A debug keystore which is used to sign an Android app during development needs a specific alias and password combination as dictated by Google. To create a debug keystore, use:. For your release keystore, do the same as above but choose a name, alias, and password that you prefer. To hook your app up with services like Google APIs you'll need to print out each of your keys' fingerprints and give them to the services you're using. To do that, use:. Hi, my keytool application doesn't have the parameter "-keygen", I find the following parameter: -genkeypair, -genseckey so I don't know how to proceed.
Can you help me, please? The debug. So the only step that created a correct file for me was creating a new Android project in Android Studio. Keystore name: "debug. If you find that you do not have JDK installed. All you need to do is goto command prompt and cd C:Program FilesJavajdk From the Android Developers documentation about Signing your app :.
The app added and showed this automatically: build. When I tested the app on a cell phone, Studio asked to reinstall the app with this new configuration. App runs as before!
On Windows, if the debug. The easiest thing I can think of is to grab the fingerprint from the debug. No need to copy keystores or add new apps. If you choose not to opt in to Play App Signing only for apps created before August , you can manage your own app signing key and keystore.
Keep in mind, you are responsible for securing the key and the keystore. When you are ready to create your own key and keystore, make sure you first choose a strong password for your keystore and a separate strong password for each private key stored in the keystore. You must keep your keystore in a safe and secure place. If you lose access to your app signing key or your key is compromised, Google cannot retrieve the app signing key for you, and you will not be able to release new versions of your app to users as updates to the original app.
For more information, see Secure your key , below. If you manage your own app signing key and keystore, when you sign your APK, you will sign it locally using your app signing key and upload the signed APK directly to the Google Play Store for distribution as shown in figure Signing an app when you manage your own app signing key.
When you use Play App Signing , Google keeps your signing key safe, and ensures your apps are correctly signed and able to receive updates throughout their lifespans. However, if you decide to manage your app signing key yourself, there are a few considerations you should keep in mind.
You should sign your app with the same certificate throughout its expected lifespan. There are several reasons why you should do so:. If you plan to support upgrades for an app, ensure that your app signing key has a validity period that exceeds the expected lifespan of that app.
A validity period of 25 years or more is recommended. When your key's validity period expires, users will no longer be able to seamlessly upgrade to new versions of your app. If you plan to publish your apps on Google Play, the key you use to sign your app must have a validity period ending after 22 October Google Play enforces this requirement to ensure that users can seamlessly upgrade apps when new versions are available.
If you choose to manage and secure your app signing key and keystore yourself instead of opting in to Play App Signing , securing your app signing key is of critical importance, both to you and to the user. If you allow someone to use your key, or if you leave your keystore and passwords in an unsecured location such that a third-party could find and use them, your authoring identity and the trust of the user are compromised. If a third party should manage to take your app signing key without your knowledge or permission, that person could sign and distribute apps that maliciously replace your authentic apps or corrupt them.
Such a person could also sign and distribute apps under your identity that attack other apps or the system itself, or corrupt or steal user data.
Your private key is required for signing all future versions of your app. If you lose or misplace your key, you will not be able to publish updates to your existing app. You cannot regenerate a previously generated key.
Your reputation as a developer entity depends on your securing your app signing key properly, at all times, until the key is expired. Here are some tips for keeping your key secure:. In general, if you follow common-sense precautions when generating, using, and storing your key, it will remain secure. When you create a signing configuration, Android Studio adds your signing information in plain text to the module's build. If you are working with a team or open-sourcing your code, you should move this sensitive information out of the build files so it is not easily accessible to others.
To do this, you should create a separate properties file to store secure information and refer to that file in your build files as follows:. Note: You could choose to store your keystore. In that case, you should modify the code above to correctly initialize keystorePropertiesFile using your actual keystore.
Because your build files no longer contain sensitive information, you can now include them in source control or upload them to a shared codebase. Be sure to keep the keystore. This may include removing it from your source control system. Content and code samples on this page are subject to the licenses described in the Content License.
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