Text file encryption using GPG

[Torquil Macdonald Sørensen <torquil@gmail.com>]

Hi all!

I have used Gringotts, which lets me view and edit encrypted general text files 
quite securely without writing unencrypted data to disk.

However, I would like to use my GPG key instead of using Gringotts+passphrase.

Anybody know of a program that lets me view and edit encrypted text files using 
my GPG key?

Best regards
Torquil Sørensen