A satellite that never holds the key.
A compact LEO payload generates entangled photon pairs and shares them both ways. Ground terminals acquire the pass, track it, and take keys for as long as the link budget allows.
$ skyctl pass --next
AOS 04:12:07 · LOS 04:20:31
max elevation 71 deg
$ skyctl link --arm
✓ entanglement source armed
✓ decoy state BB84 · ready
Ground terminal
SKYKEY-1
Space segment
Pass telemetry
61.5 deg
Elevation
626 km
Slant range
31.4 kb/s
Secret key rate
Pass operations
- 1The payload generates entangled pairs in orbit, holding nothing
- 2The terminal acquires at horizon and tracks through the pass
- 3Keys land with elevation, loss and error rate logged per block
