How to keep password protection to individual files/folders

Question

I am using elementary OS freya. How can I encrypt (or) keep password protection to individual files/folders.

The following are my requirements and what I have tried so far:

• The solution should be in GUI

• I have already tried cryptkeeper with no success.

• I have tried ecryptfs-utils from software center, but that is not GUI.

• I am not asking to hide, so keeping a . before file name may not be the solution.

• I don't want to use chmod

Answer 1

For individual files, I usually just compress files as .zip, then enter a password to protect it. When you try to open the compressed file, it asks you for the password.