Access to the Spatial Data in the Web-Oriented GIS

Rybalov, N.B.; Zhukovsky, Oleg I.

doi:10.1109/sibcon.2007.371307

Cited by 8 publications

(5 citation statements)

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“…The security techniques for GIS vector map data have been proposed in recent years [5][6][7][8][9]. Authors have mostly explained various methods to define an access control system for spatial data on the Web, or mentioned the security requirements for geospatial database management systems and privacy policies.…”

Section: Vector Map Data Securitymentioning

confidence: 99%

“…Firstly, the key value K us generated from the user's key by the SHA-512 hashing algorithm. The key value K is then used to compute a set of random Gaussian numbers as described by Equations (6) and (7) in Section 3.3. The encrypted objects are then extracted from the encrypted vector map and vertices are re-randomized by the random Gaussian numbers before decryption using the key value K. After the vertex re-randomization process, if the encrypted object cannot be simplified, it is decrypted by the key value K to generate the backbone object.…”

Section: Decryption Processmentioning

confidence: 99%

“…Consequently, GIS vector map data protection is necessary to prevent illegal duplication and distribution. GIS vector map security includes copyright protection [2][3][4], access control for users, and vector map data encryption in order to prevent attacks or illegal distribution during storage and transmission, and damage in the integration process of geographical information [5][6][7][8][9][10][11][12][13][14]. However, access control on the Web is unable to prevent attacks or illegal duplication and distribution, and watermarking techniques are only useful in identifying ownership and for copyright protection, while unauthorized users should not be able to see, attack, or extract GIS vector map content.…”

Section: Introductionmentioning

confidence: 99%

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Vector Map Random Encryption Algorithm Based on Multi-Scale Simplification and Gaussian Distribution

et al. 2019

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In recent years, GIS (Geographical Information System) vector maps are widely used in everyday life, science, and the military. However, the production process of vector maps is expensive, and a large volume of vector map data is easily stolen and illegally distributed. Therefore, original providers desire an encryption solution to encrypt GIS vector map data before being stored and transmitted in order to prevent pirate attacks and to ensure secure transmission. In this paper, we propose an encryption algorithm for GIS vector map data for preventing illegal copying, and ensuring secured storage and transmission. Polyline/polygon data of GIS vector maps are extracted to compute a backbone object. The backbone object is then selectively simplified by the multi-scale simplification algorithm in order to determine the feature vertices of the backbone object. The feature vertices of the backbone object are encrypted by the advanced encryption standard and the secret key. Finally, all vertices of the backbone object are randomized by the random Gaussian distribution algorithm to obtain the encrypted GIS vector map. Experimental results show that the entire map is altered completely after the encryption process. The proposed method is responsive to the various GIS vector map data formats, and also provides better security than previous methods. The computation time of the proposed method is also significantly shorter than that of previous methods.

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Section: Vector Map Data Securitymentioning

confidence: 99%

Section: Decryption Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Vector Map Random Encryption Algorithm Based on Multi-Scale Simplification and Gaussian Distribution

et al. 2019

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“…The general approach of selective encryption is to separate the content into two parts. The first part is the public part, which is un-encrypted and accessible by all users [7][8][9][10][11]. The second part is the protected part; it is encrypted.…”

Section: Related Workmentioning

confidence: 99%

Selective Encryption Scheme for Vector Map Data using Chaotic Map

Bang¹,

Moon²,

Lim³

et al. 2015

Journal of Korea Multimedia Society

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With the rapid interest in Geographic Information System (GIS) contents, a large volume of valuable GIS dataset has been distributed illegally by pirates, hackers, or unauthorized users. Therefore the problem focus on how to protect the copyright of GIS vector map data for storage and transmission. But GIS vector map data is very large and current data encryption techniques often encrypt all components of data. That means we have encrypted large amount of data lead to the long encrypting time and high complexity computation. This paper presents the selective encryption scheme using hybrid transform for GIS vector map data protection to store, transmit or distribute to authorized users. In proposed scheme, polylines and polygons in vector map are targets of selective encryption. We select the significant objects in polyline/polygon layer, and then they are encrypted by the key sets generated by using Chaotic map before changing them in DWT, DFT domain. Experimental results verified the proposed algorithm effectively and error in decryption is approximately zero.

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“…In encrypting domain, it has many conventional works relate to management, access, and storage, transmission data [8][9][10][11][12][13]. Selective encryption is not a new idea, has been proposed in several applications, especially, in multimedia systems.…”

Section: Related Workmentioning

confidence: 99%

Selective-encrypted GIS vector map with low complexity

Park

Giao

Seung

et al. 2015

2015 International Conference on Information Networking (ICOIN)

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Recently years, vector map has many advantages than raster map when it is used in many domains as research, education, military or digital map services. And in most cases vector map data contains confidential information which must be kept away from unauthorized users. Moreover, the producing process of a vector map is considerably complex, and the maintenance of a digital map requires substantial monetary, human resources. With the rapid development of vector map contents, a large volume of valuable vector map dataset has been illegal distributed by pirates, hackers or unauthorized users. Therefore the problem focuses on how to protect the vector map data for multimedia applications, storage and transmission. This paper presents the selective encryption algorithm for vector map protection for storage, transmission, distribution to authorized users. In proposed algorithm, we just select some values of polylines and polygons in DCT domain to encrypt by random algorithms and cryptography. Experimental results verified that proposed algorithm is effectively and security. Maps are changed whole after encryption process, and unauthorized users cannot access to copy or use them. Encrypted maps do not alter the size of file and it does not have loss accuracy. The error between original map and decrypted map is approximate zero

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Access to the Spatial Data in the Web-Oriented GIS

Cited by 8 publications

References 0 publications

Vector Map Random Encryption Algorithm Based on Multi-Scale Simplification and Gaussian Distribution

Vector Map Random Encryption Algorithm Based on Multi-Scale Simplification and Gaussian Distribution

Selective Encryption Scheme for Vector Map Data using Chaotic Map

Selective-encrypted GIS vector map with low complexity

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