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Re:FCC will vote on plan to remove outdated amateur radio te... by jcalvinowens on Saturday October 28, 2023 @06:31PM (#38054000)
> what about allowing authentication, rather than encryption? like, let people send MAC-protected checksums and signatures to make plaintext verifiable.

That's already allowed, and commonly done.

97.113(a)(4) doesn't say "no cryptography", it says (in part):

>> No amateur station shall transmit [...] messages encoded for the purpose of obscuring their meaning.

The scheme you're describing doesn't obscure the meaning of your transmissions, so it is perfectly legal.

https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D...

Re:FCC will vote on plan to remove outdated amateur radio te... by gloyoyo on Sunday October 29, 2023 @12:20AM (#38055788)
>> I like that part.