Secrets-Editor
Secrets-Editor is a tool to save text files, images, and other documents in an encrypted form (passphrase encryption with SHA-1 and AES).
The program (text mode) running on Windows
Secrets-Editor provides common functionality like copy 'n' paste, undo/redo, drag 'n' drop, and a search tool. When you save a new file for the first time (or when you save an existing file as a new file), you have to specify a so called passphrase (something similar to a password, but a sentence instead of a single word -- so people, who don't remember character combinations, can use a 'secret sentence' instead); this passphrase will then be used for authentification when you open the file again.
Since version 3.0 you can encrypt arbitrary documents with Secrets-Editor (see menu add-ons). As one tries to avoid to first decrypt a document, then save it on the hard disk, and then view it with a separate application, Secrets-Editor now supports beside the filetype .txt also the image types .gif, .jpg, and .png, i.e. you may now, for instance, view scanned and encrypted documents directly inside Secrets-Editor.
Here you can download the program: JAG & the-dom Secrets-Editor 3.1 (Windows Installer). If you don't have installed the JRE by Sun Microsystems so far (or if you have an older version than 1.5), please install first a current JRE (How-To). Furthermore, the full-strength encryption version of the JCE is absolutely required (How-To).