Many thanks for the responses. It seems that if you want security, then forget the cloud! I've tried various encryptions, to encrypting the text myself with gpg, using saferoom (easiest option) or Encrypto. However, I've come to realise that zero-knowledge encryption would remove the majority of EN features. If everything was encrypted in EN then you'd be able to find nothing. Especially if the content was is what you're trying to search! I've been using saferoom and think it's probably the best way to go. Saferoom encrypts the notes content, but not tags or title. If you have a descriptive title and tags, you should be able to find your content with ease. I would imagine EN will never bring out proper zero knowledge encryption as it would stop them being able to search and index stuff. Any item that is encrypted would be removed from the index. Saferoom is probably as close as we're going to get. It has made me ask the question whether I really need things in the cloud, but it is useful to have your data everywhere as more than once I've needed a particular document at the bank, at an airport or in a meeting an EN has been great. I do have Devonthink Pro office, but this really doesn't have proper mobile support as the iOS app hasn't been developed in a long time. I also like the fact the EN gives me an extra layer of backup offsite, being in the cloud. Encrypted documents in Dropbox is ok, but decrypting them on mobile is a problem. I fear that with the rise of government snooping and global hacking, the cloud is on a long course for failure. Searching has become the defacto way of retrieving data and encryption closes that door. Apart from searching within an encrypted environment, I cannot see a way forward. It essentially means all our systems need to change. We need tools that provide an encrypted environment and all the other tool features need to run inside this environment.
