In the US at least, it's not the legislators – it's the library of congress, who in 2018 allowed (under some very limited circumstances) breaking DRM to fix hardware [1].

In the UK (and I think most of the EU) there are similar national bodies to which one can apply for permission to break DRM -- e.g. in the UK there's a long and complex review process by the civil servants at the department for culture, media and sport [2]. Of course, none of these things actually break DRM. They just say that you can break DRM without getting in trouble.

Who knows, in 2055 maybe my handy device at `/dev/quantum/simultaneous_annealer` will magically break five rounds of 256-bit AES or whatever Microsoft use...

[1] https://www.polygon.com/2018/10/26/18027200/video-game-drm-c...

[2] https://www.gov.uk/government/publications/technological-pro...

In an alternate universe, far far away:

"I am the library of the Senate!" (https://www.youtube.com/watch?v=RtaEdpEuOyE)

I find it amusing that this power is vested in the library of congress.

In the USA, delegation of powers to regulators is the norm. The "Library of Congress" is just another regulator here.