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This article describes how to brand a TruID client that shall be used with Smart ID Digital Access component.

TruID is a client application that generates One-Time Passwords (OTP). There is one generic TruID client and one TruID client for Android.

  • In the generic TruID client both text and graphics can be branded. The generic TruID client is located on the distribution disks under <DISK>/Client/Java/TruID.jar. This file is a ZIP file containg code, graphics and texts for the client. 
  • In the TruID for Android client only the graphics can be branded. The application is an apk file that is packed using the zip format. 

Prerequisites

Expand
titlePrerequisites

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Step by step instructions

Expand
titleGeneric TruID client, update graphics
  1. Unpack the zip-file in the images directory.
  2. To update the icon used for the application, update icon.png.
  3. To update the logotype, update the files 0.png (the largest logotype), 1.png (the second largest logotype) and so on.
  4. To update the black-and-white logotypes, update the files in the images/mono directory in the same way.
Note

When changing any files in the zip archive, the corresponding JAD file has to be updated with the new file size of the JAR file.



Expand
titleGeneric TruID client, update texts
  1. Find the locale for the client in the locale directory.

  2. Use the file en.properties as a template for other locale files (en.properties isfor English, this is the default).

  3. If Swedish shall be used, create a file called sv.properties in the locale directory. When the application is started, the application will use the Swedish locale for showing all texts.


Panel
titleExample

The client reports the current locale when opening the “about” page in the client. For example, if the phone’s locale is set to Swedish, the about page will report “sv” as language.



Expand
titleTruID for Android client, update graphics
  1. Acquire the application and unzip the contents.

  2. Modify any of these images in the res/drawable directory:

    Filename

    Resolution

    Usage

    pw_eye_smal.png

    32x32

    The low-res application icon used when displaying the application

    pw_eye.png

    48x48

    The standard application icon used when displaying the application

    pw_eye_large.png

    72x72

    The high-res application icon used when displaying the application

    pw_logo_android.png

    Logo used in application. Default is the PortWise logo.


After the graphics has been updated a new application has to be created. These are the tools used to create the new application:

  • keytool, jarsigner and zipalign (3:rd party tools).
    • keytool and jarsigner comes from the JDK.
    • zipalign comes from the Android SDK. Download and install SDK according to its documentation to use zipalign.

  1. Remove the old signature by removing the META-INF directory.

  2. Pack up the application:

    1. Zip up all the files into a zip file with the modified graphics.
    2. Rename the zip file to TruID-unaligned.apk.

  3. Sign the application. All Android applications must be signed.

    1. Generate key to be used for signing. It is important that the signature keys are safely stored.

      Code Block
      keytool -genkey -v -keystore my-release-key.keystore -alias alias_name -keyalg RSA -validity 10000


    2. Sign the .apk file

      Code Block
      jarsigner -verbose -keystore my-release-key.keystore TruID-unaligned.apk alias_name


  4. Align the signed apk.

    Code Block
    zipalign -v 4 TruID-unaligned.apk TruID.apk

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