How to Solve Google Play App Signing “Error: Unable to export or encrypt the private key java.security.NoSuchAlgorithmException”

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Welcome! i am sure you have read google play support documents and a couple of stackoverflow posts on how to generate signed private key for google play app signing. I have been through these steps and tried several methods and experimented new ways. Today i find a simple solution and going to share with you how to resolve this Error:

Error: Unable to export or encrypt the private key
java.security.NoSuchAlgorithmException: Cannot find any provider supporting RSA/NONE/OAEPWithSHA1AndMGF1Padding
    at java.base/javax.crypto.Cipher.getInstance(Cipher.java:574)
    at com.google.wireless.android.vending.developer.signing.tools.extern.export.ExportEncryptedPrivateKeyTool.encryptPrivateKeyWithCkmRsaAesKeyWrapEncryption(ExportEncryptedPrivateKeyTool.java:284)
    at com.google.wireless.android.vending.developer.signing.tools.extern.export.ExportEncryptedPrivateKeyTool.run(ExportEncryptedPrivateKeyTool.java:213)
    at com.google.wireless.android.vending.developer.signing.tools.extern.export.ExportEncryptedPrivateKeyTool.main(ExportEncryptedPrivateKeyTool.java:165)

I will not waste your time explaining what methods i tried (believe me i have tried so many methods), let’s go straight to the solution that worked for me. Follow these steps below and leave a comment as a thanks.

Step1:

First thing is to download an openJDK version 21, openJDK21.

Download microsoftOpenJDK21 from microsoft or use a power shell command:

Open power shell, write and execute this command and follow the instructions.

winget install Microsoft.OpenJDK.21

Check Java Path:

when installation completes, open command prompt and check the java path.

the command to check Java Installation Path:

where java

Step 2:

Download a new copy of pubic_encryption_key.pem from your google play app signing dashboard. Also download pepk.jar tool from google play app signing console.

Step 3:

Generate a signed bundle of your app from Android Studio or any other IDE. Assuming you have already created a key store.

Step 4:

Open Command prompt and run the code provided by google play for key encryption.

E:\yourKeystoreAndPublciKeyPath>java -jar pepk.jar --keystore=yourkeystore --alias=yourkeyalias --output=output.zip --include-cert --rsa-aes-encryption --encryption-key-path=encryption_public_key.pem

change the path to your files according to their location.

I am sure it has worked for you, if for some reason you still have any problem, drop a comment and i gladly will help you.

Hope it helps, do comment if you like it and share it with your friends.