Coordinate Transformation Parameter Encryption and Decryption Method Based on Dongle
A technology of coordinate conversion and dongle, which is applied in digital transmission system, digital data protection, electrical digital data processing, etc., can solve the problems of mutual conversion requirements, reduce storage space, improve confidentiality, and save memory card space Effect
Active Publication Date: 2020-09-25
昆明市测绘研究院
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although the 2000 National Geodetic Coordinate System has been fully used, in actual work, there is still a need for mutual conversion between the 1954 Beijing Coordinate System, the 1980 Xi’an Coordinate System, the 2000 National Geodetic Coordinate System, and the independent coordinate systems established based on the above coordinate systems.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0031] Sensi Elite 5 dongle (hereinafter referred to as Elite 5) is a new generation of hardware dongle produced by Beijing Sensi Digital Shield Technology Co., Ltd. It has the advantages of high security, fast computing speed, large storage space, and full built-in encryption algorithms.
[0032] The present invention uses Elite 5 to encrypt and decrypt coordinate transformation parameters. The parameter encryption process includes readin...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a coordinate transformation parameter encryption and decryption method based on a softdog. The method comprises the steps of reading text parameters, encrypting the parameters,writing in the parameters, reading parameters in a dog, decrypting the parameters, and converting coordinates, and by realizing the functions of parameter encryption, decryption, coordinate conversion and the like in the softdog, the method can be fixedly used by some professional secret-related personnel, and avoids the problem that parameter files are copied or decoded. By adopting a dual-encryption algorithm, the ciphertext file is interpreted by using the privacy of the softdog except the password of the user, so that the purpose of dual protection is achieved. According to the method, leakage of conversion parameters and a coordinate conversion process is effectively avoided, the secrecy strength is greatly improved, and the occupied storage memory is small.
Description
Technical field [0001] The invention belongs to the technical field of coordinate encryption, and relates to a method for encrypting and decrypting coordinate conversion parameters based on a dongle. Background technique [0002] With the implementation of the national requirements for the full use of the 2000 national geodetic coordinate system in July 2018, all types of land and resource spatial data need to be converted to the 2000 national geodetic coordinate system. Although the 2000 National Geodetic Coordinate System has been fully implemented, there are still needs for mutual conversion between the Beijing Coordinate System in 1954, the Xi'an Coordinate System in 1980, the 2000 National Geodetic Coordinate System and the independent coordinate systems based on the above coordinate systems in actual work. Surveying and mapping geographic information data is a basic and strategic resource related to national security. According to the "State Secret Catalogue of Surveying a...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08H04L9/30G06F21/60
CPCG06F21/602H04L9/0825H04L9/0872H04L9/302
Inventor 王友昆余章蓉陈裕汉张君华朱发浩魏保峰董国桥唐秀娟
Owner 昆明市测绘研究院