丢失release keystore密码，寻求现有应用新版本发布解决方案

Hey there, let’s work through this together—losing a release keystore password is one of the most stressful dev headaches, especially with a high-download app, but there’s almost always a way to avoid re-listing. Let’s break this down step by step:

第一步：先尝试找回现有Keystore密码 #

Before jumping to generate a new keystore, exhaust these quick recovery paths—you might save yourself weeks of hassle:

• Check your local config files: Look for gradle.properties (Android Studio often stores signing configs here) or old build scripts for hardcoded (or commented-out) passwords.
• Dig into build logs: If you’ve ever run a release build locally or via CI, the logs might have partial or full password references (just make sure to check private CI pipelines only).
• Try low-effort password tools: Use keytool -list -v -keystore your-release-key.keystore and pair it with a lightweight password cracker (like John the Ripper) for simple passwords—note: this won’t work for strong, random passwords.
• Check team tools: If this is a team project, verify password managers (1Password, LastPass), shared docs, or even old Slack threads for the keystore password.

第二步：核心顾虑——生成新Keystore会不会导致重新上架？ #

This depends entirely on which app store you’re using, and whether you enabled their managed signing service:

Google Play (since you mentioned the App Signing page) #

If you’ve already enabled Google Play App Signing (the default for most apps created after 2017), you’re in luck—you don’t need to touch the original app signing key (the one Google uses to sign the final APK/AB delivered to users). All you need to do is generate a new upload key and replace it via the Play Console:

1. Generate a new upload keystore:

   keytool -genkeypair -alias upload -keyalg RSA -keysize 2048 -validity 9125 -keystore upload-keystore.jks
   

2. Export the public certificate from the new keystore:

   keytool -export -rfc -alias upload -file upload_certificate.pem -keystore upload-keystore.jks
   

3. Head to your app’s App Signing page in the Google Play Console, find the "Upload key" section, click "Replace upload key", and upload the upload_certificate.pem file. Submit the request—Google will review it (usually within 24 hours for high-traffic apps) and approve it.
4. Once approved, you can sign your new release with the new upload keystore and upload it as normal—no re-listing required, and users won’t notice any changes.

If you haven’t enabled Google Play App Signing (older apps), this is trickier but not impossible:

• Contact Google Play Developer Support directly, providing proof of app ownership (developer ID, app bundle IDs, transaction history, etc.). For high-download apps, Google will often prioritize your request to reset the app signing key. This avoids re-listing, but the process can take 3-5 business days.

Apple App Store #

For iOS apps, the process is simpler:

• If you lost your distribution certificate/keystore, just log into the Apple Developer Portal, generate a new distribution certificate and provisioning profile, and sign your new build with the new credentials.
• Apple uses your developer account to validate app identity, so you can upload updates as normal—no re-listing needed, and existing users will get the update seamlessly.

关于你提到的App Signing页面的后续 #

If you’re seeing specific errors or confusing options on the App Signing page, double-check:

• Whether "App signing by Google Play" is marked as "Enabled" (this is the key indicator you can safely replace the upload key).
• If you have the necessary permissions (Owner or Admin) to modify signing settings on the Play Console.

内容的提问来源于stack exchange，提问作者Van Thi