U disk information safety system based on information hiding and digital watermarking technology

Abstract

The invention discloses a U disk information safety system based on information hiding and digital watermarking technology, which comprises a confidential information hiding program and a hidden information extraction program. The confidential information hiding program is implemented by the following steps of: 1, extracting confidential information and a 'seed' password input by a user; 2, carrying out combined coding on the confidential information, the input 'seed' password and a wafer number of a U disk, which are used as relevant parameters, by using a digital watermarking generating algorithm to generate digital watermarking information; and 3, by using a digital watermarking embedding algorithm, loading a digital watermark into the common carrier file to generate a final carrier file with the hidden confidential information, which is indiscriminate from the carrier file visually. The hidden information extraction program is implemented by the following steps of: extracting watermarking information from the final carrier file by using a digital watermarking extraction algorithm; and operating the watermarking information by using a digital watermarking analytical algorithm and the 'seed' password input by the input user to obtain the hidden confidential information. The U disk information safety system has the advantages that: the information is well hidden and difficult to perceive, has high safety and is difficult to crack; and the system is convenient to manage and use.

Description

technical field [0001] The invention relates to a computer information security technology, specifically to a protection technology of confidential / private information, and belongs to the field of computer application technology. Background technique [0002] Along with the extensive application of personal computer, the use of U disk is quite popular, and the security problem of U disk use is also outstanding day by day. At present, incidents of secret information being leaked during the use of U disks occur frequently. folder, which plays a role in spying on secrets) has caused great harm to the information on the U disk, and the loss of U disk is also relatively common. The leakage of confidential information will cause serious harm to national security, the leakage of company confidential information will cause serious damage to the company's operation, development and economic interests, and the leakage of personal confidential information will also cause personal da...

AI Technical Summary

Problems solved by technology

And encrypted files, like the Great Wall, will attract a lot of attention. Attackers can use various methods including strong cracking to decompress files, so encrypted files are not safe

However, the existing safe U disk technologies are traditional encryption and decryption methods, some of which are basically copies of dongles, and their security is very poor.

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