A novel quantum steganography with optimal private-key scheme

作者：Cao Dong^*; Song Yaoliang

来源：Journal of Information and Computational Science, 2011, 8(10): 1793-1800.

• Code-words
• Codeword
• Consumption rates
• Generation method
• New protocol
• Private-key
• Private-key encryption
• Quantum analog
• Quantum channel
• Quantum error correcting codes
• Quantum steganography
• Secret information
• Shared secrets
• Simulation result

Steganography is the technical method of hiding sensitive or secret information by embedding it in a large innocent message. Quantum steganography can be regarded as the quantum analog of classical one. In this paper, we firstly propose a new subset generation method according to accompanying codeword, and then present a novel quantum steganography protocol with optimal private-key scheme. The new protocol camouflages noise to build up the hidden channel within codewords of quantum error-correcting codes passing through a quantum channel. Encryption adopts quantum private key encryption using the classical key. The shared secret key is effectively recycled, and key consumption rate is greatly improved. The amount of key is significant reduction in the practical application. Simulation results show that we can successfully optimize the key consumption rate. Theoretical analysis shows that our protocol has good secrecy and security.

• 出版日期2011
• 单位南京理工大学