Yes, but difficult is a subjective word.
Virtually every country requires an ID to vote, and citizenship. That should be a BARE minimum.
If you look at the United States historically, originally to vote you had to be a property owner, and the different colonies had different value markers assigned to the owning of the property to determine if you were eligible. Today, people would FLIP out, but it makes some sense in actuality. To vote you had to have a vested interest and investment in the land. That makes sense at the core. When you own something, you tend to value it more - we see this in simple day to day activities with how people treat public spaces compared to their home, for example.
No, it will never go back to that - nor am I advocating for that, but it does show how we have weakened voting requirements exponentially in the US.