Real-time information hiding system and method based on two-dimensional code and reflective laminated imaging

Abstract

The invention discloses a real-time information hiding system and method based on a two-dimensional code and reflective laminated imaging. The real-time information hiding system does not move mechanically in an optical path. Synchronous operation of the SLM and the CCD is controlled only through a computer, in this way, a real-time information hiding system is formed in time; once the system is set up, other operations are not needed, only information needing to be hidden needs to be input into a computer, all the code hiding, transmitting and extracting processes can be completed rapidly, and the real-time performance and the processing efficiency of information hiding are improved. By adopting the real-time information hiding method to hide and decrypt the information, the key space andthe technical complexity of information hiding can be greatly increased, the difficulty of information cracking is increased, and the security and robustness of information hiding are improved.

Description

technical field [0001] The invention relates to the technical field of optical information security, in particular to a real-time information hiding system and method based on two-dimensional codes and reflective stacked imaging. Background technique [0002] Under the current situation of explosive development of information, people have higher and higher requirements for safe storage, safe transmission and safe processing of information. Therefore, information security has become one of the major global issues, which is related to politics, economy, Military, life and other aspects. However, the serial nature of digital information processing leads to its slow speed and low efficiency, which cannot meet people's growing information security needs. [0003] With the continuous progress of traditional digital information security research, modern optical theory and technology are gradually integrated into it. In 1995, researchers first proposed the dual random phase encodi...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a real-time information hiding system and method based on two-dimensional code and reflective stack imaging to solve the problems of poor real-time performance and low robustness of existing optical image encryption technology

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