| Paper ID | D2-S3-T4.3 |
| Paper Title |
Towards Secure Over-The-Air Computation |
| Authors |
Matthias Frey, Technische Universität Berlin, Germany; Igor Bjelaković, Fraunhofer Heinrich Hertz Institute, Germany; Sławomir Stańczak, Technische Universität Berlin and Fraunhofer Heinrich Hertz Institute, Germany |
| Session |
D2-S3-T4: Information-Theoretic Security |
| Chaired Session: |
Tuesday, 13 July, 22:40 - 23:00 |
| Engagement Session: |
Tuesday, 13 July, 23:00 - 23:20 |
| Abstract |
We propose a new method to protect Over-The-Air (OTA) computation schemes against passive eavesdropping. Our method uses a friendly jammer whose signal is -- contrary to common intuition -- stronger at the legitimate receiver than it is at the eavesdropper. It works for a large class of analog OTA computation schemes and we give two examples for such schemes that are contained in this class. The key ingredients in proving the security guarantees are a known result on channel resolvability and a generalization of existing results on coding for compound channels.
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