Hide and seek with quantum resources: new and modified protocols for quantum steganography

Steganography is the science of hiding and communicating a secret message by embedding it in an innocent looking text such that eavesdropper unaware its existence. Previously, attempts were made to establish steganography using quantum key distribution (QKD). Recently, has been shown protocols are vulnerable certain steganalysis attack can detect presence hidden suppress entire communication. In this work, we elaborate on vulnerabilities original protocol which make insecure against detection attack. Further, propose novel discrete modulation continuous variable QKD eliminates threat detection-based Deriving from properties our protocol, also modifications dispose insusceptible steganalysis.