Feedback Lunch: Learned Feedback Codes for Secure Communications

ArXi:2510.16620v3 Announce Type: replace-cross 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.