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I want to update my Application to playstore and I lost my keystore password.Now I am trying to create a new one . Will there be any problem if I build APK with another keystore password ?
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It's unfortunate, but when you lose your keystore, or the password to your keystore, your application is orphaned. The only thing you can do is resubmit your app to the market under a new key.
The only way to recover is then to create a duplicate keystore with a new store password. All of the certs from the original trustore can be copied as-is into the new keystore. We will use /opt/CA/jre/lib/security/cacerts as the example but this will work with any Java Keystore (jks).
You can change the default keystore password as follows: Change the keystore password in the keystore using the following command: $ keytool -storepasswd -keystore /path/to/security/keystore. jceks -storetype JCEKS -storepass 'changeit' -new 'newPassword'
Keystore is a binary file that contains a set of private keys. Private key represents the entity to be identified with the app, such as a person or a company. So Keystore password is used to open a keystore and simple password is password of private entity stored in keystore file..!!
As @CRUSADER said, Android Keystore Password Recovery might work for you. I could retrieve my password with it. Here is how to do that. I was on Windows 7.
Run the following command,
java -jar AndroidKeystoreBrute_v1.05.jar
Then you will get the following guide,
AndroidKeystorePasswordRecoveryTool by M@xiking
Version 1.03
There are 3 Methods to recover the key for your Keystore:
1: simply bruteforce - good luck
2: dictionary attack - your password has to be in the dictionary
3: smart dictionary attack - you specify a dictionary with regular pieces you use in your passwords. Numbers are automat
icly added and first letter will tested uppercase and lowercase
args:
-m <1..3> Method
-k <path> path to your keystore
-d <path> dictionary (for method 2 and 3)
-w saves the certificate in a new Keystore with same passwort than key
-start <String> sets start String of the word (for method 1)
-p use common replacements like '@' for 'a'(for method 3) WARNING - very slow!!
-h prints this helpscreen
Max memory: 247M
I've used method 2 because I had some guess of my password. I typed the following command,
java -jar AndroidKeystoreBrute_v1.05.jar -m 2 -k android.keystore -d dict.txt
In case you might wonder, my dict.txt was something like this,
gussedpassword1
gussedpassword2
gussedpassword3
I could successfully retrieve my password and alias.
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