android - How to create a normal password-protected ZIP archive?

Question

My app zips several files, saves the zip file to the SD card, and it emails the zip file to an address.

The zipping is done with this code: Zipping Files with Android (Programmatically).

Now the question is, how do I put a password on the zip file so that authorized individuals who opens it on a computer (Windows, Mac, or Ubuntu) would be able to extract the files with a supplied password?

I read this post: Android zip file authentication, but it sounds to me that reading of the zip is done with another phone... or am I wrong? If anybody knows please let me know! Thanks!

Answer 1

I've searched a lot and finally found a good library that can zip files with password easily:

Zip:

ZipArchive zipArchive = new ZipArchive();
zipArchive.zip(targetPath,destinationPath,password);

Unzip:

ZipArchive zipArchive = new ZipArchive();
zipArchive.unzip(targetPath,destinationPath,password);

Rar:

RarArchive rarArchive = new RarArchive();
rarArchive.extractArchive(file archive, file destination);

The documentation of this library is good enough, I just added a few examples from there. It's totally free and wrote specially for android. Mvn Link