Watermarking Image Authentication in Hospital Information System

With the broad application of electronic management of medical records, the integrality and reality authentication of medical image in hospital information system have been in front us. In order to solute these problems, a novel watermarking image authentication based on DSA is presented. In this paper, we introduce digital signature arithmetic (DSA), and analyze the advantage and shortage of DSA. Then, considering the specialty of medical image, it brings forward integrating reversible digital watermarking with digital signature to form an authentication system. Finally, the system is designed and implemented by using the C# language. The experiment results show that the medical image is difficult to tamper. It effectively solves the problem of complete integrity and reality authentication of medical image.