I've not done it, but my understanding is that dried peppers will ferment sufficiently well. I'd recommend searching for threads on fermenting smoked peppers and get some of the analogous advice in there. Using a booster culture to start the ferment quickly and adding other ingredients to the ferment are things I would be considering to hasten and strengthen the ferment.
Other options, if desired and if fresh pods are available too, would be a mixed ferment of dried and fresh pods or fermenting fresh pods then rehydrating and adding the dried pods to the ferment when making the sauce.