with the same cutting area, it is important for the detection algorithm. For example, save the mask image in ROOT_PROJECT/android/app/src/main/res/drawable/my_custom_red_mask.png and parameterize "my_custom_red_mask".
String whiteMaskResIdName
Name of the drawable resource to replace the default white mask. If you are going to use this parameter, use a mask with the same cutting area, it is important for the detection algorithm. For example, save the mask image in ROOT_PROJECT/android/app/src/main/res/drawable/my_custom_white_mask.png and parameterize "my_custom_white_mask".
MaskType maskType
Defines the type of mask used in the captures. There are two types: MaskType.DEFAULT, with the dotted pattern, and MaskType.NONE, which removes the mask completely. The default is MaskType.DEFAULT
SensorSettingsAndroid constructor
SensorStabilitySettingsAndroid sensorStabilitySettings
Stability sensor settings to be applied in all SDK steps
sensorOrientationAndroid sensorOrientationAndroid
Orientation sensor settings to be applied in all SDK steps
SensorStabilitySettingsAndroid constructor
int stabilityStabledMillis
How many milliseconds the mobile must stay at the correct threshold to be considered stable. The default is 1500 ms
double stabilityThreshold
Stable/unstable threshold, in m/s² variation between the last two sensor collections. The default is 0.7 m/s².
SensorOrientationAndroid constructor
double stabilityThreshold
Stable/unstable threshold, in m/s² variation between the last two sensor collections. The default is 4 m/s².

iOS

PassiveFaceLivenessIosSettings constructor
PassiveFaceLivenessCustomizationIos customization
SDK visual customization
int beforePictureMillis
Duration in milliseconds between the first detection of the face and the actual capture of the picture
SensorStabilitySettingsIos sensorStability
Stability sensor settings to be applied in the SDK
bool enableManualCapture
Enables manual capture mode
double timeEnableManualCapture
Sets time (in seconds) to display manual capture button
double compressionQuality
Allows you to set the quality in the compression process. By default all captures are compressed. The method expects values between 0 and 1.0 as a parameter, 1.0 being the best quality compression (recommended).The default is 1.0
String resolution
Allows setting the capture resolution. The method takes as parameter a String IosResolution (default is hd1280x720), which has the following options:
Resolution
Description
low
Specifies appropriate capture settings for output video and audio bit rates suitable for 3G sharing
medium
Specifies the appropriate capture settings for the output video and audio bitrates suitable for sharing over WiFi
high
Specifies appropriate capture settings for high-quality video and audio output
photo
Specifies appropriate capture settings for high-resolution photo quality output
inputPriority
Specifies appropriate capture settings for high-resolution photo quality output
hd1280x720
Specifies the appropriate capture settings for video output at 720p quality (1280 x 720 pixels)
hd1920x1080
Capture settings suitable for 1080p (1920 x 1080 pixels) quality video output
hd4K3840x2160
Capture settings suitable for 2160p (3840 x 2160 pixels) quality video output
PassiveFaceLivenessCustomizationIos constructor
String? colorHex
The SDK's theme color. For example, if you want to use the color black, use "#000000".
String? greenMaskImageName
Name of the image to replace the default green mask. Remember to add the image in Assets Catalog Document in your XCode project
String? whiteMaskImageName
Name of the image to replace the default white mask. Remember to add the image in Assets Catalog Document in your XCode project
String? redMaskImageName
Name of the image to replace the default red mask. Remember to add the image in Assets Catalog Document in your XCode project
String? closeImageName
Name of the image to replace the close button in the SDK. Remember to add the image in Assets Catalog Document in your XCode project
bool? showStepLabel
Flag indicating whether to show the label of the current step
bool? showStatusLabel
Flag indicating whether to show the current status label
double? buttonSize
Value that sets the size of the "close" button in the SDK
String? buttonContentMode
Attribute that defines the content mode of the "close" button in the SDK. Choose from these values.
SensorStabilitySettingsIos constructor
String message
String to be shown when the cell phone is not stable
double stabilityThreshold
Lower threshold between stable/unstable, in m/s² variation between the last two sensor collections. The default is 0.3 m/s².

Collecting the result

The PassiveFaceLiveness return object is of abstract type PassiveFaceLivenessResult. It can be an instance of PassiveFaceLivenessSuccess, PassiveFaceLivenessFailure, or PassiveFaceLivenessClosed.

PassiveFaceLivenessSuccess

Field
​
String imagePath
Full address of the image on the device
​
String capturePath
Full address of the video on the device. If the capture format is not video, the return is null
​
String imageUrl
URL of the image temporarily stored in the CAF servers
​
String signedResponse
Signed response from the CAF server that confirmed that the captured selfie has a real face (not a photo or video). Use this parameter if you want an extra layer of security by checking that the signature of the response is not broken, caused by an interception of the request. If it is broken, there is a strong indication of request interception
​
String trackingId
Identifier of this run on our servers. If possible, save this field and send it along to our API. This way we will have more data about how the user behaved during the execution
Will be null if the user sets useAnalytics = false or the analytics calls do not work

PassiveFaceLivenessFailure

Field
String message
Friendly message explaining why the SDK failed
String type
Type of fault that shut down the SDK
The existing fault types are:
  • InvalidTokenReason: when the token entered is invalid. It should not occur in a production environment;
  • PermissionReason: when some mandatory permission was not granted by the user. It will only occur in a production environment if your app does not ask the user or the user manually disables it before starting;
  • NetworkReason: server connection failure. It will occur in production if the user's device is not connected to the Internet;
  • ServerReason: failure in some request to our servers.
  • SecurityReason: when the device is not safe to run the SDK.
  • StorageReason: when the device does not have enough space to capture a photo. This can happen in production;
  • LibraryReason: when some internal failure made it impossible to run the SDK. It may occur due to configuration errors in the project, and should not occur in production;
Customizing iOS view
For iOS customization, it is required that the Flutter plugins are added locally to the project. The customization is performed natively with the ViewCode approach.
****Click here **** and access the example with a guide to using this feature.