Signature software is generally used after the program is compiled and packaged. Before running the program, the mobile phone will first verify whether the signature of the program (can be regarded as similar to the md5 we often say on computers) is legal. Only if it passes the verification The file will be run, so the function of the signature software is to make the file legal through verification by the mobile phone. Different mobile phones and systems correspond to different signatures. This newly generated apk file is a program with a signature file, and is the same as the original is actually the same, the difference is that it is a legal procedure.

In a nutshell, it’s a lock with a key! (*^__^*) Hee hee...