If you would like to build and sign your app with your upload key, continue to the section about how to Sign your app with your upload key. If only want to generate the key and keystore, click Cancel. Sign your app with your key. If you already have an upload key, use it to sign your app. How to create an Android Keystore file The following tutorial guides you through the steps to generate a keystore file required to build an Android app for submission to the Google Play Store. We will be using the software KeyStore Explorer to generate the keystore file.

This procedure uses the Java keytool utility to generate a key and save it to a Java keystore.

NOTE:

• The CA you use might have specific options required for creating an HTTPS certificate. /generate-git-ssh-key-mac.html. Review the instructions provided by the CA before creating your key pair.

• DSA keys used in Reflection Gateway server certificates must be either 2048 or 3072 bits. RSA keys must be between 2048 and 4096 bits.

Android Keystore Generate Key Pair 1

To generate a new public/private key pair in a Java keystore

1. Use the -genkeypair option to generate a key and save it to a Java keystore (newkeystore.jks in this example). The example shown here prompts you to enter values for items that make up the distinguished name (DN) in the certificate. See the example below to enter these values directly on the command line.

2. The keytool prompts you to enter a password and values for the items that make up the distinguished name (DN) in the certificate (name = CN, organizational unit = OU, organization = O, city or locality = L, state or province = S, two letter country code = C). The generated DN will use the value 'Unknown' for any fields you don't specify.

   • When you are prompted with “What is your first and last name?'

     You must enter the DNS name that is used to access the Reflection Gateway server (for example gateway.mycompany.com). This value is used as the CN (Common Name) in the certificate. If the CN in a certificate doesn't match the actual DNS name used to access the server, you will see a certificate warning when you connect to the server.

   • When you are prompted with 'What is the two-letter country code for this unit?'

     You must enter a valid two-letter country code (for example US).

3. When you are prompted for a password for the alias, press Enter to use the same password you used for the keystore.

Android Keystore Store Password

An alternate option to responding to prompts is to specify the DN value on the command line using the -dname option. For example: