{"ID":2853489,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2510.16620","arxiv_id":"2510.16620","title":"Feedback Lunch: Learned Feedback Codes for Secure Communications","abstract":"We consider reversely-degraded secure-communication channels, for which the secrecy capacity is zero if there is no channel feedback. Specifically, we focus on a seeded modular code design for the block-fading Gaussian wiretap channel with channel-output feedback, combining universal hash functions for security and learned feedback-based codes for reliability. The trade-off between communication reliability and information leakage is studied, illustrating that feedback enables agreeing on a secret key shared between legitimate parties, overcoming the security advantage of the eavesdropper. Our findings motivate code designs for sensing-assisted secure communications in the context of integrated sensing and communication (ISAC).","short_abstract":"We consider reversely-degraded secure-communication channels, for which the secrecy capacity is zero if there is no channel feedback. Specifically, we focus on a seeded modular code design for the block-fading Gaussian wiretap channel with channel-output feedback, combining universal hash functions for security and lea...","url_abs":"https://arxiv.org/abs/2510.16620","url_pdf":"https://arxiv.org/pdf/2510.16620v4","authors":"[\"Yingyao Zhou\",\"Natasha Devroye\",\"Onur Günlü\"]","published":"2025-10-18T19:22:45Z","proceeding":"cs.IT","tasks":"[\"cs.IT\",\"cs.AI\",\"cs.CR\",\"cs.LG\",\"eess.SP\"]","methods":"[]","has_code":false}