The NORX8 paper says
It is assumed that adversaries are nonce-respecting.
What is a nonce-respecting adversary?
The NORX8 paper says
It is assumed that adversaries are nonce-respecting.
What is a nonce-respecting adversary?
We call an adversary A nonce-respecting if it never repeats a nonce
Source: Nonce-Based Symmetric Encryption
This is defined in the context of the IND-CPA game.