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Where did you get the impression the author thinks it’s a bad thing? From the article:

> These are public keys, which are meant to be published - recovering one lets anyone check a signature, not forge one.

I think GP and TFA mean that some of the states are afraid of public-key disclosure.

TFA is a bit obtuse about it, and assumes you've read their previous article on the topic, but from what I gathered, it's about whether the AAMVA would standardize cryptographically signing the barcodes of driver licenses to mitigate creating fakes in the US/CA. Cali showed it's entirely possible, but there's still no pressure for the standard to change across the board.

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