Robust Message Hiding for QR Code

Response Code (QR code) is widely used in daily life in recent years because it has high capacity encoding of data, damage resistance, fast decoding and other good characteristics. Since it is popular, people can use it to transmit secret information without inspection. The development of steganography in QR code lead to many problems arising. How to keep the original content of QR code and embed secret information into it are the two main challenges. Hiding secret information based on bit technique is so fragile to modification attack. If an attacker change any bit of hidden bits, it is impossible to recover the secret information. In this paper, we proposed a scheme based on Reed-Solomon codes and List Decoding to overcome this problem. We also conduct our solution by analyzing the complexity, security, and experiment.