title: How to get Signature Key by APK
body: <p>I have lost my signature key of application. I searched everywhere but didn't get the answer. please android experts , suggest me how can I get my signature key, I have APK file.
  I visited
  <a href="https://stackoverflow.com/questions/11331469/how-to-find-out-which-key-was-used-to-sign-an-app">How do I find out which keystore was used to sign an app?</a></p>
  
  <p>I unzipped the APK and extracted the file /META-INF/ANDROID_.RSA (this file may also be CERT.RSA, but there should only be one .RSA file).</p>
  
  <p>but did not get The signature. </p>