title: Getting certificate details from an apk
body: <p>How do I go about getting the details of the certificate an apk was signed with. I have a bunch of apks signed with different certificates and I am trying to group them based on their certificate.</p>
  <p>I can get the certificate expiry details using the jarsigner and complete my task but I was curious if I can get any more details or extract the public key ( I believe it stored in META-INF/cert.RSA but it's not readable )</p>