Radar data protection method based on combination of information hiding and encryption techniques

Abstract

The invention provides a radar data protection method based on the combination of information hiding and encryption techniques. The radar data protection method comprises the steps of hiding the encrypted radar data information in a digital image, and modifying the filename extension to further hide the file with the hidden radar data. According to the method, three barriers for protecting the radar data are established, and therefore, the probability that the confidential radar information is cracked can be effectively reduced and the security of the radar data can be protected better.

Description

technical field [0001] The invention belongs to the field of cryptography and information security, and in particular relates to a method for protecting radar data by combining information hiding and encryption technology. Background technique [0002] On October 10, 2011, according to foreign media Daily Star, the British Ministry of Defense used PDF documents to process confidential documents, resulting in a large amount of confidential information being leaked. The leaked document is a 22-page PDF of the "Radar Study on Air Defense and Air Traffic Systems (Part 2)" on the UK Parliament website. This is not the first time classified information has been leaked from the British Ministry of Defense. As early as April 18, 2011, the Naked Security website revealed that the British Ministry of Defense had leaked nuclear submarine secrets due to improper handling of PDF documents. At that time, the Naked Security website warned that any organization that publishes internal inf...

AI Technical Summary

Problems solved by technology

[0002] On October 10, 2011, according to foreign media Daily Star, the British Ministry of Defense used PDF documents to process confidential documents, resulting in a large amount of confidential information being leaked

First, the messy ciphertext is likely to attract the attention of the enemy, and the performance of modern computers is powerful, and the complexity of ciphertext deciphering is reduced. Even if it cannot be deciphered, the information may be destroyed, so that the legal recipients cannot receive the content of the information.

Second, if the ciphertext is deciphered by an illegal person, the confidential information will be completely exposed, and the encryption technology cannot continue to play a protective role

Third, encryption technology cannot monitor the reproduction and malicious modification of multimedia data after decryption

A comprehensive search of published papers and patents found no record of this approach being applied in the field of radar data protection

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