The article seems to be based on the assumption that plausible deniablility requires hidden volumes or unused "random" data. Surely the use of one-time pads ge

The article seems to be based on the assumption that plausible deniablility requires hidden volumes or unused "random" data. Surely the use of one-time pads gets around that? A OTP cyphertext can be decrypted to any desired plaintext by providing the appropriate key. It's trivial to generate a key from an OTP cyphertext that will turn that cyphertext into a collection of kitten photos, for example. So Alice produces the kitten key under duress, and Mallory can't show that she also has a missile-secrets key that she hasn't disclosed. There's no unexplained "random" data, and no unused space on the storage medium. Voila - Alice is off the hook (unless Mallory is the kind of person that enjoys pulling fingernails, and carries on with the $5-wrench thing anyway).