All Dates/Times are Australian Eastern Standard Time (AEST)

Technical Program

Paper Detail

Paper IDD1-S3-T4.1
Paper Title Explicit Design of Provably Covert Channel Codes
Authors Shi-Yuan Wang, Matthieu R. Bloch, Georgia Institute of Technology, United States
Session D1-S3-T4: Covert Communication
Chaired Session: Monday, 12 July, 22:40 - 23:00
Engagement Session: Monday, 12 July, 23:00 - 23:20
Abstract We design an explicit code ensuring provably covert communication over Binary Symmetric Channels (BSCs). This design complements an earlier work that provides a methodology for asymptotic optimal performance but falls short of offering explicit details for operation at finite block length. In particular, we show how to preserve covertness guarantees when facing the unavoidable compromises required by finite block length operation. Compared to the reference scheme without sophisticated coding, our scheme offers orders of magnitude savings in secret key bits. Key ingredients of our design include polar codes for source coding and invertible extractors.