Resign apk with different keystore

Question

Currently I\'m getting the apk signed with the private keystore file but I want to sign that apk with different keystore file. How can I resign that apk..?

Answer 1

1. remove old sign

   zip -d xxxx.apk(your apk file) META-INF/*

2. sign apk

   jarsigner -verbose -keystore xxxx.keystore(your keystore) -signedjar out_sign.apk(outfile) unsign.apk(unsign apk) xxxxxalias(your alias)

3. if sign apk not work and jdk >= 1.7

   add params -digestalg SHA1 -sigalg MD5withRSA
   jarsigner -verbose -digestalg SHA1 -sigalg MD5withRSA -keystore xxxx.keystore(your keystore) -signedjar out_sign.apk(outfile) unsign.apk(unsign apk) xxxxxalias(your alias)