> Being gay is not a crime, and yet people can be blackmailed with it. It is very easy to open yourself up to blackmail by perfectly legitimate activities.
Option 1: DKIM keys stay private... "That email was just a joke, I'm not really gay"
Option 2: DKIM keys go public... "That email was just someone else's joke, I'm not really gay"
Not really a difference, and with option 2 you can't prove you didn't send it (as far as you can prove someone didn't crack 2048 bit RSA and use that power to concern themselves with your sex life).
Being able to prove a fascist dictator who was killing people for being gay, was secretly engaging in gay acts themselves, might help your cause of protecting gay people.
> Being able to prove a fascist dictator who was killing people for being gay, was secretly engaging in gay acts themselves, might help your cause of protecting gay people.
Because the DKIM keys were not made public, and a message sent from their account could be confirmed to be authentic.
If the keys were public, they could claim forgery. Regardless they could claim their account was hacked, but they couldn't deny the message was sent from their account.
I'm not asking how the technical mechanism proves the messages may be legitimate. I'm asking how you could use that knowledge in the specific situation you outlined to accomplish anything productive.
Option 1: DKIM keys stay private... "That email was just a joke, I'm not really gay" Option 2: DKIM keys go public... "That email was just someone else's joke, I'm not really gay"
Not really a difference, and with option 2 you can't prove you didn't send it (as far as you can prove someone didn't crack 2048 bit RSA and use that power to concern themselves with your sex life).
Being able to prove a fascist dictator who was killing people for being gay, was secretly engaging in gay acts themselves, might help your cause of protecting gay people.