Research and Application of Pseudo-information Detection Technology Based on Computer Information Hiding

Abstract

With the development and popularity of the Internet, the network has become one of the most important ways for people to access various resources. However, the open, shared and free nature of the Internet makes it convenient for users and also brings many security issues. How to ensure that data transmission is not illegally intercepted or tampered with and that sensitive information can be effectively protected has become an urgent problem. At present, there are two main solutions to this problem: one is to prevent data theft through encryption; the other is to use digital watermarking technology to embed secret information into the carrier, thus achieving covert communication. Either way has some drawbacks: the encryption algorithm is too complex and requires a large amount of computation, which is not suitable for real-time processing; although the digital watermarking technology can well resist the attacks of malicious attackers, its concealment capability is limited and cannot meet the needs of certain special fields. Therefore, this paper proposes a new scheme combining encryption algorithm and digital watermarking technology - a pseudo information detection technique based on computer information hiding. The technique uses the principle of cryptography to design a complete key management system, thus ensuring the safe and reliable operation of the whole system. The digital signature technology is used to generate random numbers as the watermark signal after pre-processing the original file, and then the watermark signal is sent to the receiver together with the original file, and finally the watermark signal is extracted to complete the verification work of the original file. The experimental results show that CIHD not only improves embedding efficiency and reduces embedding cost compared with traditional information hiding techniques, but also enhances anti-attack capability.