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 How do I find out which keystore was used to sign an app?
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).
but did not get The signature.