How can I create a keystore?

Question

What are the steps to create a keystore for android?

I need to use google maps in my app and I don\'t know what steps I missed. Please provide me with the specific d

Answer 1

If you don't want to or can't use Android Studio, you can use the create-android-keystore NPM tool:

$ create-android-keystore quick

Which results in a newly generated keystore in the current directory.

More info: https://www.npmjs.com/package/create-android-keystore

Answer 2

This tutorial:

http://techdroid.kbeanie.com/2010/02/sign-your-android-applications-for.html

was very helpful for me the first time I had to create a keystore. It is simple but the instructions on developer.android.com are a little too brief.

The part I was unsure about was where to save and what name to give the keystore file.

I seems it doesn't matter where you put it just be sure to keep it safe and keep a number of backups. I just put it in my app directory

Name the file "something.keystore" where something can be whatever you want. I used app_name.keystore, where app_name was the name of my app.

The next part was what to name the alias. Again it doesn't seem to matter so again I just used the app_name again. Keep the passwords the same as you used before. Fill out the rest of the fields and you are done.

Answer 3

I'd like to suggest automatic way with gradle only

** Define also at least one additional param for keystore in last command e.g. country '-dname', 'c=RU' **

apply plugin: 'com.android.application'

// define here sign properties
def sPassword = 'storePassword_here'
def kAlias = 'keyAlias_here'
def kPassword = 'keyPassword_here'

android {
    ...
    signingConfigs {
        release {
            storeFile file("keystore/release.jks")
            storePassword sPassword
            keyAlias kAlias
            keyPassword kPassword
        }
    }
    buildTypes {
        debug {
            signingConfig signingConfigs.release
        }
        release {
            shrinkResources true
            minifyEnabled true
            useProguard true
            signingConfig signingConfigs.release
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    ...
}

...

task generateKeystore() {
    exec {
        workingDir projectDir
        commandLine 'mkdir', '-p', 'keystore'
    }
    exec {
        workingDir projectDir
        commandLine 'rm', '-f', 'keystore/release.jks'
    }
    exec {
        workingDir projectDir
        commandLine 'keytool', '-genkey', '-noprompt', '-keystore', 'keystore/release.jks',
            '-alias', kAlias, '-storepass', sPassword, '-keypass', kPassword, '-dname', 'c=RU',
            '-keyalg', 'RSA', '-keysize', '2048', '-validity', '10000'
    }
}

project.afterEvaluate {
    preBuild.dependsOn generateKeystore
}

This will generate keystore on project sync and build

> Task :app:generateKeystore UP-TO-DATE
> Task :app:preBuild UP-TO-DATE

Answer 4

I was crazy looking how to generate a .keystore using in the shell a single line command, so I could run it from another application. This is the way:

echo y | keytool -genkeypair -dname "cn=Mark Jones, ou=JavaSoft, o=Sun, c=US" -alias business -keypass kpi135 -keystore /working/android.keystore -storepass ab987c -validity 20000

• dname is a unique identifier for the application in the .keystore

  • cn the full name of the person or organization that generates the .keystore
  • ou Organizational Unit that creates the project, its a subdivision of the Organization that creates it. Ex. android.google.com
  • o Organization owner of the whole project. Its a higher scope than ou. Ex.: google.com
  • c The country short code. Ex: For United States is "US"

• alias Identifier of the app as an single entity inside the .keystore (it can have many)

• keypass Password for protecting that specific alias.
• keystore Path where the .keystore file shall be created (the standard extension is actually .ks)
• storepass Password for protecting the whole .keystore content.
• validity Amout of days the app will be valid with this .keystore

It worked really well for me, it doesnt ask for anything else in the console, just creates the file. For more information see keytool - Key and Certificate Management Tool.

Answer 5

I followed this guide to create the debug keystore.

The command is:

keytool -genkeypair -alias androiddebugkey -keypass android -keystore debug.keystore -storepass android -dname "CN=Android Debug,O=Android,C=US" -validity 9999

Answer 6

To answer the question in the title, you create a keystore with the Java Keytool utility that comes with any standard JDK distribution and can be located at %JAVA_HOME%\bin. On Windows this would usually be C:\Program Files\Java\jre7\bin.

So on Windows, open a command window and switch to that directory and enter a command like this

keytool -genkey -v -keystore my-release-key.keystore -alias alias_name -keyalg RSA -keysize 2048 -validity 10000

Keytool prompts you to provide passwords for the keystore, provide the Distinguished Name fields and then the password for your key. It then generates the keystore as a file called my-release-key.keystore in the directory you're in. The keystore and key are protected by the passwords you entered. The keystore contains a single key, valid for 10000 days. The alias_name is a name that you — will use later, to refer to this keystore when signing your application.

For more information about Keytool, see the documentation at: http://docs.oracle.com/javase/6/docs/technotes/tools/windows/keytool.html

and for more information on signing Android apps go here: http://developer.android.com/tools/publishing/app-signing.html