AIBRIEF
Ciena, Toshiba, and Quantum Corridor validated encryption designed to resist future quantum computer attacks at 1.6 terabits per second on a commercial Chicago to Hammond, Indiana data center fiber run.
A 1.6 terabit-per-second encrypted data call rode live commercial fiber between data centers in Chicago and Hammond, Indiana, using algorithms designed to resist attacks by future quantum computers. Toshiba supplied the cryptography, Quantum Corridor operated the route, and the algorithms ran inside Ciena's WaveLogic 6 Extreme coherent optical transceivers, the same modems that carry the light.
"Quantum-safe" describes the threat model behind the broader push for post-quantum cryptography standards, the kind of encryption governments and standards bodies have been racing to define and adopt. The pilot's value is not the algorithm alone; it is that the encryption ran at carrier-class line rate inside the optical layer rather than as a separate crypto box bolted onto the link.
The 1.6 Tbps figure is vendor-validated, not independently benchmarked. The announcement does not name the specific algorithm used, the key-distribution approach, or whether the design combines QKD with post-quantum cryptography. The pilot is a single route on a single vendor stack, a proof point that post-quantum migration has moved from a standards question to a deployment question, not evidence that the migration is solved.