How to Generate a CSR on Android

In this tutorial, we will show you how to generate a CSR on Android. Since Java is the official language of Android development, we’ll show you how to generate a CSR code via Java Keystore.

Along with the CSR, Java Keystore will also generate your private key file, required during the SSL installation.

Please, follow the instructions below:

Step 1: Create a keystore and a key file

Run the following command:

keytool -genkey -alias myalias -keyalg RSA –keysize 2048 -keystore c:\yoursite.keystore

Note: Remember your alias. You will need it later during the SSL installation.

Step 2: Enter your information

When prompted, submit your information as shown below:

  • What is your first and last name? Instead of your first and last name, enter the FQDN (fully-qualified domain name) you want to secure. For example,
  • What is the name of your organizational unit? Name the department within your organization requesting the SSL Certificate. For instance, IT
  • What is the name of your organization? Specify the full legal name of your company. For example, Your Company LLC
  • What is the name of your city or locality? Write the full name of the city where your company is registered
  • What is the name of your state or province? Enter the full name of the state or province where your company is located. For example, California
  • What is the two-letter country code for this unit? Type your country’s official two-letter code. For instance, US. Here you can find the full list of country codes.

Press Y or type Yes to confirm your details.

Step 3: Create your CSR code

Run the following command:

keytool -certreq -keyalg RSA -alias myalias -file certreq.txt -keystore c:\yoursite.mykeystore

To locate your CSR file, run the command below:

type certreq.txt

Use any text editor such as Notepad to open the certreq.txt file. You will need to copy-paste its contents, including the BEGIN CERTIFICATE and END CERTIFICATE tags into the corresponding box during the SSL order process.

After your CA validates the CSR and issues the SSL certificate, you can proceed to the Android SSL installation instructions.

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