How to Sign Apps
APK Signature Verification
In standard Android system, all the applications should be signed before installed to system. Please refer to Google's resource for detail.
In wizarPOS terminal, the system will also verify the certificate chain of the APK signatures, except the normal Android signature checking. So the developer should apply the development certificate to wizarPOS. Please refer to this document wizarPOSDevCertificateApplyGuide_en.pdf. After you get the CSR reply from wizarPOS, please import the certificate chain file to your key store. Then the APK signed by this key store can be installed to wizarPOS production terminal.
By default, the additional signature verification is not required in developing mode terminal. So you can use ADB to install and debug the normal Android APK to developing mode terminal.
The wizarPOS application root certificate can also be update to acquire's own application root certificate to let acquirer (terminal owner) control the terminal application totally.
How to sign app
Sign in an application project
Please refer to Google Sign APP
Sign an APK
wizarPOS provides a java signature tool. You can use it in PC, and help the developer to sign their APK. Please download the signature tool. Please make sure that you already have installed the JRE in your PC.
Run signature tool
In PC, run the follow command:
java -jar SignatureTools.jar sign [--keytype jks|pk8] [--apk <FILE>] [--out <FILE>] [--keystore <FILE.jks>] [--alias <String>] [--keyfile <FILE.pk8>] [--certs <FILE>] [--storepass <String>] [--keypass <String>]
SignatureTools.jar is the signature tool. The following table shows the parameters and their illustrations.
| Parameter | Value | Specification |
|---|---|---|
| --keytype | Jks or pk8 | The store path of the jks file or pk8 file |
| --apk | The file path of the apk before signed | The file path of the apk before signed |
| --out | The file path of the apk after signed | The file path of the apk after signed |
| --keystore | The file path of the jks file | When keytype is jks, this must be assigned |
| --alias | Alias name of private key | Alias name of private key in jks file |
| --keyfile | The file path of the pk8 file | When keytype is pk8, this is the private key file path |
| --certs | Certificates file path | When keytype is pk8, this is the certificate chain |
| --storepass | Password of keystore file | Password of keystore file |
| --keypass | password of private key | password of private key in jks file or pk8 file |