Find the key hash for a signed app

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  1. You should know where is your keystore file. For me is C:\Users\Selvin\Desktop\selvin.kp
  2. You should know your alias in keystore. For me is selvin
  3. You should know path to keytool. C:\Program Files\Java\jdk1.6.0_22\bin\keytool.exe
  4. You should know path to openssl. C:\OpenSSL-Win32\bin\openssl.exe
  5. You should know password to keystore. For me is ***** hehe

Then, you should call:

C:\Program Files\Java\jdk1.6.0_22\bin\keytool.exe” -exportcert -alias selvin -keystore c:\users\selvin\desktop\selvin.kp | C:\OpenSSL-Win32\bin\openssl sha1 -binary | C:\OpenSSL-Win32\bin\openssl base64

Replace my path and alias with proper ones.

Then you should see:

Enter keystore password:

Enter your password and you should get something like this: NfhDlIH7XWJzUZRjL+pZySrMX1Q=

EDITED: NfgDlIG7XWJzUZRUL+bZySrMX1Q= <- is a bad hash. Or you got so lucky that your key made the same collision as

error:keytool error: java.lang.Exception: Alias does not exist

If hash not working:

First, call

C:\Program Files\Java\jdk1.6.0_22\bin\keytool.exe” -exportcert -alias selvin -keystore c:\users\selvin\desktop\selvin.kp

Type password and read the error

If you don’t remember your alias keytool error: java.lang.Exception: Alias <selvinn> does not exist I used selvinn to show error.

For a list of all your entries/aliases:

C:\Program Files\Java\jdk1.6.0_22\bin\keytool.exe -list -keystore c:\users\selvin\desktop\selvin.kp

second edit

enter image description here

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