Thanks gazumped. That was my suspicion but, if it is the case that it only works in your local copy of Evernote, I feel the feature is half-baked. After all, in a web browser you see the padlock and the password hint. What would anyone expect from that besides being able to click to access whatever is behind the padlock. Also, if it never worked, how did OP say it finally worked? And you even mentioned using a different web browser. I'm using a web browser to view the shared note via this link. Accessing the share link from different browsers doesn't allow me to decrypt the text. EDIT: Oh, it finally works. I don't know why it wasn't earlier.
I know this is an old thread, but I have the same problem as OP originally reported in 2013 and kevinhy also reported in 2014. My findings are below. Steps to reproduce: 1. Create a new note in Evernote desktop for Mac (Windows version may have same issue, but is not available to test). 2. Enter some text, select it, and choose Encrypt Selected Text.... 3. Enter a password and hint on the dialog that appears. 4. Click Share and choose Copy Public Link. (Test note) 5. Open the link in a browser which you are not logged into Evernote web (authentication may not matter). 6. Attempt to click or double click the passcode box. What I expect to happen: I expect in step 6 that a password prompt would appear when clicking or double clicking to allow entering the password. What happens instead: Clicking and double clicking on the passcode box does not do anything. Browsers Tested: IE 11 (Windows 8.1) IE 10 (Windows 8) IE 9 (Windows 7) EI 8 (Windows 7) Firefox 35 (Windows 8.1, OS X Yosemite) Chrome 39 (Windows 8.1, OS X Yosemite) Chrome 24 (Windows 7)