APK package and try again decompile signature

It requires two external tools:

(1) apktool.jar

     The need to go online to download, it is best to download the latest https://ibotpeaches.github.io/Apktool/install/ 

(2) jarsigner.exe

     After this there will be a JDK installed

 

 

Decompile

java.exe -jar apktool.jar d Hello.apk

Repackaging

java.exe -jar apktool.jar b Hello -o Hello.apk

Perform the signature (dk1.8.0_221 \ bin \ jarsigner.exe)

jarsigner.exe -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore test.jks  -storepass 12345678 Hello.apk key0

The above indicates that the signature algorithm "SHA1withRSA", digest algorithm is "SHA1", key store password is 12345678, 12345678 key cryptography, the key is test.jks, to be signed APK is hello.apk, key alias " key0 ".