Secure Semantic Communications: Fundamentals and Challenges

Understand

Semantic communication allows the receiver to know the intention instead of the bit information itself, which is an emerging technique to support real-time human-machine and machine-to-machine interactions for future wireless communications.

• In semantic communications, both transmitter and receiver share some common knowledge, which can be used to extract small-size information at the transmitter and recover the original information at the receiver.
• Due to different design purposes, security issues in semantic communications have two unique features compared to standard bit-wise communications.
• First, an attacker in semantic communications considers not only the amount of stolen data but also the meanings of stolen data.