I would like to know if there is an encryption tool that works on both, Ubuntu and Windows, that can encrypt single or multiple files of any kind (not only e-mails or text).
I already have checked TrueCrypt, but it's not what I'm looking for. What I want is an encryption tool that I can right click on a file, select "encrypt", set a password and done. It's also important that the file could be decrypted on Windows as well. The goal is safely share encrypted files trough free hosting sites or DropBox.
I appreciate any help.