I'm giving each of my users an unique Blocktrail wallet that is protected by two API keys (which the server knows) and one passphrase (unique to each wallet). I want the wallet's passphrase to be ...
I'm working on batch-encryption of files, for a small project of mine. The files are stored encrypted on a removable drive, and the keys are stored on a trustful server. For enhanced safety, I'd like ...
Here is a problem. There is a single piece of sensitive data, which is subject to update and invalidate previous non-updated copies (think of password-protected Bitcoin Core wallet.dat). There are ...