Have you considered using a portable app?
and download the 7-Zip portable.
You can use that portable (and many others) with Wine.
You can use 7-Zip to compress files into many formats. To encrypt with AES, you will have to use the 7-Zip (i.e., 7z) or Zip format.
How does 7z and Zip compare?
Zip is older and is more known.
7-Zip provides better compression i.e., it will make a smaller file size (in most cases).
You can encrypt file names with 7-Zip (not with Zip). e.g., You encrypt a wallet.dat file into 7z and call that file backup.7z. When you (or anyone) goes to open that file (to extract a file or files), they will not know the names of the files or how many files there are until you put in the password. With an encrypted Zip, you can determine the name of the files and how many there are.
In both cases, you will not be able to extract/decrypt until you put in the password. Which is what you want.
After you compress/encrypt the file (or files), you will have two files. The compress/encrypted file and the old file/plain text file. Remember to shred the plain text file (I know you know this). I use a program called Bleach to do that (which is available for Linux and Windows). Hey, there is even a portable version of Bleach, however I haven't tried it.
If you have never used the 7z GUI before, then it may seem a little strange at first. Play with it a while, it's not that bad.
You could use the portable to extract/decrypt a file. If you have 7-Zip installed in your system, then it is not necessary. Just click on the file and put in your password.