The issue with cryptography is that you have to be precise, that means the communication needs to involve far more detail, even if it can initially be confusing

The issue with cryptography is that you have to be precise, that means the communication needs to involve far more detail, even if it can initially be confusing. This is one of the major reasons that crypto is hard and if you try to get around the "hard" bit your "shortcut" will probably come back to bite you. When it comes to crypto and accuracy (and hence security), more communication, and detailed communication are probably the solution not the problem.