Bug 355586

Background
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Currently, it is not quite straightforward for the regular user to encrypt one or more files.

E.g. one way is to
1) Right-click on a folder or set of files in dolphin
2) Select Compress...
3) Select Compress To...
4) Select 7-zip archive from the Filter dropdown
5) Check the "Protect the archive with a password" option
6) Enter the password
7) Click save

Goal
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It would be nice if KDE/Plasma had a service menu for files and folders to specifically create an encrypted archive. Encrypted 7-zip archives have reasonably strong encryption, I think. So, the above-mentioned process could be simplified to this:

1) Right-click on a folder or set of files in dolphin
2) Select Actions...  (which is more intuitive then Compress...)
3) Select "Encrypt to archive file"
--> the Ark save dialog is opened with 7-zip archive preselected from the Filter dropdown
--> and "Protect the archive with a password" option checked
4) Enter the password
5) Click save

Next steps
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To realize the goal, I suggest to extend the ark command line interface with an option to have 7-zip with password encryption preselected in the ark Save dialog.