Android - Forgot your keystore password. Can I decrypt a keystore file?

Question

I lost the password the keystore file that was used to sign my apk. I cannot update my application now, and I think I should release it as a new application, signing it with a new keystore. Is it possible to decrypt the keystore file since I have a keystore file and the password is present in the keystore file. Or someone can provide me with a link to a program that is used to force a password. If any of you could recover the password of the keystore file, share your method. Thanks in advance.

Answer 1

I am using this for bruteforce at the moment: Android Keyster Password Recovery

Answer 2

There are 3 ways to recover the password of a lost key store:

• If you do not have journal entries, you can find the password in the Android Studio log files: select ~ / Library / Logs → AndroidStudio -> idea.log.1 and search for “Pandroid.injected.signing.key.password” and you can see the password key.

• You can get the password from the .gradle directory. Take a look at .gradle \ 2.4 \ taskArtifacts \ taskArtifacts.bin. This does not seem to work for newer versions of Gradle (2.10 and higher).

• Use AndroidKeystoreBrute to guess or roughly use your password according to Alex Kutsko answered above.

Solution Link

Answer 3

Android dev and its IDE have been disabled for several months.

Took a couple of hours to find out that I really entered the correct password during the second attempt. The next dialog box displays exactly the same error icon as if I entered the wrong password, although in fact it says that I need to enter the password for the selected key!

Not like the original question, but you probably already entered the correct password! So much for user interface design.

Answer 4

I had the same problem too!

There are several ways to find a password:

• Using android studio log file
• Using taskArtifacts
• Using bruteforce

A detailed answer is provided at http://techzog.com/development/android/retrieve-saved-keystore-password-android-studio/

If none of the above work, there is a way to reset the keystore password ! Code is available here.

• Download the zip file here .
• Install JAVA on your computer.
• Store all files (keystore, extracted Java files) in one folder
• Open a command prompt there. (Shift + RightClick)
• Run javac ChangePassword.java
• Run java ChangePassword <keystore file> <new keystore file>

java ChangePassword oldkey.jks newkey.jks 7. Enter the password when prompted. Remember the new password for the new jks file.

Open jks file with new password

Answer 5

I am using a simple method. I hope my way will solve your problem.

first way-> click

.gradle-> latest gradle version-> task histroy-> taskHistory.bin

The second way →

.gradle-> latest gradle version-> taskArtifacts-> taskArtifacts.bin

Answer 6

See KeystoreBreaker for recovering a lost password.

Answer 7

The most effective way to crack your password is to use the tool that I just released with hashcat:

https://github.com/floyd-fuh/JKS-private-key-cracker-hashcat

If you have a powerful graphics card (GPU), hacking will be much faster. Otherwise, hashcat will use your processor.

It comes down to the following two commands:

 java -jar JksPrivkPrepare.jar your_JKS_file.jks > hash.txt ./hashcat -m 15500 -a 3 hash.txt