Chapter 17: Coded Caching with Secure Delivery

Learning Objectives

• Define the secure delivery model: external eavesdropper at the broadcast channel
• State the Sengupta-Tandon-Clancy (STC 2015) secrecy-rate-memory tradeoff
• Understand secret sharing-based placement
• Distinguish demand privacy (Ch 12) from delivery secrecy (Ch 17)
• Derive the memory overhead $M \geq 1$ required for secure delivery
• Compute secure rates for concrete parameter regimes