Remote sensing image encryption method based on elliptic curve cryptosystem

Abstract

The invention discloses a remote sensing image encryption method based on an elliptic curve cryptosystem, including the following steps: A, an original remote sensing image file is transformed into a data file in DAT format under support of an IDL / ENVI system; B, Montgomery type elliptic curve is utilized to fast encrypt MODIS remote sensing image, wherein, the DN value of the remote sensing image is encrypted mainly; C, the image is reconstructed under the support of the IDL / ENVI system to complete visualization of the encrypted image; D, after receiving the encrypted remote sensing image, An ECC private key of an authorized user is used to decrypt so as to obtain a remote sensing image with concrete physical meaning, thus the remote sensing decryption method based on ECC is completed. The method improves encryption speed of the mass remote sensing image, enhances safe intensity of the encrypted image, and meanwhile eliminates scrambling process in the traditional image encryption mode, thus remaining the readability of the remote sensing image.

Description

technical field [0001] The invention relates to a remote sensing image encryption method based on an elliptic curve cryptosystem, belonging to the field of information security protection. Background technique [0002] With the development of sensor technology, data communication technology and other related technologies, modern remote sensing technology has entered a new stage of dynamic, fast, accurate, timely and multi-means to provide a variety of earth observation data. an important means. However, as the network is the core of the information age, people use the network to transmit information and realize information sharing. However, due to the openness and sharing of computer networks, while enjoying the convenience and sharing of modern network information, people are also facing various information security threats. Transmission bottleneck problem. Ordinary remote sensing images may have little impact if they are stolen or viewed, but remote sensing images conta...

AI Technical Summary

Problems solved by technology

However, the traditional encryption processing technology applied to the security processing of remote sensing image information has some limitations:

[0004] (2) Generally, the encryption of remote sensing image information is the "content" of the information, that is, to encrypt meaningful information into pseudo-random garbled codes, but it has a serious defect, that is, it destroys the "readability" of the information. How to properly remind the attacker which is the encrypted important information, thus exposing the importance of the information, is easy to cause the attacker's concentrated attack, so how to properly improve the security strength of the encryption system and properly retain the "readability" of the information image is also an image Security Research Hotspots

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