On: Why (special agent) Johnny (still) Can't Encrypt

[quanticle]

The article doesn't say that rekeying occurs over the air. It could very well be the case that police departments are rekeying their radios at the end of every shift, when, for all practical purposes, they'd be as safe rekeying once a week.

[whomelse → quanticle]

I just assumed a protocol called "over the air rekeying" would be performed "over the air". But that's just me.