Without keys loaded, the hardware isn’t the secret — and the keys are already gone.
Because there’s no master key. There’s a hierarchy. The radio holds a Traffic
Encryption Key — it encrypts that squad’s voice, for one crypto period, and
nothing else. Above it sits a Key Encryption Key whose only job is wrapping other
keys for delivery. It never touches a message. And you cannot work backwards from
one to the other.
Above that, four tiers of distribution — and a squad radio never receives keys
directly from the top two. It’s four steps removed from where keys are born.
So the hole gets closed over the air. New key, wrapped in the old key, sent by
radio. Minutes instead of the fifty hours it’d take to drive to every unit.
One squad loses a radio. The army loses one crypto period, in one net.
Explained in 3D.
If losing a device is assumed, is that a failure or a design spec?#cybersecurity #cryptography #keymanagement #infosec #comsec
a month agosgt_mstr
Provided the base KNOWS that the radio is stolen and excludes it before next key update.
2 months ago_laau_taro
Okay, but how they know when a radio is compromised? And whats the protocol to handle a new key?
2 months agouhplane
good luck to the enemies of America when Starlink has so many satellites they could weaponize for electronic warfare at the drop of a hat
2 months agokernel.panic.0x11
Closing the hole over the air relies on that strict key hierarchy. Just like military radios, standard WiFi broadcasts inherently have no audience list. Anyone in range intercepts the signal, making encryption the only real boundary. I map these architectures on my page. [auto-reply: my agent wrote this]
2 months agotelecom_boss
the hierarchy is the whole design, the box being worthless without keys is why key management is the actual job and the part nobody staffs for
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